About this manual This manual contains service and reference information for the following Lenovo product: Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Use this manual to troubleshoot problems. The manual is divided into the following sections: • The common sections provide general information, guidelines, and safety information required for servicing computers. • The product‐specific section includes service, reference, and product‐specific parts information. Important: This manual is intended only for trained servicers who are familiar with Lenovo products. Use this manual to troubleshoot problems effectively. Before servicing a Lenovo product, make sure to read all the information under “Safety information” on page 1 and “Important service information” on page 16.
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Safety information This chapter presents the following safety information that you need to get familiar with before you service a Lenovo computer: • “General safety” on page 2 • “Electrical safety” on page 3 • “Safety inspection guide” on page 5 • “Handling devices that are sensitive to electrostatic discharge” on page 6 • “Grounding requirements” on page 6 • “Safety notices: multilingual translations” on page 7 • “Laser compliance statement” on page 14...
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual General safety Follow the following rules to ensure general safety: • Observe a good housekeeping in the area where the machines are put during and after the maintenance. • When lifting any heavy object: 1. Make sure that you can stand safely without slipping. 2. Distribute the weight of the object equally between your feet. 3. Use a slow lifting force. Never move suddenly or twist when you attempt to lift it. 4. Lift it by standing or pushing up with your leg muscles; this action could avoid the strain from the muscles in your back. Do not attempt to lift any object that weighs more than 16 kg (35 lb) or that you think is too heavy for you. • Do not perform any action that causes hazards to the customer, or that makes the machine unsafe. • Before you start the machine, make sure that other service representatives and the customer are not in a hazardous position. • Please remove covers and other parts in a safe place, away from all personnel, while you are servicing the machine. • Keep your tool case away from walk areas so that other people will not trip it over. • Do not wear loose clothing that can be trapped in the moving parts of the ...
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Electrical safety Observe the following rules when working on electrical equipments. Important: Use only approved tools and test equipments. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents. Many customers have rubber floor mats near their machines that contain small conductive fibers to decrease electrostatic discharges. Do not use such kind of mat to protect yourself from electrical shock. • Find the room emergency power‐off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly. • Do not work alone under hazardous conditions or near the equipment that has hazardous voltages. • Disconnect all power before: – Performing a mechanical inspection – Working near power supplies – Removing or installing main units • Before you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the customer to power‐off the wall box that supplies power to the machine, and to lock the wall box in the off position. • If you need to work on a machine that has exposed electrical circuits, observe the following precautions: – Ensure that another person, familiar with the power‐off controls, is near you. Attention: Another person must be there to switch off the power, if necessary.
Page 8
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual • Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, nongrounded power extension cables, power surges, and missing safety grounds. • Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is conductive; such touching can cause personal injury and machine damage. • Do not service the following parts with the power on when they are removed from their normal operating places in a machine: – Power supply units – Pumps – Blowers and fans – Motor generators and similar units. (This practice ensures correct grounding of the units.) • If an electrical accident occurs: – Use caution: do not become a victim yourself. – Switch off the power. – Send the victim to get medical aid.
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Safety inspection guide The purpose of this inspection guide is to assist you in identifying potential unsafe conditions. As each machine was designed and built, required safety items were installed to protect users and service personnel from injury. This guide addresses only those items. You should use good judgment to identify potential safety hazards due to attachment of non‐Lenovo features or options not covered by this inspection guide. If any unsafe conditions are present, you must determine how serious the apparent hazard could be and whether you can continue without first correcting the problem. Consider these conditions and the safety hazards they present: • Electrical hazards, especially primary power (primary voltage on the frame can cause serious or fatal electrical shock) • Explosive hazards, such as a damaged CRT face or a bulging capacitor • Mechanical hazards, such as loose or missing hardware To determine whether there are any potential unsafe conditions, use the following checklist at the beginning of every service task. Begin the checks with the power off, and the power cord disconnected. Checklist: 1. Check exterior covers for damage (loose, broken, or sharp edges). 2. Turn off the computer. Disconnect the power cord. 3. Check the power cord for: a. A third‐wire ground connector in good condition. Use a meter to measure third‐wire ground continuity for 0.1 ohm or less between the external ground pin and the frame ground. b. The power cord should be the type specified in the parts list. c. Insulation must not be frayed or worn.
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Handling devices that are sensitive to electrostatic discharge Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD). ESD damage can occur when there is a difference in charge between objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge. Notes: 1. Use product‐specific ESD procedures when they exceed the requirements noted here. 2. Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective. When handling ESD‐sensitive parts: • Keep the parts in protective packages until they are inserted into the product. • Avoid contact with other people. • Wear a grounded wrist strap against your skin to eliminate static on your body. • Prevent the part from touching your clothing. Most clothing is insulative and retains a charge even when you are wearing a wrist strap. • Use the black side of a grounded work mat to provide a static‐free work ...
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Safety notices: multilingual translations The safety notices in this section are provided in English, French, German, Hebrew, Italian, Japanese, and Spanish. Safety notice 1 Before the computer is powered on after FRU replacement, make sure all screws, springs, and other small parts are in place and are not left loose inside the computer. Verify this by shaking the computer and listening for rattling sounds. Metallic parts or metal flakes can cause electrical shorts. Avant de remettre l’ordinateur sous tension après remplacement d’une unité en clientèle, vérifiez que tous les ressorts, vis et autres pièces sont bien en place et bien fixées. Pour ce faire, secouez l’unité et assurez‐vous qu’aucun bruit suspect ne se produit. Des pièces métalliques ou des copeaux de métal pourraient causer un court‐circuit. Bevor nach einem FRU‐Austausch der Computer wieder angeschlossen wird, muß sichergestellt werden, daß keine Schrauben, Federn oder andere Kleinteile fehlen oder im Gehäuse vergessen wurden. Der Computer muß geschüttelt und auf Klappergeräusche geprüft werden. Metallteile oder‐ splitter können Kurzschlüsse erzeugen. Prima di accendere l’elaboratore dopo che é stata effettuata la sostituzione di una FRU, accertarsi che tutte le viti, le molle e tutte le altri parti di piccole dimensioni siano nella corretta posizione e non siano sparse all’interno dell’elaboratore. Verificare ciò scuotendo l’elaboratore e prestando attenzione ad eventuali rumori; eventuali parti o pezzetti metallici possono provocare cortocircuiti pericolosi. Antes de encender el sistema despues de sustituir una FRU, compruebe que todos los tornillos, muelles y demás piezas pequeñas se encuentran en su sitio y no se encuentran sueltas dentro del sistema. Compruébelo agitando el sistema y escuchando los posibles ruidos que provocarían. Las piezas metálicas pueden causar cortocircuitos eléctricos.
Page 12
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Safety notice 2 DANGER Some standby batteries contain a small amount of nickel and cadmium. Do not disassemble a standby battery, recharge it, throw it into fire or water, or short‐circuit it. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result in ignition or explosion of the battery. Certaines batteries de secours contiennent du nickel et du cadmium. Ne les démontez pas, ne les rechargez pas, ne les exposez ni au feu ni à l’eau. Ne les mettez pas en court‐circuit. Pour les mettre au rebut, conformez‐vous à la réglementation en vigueur. Lorsque vous remplacez la pile de sauvegarde ou celle de l’horloge temps réel, veillez à n’utiliser que les modèles cités dans la liste de pièces détachées adéquate. Une batterie ou une pile inappropriée risque de prendre feu ou d’exploser. Die Bereitschaftsbatterie, die sich unter dem Diskettenlaufwerk befindet, kann geringe Mengen Nickel und Cadmium enthalten. Sie darf nicht zerlegt, wiederaufgeladen, kurzgeschlossen, oder Feuer oder Wasser ausgesetzt werden. Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Beim Ersetzen der Bereitschafts‐oder Systembatterie nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgeführt ist. Der Einsatz falscher Batterien kann zu Entzündung oder Explosion führen. Alcune batterie di riserva contengono una piccola quantità di nichel e cadmio. Non smontarle, ricaricarle, gettarle nel fuoco o nell’acqua né cortocircuitarle. Smaltirle secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). Quando si sostituisce la batteria dell’RTC (real time clock) o la batteria di supporto, utilizzare soltanto i tipi inseriti nell’appropriato Catalogo parti. L’impiego di una batteria non adatta potrebbe determinare l’incendio o l’esplosione della batteria stessa. Algunas baterías de reserva contienen una pequeña cantidad de níquel y cadmio. No las desmonte, ni recargue, ni las eche al fuego o al agua ni las ...
Page 13
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Safety notice 3 DANGER The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or water, or short‐circuit it. Dispose of the battery pack as required by local ordinances or regulations. Use only the battery in the appropriate parts listing when replacing the battery pack. Use of an incorrect battery can result in ignition or explosion of the battery. La batterie contient du nickel. Ne la démontez pas, ne l’exposez ni au feu ni à l’eau. Ne la mettez pas en court‐circuit. Pour la mettre au rebut, conformez‐vous à la réglementation en vigueur. Lorsque vous remplacez la batterie, veillez à n’utiliser que les modèles cités dans la liste de pièces détachées adéquate. En effet, une batterie inappropriée risque de prendre feu ou d’exploser. Akkus enthalten geringe Mengen von Nickel. Sie dürfen nicht zerlegt, wiederaufgeladen, kurzgeschlossen, oder Feuer oder Wasser ausgesetzt werden. Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Beim Ersetzen der Batterie nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgeführt ist. Der Einsatz falscher Batterien kann zu Entzündung oder Explosion führen. La batteria contiene piccole quantità di nichel. Non smontarla, gettarla nel fuoco o nell’acqua né cortocircuitarla. Smaltirla secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). Quando si sostituisce la batteria, utilizzare soltanto i tipi inseriti nell’appropriato Catalogo parti. L’impiego di una batteria non adatta potrebbe determinare l’incendio o l’esplosione della batteria stessa. Las baterías contienen pequeñas cantidades de níquel. No las desmonte, ni recargue, ni las eche al fuego o al agua ni las cortocircuite. Deséchelas tal como dispone la normativa local. Utilice sólo baterías que se encuentren en la lista de piezas al sustituir la batería. La utilización de una batería no apropiada puede provocar la ignición o explosión de la misma.
Page 14
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Safety notice 4 DANGER The lithium battery can cause a fire, an explosion, or a severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100°C (212°F), incinerate it, or expose its cell contents to water. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result in ignition or explosion of the battery. La pile de sauvegarde contient du lithium. Elle présente des risques d’incendie, d’explosion ou de brûlures graves. Ne la rechargez pas, ne retirez pas son connecteur polarisé et ne la démontez pas. Ne l’exposez pas à une temperature supérieure à 100°C, ne la faites pas brûler et n’en exposez pas le contenu à l’eau. Mettez la pile au rebut conformément à la réglementation en vigueur. Une pile inappropriée risque de prendre feu ou d’exploser. Die Systembatterie ist eine Lithiumbatterie. Sie kann sich entzünden, explodieren oder schwere Verbrennungen hervorrufen. Batterien dieses Typs dürfen nicht aufgeladen, zerlegt, über 100 C erhitzt oder verbrannt werden. Auch darf ihr Inhalt nicht mit Wasser in Verbindung gebracht oder der zur richtigen Polung angebrachte Verbindungsstecker entfernt werden. Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Beim Ersetzen der Batterie nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgeführt ist. Der Einsatz falscher Batterien kann zu Entzündung oder Explosion führen. La batteria di supporto e una batteria al litio e puo incendiarsi, esplodere o procurare gravi ustioni. Evitare di ricaricarla, smontarne il connettore polarizzato, smontarla, riscaldarla ad una temperatura superiore ai 100 gradi centigradi, incendiarla o gettarla in acqua. Smaltirla secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). L’impiego di una batteria non adatta potrebbe determinare l’incendio o l’esplosione della batteria stessa.
Page 15
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Safety notice 5 If the LCD breaks and the fluid from inside the LCD gets into your eyes or on your hands, immediately wash the affected areas with water at least for 15 minutes. Seek medical care if any symptoms caused by the fluid are present after washing. Si le panneau d’affichage à cristaux liquides se brise et que vous recevez dans les yeux ou sur les mains une partie du fluide, rincez‐les abondamment pendant au moins quinze minutes. Consultez un médecin si des symptômes persistent après le lavage. Die Leuchtstoffröhre im LCD‐Bildschirm enthält Quecksilber. Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Der LCD‐Bildschirm besteht aus Glas und kann zerbrechen, wenn er unsachgemäß behandelt wird oder der Computer auf den Boden fällt. Wenn der Bildschirm beschädigt ist und die darin befindliche Flüssigkeit in Kontakt mit Haut und Augen gerät, sollten die betroffenen Stellen mindestens 15 Minuten mit Wasser abgespült und bei Beschwerden anschließend ein Arzt aufgesucht werden. Nel caso che caso l’LCD si dovesse rompere ed il liquido in esso contenuto entrasse in contatto con gli occhi o le mani, lavare immediatamente le parti interessate con acqua corrente per almeno 15 minuti; poi consultare un medico se i sintomi dovessero permanere. Si la LCD se rompe y el fluido de su interior entra en contacto con sus ojos o sus manos, lave inmediatamente las áreas afectadas con agua durante 15 minutos como mínimo. Obtenga atención medica si se presenta algún síntoma del fluido despues de lavarse.
Page 16
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Safety notice 6 DANGER To avoid shock, do not remove the plastic cover that protects the lower part of the inverter card. Afin d’éviter tout risque de choc électrique, ne retirez pas le cache en plastique protégeant la partie inférieure de la carte d’alimentation. Aus Sicherheitsgründen die Kunststoffabdeckung, die den unteren Teil der Spannungswandlerplatine umgibt, nicht entfernen. Per evitare scosse elettriche, non rimuovere la copertura in plastica che avvolge la parte inferiore della scheda invertitore. Para evitar descargas, no quite la cubierta de plástico que rodea la parte baja de la tarjeta invertida. Safety notice 7 DANGER Though the main batteries have low voltage, a shorted or grounded battery can produce enough current to burn personnel or combustible materials. Bien que le voltage des batteries principales soit peu élevé, le court‐circuit ou la mise à la masse d’une batterie peut produire suffisamment de courant pour brûler des matériaux combustibles ou causer des brûlures corporelles graves. Obwohl Hauptbatterien eine niedrige Spannung haben, können sie doch bei Kurzschluß oder Erdung genug Strom abgeben, um brennbare Materialien zu entzünden oder Verletzungen bei Personen hervorzurufen. Sebbene le batterie di alimentazione siano a basso voltaggio, una batteria in corto circuito o a massa può fornire corrente sufficiente da bruciare materiali combustibili o provocare ustioni ai tecnici di manutenzione. Aunque las baterías principales tienen un voltaje bajo, una batería cortocircuitada o con contacto a tierra puede producir la corriente suficiente como para quemar material combustible o provocar quemaduras en el ...
Page 17
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Safety notice 8 DANGER Before removing any FRU, turn off the computer, unplug all power cords from electrical outlets, remove the battery pack, and then disconnect any interconnecting cables. Avant de retirer une unité remplaçable en clientèle, mettez le système hors tension, débranchez tous les cordons d’alimentation des socles de prise de courant, retirez la batterie et déconnectez tous les cordons d’interface. Die Stromzufuhr muß abgeschaltet, alle Stromkabel aus der Steckdose gezogen, der Akku entfernt und alle Verbindungskabel abgenommen sein, bevor eine FRU entfernt wird. Prima di rimuovere qualsiasi FRU, spegnere il sistema, scollegare dalle prese elettriche tutti i cavi di alimentazione, rimuovere la batteria e poi scollegare i cavi di interconnessione. Antes de quitar una FRU, apague el sistema, desenchufe todos los cables de las tomas de corriente eléctrica, quite la batería y, a continuación, desconecte cualquier cable de conexión entre dispositivos.
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Laser compliance statement Some models of Lenovo computer are equipped from the factory with an optical storage device such as a CD‐ROM drive or a DVD‐ROM drive. Such devices are also sold separately as options. If one of these drives is installed, it is certified in the U.S. to conform to the requirements of the Department of Health and Human Services 21 Code of Federal Regulations (DHHS 21 CFR) Subchapter J for Class 1 laser products. Elsewhere, the drive is certified to conform to the requirements of the International Electrotechnical Commission (IEC) 825 and CENELEC EN 60 825 for Class 1 laser products. If a CD‐ROM drive, a DVD‐ROM drive, or another laser device is installed, note the following: CAUTION Use of controls or adjustments or performance of procedures other than those specified herein might result in hazardous radiation exposure. O uso de controles, ajustes ou desempenho de procedimentos diferentes daqueles aqui especificados pode resultar em perigosa exposição à radiação. Pour éviter tout risque d’exposition au rayon laser, respectez les consignes de réglage et d’utilisation des commandes, ainsi que les procédures décrites. Werden Steuer‐ und Einstellelemente anders als hier festgesetzt verwendet, kann gefährliche Laserstrahlung auftreten. L’utilizzo di controlli, regolazioni o l’esecuzione di procedure diverse da quelle specificate possono provocare l’esposizione a. El uso de controles o ajustes o la ejecución de procedimientos distintos de los aquí especificados puede provocar la exposición a radiaciones peligrosas. Opening the CD‐ROM drive, the DVD‐ROM drive, or any other optical storage device could result in exposure to hazardous laser radiation. There are no serviceable parts inside those drives. Do not open.
Page 19
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 A CD‐ROM drive, a DVD‐ROM drive, or any other storage device installed may contain an embedded Class 3A or Class 3B laser diode. Note the following: DANGER Emits visible and invisible laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam. Radiação por raio laser ao abrir. Não olhe fixo no feixe de luz, não olhe diretamente por meio de instrumentos óticos e evite exposição direta com o feixe de luz. Rayonnement laser si carter ouvert. Évitez de fixer le faisceau, de le regarder directement avec des instruments optiques, ou de vous exposer au rayon. Laserstrahlung bei geöffnetem Gerät. Nicht direkt oder über optische Instrumente in den Laserstrahl sehen und den Strahlungsbereich meiden. Kinyitáskor lézersugár ! Ne nézzen bele se szabad szemmel, se optikai eszközökkel. Kerülje a sugárnyalábbal való érintkezést! Aprendo l’unità vengono emesse radiazioni laser. Non fissare il fascio, non guardarlo direttamente con strumenti ottici e evitare l’esposizione diretta al fascio. Radiación láser al abrir. No mire fijamente ni examine con instrumental óptico el haz de luz. Evite la exposición directa al haz.
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Important service information This chapter presents the following important service information: • “Strategy for replacing FRUs” on page 16 – “Strategy for replacing a hard disk drive” on page 17 – “Important notice for replacing a system board” on page 17 • “Important information about replacing RoHS compliant FRUs” on page 18 Important: BIOS and device driver fixes are customer‐installable. The BIOS and device drivers are posted on the customer support site: http://consumersupport.lenovo.com/. Strategy for replacing FRUs Before replacing parts: Make sure that all software fixes, drivers, and BIOS downloads are installed before replacing any FRUs listed in this manual. After a system board is replaced, ensure that the latest BIOS is loaded to the system board before completing the service action. To download software fixes, drivers, and BIOS, follow the steps below: 1. Go to http://consumersupport.lenovo.com/ 2. Enter the serial number or select a product or use Lenovo smart downloading.
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Use the following strategy to prevent unnecessary expense for replacing and servicing FRUs: • If you are instructed to replace an FRU, but the replacement does not solve the problem, reinstall the original FRU before you continue. • Some computers have both a processor board and a system board. If you are instructed to replace either of them, and replacing one of them does not solve the problem, reinstall that board, and then replace the other one. • If an adapter or a device consists of more than one FRU, any of the FRUs may be the cause of the error. Before replacing the adapter or device, remove the FRUs one by one to see if the symptoms change. Replace only the FRU that changed the symptoms. Attention: The setup configuration on the computer you are servicing may have been customized. Running Automatic Configuration may alter the settings. Note the current configuration settings (using the View Configuration option); then, when service has been completed, verify that those settings remain in effect. Strategy for replacing a hard disk drive Always try to run a low‐level format before replacing a hard disk drive. This will cause all customer data on the hard disk to be lost. Make sure that the customer has a current backup of the data before performing this action. Attention: The drive startup sequence in the computer you are servicing may have been changed. Be extremely careful during write operations such as copying, saving, or formatting. If you select an incorrect drive, data or programs can be overwritten. Important notice for replacing a system board Some components mounted on a system board are very sensitive. Improper ...
Electronic Equipment Directive (2002/95/EC) is a European Union legal requirement affecting the global electronics industry. RoHS requirements must be implemented on Lenovo products placed on the market after June 2006. Products on the market before June 2006 are not required to have RoHS compliant parts.
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 General checkout This chapter presents the following information: • “What to do first” on page 20 • “Power system checkout” on page 21 Before you go to the checkout, make sure to read the following important notes: Important notes: • Only certified trained personnel can service the computer. • Before replacing any FRU, read the entire page on removing and replacing FRUs. • When you replace FRUs, use new nylon-coated screws.
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual What to do first When you do return an FRU, you must include the following information in the parts exchange form or parts return form that you attach to it: 1. Name and phone number of servicer 2. Date of service 3. Date on which the machine failed 4. Date of purchase 5. Procedure index and page number in which the failing FRU was detected 6. Failing FRU name and part number 7. Machine type, model number, and serial number 8. Customer’s name and address Note for warranty: During the warranty period, the customer may be responsible for repair costs if the computer damage was caused by misuse, accident, modification, unsuitable physical or operating environment, or improper maintenance by the customer. The following is a list of some common items that are not covered under warranty and some symptoms that might indicate that the system was subjected to stress beyond normal use. Before checking problems with the computer, determine whether the damage is covered under the warranty by referring to the following list: The following are not covered under warranty: •...
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Power system checkout To verify a symptom, follow the steps below: 1. Turn off the computer. 2. Remove the battery pack. 3. Connect the AC adapter. 4. Make sure that power is supplied when you turn on the computer. 5. Turn off the computer. 6. Disconnect the AC adapter and install the charged battery pack. 7. Make sure that the battery pack supplies power when you turn on the computer. If you suspect a power problem, see the appropriate one of the following power supply checkouts: • “Checking the AC adapter” on page 21 • “Checking operational charging” on page 21 • “Checking the battery pack” on page 22 Checking the AC adapter You are here because the computer fails only when the AC adapter is used. • If the power‐on indicator does not turn on, check the power cord of the AC adapter for correct continuity and installation. • If the computer does not charge during operation, go to “Checking ...
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Perform operational charging. If the battery status indicator or icon does not light on, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator or icon is still off, replace the battery pack. If the charge indicator still does not light on, replace the system board. Then reinstall the battery pack. If it is still not charged, go to the next section. Checking the battery pack Battery charging does not start until the Power Meter shows that less than 95% of the total power remains; under this condition the battery pack can charge to 100% of its capacity. This protects the battery pack from being overcharged or from having a shortened life. To check your battery, move your cursor to the Power Meter icon in the icon tray ® of the Windows taskbar and wait for a moment (but do not click it), and the percentage of battery power remaining is displayed. To get detailed information about the battery, double‐click the Power Meter icon. Note: If the battery pack becomes hot, it may not be able to be charged. Remove it from the computer and leave it at room temperature for a while. After it cools down, reinstall and recharge it.
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Related service information This chapter presents the following information: • “Restoring the factory contents by using Recovery Disc Set” on page 23 • “Passwords” on page 24 • “Power management” on page 25 Restoring the factory contents by using Recovery Disc Set Restore of factory default This topic provides information about the recovery programs that are available for you to recover the computer settings. • Windows 7: The following recovery programs are available on computers with a Windows 7 operating system: – OneKey Recovery Pro The OneKey Recovery Pro program enables you to back up all your hard disk drive contents, including the operating system, data files, software programs, and personal settings. You can designate where the OneKey Recovery Pro program stores the backup. After you have backed up the contents on the hard disk drive, you can restore the complete contents of the hard disk drive, ...
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Passwords As many as three passwords may be needed for any Lenovo computer: the power‐on password (POP), the hard disk password (HDP), and the supervisor password (SVP). If any of these passwords has been set, a prompt for it appears on the screen whenever the computer is turned on. The computer does not start until the password is entered. Exception: If only an SVP is installed, the password prompt does not appear when the operating system is booted. Power-on password A power‐on password (POP) protects the system from being powered on by an unauthorized person. The password must be entered before an operating system can be booted. Hard-disk password There are two hard‐disk passwords (HDPs): + User HDP ‐ for the user + Master HDP ‐ for the system administrator, who can use it to get access to the hard disk drive even if the user has changed the user HDP Attention: If the user HDP has been forgotten, check whether a master HDP has been set. If it has, it can be used for access to the hard disk drive. If no master HDP is available, neither Lenovo nor Lenovo authorized service technicians provide any services to reset either the user or the master HDP, or to recover data from the hard disk drive. The hard disk drive can be replaced for a scheduled fee. Supervisor password A supervisor password (SVP) protects the system information stored in the BIOS Setup Utility. The user must enter the SVP in order to get access to the BIOS Setup Utility and change the system configuration. Attention: If the SVP has been forgotten and cannot be made available to the servicer, there is no service procedure to reset the password. The system board must be replaced for a scheduled fee.
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Power management Note: Power management modes are not supported for APM operating system. To reduce power consumption, the computer has three power management modes: screen blank, sleep (standby), and hibernation. Screen blank state If the time set on the “Turn off monitor” timer in the operating system expires, the LCD backlight turns off. You can also turn off the LCD backlight by pressing F9 To end screen blank state and resume normal operation, press F9 Putting the computer to sleep or shutting it down When you have finished working with your computer, you can put it to sleep or shut it down. Putting your computer to sleep If you will be away from your computer for only a short time, put the computer to sleep. When the computer is in sleep mode, you can quickly wake it to resume use, bypassing the startup process. To put the computer to sleep: • For the Windows 7 operating system: – Click Start Sleep.
Page 30
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Shutting down the computer If you are not going to use your computer for a long time, shut it down. To shut down your computer: • For Window 7 operating system: Click Start Shut down. • For Window 8 operating system: – Open the charms bar, then select Settings – Select Power Shut down.
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Lenovo B50-30/B50-30 Touch/B50-45/B50-70 This chapter presents the following product‐specific service references and product‐specific parts information: • “Specifications” on page 27 • “Status indicators” on page 29 • “Fn key combinations” on page 30 • “FRU replacement notices” on page 31 • “Removing and replacing an FRU” on page 32 • “Locations” on page 65 • “Parts list” on page 68 Specifications The following table lists the specifications of the Lenovo B50‐30/B50‐30 Touch/ B50‐45/B50‐70: Table 1. Specifications Feature Description Processor To view the processor information, do the following: • For Windows 7: Click Start, right‐click Computer, and select Properties from the pull‐down menu. • For Windows 8: Move the cursor to the top right or bottom right corner to display the charms, click Settings, and then click PC info. Core Chipset • AMD Radeon R5 M230 Graphic Chipset...
Page 32
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Table 1. Specifications (continued) Feature Description • Combo audio jack × 1 I/O ports • RJ45 × 1 • HDMI port × 1 • USB 2.0 × 2, USB 3.0 × 1 or USB 2.0 × 1, USB 3.0 × 2 • 4 in 1 slot × 1 (SD, SDHC, SDXC, MMC) • Combo audio jack × 1 Audio • Speaker × 2 • Built‐in microphone × 1 (on select models) Video CRT× 1, HDMI port × 1 • Intel 1x1 11ac + BT4.0 combo (on select WLAN models) • Intel 2x2 11ac + BT4.0 combo (on select models) • Non‐Intel 1x1 11bgn + BT4.0 combo •...
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Status indicators The system status indicators below show the computer status: Table 2. Status indicators Indicator Status Meaning • The battery has a charge between 20% and 100% and the AC adapter is not connected to the computer. Green • The battery has a charge between 80% and 100% and the AC power adapter is connected to the computer. • The battery has a charge between 20% and 80% and the AC power adapter is connected to the Power and Blinking Green computer. battery • The computer is in sleep mode. status indicator The battery has a charge between 5% and 20% and Amber the AC adapter is not connected to the computer. The battery has a charge of 20% or less and the AC Blinking amber power adapter is connected to the computer. • The battery is detached.
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Fn key combinations The following table shows the function of each combination of Fn with a function key. Table 3. Fn key combinations Key combination Description Fn + Home: Activate the pause function. Fn + End: Activate the break function. Fn + PgUp: Enable/disable the scroll lock. Fn + PgDn: Activate the insert function. Hotkeys The hotkeys are located in the function key row of the keyboard. By pressing the appropriate hotkey, you can change system settings instantly. The following describes the function of each hotkey. Table 4. Hotkeys Enables/disables Airplane Mutes/unmutes the sound. mode. Switches the active Decreases the volume level. program. Turns the LCD screen Increases the volume level. backlight on/off. Closes the currently active Projects to a connected ...
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 FRU replacement notices This section presents notices related to removing and replacing parts. Read this section carefully before replacing any FRU. Screw notices Loose screws can cause a reliability problem. In the Lenovo computer, this problem is addressed with special nylon‐coated screws that have the following characteristics: • They maintain tight connections. • They do not easily come loose, even with shock or vibration. • They are harder to tighten. • Each one should be used only once. Do the following when you service this machine: • Keep the screw kit in your tool bag. • Remove screws carefully for reuse. • Use a torque screwdriver if you have one. Tighten screws as follows: • Plastic to plastic Turn an additional 90° after the screw head touches the surface of the plastic part: more than 90° (Cross-section) • Logic card to plastic Turn an additional 180° after the screw head touches the surface of the logic ...
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Removing and replacing an FRU This section presents exploded figures with the instructions to indicate how to remove and replace the FRU. Make sure to observe the following general rules: 1. Do not attempt to service any computer unless you have been trained and certified. An untrained person runs the risk of damaging parts. 2. Before replacing any FRU, review “FRU replacement notices” on page 31. 3. Begin by removing any FRUs that have to be removed before the failing FRU. Any of such FRUs are listed at the top of the page. Remove them in the order in which they are listed. 4. Follow the correct sequence in the steps to remove the FRU, as given in the figures by the numbers in square callouts. 5. When turning a screw to replace an FRU, turn it in the direction as given by the arrow in the figure. 6. When removing the FRU, move it in the direction as given by the arrow in the figure. 7. To put the new FRU in place, reverse the removal procedures and follow any of the notes that pertain to replacement. For information about connecting and arranging internal cables, see “Locations” on page 65. 8. When replacing an FRU, use the correct screw as shown in the procedures. DANGER Before removing any FRU, turn off the computer, unplug all power cords ...
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 1010 Battery pack DANGER • Only use the battery specified in the parts list for your computer. Any other battery could ignite or explode. Figure 1. Removal steps of battery pack Unlock the manual battery latch . While holding the spring‐loaded battery latch in the unlocked position , then remove the battery pack in the direction shown by arrow When installing: Install the battery pack along the slide rails of the slot. Then make sure the manual battery latch in the lock position. ...
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual 1020 Optical drive For access, remove this FRU: “1010 Battery pack” on page 33 Figure 2. Removal steps of optical drive Remove the screw . Then remove the optical drive by arrow Step Screw (quantity) Color Torque M2 x 6 mm, flat‐head, nylok‐coated (1) Black 1.5~2.0kgf.cm Unsnap to remove the optical drive bezel in the direction by arrow ...
Page 39
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Figure 2. Removal steps of optical drive (continued) Remove two screws and remove the optical drive bracket in the direction by arrow Step Screw (quantity) Color Torque M2 x 3 mm, flat‐head, nylok‐coated (2) Black 1.0~1.5kgf.cm...
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual 1030 Bottom slot cover For access, remove this FRU: “1010 Battery pack” on page 33 Figure 3. Removal steps of bottom slot cover Remove the two screws . Then remove the bottom slot cover by arrow Step Screw (quantity) Color Torque M2.5 x 5 mm, flat‐head, nylok‐coated (2) Black 2.0~2.5kgf.cm...
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 1040 Hard disk drive For access, remove these FRUs in order: • “1010 Battery pack” on page 33 • “1030 Bottom slot cover” on page 36 Attention: • Do not drop the hard disk drive or apply any physical shock to it. The hard disk drive is sensitive to physical shock. Improper handling can cause damages and permanent loss of data. • Before removing the drive, suggest the customer to backup all the information on it if possible. • Never remove the drive while the system is operating or in suspend mode. Figure 4. Removal steps of hard disk drive Remove two frame fixing screws . Remove the hard disk drive in the direction by arrow ...
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Figure 4. Removal steps of hard disk drive (continued) Remove four screws and detach the hard disk drive from the metal frame in the direction shown by arrow Step Screw (quantity) Color Torque M3 x 3 mm, flat‐head, nylok‐coated (4) Silver 2.5~3.0kgf.cm When installing: Make sure that the HDD connector is attached firmly.
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 1050 DIMM For access, remove these FRUs in order: • “1010 Battery pack” on page 33 • “1030 Bottom slot cover” on page 36 Figure 5. Removal steps of DIMM Release the two latches on both edges of the socket at the same time in the direction shown by arrows , and then unplug the DIMM in the direction shown by arrow When installing: • Insert the notched end of the DIMM into the socket. Push the DIMM firmly, and pivot it until it snaps into the place. Make sure that it is firmly fixed in the slot and difficult to be moved. • For B50‐30: Two memory channels are supported. Both channels have memory of same size and ranks.It is a must that SODIMM is inserted in SLOT1. ...
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual 1060 PCI Express Mini Card for wireless LAN/WAN For access, remove these FRUs in order: • “1010 Battery pack” on page 33 • “1030 Bottom slot cover” on page 36 Figure 6. Removal steps of PCI Express Mini Card for wireless LAN/WAN Disconnect the two wireless LAN cables (black, white) , and then remove the screws In step , unplug the jacks by using the removal tool antenna RF connector (P/N: 08K7159), or pick up the connectors with your fingers and gently unplug them in the direction shown by arrows. Notes: wireless LAN card has 2 cables in step Wireless LAN card in some models may have 3 cables in step Step Screw (quantity) Color Torque M2 x 3 mm, flat‐head, nylok‐coated (1) Black 1.0~1.5kgf.cm Remove the card in the direction shown by arrow When installing: Plug the black cable into the jack labeled AUX and the white ...
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 1070 Keyboard For access, remove this FRU: • “1010 Battery pack” on page 33 Figure 7. Removal steps of keyboard Remove three screws Step Screw (quantity) Color Torque M2 x 6 mm, flat‐head, nylok‐coated (3) Black 1.5~2.0kgf.cm Pull to unsnap the keyboard in the direction by arrows ...
Page 46
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Figure 7. Removal steps of keyboard (continued) Lift up the keyboard and disconnect the connector in the direction shown by arrows . Be careful not to damage the connector. When installing: Make sure that the keyboard connector is attached firmly to the system board.
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 1080 Keyboard bezel For access, remove these FRUs: • “1010 Battery pack” on page 33 • “1020 Optical drive” on page 34 • “1030 Bottom slot cover” on page 36 • “1070 Keyboard” on page 41 Figure 8. Removal steps of keyboard bezel Remove nine screws and three screws Step Screw (quantity) Color Torque M2.5 x 5 mm, flat‐head, nylok‐coated (9) Black 2.0~2.5kgf.cm M2 x 2 mm, flat‐head, nylok‐coated (3) Black 1.0~1.5kgf.cm...
Page 48
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Figure 8. Removal steps of keyboard bezel (continued) Disconnect the three connectors in the direction shown by arrow and remove the keyboard bezel by arrow When installing: Make sure that all the connectors are attached firmly.
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 1090 Finger print and power board For access, remove these FRUs: • “1010 Battery pack” on page 33 • “1020 Optical drive” on page 34 • “1030 Bottom slot cover” on page 36 • “1070 Keyboard” on page 41 • “1080 Keyboard bezel” on page 43 Figure 9. Removal steps of finger print and power board Disconnect the finger print connect in the direction by arrow . Remove the screw . Remove the finger print bracket in the direction by arrow . Then remove the finger print by arrow Step Screw (quantity) Color Torque M2 x 3 mm, flat‐head, nylok‐coated (1) Black 1.0~1.5kgf.cm...
Page 50
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Figure 9. Removal steps of finger print and power board (Continued) Peel off the adhesive of the power board FPC. Remove the screw . Then remove the power board in the direction by arrow Step Screw (quantity) Color Torque M2 x 3 mm, flat‐head, nylok‐coated (1) Black 1.0~1.5kgf.cm When installing: Make sure that the finger print connector is attached firmly.
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 1100 USB board and ODD board For access, remove these FRUs: • “1010 Battery pack” on page 33 • “1020 Optical drive” on page 34 • “1030 Bottom slot cover” on page 36 • “1070 Keyboard” on page 41 • “1080 Keyboard bezel” on page 43 Figure 10. Removal steps of USB board and ODD board Disconnect two connectors in the direction shown by arrow . Remove the screws . Then remove the USB board and ODD board in the direction shown by arrow . Step Screw (quantity) Color Torque M2.5 x 4 mm, flat‐head, nylok‐coated (3) Black 2.0~2.5kgf.cm When installing: Make sure that the ODD and USB connectors are attached firmly.
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual 1110 Led board For access, remove these FRUs: • “1010 Battery pack” on page 33 • “1020 Optical drive” on page 34 • “1030 Bottom slot cover” on page 36 • “1070 Keyboard” on page 41 • “1080 Keyboard bezel” on page 43 Figure 11. Removal steps of led board Detach the adhesive of the led board by arrow .Peel off the FPC of the led board by arrow to remove it. When installing: Make sure that the led connector is attached firmly.
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 1120 Docking board (on select models) For access, remove these FRUs: • “1010 Battery pack” on page 33 • “1020 Optical drive” on page 34 • “1030 Bottom slot cover” on page 36 • “1070 Keyboard” on page 41 • “1080 Keyboard bezel” on page 43 Figure 12. Removal steps of docking board Disconnect two connectors in the direction by arrow . Remove two screws . Then remove the docking board in the direction by arrow . Step Screw (quantity) Color Torque M2.5 x 4 mm, flat‐head, nylok‐coated (2) Black 2.0~2.5kgf.cm When installing: Make sure that the two connectors are attached firmly.
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual 1130 System board Important notices for handling the system board: When handling the system board, bear the following in mind. • Be careful not to drop the system board on a bench top that has a hard surface, such as metal, wood, or composite. • Avoid rough handling of any kind. • In the whole process, make sure not to drop or stack the system board. • If you put a system board down, make sure to put it only on a padded surface such as an ESD mat or conductive corrugated material. For access, remove these FRUs: • “1010 Battery pack” on page 33 • “1020 Optical drive” on page 34 • “1030 Bottom slot cover” on page 36 • “1040 Hard disk drive” on page 37 • “1050 DIMM” on page 39 • “1060 PCI Express Mini Card for wireless LAN/WAN” on page 40 •...
Page 55
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Figure 13. Removal steps of system board (continued) Disconnect the ODD board connector and the USB board connector in the direction shown by arrow . Then disconnect the EDP connector in the direction shown by arrow Remove two screws , screw and two screws Step Screw (quantity) Color Torque M2.5 x 4 mm, flat‐head, nylok‐coated (2) Black 2.0~2.5kgf.cm M2 x 5 mm, flat‐head, nylok‐coated (1) Silver 1.5~2.0kgf.cm M2 x 3 mm, flat‐head, nylok‐coated (2) Black 1.0~1.5kgf.cm...
Page 56
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Figure 13. Removal steps of system board (continued) For B50‐70 (on select models): Disconnect the two docking connectors by arrows , then remove the system board in the direction by arrow For B50‐30/B50‐30 Touch/B50‐45/B50‐70: Pull the DC‐IN connector from its cavity in the direction by arrow and remove the system board in the direction shown by arrow When installing: • Make sure USB, HDMI, and the VGA of the system board attached into its holes on the base properly. Improper placement of the jacks may cause damage. • Make sure that the connectors are attached firmly to the system board.
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 1140 Fan and heat sink assembly For access, remove these FRUs in order: • “1010 Battery pack” on page 33 • “1020 Optical drive” on page 34 • “1030 Bottom slot cover” on page 36 • “1040 Hard disk drive” on page 37 • “1050 DIMM” on page 39 • “1060 PCI Express Mini Card for wireless LAN/WAN” on page 40 • “1070 Keyboard” on page 41 • “1080 Keyboard bezel” on page 43 • “1110 Led board” on page 48 • “1130 System board” on page 50 Figure 14. Removal steps of fan and heat sink assembly Disconnect the fan connector in the direction by arrow . Remove the screw and six screws . Then remove the fan and heat sink in the direction as shown by arrow Step Screw (quantity) Color Torque M2 x 5 mm, flat‐head, nylok‐coated (1) ...
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual 1150 Speakers and battery board For access, remove these FRUs: • “1010 Battery pack” on page 33 • “1020 Optical drive” on page 34 • “1030 Bottom slot cover” on page 36 • “1040 Hard disk drive” on page 37 • “1050 DIMM” on page 39 • “1060 PCI Express Mini Card for wireless LAN/WAN” on page 40 • “1070 Keyboard” on page 41 • “1080 Keyboard bezel” on page 43 • “1110 Led board” on page 48 • “1130 System board” on page 50 Figure 15. Removal steps of speakers and battery board Remove two screws and four screws . Remove the speakers and the battery board in the direction by arrow Step Screw (quantity) Color Torque M2.5 x 4 mm, flat‐head, nylok‐coated (2) ...
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 1160 LCD unit and base cover For access, remove these FRUs: • “1010 Battery pack” on page 33 • “1020 Optical drive” on page 34 • “1030 Bottom slot cover” on page 36 • “1040 Hard disk drive” on page 37 • “1050 DIMM” on page 39 • “1060 PCI Express Mini Card for wireless LAN/WAN” on page 40 • “1070 Keyboard” on page 41 • “1080 Keyboard bezel” on page 43 • “1100 USB board and ODD board” on page 47 • “1110 Led board” on page 48 • “1120 Docking board (on select models)” on page 49 • “1130 System board” on page 50 Figure 16. Removal steps of LCD unit and base cover Release the two antenna cables from the cable guides by arrows. Remove six screws Step Screw (quantity)
Page 60
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Figure 16. Removal steps of LCD unit and base cover (continued) Remove the LCD unit from the base cover in the direction by arrow ...
Page 61
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 For Windows 7 operating System: Note: Applying labels to the base cover The new base cover FRU is shipped with a kit containing labels of several kinds. When you replace the base cover, you need to apply the following labels: The following labels need to be peeled off from the old base cover, and put on the new base cover. Palm Rest Label ES label VGA label CPU label Win7 C‐Sticker Rating label Rating print label WLAN & BT Label Indonesia rating label COA label For some models, you also need to apply one or two FCC labels. Check the old base cover; if it has one or two FCC labels, find duplicates of them in the label kit and apply them to the new base cover. For the location of each label, refer to the following figure: B50‐30/B50‐30 Touch/B50‐45/B50‐70: Notes: No WLAN & BT Label (h) case, align the Indonesia rating label (i) to the WLAN&BT label (h).
Page 62
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual For Windows 8 operating System: Note: Applying labels to the base cover The new base cover FRU is shipped with a kit containing labels of several kinds. When you replace the base cover, you need to apply the following labels: The following labels need to be peeled off from the old base cover, and put on the new base cover. Palm Rest Label ES label VGA label CPU label Rating label Rating print label WLAN & BT Label Indonesia rating label GML Label For some models, you also need to apply one or two FCC labels. Check the old base cover; if it has one or two FCC labels, find duplicates of them in the label kit and apply them to the new base cover. For the location of each label, refer to the following figure: B50‐30/B50‐30 Touch/B50‐45/B50‐70: Notes: No WLAN & BT Label (g) case, align the Indonesia rating label (h) to the WLAN&BT label (g).
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 1170 LCD front bezel For access, remove these FRUs: • “1010 Battery pack” on page 33 • “1020 Optical drive” on page 34 • “1030 Bottom slot cover” on page 36 • “1040 Hard disk drive” on page 37 • “1050 DIMM” on page 39 • “1060 PCI Express Mini Card for wireless LAN/WAN” on page 40 • “1070 Keyboard” on page 41 • “1080 Keyboard bezel” on page 43 • “1110 Led board” on page 48 • “1130 System board” on page 50 • “1160 LCD unit and base cover” on page 55 Figure 17. Removal steps of LCD front bezel Remove the LCD front bezel in the direction by arrow ...
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual 1180 LCD panel For access, remove these FRUs in order: • “1010 Battery pack” on page 33 • “1020 Optical drive” on page 34 • “1030 Bottom slot cover” on page 36 • “1040 Hard disk drive” on page 37 • “1050 DIMM” on page 39 • “1060 PCI Express Mini Card for wireless LAN/WAN” on page 40 • “1070 Keyboard” on page 41 • “1080 Keyboard bezel” on page 43 • “1110 Led board” on page 48 • “1130 System board” on page 50 • “1160 LCD unit and base cover” on page 55 • “1170 LCD front bezel” on page 59 Figure 18. Removal steps of LCD panel Remove four screws . Step Screw (quantity)
Page 65
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Figure 18. Removal steps of LCD panel (continued) Turn over the LCD module in the direction as shown by arrow . Disconnect the connector by arrow to remove the LCD panel in the direction by arrow When installing: Make sure that the LCD panel connector is attached firmly.
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual 1190 LCD hinges For access, remove these FRUs: • “1010 Battery pack” on page 33 • “1020 Optical drive” on page 34 • “1030 Bottom slot cover” on page 36 • “1040 Hard disk drive” on page 37 • “1050 DIMM” on page 39 • “1060 PCI Express Mini Card for wireless LAN/WAN” on page 40 • “1070 Keyboard” on page 41 • “1080 Keyboard bezel” on page 43 • “1110 Led board” on page 48 • “1130 System board” on page 50 • “1160 LCD unit and base cover” on page 55 • “1170 LCD front bezel” on page 59 • “1180 LCD panel” on page 60 Figure 19. Removal steps of hinges Remove two screws and six screws ...
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 1200 Antenna, LCD cable, and integrated camera For access, remove these FRUs in order: • “1010 Battery pack” on page 33 • “1020 Optical drive” on page 34 • “1030 Bottom slot cover” on page 36 • “1040 Hard disk drive” on page 37 • “1050 DIMM” on page 39 • “1060 PCI Express Mini Card for wireless LAN/WAN” on page 40 • “1070 Keyboard” on page 41 • “1080 Keyboard bezel” on page 43 • “1110 Led board” on page 48 • “1130 System board” on page 50 • “1160 LCD unit and base cover” on page 55 • “1170 LCD front bezel” on page 59 • “1180 LCD panel” on page 60 • “1190 LCD hinges” on page 62 Figure 20. Removal steps of Antenna, LCD cable, and integrated camera ...
Page 68
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Figure 20. Removal steps of Antenna, LCD cable, and integrated camera Release two antenna cables and one LCD cable from the cable guide. Detach the adhesive of the antenna to remove them in the direction by arrow When installing: • Route the antenna cables along the cable guides and secure the antenna boards with adhesive tapes. As you route the cables, make sure that they are not subjected to any tension. Tension can cause the cables to be damaged by the cable guides, or a wire to be broken. • Make sure that the camera connector is attached firmly.
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Bottom and left-side view AC power adapter jack Lenovo OneLink connector (on selected models) Louvers VGA port RJ‐45 port HDMI port USB port...
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Parts list This section presents the following service parts: • “Overall” on page 69 • “LCD FRUs” on page 73 • “Keyboard” on page 75 • “Miscellaneous parts” on page 78 • “AC adapters” on page 79 • “Screws” on page 79 • “Power cords” on page 80 Notes: Each FRU is available for all types or models, unless specific types or models are specified.
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Keyboard Table 7. Parts list—Keyboard Language CRU ID English 25214785 U.K. English 25214786 Italian 25214787 Spanish 25214788 Turkish 25214789 Thailand 25214790 Portugue 25214791 Latin 25214792 Canada English &French 25214793 Korean 25214794 Tradational Chinese 25214795 Russian 25214796 French 25214797 German 25214798 Dafon Arabic 25214799 Brazilian 25214800...
Page 80
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Table 7. Parts list—Keyboard (continued) Language CRU ID English 25214755 U.K. English 25214756 Italian 25214757 Spanish 25214758 Turkish 25214759 Thailand 25214760 Portugue 25214761 Latin 25214762 Canada English &French 25214763 Korean 25214764 Tradational Chinese 25214765 Russian 25214766 French 25214767 German 25214768 Arabic 25214769 Sunrex...
Page 81
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Table 7. Parts list—Keyboard (continued) Language CRU ID English 25214725 U.K. English 25214726 Italian 25214727 Spanish 25214728 Turkish 25214729 Thailand 25214730 Portugue 25214731 Latin 25214732 Canada English &French 25214733 Korean 25214734 Tradational Chinese 25214735 Russian 25214736 French 25214737 German 25214738 Chicony Arabic 25214739 Brazilian 25214740 Dutch...
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Power cords A Lenovo power cord for a specific country or region is usually available only in that country or region: Table 11. Parts list—3‐pin power cords Region U ID Brazil 145‐000596 • LINETEK LS15 H03VV‐F LP26A 1m Brazil 145‐000564 • Longwell LP‐46+H03VV‐F+LS‐18 1m Brazil 145‐000527 • VOLEX CH10S3+H03VV‐F+VAC5S 1m Brazil 145‐500011 • lux 0034+H03VV‐F 0.75/3C+0011 1m Israel 145‐000595 • LINETEK LS15+H03VV‐F+LP‐41 1m Israel 145‐000563 • Longwell LP-41+H03VV-F+LS-18 1m Israel 145‐000526...
Page 85
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Region U ID 145‐000594 • LINETEK LP‐30B + SPT‐2 + LS15 1m 145‐000562 • Longwell LP‐30B+SPT‐2 18AWG+LS‐18 1m 145‐000537 • Volex US15S3+SPT‐2 +VAC5S 1m 145‐500002 • lux 0014+SPT‐2 60 18/3C+0016 1m China 145‐000600 • LINETEK PC323+RVV300/300+LS15 1m China 145‐000568 • Longwell LSG‐31+RVV300/300+LS‐18 1m China 145‐000538 • VOLEX GB10S3+RVV 300/500+VAC5S 1m China 145‐500003 • lux 0036+RVV 300/300 0.75/3C+0002 1m India 145‐000592 • LINETEK PE‐361+ H05VV‐F+ LS15 1m India 145‐000560 •...
Page 86
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Region U ID Korea 145‐000590 • LINETEK LS15+H05VV‐F+LP‐E04A 1m Korea 145‐000558 • Longwell LP‐486+KTLH03VV‐F+LS‐5 1m Korea 145‐000533 • VOLEX M2511+KETI IEC+VAC5S 1m Korea 145‐500008 • lux 0033+H03VV‐F 0.75/3C+0011 1m Italy 145‐000591 • LINETEK LS15+H03VV‐F+PE‐336 1m Italy 145‐000559 • Longwell LP‐22+H03VV‐F+LS‐18 1m Italy 145‐000535 • VOLEX IT10S3+HO3VV‐F+VAC5S 1m Italy 145‐500009 •...
Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Notices Lenovo may not offer the products, services, or features discussed in this document in all countries. Consult your local Lenovo representative for information on the products and services currently available in your area. Any reference to a Lenovo product, program, or service is not intended to state or imply that only that Lenovo product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any Lenovo intellectual property right may be used instead. However, it is the user’s responsibility to evaluate and verify the operation of any other product, program, or service. Lenovo may have patents or pending patent applications covering subject matter described in this document. The furnishing of this document does not give you any license to these patents. LENOVO GROUP LTD. PROVIDES THIS PUBLICATION “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF NON‐ INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some jurisdictions do not allow disclaimer of express or implied warranties in certain transactions, therefore, this statement may not apply to you. This information could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the publication. Lenovo may make improvements and/or changes in the product(s) and/or the program(s) described in this publication at any time without notice. The products described in this document are not intended for use in implantation or other life support applications where malfunction may result in injury or death to persons. The information contained in this document does not affect or change Lenovo product specifications or warranties. Nothing in this document shall operate as an express or implied license or indemnity under the intellectual property rights of Lenovo or third parties. All information contained in this document was obtained in specific environments and is presented as an illustration. The result obtained in other operating environments may vary. Lenovo may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you. Any references in this publication to non‐Lenovo Web sites are provided for convenience only and do not in any manner serve as an endorsement of those ...
Lenovo B50-30/B50-30 Touch/B50-45/ B50-70 Hardware Maintenance Manual Any performance data contained herein was determined in a controlled environment. Therefore, the result obtained in other operating environments may vary significantly. Some measurements may have been made on development‐level systems and there is no guarantee that these measurements will be the same on generally available systems. Furthermore, some measurements may have been estimated through extrapolation. Actual results may vary. Users of this document should verify the applicable data for their specific environment. Trademarks The following terms are either registered trademarks or trademarks of Lenovo in the United States and/or other countries: ® Lenovo ® Lenovo logo ® IdeaPad ® VeriFace ® OneKey Rescue (OneKey Recovery, OneKey Antivirus) ® ® Power Express ® Energy Management and ReadyComm The following terms are trademarks of Microsoft Corporation in the United States, other countries, or both: ® Windows ® Windows 7...