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TFT-LCD TV Chassis GBP32ASA GBP37SEN GBP40SEN Model LA32R81WX LA37R81BX LA40R81BX SERVICE Manual TFT-LCD TV Fashion Feature - Luxurious Slim Design - Supreme Picture Quality - Supreme Sound Quality - Supreme Convenience Quality - Convenience for Users...
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Copyright Trademarks ⓒ 2007 by Samsung Electronics Co., Ltd. Samsung is the registered trademark of Samsung Electronics Co., Ltd. All rights reserved. LA32R81WX/LA37R81BX/LA40R81BX This manual may not, in whole or in part, be copied, Service Manual and Macmaster Cable Adapter are photocopied, reproduced, translated, or converted to any trademarks of Samsung Electronics Co., Ltd.
4-2 Checkpoints by Error Mode ……………………………………………………………………………………………………………… 4-2 . Exploded View and Parts List …………………………………………………………………………………………………………………5 5-1 LA32R81WX Exploded View ………………………………………………………………5-1 5-2 LA32R81WX Parts list ……………………………………………………………… 5-2 5-3 LA37R81BX Exploded View ……………………………………………………………… 5-3 5-4 LA37R81BX Parts list ………………………………………………………………… 5-4 5-5 LA40R81BX Exploded View ……………………………………………………………… 5-5 5-6 LA40R81BX Parts list …………………………………………………………………...
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Samsung Electronics Co.,Ltd. - This Service Manual is a property of 416, Maetan-3Dong, Yeongtong-Gu, Suwon City, Samsung Electronics Co., Ltd. Gyeonggi-Do, Korea, 443-742 Any unauthorized use of Manual can be Printed in Korea punished under applicable International P/N : BN82-00196B-00 and/or domestic law.
3 Alignments and Adjustments 3 Alignments and Adjustments 3-1 Service Instruction 1. Usually, a color TV-VCR needs only slight touch-up adjustment upon installation. Check the basic characteristics such as height, horizontal and vertical sync. 2. Use the specified test equipment or its equivalent. 3.
3 Alignments and Adjustments 3-2 How to Access Service Mode 3-2-1 Entering Factory Mode " " Power OFF INFO Power ON MENU MUTE - If you have Factory remote - control PICTURE ON DISPLAY FACTORY - The buttons are active in the service mode. 1.
3 Alignments and Adjustments 3-3 Factory Data 1. Calibration 2. Service 3. White Balance 4. SVP-UX 5. Option Block 6. SGTV5810/NTP3000 7. YC Delay 8. Option Table 9. I2C Check 10. W/B MOVIE 11. Checksum 12. Reset 13. Spread Spectrum T-BDPMPEUD-xxxx (Main Micom Ver) T-BDPMPEUS-xxxx BORD2_CALLA_TR-xxxx (Sub Micom Ver)
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3 Alignments and Adjustments Range Item Hotel Option Hotel Mode ON/OFF Power On Channel 1~99 Power On Volume 1~100 Max Volume 1~100 Local Key Lock ON/OFF Power On Source RF/Ext.1¡¦ Shop Mode ON/OFF Color Space ON/OFF PC Ident ON/OFF Language English/German¡¦...
3 Alignments and Adjustments 3-4 Service Adjustment 3-4-1 White Balance - Calibration If picture color is wrong, do calibration first. Equipment : CA210, Patten : chess pattern Execute calibration in Factory Mode Source AV : PAL composite, Component : 1280*720/60Hz PC : 1024*768/60Hz ( chess patten ) 3-4-2 White Balance - Adjustment...
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3 Alignments and Adjustments 3-4-3 Conditions for Measurement 1. On the basis of toshiba ABL pattern : High Light level (57 IRE) - INPUT SIGNAL GENERATOR : MSPG-925LTH * Mode 2 : 744X484@60 Hz 6 : 1280X720@60 Hz NO 21 : 1024X768@60 Hz * Pattern NO 36 : 16 Color Pattern NO 16 : Toshiba ABL Pattern 2.
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3 Alignments and Adjustments d) Adjust the high light. (Refer to table 1, 2 in adjustment position by mode) - Adjust red gain ('x') and blue gain ('y') to the color coordinates. * Do not adjust the green gain and sub-contrast (Y) data. Picture 4-3 Flat W/B Pattern High light Measurement point...
3 Alignments and Adjustments 3-5 Software Upgrade 3-5-1 How to Update Flash ROM 1. Install the Flash Downloader ConnectSet(Service Jack)and Jig Cable to execute Program Update. 2. Flash Downloader program update -Before Turning on the set,Click "connect"which is under of OSD Screen! -Turn on the Set.
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7 Block Diagrams 7 Block Diagram - This Document can not be used without Samsung’s authorization 7-1 Asia Ready TV Block Diagram (SVP-UX68)
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7 Block Diagrams 7-2 Asia Ready TV Block Diagram (SVP-WX68)
13 Circuit Descriptions 13-3 RF/DTV Tuner (DNOS403MH261B(S)) SPEC. 1. Description 1-1 Receiving System : Designed to cover all bands in VHF and UHF including digital terrestrial(DVB-T) and hyper channels for CCIR system. 1-2 It built in COFDM-Demod IC & Analog Demod IC (PAL B/G, I, D/K, SECAM L/L') 1-3 Receiving Channel : 47MHz ~ 862MHz 1-4 Intermediate Frequency...
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13 Circuit Descriptions 3. General Characteristics 3-1 Temperature Range Storage Temperature : ~ +80 Operation Temperature : ~ +65 3-2 Test conditions : All data hold under following conditions T(amb.) : +25 2 / Humidity : 45 ~ 65 % RH Supply voltage(5V) : +5V Supply voltage(9V)
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13 Circuit Descriptions 4-11 Phase Noise (step frequency 166.67kHz for digital) @ 1kHz : -84dBc/Hz typ. -75dBc/Hz max. @ 10kHz : -90dBc/Hz typ. -80dBc/Hz max. 4-12 Control Data Bus 4-13 Control Data Format : refer 5 section 4-14 Image PAL Interference Protection Ratio : -49dB typ.
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13 Circuit Descriptions short echo : 20.5dB max long echo : 21.5dB max Pin No Delay(us) Relative Attenuation(dB) Pin No Delay(us) Relative Attenuation(dB) 0.05 1.45 short delay parameter long delay parameter 4-22 Performance in Time-Varying Channels - NorDig Unified Test Specification, ver 1.0 (Task 3.25) 4-23 C(N+1) Performance in Single Frequency Networks for more than one echo - NorDig Unified Test Specification, ver 1.0 (Task 3.26) 13-6...
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11 Disassembly and Reassembly 11 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the TFT-LCD WARNING : This monitor contains electrostatically sensitive devices. Use caution when handling these components. 11-1 Disassembly Cautions : 1. Disconnect the monitor from the power source before disassembly. 2.
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11 Disassembly and Reassembly Description Picture Description 2. Lift up the rear cover and remove the stand. 3. Remove Screws from the stand BRKT and lift up the stand BRKT. 11-2...
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11 Disassembly and Reassembly Description Picture Description 4. Lift up the shield and disonnect cables from the boards. 5. Remove screws from the boards and remove screw from theside connector. 11-3...
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11 Disassembly and Reassembly Description Picture Description 6. Remove screws and lift up the BRKT 11-4...
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11 Disassembly and Reassembly 11-2 Reassembly Reassembly procedures are in the reverse order of disassembly procedures. 11-5...
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11 Disassembly and Reassembly Memo 11-6...
6 Electrical Parts List 6 Electrical Parts List You can search for updated part codes through ITSELF web site. URL : http://itself.sec.samsung.co.kr/ 6-1 LA32R81WX Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA LA32R81WX/XHK LA32R81W,N31A/32R80-GBP,32,LCD-TV,HONG K M0216 BN90-01149C ASSY STAND;32R81,SWIVEL,WHITE...
5 Exploded View & Parts List 5 Exploded View and Parts List - You can search for updated part codes through ITSELF web site. URL : http://itself.sec.samsung.co.kr/ 5-1 LA32R81WX Exploded View M0013 M0115 T0447 M0215 T0003 M0027...
10 Operating Instructions and Installation 10 Operating Instructions and Installation 10-1 Front Front Panel buttons Touch the right side of each button to operate. - The product color and shape may vary depending on the model. 1. SOURCE Toggles between all the available input Press to change channels.
10 Operating Instructions and Installation 10-2 Viewing the Connection Panel Power Input - Whenever you connect an external device to your TV, make sure that power on the unit is turned off. - When connecting an externevice, match the colour of the connection terminal to the cable. Connecting External A/V Devices (AV IN 1) - Connect RCA cable to an appropriate external A/V device such as VCR, DVD or Camcorder.
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10 Operating Instructions and Installation Connecting HDMI1 IN, HDMI 3 IN - Supports connections between HDMI-connection-enabled AV devices (Set-Top Boxes, DVD players, AV receivers and digital TVs). - No additional Audio connection is needed for an HDMI to HDMI connection. What is HDMI? - "High Definition Multimedia interface"...
10 Operating Instructions and Installation 10-3 Remote Control 1. Selects a target device to be controlled by the Samsung remote control (TV, DVD, STB, CABLE, VCR) 2. Television Standby button 3. Number buttons for direct channel access 4. One/Two-digit channel selection 5.
For detailed information on installing the wall mount, see the instructions provided with the Wall Mount items. Contact a technician for assistance when installing the wall mounted bracket. Samsung Electronics is not responsible for any damage to the product or injury to yourself or others if you elect to install the TV on your own.
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1 Precautions 1 Precautions Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock. 1-1 Safety Precautions 1-1-1 Warnings For continued safety, do not attempt to modify the circuit board. Disconnect the AC power and DC Power Jack before servicing.
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1 Precautions 1-2 Servicing Precautions WARNING: An electrolytic capacitor installed with the wrong polarity might explode. Caution: Before servicing units covered by this service manual, read and follow the Safety Precautions section of this manual. Note: If unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions, always follow the safety precautions.
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1 Precautions 1-4 Installation Precautions 1. For safety reasons, more than two people are 6. Keep the antenna far away from any high-voltage required for carrying the product. cables and install it firmly. Contact with the high- voltage cable or the antenna falling over may 2.
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SRS TruSurround XT -SRS TruSurround XT provides a virtual Dolby surround system. Convenience -The TV utilizes the HDMI system to implement perfect digital sound and picture quality. The Anynet system enables you to easily control Samsung audio-video (AV) devices from this TV.
14 Reference Infomation 14 Reference Infomation 14-1 Technical Terms - TFT-LCD - Image Lock This means "Fineness adjustment" in LCD (Thin film Transistor Liquid Crystal Display) Monitor, the features are "Fine" and "Coarse" ADC(Analog to Digital Converter) This is a circuit that converts from analog signal to digital signals.
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14 Reference Infomation The number of horizontal and vertical dots used to compose the screen image is called 'resolution'. - Dot Pitch This number shows the accuracy of the display. The image on a monitor is composed of red, green High resolution is good for performing multiple and blue dots.
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- Channel Fine Tuning This feature allows the viewer to fine-tune the TV channel to obtain the best viewing conditions. The Samsung LCD TV has both automatic and manual channel fine-tuning features to enable the viewer to adjust their desired settings.
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14 Reference Infomation 14-2-2 Component 14-2-3 S-Video Separate RCA Green Pb (Cb) RCA Blue Pr (Cr) RCA Red Audio L 14-2-5 D-SUB RCA White Separate Audio R RCA Red Green Blue 14-2-4 A/V GND Red GND Green GND Blue RCA Yellow CVBS DDC Input power(+5V) Audio L...
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14 Reference Infomation 14-2-7 Scart 1 Signal Signal Audio output R Audio input R Video GND (RGB red) Audio output L Audio common GND RGB red input Video GND (RGB blue) Fast Blanking signal (RGB switching) Audio input L Video output GND RGB blue input Video input GND Switching voltage...
14 Reference Infomation 14-3 Timing Chart This section of the service manual describes the timing that the computer industry recognizes as standard for computer- generated video signals. 14-3-1 LCD Panel Mode1 mode 14-7...
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4 Troubleshooting 4 Troubleshooting 4-1 First Checklist for Troubleshooting 1. Check the various cable connections first. - Check to see if there is a burnt or damaged cable. - Check to see if there is a disconnected cable connection or a connection is too loose. - Check to see if the cables are connected according to the connection diagram.
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4 Troubleshooting 4-2 Checkpoints by Error Mode 4-2-1 No Power LAMP off, power indicator Check a connection a power cable. LED red color? Does proper DC 13V Change a Assy PCB Power. appear at JP845? Does proper DC A3.3V, Check a IC1112, Q1103. A5V appear at Change a main PCB ass'y.
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Change a main PCB ass'y. of IC2001? Does the digital data appear Check a IC2001 at the output of Change a main PCB ass'y. LVDS (RA2008~2013)? Check a LVDS cable? Please, Call to Samsung Co. LTD. Replace a lcd panel?
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4 Troubleshooting WAVEFORMS R,G,B Output Signal of IC2001...
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Check a a IC1405 R1333_UX~R1340_UX? Change a main PCB ass'y. Does the digital data Check a IC1405 appear at output of IC4001 Change a main PCB ass'y. LVDS(RA2008~2013)? Check a LVDS cable? Please, Call to Samsung Co. LTD. Replace lcd panel?
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4 Troubleshooting Digital Output Data of IC4001 Signal of HDMI(Data)
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Does the signal appear at Change a main PCB ass'y. C2085 of IC2001? Does the digital data appear at Check a IC4001. output of RA2008~2013? Change a main PCB ass'y. Check a LVDS cable? Please, Call to Samsung Co. LTD. Replacea lcd panel?
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Dose the signal appear at Check a connection harness. C2101 of IC2001? Does the signal appear at Check a IC 2001. Out of IC2001 Change a main PCB ass'y RA2008~RA2013? Check a LVDS cable? Please, Call to Samsung Co. LTD. Replace lcd panel?
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4 Troubleshooting WAVEFORMS CVBS Output Signal 4-10...
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Check a connection harness. C2088, C2091 of IC2001? Does the digital data appear Check a IC 2001. at Output of IC 2001, Change a main PCB ass'y. RA2008~RA2013? Check a LVDS cable? Please, Call to Samsung Co. LTD. Replacea lcd panel? 4-11...
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4 Troubleshooting WAVEFORMS Digital Output Data of IC2001 Analog Signal(Y,C) to IC2001 4-12...
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4 Troubleshooting 4-2-7 No Sound Connect a sound cable. Picture is display, no sound. control a volume. Does the signal appear at Check a connection harness and Pin #10, #12, #13, #9 (I2S_CLK, headphone jack./Side AV I2S_SCLK, I2S_LRCLK, Check Sound Processor I2S_DATA) of IC1202? IC1202 (SGTV5810) Check the DC 12V...
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4 Troubleshooting WAVEFORMS The Signal are Inputed to IC1202 The Signal are Inputed to IC1203 4-14...
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8 Wiring Diagrams 8-2 Main Board Layout CN2201_LCD CN3001_TEST 10PIN CN3001_TEST TEST1801_TEST Panel control STx5105 DTV Main Micom Decoder MICOM SVP_UX68 BLOCK TUNER BLOCK CN1606 10PIN CN1203 4PIN FUNCTION & CONTROL SPEAKER JACK...
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8 Wiring Diagrams 8-3 PIN characteristic CN1101 - Main Board power supply NAME Main_PWR_CTRL Sound_AMP Sound_AMP B12VS B12VS B13V B13V B13V Function Define - 13V B5V_VCCA, B5V_VCCB, IC611 POWER SUPPERLY - 5V B5V, B3.3V, B2.5V_VDD, B3.3VD, VCC50 - 12VS B12VS CN1203 - SPEAKER CONNECTOR NAME R+_OUT...
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8 Wiring Diagrams CN1606 - Front control NAME A5V_1 LED_STB BUZZER KEY_INPUT1 KEY_INPUT2 LED_CTRL Function Define - A5V Front control board poewr supply - KEY INPUT1,2 Key control, from the memu, change up/down Etc. - IR Remote control signal - LED_CTRL Control the timing and stand by LED color CN2201_LCD - Panel control SW_inverter...
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8 Wiring Diagrams CN2202-HD LVDS SIGNAL NAME NAME RxIN0- RxIN0+ RxIN1- RxIN1+ RxIN2- RxIN2+ LVDS Opt RxINCLK- DCC Opt RxINCLK+ RxIN3- RxIN3+...
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8 Wiring Diagrams 8-4 Connector Location and PCB outline figure CNI802 14PIN CNI803 14PIN CNM801 24PIN AC INPUT CN801 ¡Ø NOTICE - Component Location: Within 5mm from guide line - Pattern : drawn within 2mm from guide line...