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Samsung UE32D55 R Series Service Manual
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Samsung UE32D55 R Series Service Manual

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SERVICE
TFT-LED TV
UE**D55****
LED-TV
Chassis : U66A
Model
: UE32D55**R*
UE37D55**R*
UE40D55**R*
UE46D55**R*
UE32D57**RS
UE37D57**RS
UE40D57**RS
UE46D57**RS
1. Precautions
2. Product specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. Wiring Diagram
Chassis : U57A
Model
: UE32D50**PW
UE37D50**PW
UE40D50**PW
UE46D50**PW
UE32D40**NW
Chassis : U57B
Model
: UE19D40**NW
UE22D50**NW
UE27D50**NW
Manual
Contents

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Summary of Contents for Samsung UE32D55 R Series

  • Page 1 LED-TV Chassis : U66A Chassis : U57A Model : UE32D55**R* Model : UE32D50**PW UE37D55**R* UE37D50**PW UE40D55**R* UE40D50**PW UE46D55**R* UE46D50**PW UE32D57**RS UE32D40**NW UE37D57**RS Chassis : U57B UE40D57**RS Model : UE19D40**NW UE46D57**RS UE22D50**NW UE27D50**NW SERVICE Manual TFT-LED TV Contents 1. Precautions 2. Product specifications 3.

  • Page 2: Table Of Contents

    Contents 1. Precautions ......................1-1 1-1. Safety Precautions ......................1-1 1-2. Servicing Precautions ..................... 1-2 1-3. Electrostatically Sensitive Devices (ESD) Precautions ..........1-2 1-4. Installation Precautions ....................1-3 2. Product specifications .................... 2-1 2-1. Feature & Specifications ....................2-1 2-2. Detail Factory Option ...................... 2-9 2-3.

  • Page 3: Precautions

    1. Precautions 1. Precautions 1-1. Safety Precautions Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock. 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.

  • Page 4: Servicing Precautions

    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.

  • Page 5: Installation Precautions

    1. Precautions 1-4. Installation Precautions For safety reasons, more than a people are required for carrying the product. Keep the power cord away from any heat emitting devices, as a melted covering may cause fire or electric shock. Do not place the product in areas with poor ventilation such as a bookshelf or closet. The increased internal temperature may cause fire.

  • Page 6: Product Specifications

    2. Product specifications 2. Product specifications 2-1. Feature & Specifications Model UE32D50** / UE32D55** / UE32D57** Feature DTV/ATV (5700 : Satellite), 4-HDMI, 1-Component, 1-A/V, D-SUB, 1-SCART, 2-USB2.0 ሪ Brightness : 300 cd/m ሪ High Contrast Ratio : 6,000:1 ሪ Response Time : 6.5ms ሪ...
  • Page 7 2. Product specifications Model UE37D50** / UE37D55** / UE37D57** Feature DTV/ATV (5700 : Satellite), 4-HDMI, 1-Component, 1-A/V, D-SUB, 1-SCART, 2-USB2.0 ሪ Brightness : 300 cd/m ሪ High Contrast Ratio : 6,000:1 ሪ Response Time : 9 ms ሪ Specifications Item Description LCD Panel 37inch FHD...
  • Page 8 2. Product specifications Model UE40D50** / UE40D55** / UE40D57** Feature DTV/ATV (5700 : Satellite), 4-HDMI, 1-Component, 1-A/V, D-SUB, 1-SCART, 2-USB2.0 ሪ Brightness : 300 cd/m ሪ High Contrast Ratio : 6,000:1 ሪ Response Time : 9 ms ሪ Specifications Item Description LCD Panel 40inch FHD...
  • Page 9 2. Product specifications Model UE46D50** / UE46D55** / UE46D57** Feature DTV/ATV (5700 : Satellite), 4-HDMI, 1-Component, 1-A/V, D-SUB, 1-SCART, 2-USB2.0 ሪ Brightness : 300 cd/m ሪ High Contrast Ratio : 6,000:1 ሪ Response Time : 5.5 ms ሪ Specifications Item Description LCD Panel 46 inch FHD...
  • Page 10 2. Product specifications Model UE19D40** Feature DTV/ATV, 2-HDMI, 1-Component, 1-A/V, D-SUB, 1-SCART, 2-USB2.0, CI Slot ሪ Brightness : 250 cd/m ሪ High Contrast Ratio : 1,000:1 ሪ Response Time : 5 ms ሪ Specifications Item Description LCD Panel 19 inch HD Scanning Frequency Horizontal : 37.13 kHz ~ 59.25 kHz (Automatic) Vertical : 47 Hz ~ 75 Hz (Automatic)
  • Page 11 2. Product specifications Model UE32D40** Feature DTV/ATV, 4-HDMI, 1-Component, 1-A/V, D-SUB, 1-SCART, 1-USB2.0 ሪ Brightness : 450 cd/m ሪ High Contrast Ratio : 3,500:1 ሪ Response Time : 8.5 ms ሪ Specifications Item Description LCD Panel 32 inch HD Scanning Frequency Horizontal : 37 kHz ~ 59.25 kHz (Automatic) Vertical : 47 Hz ~ 75 Hz (Automatic) Display Colors...
  • Page 12 2. Product specifications Model UE22D50** Feature DTV/ATV, 1-HDMI, 1-Component, 1-A/V, D-SUB, 1-SCART, 1-USB2.0 ሪ Brightness : 250 cd/m ሪ High Contrast Ratio : 1,000:1 ሪ Response Time : 5 ms ሪ Specifications Item Description LCD Panel 22 inch FHD Scanning Frequency Horizontal : 60 kHz ~ 73 kHz (Automatic) Vertical : 50 Hz ~ 75 Hz (Automatic) Display Colors...
  • Page 13 2. Product specifications Model UE27D50** Feature DTV/ATV, 2-HDMI, 1-Component, 1-A/V, D-SUB, 1-SCART, 1-USB2.0 ሪ Brightness : 450 cd/m ሪ High Contrast Ratio : 3,000:1 ሪ Response Time : 6.5 ms ሪ Specifications Item Description LCD Panel 27inch FHD Scanning Frequency Horizontal : 54.2 kHz ~ 83.8 kHz (Automatic) Vertical : 49 Hz ~ 75 Hz (Automatic) Display Colors...

  • Page 14: Detail Factory Option

    2. Product specifications 2-2. Detail Factory Option If you replace the main board with new one, please change the factory option as well. ※ The options you must change are "Type" and "Front Color". 2-2-1. UD5XXX Model Name UE32D50**PW UE37D50**PW UE40D50**PW UE46D50**PW CHILIN(CMI)
  • Page 15 2. Product specifications If you replace the main board with new one, please change the factory option as well. ※ The options you must change are "Type" and "Front Color". 2-2-3. UD57XX Model Name UE32D57**RS UE37D57**RS UE40D57**RS UE46D57**RS CHILIN(CMI) CHILIN(CMI) Vendor CHILIN(AUO) CHILIN(CMI)

  • Page 16: Accessories

    27" : BN90-03282C 19" : BN90-03280B 4000 32" : BN90-03283C 6003-001782 (G/STAND+C/STAND) 5000/5500/5700 6001-002621 (G/STAND+B/S/LINK) Samsung Electronics Service center Screw 5000_small 22"/27" : 6003-001782 6001-002621 : M4 x L8 6003-001782 : M4 x L12 19" : 6003-001782 32" : 6003-001782...

  • Page 17: New Features Explanation

    TOOLST „ Anynet+ is a function that enables you to control all connected Samsung devices that support Anynet+ with your Samsung TV’s remote. The Anynet+ system can be used only with Samsung devices that have the Anynet+ feature. To be sure your Samsung device has this feature, check if there is an Anynet+ logo on it.
  • Page 18 Make sure to switch to an Anynet+ device by using the Device List. Recording „ You can make a recording of a TV Programme using a Samsung recorder. Select Recording. N When there are more than two recording devices When multiple recording devices are connected, the recording devices are listed.
  • Page 19 2. Product specifications Troubleshooting for Anynet+ „ Problem Possible Solution • Check if the device is an Anynet+ device. The Anynet+ system supports Anynet+ devices only. • Only one receiver (home theatre) can be connected. Anynet+ does not work. • Check if the Anynet+ device power cord is properly connected.
  • Page 20 • Before connecting your device to the TV, please back up your files to prevent them from damage or loss of data. SAMSUNG is not responsible for any data file damage or data loss. • USB (HDD) is not supported.
  • Page 21 TV and the PC IP addresses should be the same and only the last part (the host address) should be changed. (e.g. IP Address: 123.456.789.**) Using a LAN cable, connect between the external modem and the PC onto which the Samsung PC Share Manager programme will be installed.
  • Page 22 2. Product specifications Screen Display „ for LED 5000 series Move to the desired file using the ◄/►/▲/▼ buttons and then press the ENTERE or � (Play) button. The file is played. My Contents screen may differ depending on the way to enter the screen. Information: You can ascertain the selected device name,...
  • Page 23 2. Product specifications ● Videos Playing Video Press the ◄/►/▲/▼ button to select the desired video in the file list. Press the ENTERE button or � (Play) button. – The selected file name is displayed on the top with its playing time.
  • Page 24 2. Product specifications Other Restrictions N NOTE • If there are problems with the contents of a codec, the codec will not be supported. • If the information for a Container is incorrect and the file is in error, the Container will not be able to play correctly. •...
  • Page 25 2. Product specifications ● Music Playing Music Press the ◄/►/▲/▼ button to select the desired Music in the file list. Press the ENTERE button or � (Play) button. – You can use � (REW) μ (FF) buttons during playback. N Only displays the files with MP3 and PCM file extension. Other file extensions are not displayed, even if they are saved on the same USB device.
  • Page 26 2. Product specifications ● Photos Viewing a Photo (or Slide Show) Press the ◄/►/▲/▼ button to select the desired Music in the file list. Press the ENTERE button or � (Play) button. – When a selected photo is displayed, press the ENTERE button to start the slide show.
  • Page 27 2. Product specifications My Contents - Additional Functions „ Videos/Music/Photos Play Option menu During playing a file, press the TOOLS button. Category Operation Videos Music Photos Title You can move the other file directly. You can search the video using l and r button at one minute interval Time Search or entering the number directly.
  • Page 28 2. Product specifications 2-4-2. Media Contents for LED 5500 series Using the Media Contents „ Enjoy photos, music and/or movie files saved on a USB Mass Storage Class (MSC) device. Press the SMART HUB button. Press button to select desired menu (Videos, Photos, Music), then press the...
  • Page 29 TV and the PC IP addresses should be the same and only the last part (the host address) should be changed. (e.g. IP Address: 123.456.789.**) Using a LAN cable, connect between the external modem and the PC onto which the Samsung PC Share Manager programme will be installed.
  • Page 30 Screen Display 2. Product specifications Move to the file you desired using the up/down/right/left buttons and then press the Screen Display ENTERE or � (Play) button. The file is played. Move to the file you desired using the up/down/right/left buttons and then press the ENTERE or � (Play) button. The file is played.
  • Page 31 2. Product specifications ● Videos Playing Video Press the ◄/►/▲/▼ button to select the desired file in the file list. Press the ENTERE button or � (Play) button. – The selected file name is displayed on the top with its playing time.
  • Page 32 2. Product specifications Other Restrictions N NOTE • If there are problems with the contents of a codec, the codec will not be supported. • If the information for a Container is incorrect and the file is in error, the Container will not be able to play correctly. •...
  • Page 33 2. Product specifications ● Music Playing Music Press the ◄/►/▲/▼ button to select the desired music file in the file list. Press the ENTERE button or � (Play) button. – During playing the music, you can search using the � (FF) μ...
  • Page 34 2. Product specifications ● Photos Viewing a Photo (or Slide Show) Press the ◄/►/▲/▼ button to select the desired file in the file list. Press the ENTERE button. – When you press the � (Play) button in the file list, slide show will be started immediately.
  • Page 35 2. Product specifications Media Contents - Additional Functions „ Sorting the file list To sort files in the file list, select the Sorting by using the button. And then press the ENTERE button. Category Operation Videos Music Photos Displays the whole folder. You can view the file name and thumbnail by Folder View selecting the folder.
  • Page 36 2. Product specifications 2-4-3. e-Manual How to view the e-Manual „ 2-31...
  • Page 37 2. Product specifications 2-32...
  • Page 38 ✎ For more information, visit “www.samsung.com” or contact the Samsung call centre. Mobile devices may Using the Message Function need additional software installation. For details, refer to Using this function, you view call arrivals, SMS messages each device's user’s guide.
  • Page 39 You can also change the setting (or resetting) of this feature at “AllShare Setup”. Using your Samsung phone to control your TV Simply Warning: Please note that if your device is connected to unsecured or unfamiliar network, unwanted or inappropriate contents might be played.
  • Page 40 Application service: You can Samsung Apps experience various service by provided samsung. Recommended Recommended Applications: Displays the recommended service by Samsung. You are not able to add ordelete a TV Screen: Displays the service in this list. Favourites Channel Videos...
  • Page 41 Account created. You can use the services provided by all users of your Samsung TV with a single login by linking the users’ account to the TV ID. If you want to register a service site ID, select Yes. Service Site list will appear on the screen.
  • Page 42 Detail: Display information about Smart Hub. Check the speed of your internet connection: Test the speed of connection to the Samsung’s server. Each application can be delayed depending on service provider. Terms of Service Agreement: Display the Terms of Service Agreement.
  • Page 43 Includes other miscellaneous services. • My Account: Displays the application list and your cyber cash balance. Starting in the middle of 2010 (US and Korea only), you can purchase cybercash for buying applications through tv.samsung.com. • Help: If you have questions about Smart Hub, check this section first.

  • Page 44: Disassembly And Reassembly

    3. Disassembly and Reassembly 3. Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the LED TV. WARNING: This LED TV contains electrostatically sensitive devices. Use caution when handling these components. 3-1. Disassembly and Reassembly Cautions: 1.
  • Page 45 3. Disassembly and Reassembly Description Picture Description Screws Remove the left and right speaker. Remove the 6 screws of Main Board. Remove the 5 screws of SMPS Board. 6001-002653 (Machine) Remove the 6 screws of Bracket Stand Link & Guide. (Machine type : 4 EA) 6001-002653 (Machine) 6003-001782...
  • Page 46 3. Disassembly and Reassembly Screw Size Code No. A (mm) B (mm) C (mm) 6001-002621 8.0 ± 0.2 7.7 ± 0.3 3.83 ~ 3.98 6003-001782 8.2 ± 0.4 11.7 ± 0.3 3.81 ~ 3.91 6001-002671 7.3 ± 0.2 3.00 ± 0.02 5.7 ~ 6.0 6001-002653 7.3 ±...
  • Page 47 3. Disassembly and Reassembly UD5000(22", 27") / UD4000(19") „ Description Picture Description Screws Place the TV face down on cushioned table. Remove 4 screws from the Stand. • 19", 22" : Remove 2 screws. • 27" : Remove 3 screws. Remove Stand.
  • Page 48 3. Disassembly and Reassembly Description Picture Description Screws Remove the 4 screws of Main Board. Remove the 3 screws of SMPS Board. 6003-000115 Remove the Stand Link. Lift up the Panel. Reassembly procedures are in the reverse order of disassembly procedures. ※...
  • Page 49 3. Disassembly and Reassembly How to replace the function Board „ Description Picture Description Refer Remove the locking clip. Heat the function Board and Remove the function Board. Place the new function Board. FUNCTION Board (BN96-16729*) Locking the clip. Bracket-Support, PCB (BN61-07248A)

  • Page 50: Troubleshooting

    4. Troubleshooting 4. Troubleshooting 4-1. Troubleshooting 4-1-1. Previous check Check the various cable connections first. • Check to see if any cables are damaged or burnt. • Check to see if there is a disconnected or loose cable connection. • Check to see if the cables are connected according to the connection diagram. Check the power input to the Main Board.
  • Page 51 4. Troubleshooting 4-1-2. X6 : UD55XX, 57XX(32", 37", 40", 46") No Power „ The LEDs on the front panel do not work when connecting the power cord. Symptom The SMPS relay does not work when connecting the power cord. The units appears to be dead. The IP relay or the LEDs on the front panel does not work when connecting the power cord if the cables are improperly connected or the Main Board or SMPS is not functioning.
  • Page 52 4. Troubleshooting Main Board_Bottom TCON_Top Pin #1~5 40" TCON...
  • Page 53 4. Troubleshooting No Video (Analog PC signal) „ Symptom Audio is normal but no picture is displayed on the screen. Check the PC source Major Check the Arsenal, Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 54 4. Troubleshooting Main Board_Top Main Board_Bottom...
  • Page 55 4. Troubleshooting WAVEFORMS „ PC input (V-sink , H-sink , R/G/B) LVDS output...
  • Page 56 4. Troubleshooting No video (HDMI 1, 2, 3, 4 - Digital signal) „ Symptom Audio is normal but no picture is displayed on the screen. Check the HDMI source. Major Check the HDMI switch, Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 57 4. Troubleshooting Main Board_Top Main Board_Bottom...
  • Page 58 4. Troubleshooting WAVEFORMS „ HDMI input (RX_Data, RX_Clk) LVDS output...
  • Page 59 4. Troubleshooting No Video (Tuner_CVBS) „ Symptom Audio is normal but no picture is displayed on the screen. Check the Tuner CVBS source. Major Check the Tuner, Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 60 4. Troubleshooting Main Board_Top Main Board_Bottom 4-11...
  • Page 61 4. Troubleshooting WAVEFORMS „ LVDS output 4-12...
  • Page 62 4. Troubleshooting No Video (Tuner DTV) „ Symptom Audio is normal but no picture is displayed on the screen. Check the DTV source. Major Check the Tuner, Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 63 4. Troubleshooting Main Board_Top Main Board_Bottom 4-14...
  • Page 64 4. Troubleshooting WAVEFORMS „ LVDS output 4-15...
  • Page 65 4. Troubleshooting No Video (Video CVBS) „ Symptom Audio is normal but no picture is displayed on the screen. Check the Video CVBS source Major Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 66 4. Troubleshooting Main Board_Top Main Board_Bottom 4-17...
  • Page 67 4. Troubleshooting WAVEFORMS „ CVBS OUT (Grey Bar) LVDS output 4-18...
  • Page 68 4. Troubleshooting No Video (Component) „ Symptom Audio is normal but no picture is displayed on the screen. Check the Component source Major Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 69 4. Troubleshooting Main Board_Top Main Board_Bottom 4-20...
  • Page 70 4. Troubleshooting WAVEFORMS „ Compnent_Y (Gray scale) / Pb / Pr (Color bar) LVDS output 4-21...
  • Page 71 4. Troubleshooting No Sound „ Symptom Video is normal but there is no sound.. When the speaker connectors are disconnected or damaged. Major When the sound processing part of the Main Board is not functioning. checkpoints Speaker defect. Check the source and check the connection of sound cable Input the sound source properly.
  • Page 72 4. Troubleshooting Main Board_Top Main Board_Bottom 4-23...
  • Page 73 4. Troubleshooting WAVEFORMS „ Speaker out 4-24...
  • Page 74 4. Troubleshooting 4-1-3. X5 : UD50XX(32", 37", 40", 46")_UD40XX(32") No Power „ The LEDs on the front panel do not work when connecting the power cord. Symptom The SMPS relay does not work when connecting the power cord. The units appears to be dead. The IP relay or the LEDs on the front panel does not work when connecting the power cord if the cables are improperly connected or the Main Board or SMPS is not functioning.
  • Page 75 4. Troubleshooting Main Board_Bottom TCON_Top Pin #1~5 40" TCON 4-26...
  • Page 76 4. Troubleshooting No Video (Analog PC signal) „ Symptom Audio is normal but no picture is displayed on the screen. Check the PC source Major Check the Arsenal, Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 77 4. Troubleshooting Main Board_Top Main Board_Bottom 4-28...
  • Page 78 4. Troubleshooting WAVEFORMS „ PC input (V-sink , H-sink , R/G/B) LVDS output 4-29...
  • Page 79 4. Troubleshooting No video (HDMI 1, 2, 3, 4 - Digital signal) „ Symptom Audio is normal but no picture is displayed on the screen. Check the HDMI source. Major Check the HDMI switch, Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 80 4. Troubleshooting Main Board_Top Main Board_Bottom 4-31...
  • Page 81 4. Troubleshooting WAVEFORMS „ HDMI input (RX_Data, RX_Clk) LVDS output 4-32...
  • Page 82 4. Troubleshooting No Video (Tuner_CVBS) „ Symptom Audio is normal but no picture is displayed on the screen. Check the Tuner CVBS source. Major Check the Tuner, Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 83 4. Troubleshooting Main Board_Top Main Board_Bottom 4-34...
  • Page 84 4. Troubleshooting WAVEFORMS „ LVDS output 4-35...
  • Page 85 4. Troubleshooting No Video (Tuner DTV) „ Symptom Audio is normal but no picture is displayed on the screen. Check the DTV source. Major Check the Tuner, Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 86 4. Troubleshooting Main Board_Top Main Board_Bottom 4-37...
  • Page 87 4. Troubleshooting WAVEFORMS „ LVDS output 4-38...
  • Page 88 4. Troubleshooting No Video (Video CVBS) „ Symptom Audio is normal but no picture is displayed on the screen. Check the Video CVBS source Major Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 89 4. Troubleshooting Main Board_Top Main Board_Bottom 4-40...
  • Page 90 4. Troubleshooting WAVEFORMS „ CVBS OUT (Grey Bar) LVDS output 4-41...
  • Page 91 4. Troubleshooting No Video (Component) „ Symptom Audio is normal but no picture is displayed on the screen. Check the Component source Major Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 92 4. Troubleshooting Main Board_Top Main Board_Bottom 4-43...
  • Page 93 4. Troubleshooting WAVEFORMS „ Compnent_Y (Gray scale) / Pb / Pr (Color bar) LVDS output 4-44...
  • Page 94 4. Troubleshooting No Sound „ Symptom Video is normal but there is no sound.. When the speaker connectors are disconnected or damaged. Major When the sound processing part of the Main Board is not functioning. checkpoints Speaker defect. Check the source and check the connection of sound cable Input the sound source properly.
  • Page 95 4. Troubleshooting Main Board_Top Main Board_Bottom 4-46...
  • Page 96 4. Troubleshooting WAVEFORMS „ Speaker out 4-47...
  • Page 97 4. Troubleshooting 4-1-4. X5_SMALL : UD50XX (22", 27")_UD40XX (19") No Power „ The LEDs on the front panel do not work when connecting the power cord. Symptom The SMPS relay does not work when connecting the power cord. The units appears to be dead. The IP relay or the LEDs on the front panel does not work when connecting the power cord if the cables are improperly connected or the Main Board or SMPS is not functioning.
  • Page 98 4. Troubleshooting Main Board_Bottom Panel LVDS Connector Pin #1~5 22" Panel 4-49...
  • Page 99 4. Troubleshooting No Video (Analog PC signal) „ Symptom Audio is normal but no picture is displayed on the screen. Check the PC source Major Check the Arsenal, Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 100 4. Troubleshooting Main Board_Top Main Board_Bottom 4-51...
  • Page 101 4. Troubleshooting WAVEFORMS „ PC input (V-sink , H-sink , R/G/B) LVDS output 4-52...
  • Page 102 4. Troubleshooting No video (HDMI 1, 2, 3, 4 - Digital signal) „ Symptom Audio is normal but no picture is displayed on the screen. Check the HDMI source. Major Check the HDMI switch, Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 103 4. Troubleshooting Main Board_Top Main Board_Bottom 4-54...
  • Page 104 4. Troubleshooting WAVEFORMS „ HDMI input (RX_Data, RX_Clk) LVDS output 4-55...
  • Page 105 4. Troubleshooting No Video (Tuner_CVBS) „ Symptom Audio is normal but no picture is displayed on the screen. Check the Tuner CVBS source. Major Check the Tuner, Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 106 4. Troubleshooting Main Board_Top Main Board_Bottom 4-57...
  • Page 107 4. Troubleshooting WAVEFORMS „ LVDS output 4-58...
  • Page 108 4. Troubleshooting No Video (Tuner DTV) „ Symptom Audio is normal but no picture is displayed on the screen. Check the DTV source. Major Check the Tuner, Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 109 4. Troubleshooting Main Board_Top Main Board_Bottom 4-60...
  • Page 110 4. Troubleshooting WAVEFORMS „ LVDS output 4-61...
  • Page 111 4. Troubleshooting No Video (Video CVBS) „ Symptom Audio is normal but no picture is displayed on the screen. Check the Video CVBS source Major Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 112 4. Troubleshooting Main Board_Bottom Main Board_Bottom 4-63...
  • Page 113 4. Troubleshooting WAVEFORMS „ CVBS OUT (Grey Bar) LVDS output 4-64...
  • Page 114 4. Troubleshooting No Video (Component) „ Symptom Audio is normal but no picture is displayed on the screen. Check the Component source Major Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 115 4. Troubleshooting Main Board_Bottom Main Board_Bottom 4-66...
  • Page 116 4. Troubleshooting WAVEFORMS „ Compnent_Y (Gray scale) / Pb / Pr (Color bar) LVDS output 4-67...
  • Page 117 4. Troubleshooting No Sound „ Symptom Video is normal but there is no sound.. When the speaker connectors are disconnected or damaged. Major When the sound processing part of the Main Board is not functioning. checkpoints Speaker defect. Check the source and check the connection of sound cable Input the sound source properly.
  • Page 118 4. Troubleshooting Main Board_Top Main Board_Bottom 4-69...
  • Page 119 4. Troubleshooting WAVEFORMS „ Speaker out 4-70...

  • Page 120: Alignments And Adjustments

    4. Troubleshooting 4-2. Alignments and Adjustments 4-2-1. General Alignment Instuction Usually, a color LED TV needs only slight touch-up adjustment upon installation. Check the basic characteristics such as height, horizontal and vertical sync. Use the specified test equipment or its equivalent. Correct impedance matching is essential.

  • Page 121: Factory Mode Adjustments

    4. Troubleshooting 4-3. Factory Mode Adjustments 4-3-1. Entering Factory Mode To enter ‘Service Mode’ Press the remote -control keys in this sequence : - If you do not have Factory remote - control Power OFF INFO MENU MUTE 4-3-2. How to Access Service Mode Using the Customer Remote Turn the power off and set to stand-by mode.
  • Page 122 4. Troubleshooting 4-3-3. Factory Data Option Factory Name Data Range Factory Reset 19A6TH0C/19I6TH0C/22D6TF0C/22I6TF0C /26A6AH0C/26D6AH0C/26L6AH0C/32A6AF0C Select Panel Type /32A6AH0C/32D6AF0C/32L6AH0C/37L6AF0C  : inch /40A6AF0C/40D6AF0C/40L6AF0C/46A6AF0C  : vendor /46D6AF0C/19A6TH0E/19L6TH0E/22D6TF0E  : refresh Type /22L6TF0E/23A6TF0E/24L6TF0E/27A6TF0E  : POL /32A6AH0E/32A6UF0E/32P6AH0E/32P6UF0E  : resolution /32L6UF0E/32L6AH0E/37P6UF0E/40A6UF0E  : multi /40P6UF0E/40H6UF0E/46A6UF0E/46P6UF0E ...
  • Page 123 4. Troubleshooting Control Factory menu Name EDID Sub Option Shop Option Sound Factory Name Data Range EDID EDID ON/OFF EDID WRITE ALL … Download EDID data to EEPROM. EDID WRITE PC … 1. Set "ON" of EDID ON/OFF EDID WRITE HDMI …...
  • Page 124 4. Troubleshooting LD400 : 72 LD45*/LD48*/LD5** : 36 KEY SENSITIVITY 0~255 UD40** : 38 UD50** : 41 UD55**/UD57** :36 TA350 : 32 TA550 : 34 Local Set WiFi EU_Italy EU_Germany EU_France EU_Benelux EU_UK EU_Armenia NORDIG AD_Au AD_NZ AD_Singapol CIS_Rusia CIS_Ukraina CIS_Kazakhstan EU_Turkey EU_Africa...
  • Page 125 4. Troubleshooting Hotel Option Hotel Hospitality Shop Option Shop Mode ON/OFF Exhibition Mode ON/OFF Sound High Devi ON/OFF Carrier_Mute ON/OFF Speaker Delay Normal 0~255 Audio delay for Lipsync Control for ATV sound of stereo Pilot Level High Thld 0x28h 0x00~0xff /multiplex Control for ATV sound of stereo Pilot Level Low Thld...
  • Page 126 4. Troubleshooting LNA Status Not modified Not modified Modulation Not modified Code Rate Not modified Not modified Hier Modulation Not modified Frequency Offset Not modified Timing Offset Not modified Not modified Not modified PLL Type Not modified DEMOD Type Not modified TPS LOCK Not modified RS Lock...
  • Page 127 4. Troubleshooting ADC WB Factory Menu Name ADC Target ADC RESULT Factory Name Data Range AV Calibration Success Success / Failure Comp Calibration Success Success / Failure PC Calibration Success Success / Failure HDMI Calibration Success Success / Failure ADC Target 1st_AV_Low 0 ~1020 1st_AV_High...
  • Page 128 4. Troubleshooting 2nd_R_H 0 ~ 255 2nd_G_H 0 ~ 255 2nd_B_H 0 ~ 255 Mode Sub Brightness 0 ~ 255 R_Offset 0 ~ 255 G_Offset 0 ~ 255 B_Offset 0 ~ 255 Sub Contrast 0 ~ 255 R_Gain 0 ~ 255 G_Gain 0 ~ 255 B_Gain...

  • Page 129: White Balance -Calibration

    4. Troubleshooting 4-4. White Balance - Calibration 4-4-1. White Balance -Calibration 1. Calibration AV Calibration Comp Calibration PC Calibration HDMI Calibration 4-4-2. White Balance - Adjustment (low light) (hight light) Sub Bright Sub Contrast 3. W/B R offset R gain G offset G gain B offset...

  • Page 130: White Ratio (Balance) Adjustment

    4. Troubleshooting 4-5. White Ratio (Balance) Adjustment You can adjust the white ratio in factory mode (1:Calibration, 3:White-Balance). Since the adjustment value and the data value vary depending on the input source, you have to adjust these in CVBS, Component 1 and HDMI 1 modes. The optimal values for each mode are configured by default.

  • Page 131: Servicing Information

    4-6. Servicing Information 4-6-1. USB Download Method (Main SW & e-Manual) Samsung may offer upgrades for TV’s firmware in the future. Upgrades will be possible by connecting a USB drive to the USB port located on your TV. Insert a USB drive containing the firmware ( T-MST4DEUC / T-MST5DEUC) upgrade into the USB port on the rear of the TV.

  • Page 132: How To Upgrade Sub Micom

    4. Troubleshooting 4-7. How To Upgrade Sub Micom 4-7-1. Sub S/W (with DDC Manager) Order Description Connect DDC MANAGER to the TV Set with D-SUB cable. And Power on. (USB type : MTI-2510 / parallel type : MTI-2059) Open the DDC tool. (Parallel type &...
  • Page 133 4. Troubleshooting Order Description Push the 'Auto Program' Button. (It takes about 15 seconds.) If update completes, TV set will booting automatically. Disconnect the JIG. 4-7-2. Sub S/W (in Factory mode) If you don't have DDC Manager, Use this method. Into the Factory Mode.

  • Page 134: Mechanical Diagram

    4. Troubleshooting 4-8. Mechanical diagram 4-8-1. UD5XXX 22UD50XX 27UD50XX 32UD5XXX 37UD5XXX 40UD5XXX 46UD5XXX Set with Stand 645 x 176.3 x 453.3 522 x 144.8 x 377 768.0 x 240.0 x 532.1 890.6 x 255.0 x 602.1 955.8 x 255.0 x 638.5 1091.8 x 275.0 x 714.8 (W x D x H) (645 x 176.3 x 456.5) Size...

  • Page 135: Pcb Diagram

    4. Troubleshooting 4-9. PCB diagram 4-9-1. PCB layout U66A – UD55XX (32" / 37" / 40" / 46") „ U66A – UD55XX (32" / 37" / 40" / 46") USB2 IC1701_LAN ETHERNET IC1101 DDR IC1201 SUB MICOM OPTICAL CN201 USB1 IC1102 DDR POWER CNT IC1302 FLASH...
  • Page 136 4. Troubleshooting BOTTOM INNER 1 INNER 2 4-87...
  • Page 137 4. Troubleshooting U66A – UD57XX (32" / 37" / 40" / 46") „ U66A – UD57XX (32" / 37" / 40" / 46") USB2 IC1701_LAN ETHERNET IC1101 DDR IC1201 SUB MICOM OPTICAL CN201 USB1 IC1102 DDR POWER CNT IC1302 FLASH HDMI4 CN1601_FHD IC1001...
  • Page 138 4. Troubleshooting BOTTOM INNER 1 INNER 2 4-89...
  • Page 139 4. Troubleshooting U57A – UD50XX (32" / 37" / 40" / 46") „ U57A – UD50XX (32" / 37" / 40" / 46") USB2 IC1701_LAN ETHERNET IC1101 DDR OPTICAL CN201 POWER CNT IC1102 DDR USB1 IC1703_LAN ETHERNET HDMI4 IC1111 X5 Scaler IC1301 FLASH CN1602_FHD LVDS CNT...
  • Page 140 4. Troubleshooting BOTTOM INNER 1 INNER 2 4-91...
  • Page 141 4. Troubleshooting U57A – UD40XX (32") „ U57A – UD40XX (32") IC1101 DDR OPTICAL CN201 USB1 POWER CNT IC1102 DDR HDMI4 IC1111 IC1301 FLASH X5 Scaler CN1601_HD LVDS CNT HDMI3 IC1201 SUB MICOM HDMI2 IC301 CN1201 AUDIO AMP FUNCTION CNT HDMI1 COMP CN302...
  • Page 142 4. Troubleshooting BOTTOM INNER 1 INNER 2 4-93...
  • Page 143 4. Troubleshooting U57B – UD40XX(19")_UD50XX(22" / 27") „ U57B – UD40XX(19")_UD50XX(22" / 27") CN1201 CN302 FUNCTION CNT SPEAKER CNT H/P OUT IC1201 SUB MICOM TUNER CN201 POWER CNT IC1301 FLASH IC1101 DDR SCART IC1102 DDR COMP IC1111 X5 Scaler D-SUB CN1602_FHD LVDS CNT PC L/R...
  • Page 144 4. Troubleshooting BOTTOM INNER 1 INNER 2 4-95...
  • Page 145 4. Troubleshooting SMPS_UD5XXX(32") „ Model / Inch CODE UD5XXX / 32” BN44-00460A PSLF800A03A SMPS_UD5XXX „ Model / Inch CODE UD5XXX / 37", 40" BN44-00422B PD46A0_BDY 4-96...
  • Page 146 4. Troubleshooting SMPS_UD5XXX(46") „ Model / Inch CODE UD5XXX / 46" BN44-00422A PSLF121A03A SMPS_UD50XX(22")_UD40XX(19") „ Model / Inch CODE UD50XX / 22"_UD40XX / 19" BN44-00448A PD22A0_BDY 4-97...
  • Page 147 4. Troubleshooting SMPS_UD50XX(27") „ Model / Inch CODE UD50XX / 27" BN44-00450A PD27A0_BDY SMPS_UD40XX(32") „ Model / Inch CODE UD40XX / 32" BN44-00421A PSLF800A03A 4-98...

  • Page 148: Wiring Diagram

    5. Wiring Diagram 5. Wiring Diagram 5-1. Wiring Diagram 32"/37"/40"/46" „...
  • Page 149 5. Wiring Diagram 19"/22"/27" „...

  • Page 150: Connector

    5. Wiring Diagram 5-2. Connector UD55XX_57XX(U66A) „ POWER IN (CN201) FUNCTION (CN1201) MSDA SW_POWER B12VS FUNC_INTR SW_INVERTER 3.3V LED_STB B13V MSCL SPEAKER (CN302) B13V B12VS PWM_DIMMING LVDS OUT (CN1601_FHD) PC (CN401) EVEN[0]- PC_RED PC_5V PC_GREEN IDENT_PC ODD[4]+ PC_BLUE R_FANET ODD[4]- T_FANET DSDA ODD[3]+...
  • Page 151 5. Wiring Diagram • TUNER (option by sec code) SCART (CN501_SC) DVB_TC (BN40-00221A) RF_AGC IF-AGC SC_G DIF 1 DIF 2 SC_CVBS_IN IDENT_SC SC_B SC_CVBS_OUT CVBS SC_SL_IN IF-TP SC_FB SC_SR_IN DVB_TCS2 (BN40-00219A) SC_R SC_SL_OUT TS_CLK SC_SR_OUT SYNC 1.8V VALID COMPONENT/AV (CN503) ERROR 3.3V RESET...
  • Page 152 5. Wiring Diagram UD50XX(U57A) „ POWER IN (CN201) LVDS OUT (option by model) UD4000 (CN1602_HD) SW_POWER B12VS Panel_VCC ODDCLK+ SW_INVERTER Panel_VCC ODDCLK- B13V Panel_VCC Panel_VCC ODD[2]+ B13V Panel_VCC ODD[2]- B12VS PWM_DIMMING ODD[1]+ LVDS OUT (option by model) ODD[1]- UD5000 (CN1601_FHD) TCON_WP EVEN[0]- FORMAT...
  • Page 153 5. Wiring Diagram HEADPHONE (CN301) TUNER RF_AGC IF-AGC HP_L IDENT_HP DIF 1 HP_R DIF 2 SPDIF (OP301) SPDIF_OUT CVBS HDMI (CN601~CN604) IF-TP RX2+ RXCLK- RX2- HDMI_CEC RX1+ RX1- RX0+ 5V / IDENT RX0- RXCLK+ SCART (CN501_SC) SC_G SC_CVBS_IN IDENT_SC SC_B SC_CVBS_OUT SC_SL_IN SC_FB...
  • Page 154 5. Wiring Diagram UD40XX_50XX(U57B) „ POWER IN (CN201) FUNCTION (CN1201) MSDA SW_POWER B12VS FUNC_INTR SW_INVERTER 3.3V LED_STB B13V MSCL SPEAKER (CN302) B13V B12VS PWM_DIMMING LVDS OUT (option by inch) PC/DIV SOUND (CN402) 19" (CN1602_HD) Panel_VCC ODDCLK+ PC_SL_IN Panel_VCC ODDCLK- PC_SR_IN Panel_VCC USB (CN1501) Panel_VCC...
  • Page 155 5. Wiring Diagram SCART (CN501_SC) SC_G SC_CVBS_IN IDENT_SC SC_B SC_CVBS_OUT SC_SL_IN SC_FB SC_SR_IN SC_R SC_SL_OUT SC_SR_OUT COMPONENT/AV (CN503) COMP_Y/AV_CVBS IDENT_COMP COMP_PB SL_IN IDENT_AV SR_IN COMP_PR TUNER RF_AGC IF-AGC DIF 1 DIF 2 CVBS IF-TP...

  • Page 156: Connector Functions

    5. Wiring Diagram 5-3. Connector Functions Connector Functions Main  IP (14p) Supply main power and dimming signal from IP Board to Main Board. The LVDS signal transfered from Main Board to Panel. Main  T-CON (51p/30p LVDS) Supply power from IP board to Driver Board. IP ...
  • Page 157 This Service Manual is a property of Samsung Electronics Co.,Ltd. © 2011 Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable All rights reserved. International and/or domestic law. Printed in Korea...

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