Samsung T260HD Service Manual
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Samsung T260HD Service Manual

Samsung T260HD Service Manual

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SERVICE
TFT-LCD Monitor
T260HD / T240HD
Refer to the service manual in the GSPN (see the rear cover) for the more information.
LCD-Monitor
Chassis
: LS26TDV / LS24TDV
Model
: T260HD / T240HD
Manual
1. Precautions
2. Product specifications
3. Disassembly and Reassemble
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram
Contens

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Summary of Contents for Samsung T260HD

  • Page 1 LCD-Monitor Chassis : LS26TDV / LS24TDV Model : T260HD / T240HD SERVICE Manual TFT-LCD Monitor Contens 1. Precautions 2. Product specifications 3. Disassembly and Reassemble 4. Troubleshooting 5. Exploded View & Part List 6. Wiring Diagram T260HD / T240HD Refer to the service manual in the GSPN (see the rear cover) for the more information.

  • Page 2: Table Of Contents

    4-11. Service Adjustment ..................... 4-21 4-12. Software Upgrade ....................... 4-23 5. Exploded View & Part List ..................5-1 5-1. Exploded View (260HD) ....................5-1 5-2. Parts List (T260HD) ......................5-3 5-3. Exploded View (T240HD) ....................5-6 5-4. Parts List (T240HD) ......................5-8 6. Wiring Diagram ......................6-1 6-1. Wiring Diagram - Main Board ..................6-1 6-2.
  • Page 3 GSPN (Global Service Partner Network) Area Web Site North America http://service.samsungportal.com Latin America http://latin.samsungportal.com http://cis.samsungportal.com Europe http://europe.samsungportal.com China http://china.samsungportal.com Asia http://asia.samsungportal.com Mideast & Africa http://mea.samsungportal.com © 2009 Samsung Electronics Co.,Ltd. This Service Manual is a property of Samsung Electronics Co.,Ltd. All rights reserved. Any unauthorized use of Manual can be punished under applicable Printed in Korea International and/or domestic law. P/N: BN82-00605A-00...
  • Page 4 3. Disassembly and Assembly 3. Disassembly and Assembly This section describes the disassembly and reassembly sequences for this monitor. Warning: As this monitor has parts that are sensitive to static electricity, be careful when handling them. 3-1. Disassembly Caution: 1. Turn the monitor off before beginning the disassembly process. 2.
  • Page 5 3. Disassembly and Assembly Description Photo Screws 2. Remove the cover and the LCD panel using the provided jig on both grooves at the bottom. Caution : Remove the cover and the LCD panel using the provided jig on both grooves at the bottom.
  • Page 6 3. Disassembly and Assembly Description Photo Screws 4. After remove COVER-REAR, then disconnect SPEAKER , FUNCTION wire. 5. Disconnect LVDS cable from panel.
  • Page 7 3. Disassembly and Assembly Description Photo Screws 6. After disconnecting SHIELD-LAMP of left side, disassemble lamp wire between panel and IP Board. Caution : When removing the SHIELD-LAMP, do not remove the GASKET-SHEET from the SHIELD-LAMP. If the GASKET-SHEET is damaged, you will not be able to receive free service.
  • Page 8 3. Disassembly and Assembly Description Photo Screws 8. Remove the LCD panel. 9. Remove the IR module by tilting the left snap to the right. 10. Remove the LED module by sliding the snap designated in the right figure backwards. 11. Remove the holders from the four (4) snaps designated in the right figure using the provided jig.
  • Page 9 3. Disassembly and Assembly Description Photo Screws 12. Remove the two (2) connectors. Caution : Servicing is not supported for the PCB. ▶Assembly 13. The assembly is in the reverse order of the disassembly. 14. Connect the disassembled snap and the LED module again.
  • Page 10 5. Exploded View & Part List 5. Exploded View & Part List 5-1. LS26TDVSUV/EN Exploded View (260HD)
  • Page 11 5. Exploded View & Part List 5-1-1. LS26TDVSUV/EN Parts List (T260HD) Location No. Code No. Description & Specification Q’ty SA/SNA Remark M0006 BN96-07745J ASSY SHIELD P-COVER;LS26TD(MFM),EUROPE,S S.N.A M0013 BN96-07744A ASSY COVER P-REAR;LS26TD(MFM),Europe,PMM M0014 BN94-02507X ASSY PCB MAIN;LS26TDVSUV/EN S.N.A M0027 BN96-07604A ASSY STAND P-BASE;T260,PMMA+ABS HB,RD02,...
  • Page 12 5. Exploded View & Part List 5-2. LS26TDVSUV/EN Parts List (T260HD) Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark LS26TDVSUV/ T260HD,WUM2/S26A1-LTD,26,LCD-MO,NETHERLA M0001 BN90-01678A ASSY COVER FRONT;LS26TW(T260),ROSE BLACK S.N.A...
  • Page 13 ...3 BN63-04414A COVER-STAND FRONT;T240HD,PMMA+ABS,HB,BK2 S.N.A ...3 T0054 BN96-07589B ASSY HINGE P;T260,SM50C T2.3 S.N.A ...3 T0524 6902-000956 BAG PE;HDPE/NITRON,T0.015/T0.5,W200,L200 S.N.A T0003 BN96-07743A ASSY COVER P-FRONT;LS26TD(T260HD),PMMA+A ...3 C/F+H/BOSS 6003-000282 SCREW-TAPTYPE;BH,+,-,B,M3,L8,ZPC(BLK),SW S.N.A ...3 M0960 BN61-03948A HOLDER-BOSS;T260,PMMA+ABS HB,WH15 S.N.A ...3 M0112 BN63-04444F COVER-FRONT;T260HD(Europe),PMMA+ABS,HB,R S.N.A ...3...
  • Page 14 BN68-02096A MANUAL FLYER-QSG;T200HD T220HD,SyncMaste S.N.A ...3 T0091 HA83-00047A LP-TAPEACETATE;T0.1MM,W20MM,L200MM S.N.A ...3 BN68-00907F MANUAL FLYER-00,WEE;comm,Samsung,23Lang, S.N.A ...3 BN68-02186A MANUAL FLYER-TOC GUIDE;COMM,SAMSUNG,10 L S.N.A T0268 3903-000042 CBF-POWER CORD;DT,EU,FP3/YES,IEC320 C13/ M0114 BN39-00244G CBF SIGNAL;D-sub cable,15P/15P,20276N,15 T0238 BN68-01925E MANUAL FLYER-WARRANTY CARD;comm,Samsung, S.N.A T0074 BN59-00865A REMOCON;DLP,CRT,TM940,EUROPE,39,92g...

  • Page 15: 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 16: 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 17: Installation Precautions

    1. Precautions 1-4. Installation Precautions For safety reasons, more than two 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 18 1. Precautions Memo...

  • Page 19: Product Specifications

    2. Product specifications 2. Product specifications 2-1. Feature & Specifications Model T260HD / T240HD Feature Supreme Digital Interface & Networking � - With a built-in HD digital tuner, it supports HD broadcasting with no particular set-top box and provides simple access with a single remote control.
  • Page 20 2. Product specifications Specifications Description Item T260HD T240HD Environmental Operating Temperature: 50˚C ~ 104˚F(10˚C ~ 40˚C) Considerations Operating Humidity : 10% ~ 80% Storage Temperature: -4˚C ~ 113˚C(-20˚C ~ 45˚C) Storage Humidity: 5% ~ 95% Antenna Input 75Ω Sound Characteristic...

  • Page 21: Spec Comparison To The Old Models

    2. Product specifications 2-2. Spec Comparison to the Old Models Model T260HD/T240HD(Refresh) T260HD / T240HD Design Screen Size 26” / 24” 26” / 24” Frequency 30 ~ 81 kHz 30 ~ 81 kHz Horizontal 56 ~ 75 Hz 56 ~ 75 Hz...
  • Page 22 Remark Remote Control & BN59-00865A Batteries (AAA x 2) Power Cord 3903-000085 Stand Body BN96-07347B Stand Base BN96-07345A Samsung Electronics Service center D-Sub Cable BN39-00244G CBF SIGNAL-DVI(D) BN39-00246K User’s Guide, Monitor Driver, BN96-11045A Natural Color Pro Software Cleaning Cloth BN63-01798A...
  • Page 23 7. Schematic Diagram 7. Schematic Diagram 7-1. Circuit Descriptions...
  • Page 24 7. Schematic Diagram 7-2. Block Diagram (IP Board)
  • Page 25 7. Schematic Diagram 7-3. Power Tree (Main Board)
  • Page 26 7. Schematic Diagram Memo...
  • Page 27 7. Schematic Diagrams 7-4. Schematic Diagrams This Document can not be used without Samsungs authorization. 7-4-1. Schematic Diagrams (POWER)
  • Page 28 7. Schematic Diagrams 7-4-2. Schematic Diagrams (Function / DDR Memory / Scaler) This Document can not be used without Samsungs authorization.
  • Page 29 7. Schematic Diagrams 7-4-3. Schematic Diagrams (LVDS / OP AMP / Scaler) This Document can not be used without Samsungs authorization.
  • Page 30 7. Schematic Diagrams 7-4-4. Schematic Diagrams (Tuner / Channel Chip ) This Document can not be used without Samsungs authorization.
  • Page 31 7. Schematic Diagrams 7-4-5. Schematic Diagrams (Connector) This Document can not be used without Samsungs authorization.
  • Page 32 7. Schematic Diagrams 7-4-6. Schematic Diagrams (TMDS Switch) This Document can not be used without Samsungs authorization. 7-10...
  • Page 33 7. Schematic Diagrams 7-4-7. Schematic Diagrams (Sound Amp / Headphone) This Document can not be used without Samsungs authorization. 7-11...
  • Page 34 7. Schematic Diagrams Memo 7-12...

  • Page 35: Troubleshooting

    4. Troubleshooting 4. Troubleshooting 4-1. First Checklist for Troubleshooting 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.

  • Page 36: No Power

    4. Troubleshooting 4-2. No Power Symptom Though the power swtich on, the LED power off and the screen is blank. Check Power cable. Check whether the Lamp connector is connected correctly to the IP. Major checkpoints Check whether the power cable is connected correctly to the MAIN. Check whether the Function cable is connected correctly to the MAIN.
  • Page 37 4. Troubleshooting 4-2-1. Circuit diagrams when the power does not turn on...

  • Page 38: No Video (Analog Pc)

    Does the digital data appear at the Check IC4010. output of RA4000, RA4001? Change a main PBA. Check a LVDS cable? Please, Call to Samsung Co. LTD. Replace a lcd panel? Caution Make sure to disconnect the power before working on the IP board.
  • Page 39 4. Troubleshooting 4-3-1. Circuit diagrams and waveforms (Analog) when no screen is displayed on the monitor...
  • Page 40 4. Troubleshooting Analog PC 4-3-2. Waveforms when no screen is displayed ( ① R,G,B Output Signal of IC4010...

  • Page 41: No Video (Digital-Hdmi)

    INPUT of IC4010 at RA4004, Change a main PBA. RA4005 (HDMI1) or RA4002, RA4003(HDMI2)? Check a LVDS cable? Please, Call to Samsung Co. LTD. Replace lcd panel? Caution Make sure to disconnect the power before working on the IP board.
  • Page 42 4. Troubleshooting (Digital-HDMI) 4-4-1. Circuit diagrams and waveforms when no screen is displayed on the monitor...
  • Page 43 4. Troubleshooting Digital-HDMI 4-4-2. Waveforms when a blank screen is displayed ( ② Digital Output Data of IC4010 ③ Signal of HDMI(Data)

  • Page 44: No Picture (Tuner_Cvbs)

    ⑤ Does the digital data appear Check a IC4010. at R5055,R5056? Change a main PCB ass’y. Check a LVDS cable? Please, Call to Samsung Co. LTD. Replacea lcd panel? Caution Make sure to disconnect the power before working on the IP board. 4-10...
  • Page 45 4. Troubleshooting (Tuner_CVBS) 4-5-1. Circuit diagrams and waveforms when no screen is displayed on the monitor 4-11...
  • Page 46 4. Troubleshooting (Tuner_CVBS) 4-5-2. Waveforms when a blank screen is displayed ④ Tuner I2C Data signal. ⑤ Tuner_CVBS Output Signal 4-12...

  • Page 47: No Picture (Tuner_Dtv)

    ④ Does the signal appear at #16~25of TU5003? Change a main PBA Check a LVDS cable? Please, Call to Samsung Co. LTD. Replace lcd panel? Caution Make sure to disconnect the power before working on the IP board. 4-13...
  • Page 48 4. Troubleshooting (Tuner_DTV) 4-6-1. Circuit diagrams and waveforms when no screen is displayed on the monitor 4-14...
  • Page 49 4. Troubleshooting (Tuner_DTV) 4-6-2. Waveforms when a blank screen is displayed ④ Digital Channel DATA signal 4-15...

  • Page 50: No Sound

    4. Troubleshooting 4-7. No Sound Symptom The LED power turns on but the screen is blank when the DVI cable is connected. Even though the LED power turns on, the screen is blank when connecting the DVI cable. Check the DVI cable connections. Major checkpoints Check whether the LVDS cable is connected correctly to the panel.
  • Page 51 4. Troubleshooting (No Sound) 4-7-1. Circuit diagrams and waveforms when no screen is displayed on the monitor 4-17...
  • Page 52 4. Troubleshooting (No Sound) 4-7-1. Waveforms when a blank screen is displayed ⑥ The Signal are Inputed to IC9002 ⑦ DC 3.3V 4-18...

  • Page 53: Faults And Corrective Actions

    4. Troubleshooting 4-8. Faults and Corrective Actions Fault Photo Symptoms and Corrective Actions Remarks Symptoms: DVI signals are not recognized. * Refer to the Training Manual for information on inputting the DVI DDC. Causes: This fault occurs when the PC does not recognize the mode information because the DVI DDC has not been input to the monitor.

  • Page 54: Adjustment

    4. Troubleshooting 4-9. Adjustment 4-9-1. 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. Correct impedance matching is essential. 4.
  • Page 55 4. Troubleshooting 4-11. Service Adjustment 4-11-1. 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 (Gray patten) 4-11-2.
  • Page 56 4. Troubleshooting 4-11-4. Method of Adjustment 1. Adjust the white balance of AV, Component and DVI Modes. (AV→Component) a) Set the input to the mode in which the adjustment will be made. (RF→DTV→PC→DVI). * Input signal - VIDEO Mode : Model #2 (744*484 Mode), Pattern #16 - DTV,DVI Mode : Model #6 (1280*720 Mode), Pattern #16 - HDMI Mode: Model #6(1280*720 Mode), Pattern #16 b) Enter factory color control, confirm the data.
  • Page 57 4. Troubleshooting 4-12. Software Upgrade 4-12-1. Micom Program Upgrade DDC Manager Connection  PC for MCU upgrading Connect to Parallel port 1. Prepare PC to Upgrade the Program. 2. Prepare the DDC Manager 3. Connect D-sub cable to Target Monitor TV 4.
  • Page 58 1. Goto installed Program folder (winDDC_V2-39) 2. Run winDDC 3. Select WinISP Menu 4. Make same setting like picture. 5. Choose Flash memory type - T-MFM(T200HD) : MX25L6405 - T-MFM(T220HD) : MX25L6405 - T-MFM(T240HD) : MX25L6405 - T-MFM(T260HD) : MX25L6405 4-24...
  • Page 59 4. Troubleshooting 6. Load File ( Select file to download) 7. Set Option to load Binary Files 8. Select files (bin file) 9. Click button to load files 10. Select “Flash1” and “Flash2” 4-25...
  • Page 60 4. Troubleshooting 11. Check the OK message (Load) 12. Click Auto Program button 13. If you see OK message (Verify), program download is completed After Upgrading Firmware  Factory mode 1. Factory remote control (SET POWER ON ) INFO -> Factory 2) Normal Remote control (SET POWER OFF) INFO ->...
  • Page 61 3. Choose Device Type. - T-MFM(T200HD) : WT61P8 - T-MFM(T220HD) : WT61P8 - T-MFM(T240HD) : WT61P8 - T-MFM(T260HD) : WT61P8 4. Load File ( Select file to download) 5. Set Option to load Binary Files 6. Select files (hex file) 7.
  • Page 62 4. Troubleshooting 8. Check the OK message (Load) 9. Click Auto Program button 10. If you see OK message (Verify), program download is completed 4-28...

  • Page 63: Wiring Diagram

    6. Wiring Diagram 6. Wiring Diagram 6-1. Wiring Diagram - Main Board...

  • Page 64: Wiring Diagram - Ip Board

    6. Wiring Diagram 6-2. Wiring Diagram - IP Board LVDS Connector (Connect to Panel) IP board 37088-001150 3711-005503 3701-001388 3701-001385 3701-001367 3722-000143 3701-001386 3722-002360 3722-002362 RGB Connector DVI-D Connector (PConnect to PC) (Connect to PC)

  • Page 65: Connector Functions

    6. Wiring Diagram 6-3. Connector Functions Connector Functions CN1005 Transmits LVDS signals from the Main board to the panel * When a problem occurs: The Blank Screen and No Power errors may occur. CN8003 VGA signal input terminal * When a problem occurs: The No RGB Output error may occur. CN901 DVI signal input terminal * When a problem occurs: The No DVI Output error may occur.
  • Page 66 6. Wiring Diagram Memo...

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