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SERVICE

Manual

TFT-LCD Monitor

Contens

1. Precautions

2. Product specification

3. Disassembly and Reassemble

4. Troubleshooting

5. Wiring Diagram

LCD-Monitor

Chassis : WDU1
Model : T23A750

T27A750

T23A750 / T27A750

Содержание SyncMaster T23A750

Страница 1: ...ERVICE Manual TFT LCD Monitor Contens 1 Precautions 2 Product specifications 3 Disassembly and Reassemble 4 Troubleshooting 5 Wiring Diagram LCD Monitor Chassis WDU1 Model T23A750 T27A750 T23A750 T27A750 ...

Страница 2: ...ly 3 1 3 1 Disassembly 3 1 4 Troubleshooting 4 1 4 1 First Checklist for Troubleshooting 4 1 4 2 No Power 4 2 4 3 HDMI No Screen 4 8 4 4 Faults and Corrective Actions 4 13 4 5 Adjustment 4 14 4 6 How to Access Service Mode 4 14 4 7 White Balance Calibration 4 17 4 8 White Ratio Balance Adjustment 4 18 4 9 Servicing Information 4 19 4 10 Software Upgrade 4 20 4 11 Micom Program Upgrade 4 21 5 Wirin...

Страница 3: ...anual is a property of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International and or domestic law 2011 Samsung Electronics Co Ltd All rights reserved Printed in Korea ...

Страница 4: ...ng them 3 1 Disassembly Turn the monitor off before beginning the disassembly process 1 When disassembling the monitor do not use any metal tools except for the 2 provided jig Disassemble the monitor carefully as directed in the following procedures 3 Description Photo 1 Pull and separate the REAR SUB in the direction of the arrows 2 Unfastened the 4 screws disconnect the 2 cables then separate th...

Страница 5: ...the 2 screws from the COVER REAR and separate the COVER FRONT starting from the upper part as shown in the image Screw 6001 001114 2 EA Internal locking tabs on the front and back covers 4 Turn the product over and separate the COVER REAR as shown in the image ...

Страница 6: ...3 3 3 Disassembly and Assembly Description Photo 5 Remove the tape as shown in the image 6 Remove the jacks and cables from the main board and separate the speakers ...

Страница 7: ...3 4 3 Disassembly and Assembly Description Photo 7 Remove the LVDS cable When you reassemble be careful not to reverse LVDS cable The direction of the cable is printed on it Panel Main ...

Страница 8: ...3 5 3 Disassembly and Assembly Description Photo 8 Remove the 4 screws and separate the main board Screw 6003 000264 4 EA ...

Страница 9: ...m the main board and BRACKET AV and separate the BRACKET AV New type of LVDS connector applied to 11 model Double locking 1 Flip up the locking tab on top of the connector 2 Squeeze the edge of the connector to release the second tab lock and gently pull the connector away 10 Separate the BRACKET PCB ...

Страница 10: ...3 7 3 Disassembly and Assembly Description Photo 11 Separate the COVER STAND REAR 12 Remove the 4 screws and separate the HINGE and STAND NECK Screw 6003 001374 4 EA ...

Страница 11: ...3 8 3 Disassembly and Assembly Description Photo 13 Separate the STAND MIDDLE 14 Remove the 4 screws from the STAND BOTTOM Screw 6003 001785 4 EA ...

Страница 12: ...ion Photo 15 Separate the STAND TOP Reassembly procedures are in the reverse order of disassembly procedures Screw Size Code No A mm B mm C mm Q ty 6001 001114 8 6 4 6 EA 6003 000264 6 6 3 4 EA 6003 001374 8 12 4 4 EA 6003 001785 8 8 4 5 EA ...

Страница 13: ...obs insulating materials cabinet backs adjustment and 2 compartment covers or shields isolation resistorcapacitor networks mechanical insulators etc Leakage Current Hot Check Figure 1 1 3 Do not use an isolation transformer during this test Use a leakage current tester or a metering system that complies with American National Standards Institute ANSI C101 1 Leakage Current for Appliances and Under...

Страница 14: ...rd from the AC power source and disconnect the DC Power Jack before attempting 1 to a remove or reinstall any component or assembly b disconnect PCB plugs or connectors c connect a test component in parallel with an electrolytic capacitor Some components are raised above the printed circuit board for safety An insulation tube or tape is sometimes used 2 The internal wiring is sometimes clamped to ...

Страница 15: ...inum foil or other conductive materials Immediately before removing the protective material from the leads of a replacement ESD touch the protective material 7 to the chassis or circuit assembly into which the device will be installed Be sure no power is applied to the chassis or circuit and observe all other safety precautions Minimize body motions when handling unpackaged replacement ESDs Motion...

Страница 16: ...h no particular set top box and provides simple access with a single remote control Excellent Picture Quality ሪ ሪ Dynamic Contrast ሪ ሪ Automatically detects the input visual signal and adjusts to create optimum contrast ATV DTV Tuner HDMI Stereo SRS Trusurround HD support ሪ ሪ Convenience ሪ ሪ The TV utilizes the HDMI system to implement perfect digital sound and picture quality ...

Страница 17: ... offf DPMS 1 5 Watt Dimensions Set W x D x H 543 4 x 405 4 x 190 9 mm with Stand 543 4 x 321 0 x 34 0 mm without Stand 631 2 x 454 2 x 190 9 mm with Stand 631 2 x 370 4 x 34 0 mm without Stand Weight Set After installation Stand 6 0 Kg with Stand 8 19 Kg Package 6 85 Kg with Stand 9 5 Kg Package TV System Tuning Frequency Synthesize US Canada System NTSC 3 58 ATSC Sound M EU CIS Australia New Zeal...

Страница 18: ...1 Response Time 3ms 5ms Viewing Angle Left Right Up Down 85 85 80 80 Left Right Up Down 80 80 80 80 PC Input DVI HDMI D SUB DVI HDMI Power Consumption T23A750 65 W 0 5 Watt Switch off T27A750 70 W 0 5 Watt Switch off 35W 0 3W DPMS Less than 1 5 Watt Less than 0 3W Sound Output 7W X 2 5W x 2 Dynamic Contrast Ratio MEGA DCR 1 MEGA DCR 1 Sound Effect Dolby Digital Plus Dolby Digital Pulse DTS SRS The...

Страница 19: ...tronics Service center Warranty Card Not available in all locations BN68 02001A User Manual BN68 03598A Cleaning Cloth BN63 01798B Remote Control Batteries AAA x 2 USA Canada AA59 00442A EU CIS AA59 00445A Brasil AA59 00451A Australia New Zealand Singapore AA59 00445A Batteries AAA x 2 4301 000121 Adapter BN44 00455A Scart Gender BN39 01154X EU Only ...

Страница 20: ...000598 EU CIS 3903 000525 Brasil 3903 000532 Australia New Zealand Singapore 3903 000563 Model Standard of LT23A750ND ZA Samsung Electronics Service center HDMI Cable BN39 01502A Component Gender BN39 01154W Stereo Cable BN39 01286A 3D Glasses Assy BN96 18236A S W DRIVER TRIDEF 3D BN46 00078D ...

Страница 21: ...y indicate that the monitor is out of scan range or that you need to check the signal cable Environment The location and the position of the monitor may influence the quality and other features of the monitor If there are any sub woofer speakers near the monitor unplug and relocate the woofer to another room Remove all electronic devices such as radios fans clocks and telephones that are within 3 ...

Страница 22: ...agnostics IC206 IC2001 IC202 CN201 IC2010 IC201 IC1030 Bottom side IC207 Bottom side IC204 Yes No Does proper 14V appear at pin No 1 of CN201 1 Check DC Power Adapter Yes No Does proper 3 3V 1 5V and 1 2V appear at pin BD235 BD216 BD220 and BD226 3 4 Check related circuit of IC204 IC201 IC206 and IC202 No Does proper 14V appear at BD1020 1 Does proper 5V appear at BD237 BD240 2 Check related circu...

Страница 23: ...4 3 4 Troubleshooting 4 2 1 Circuit diagrams when the power does not turn on ...

Страница 24: ...4 4 4 Troubleshooting ...

Страница 25: ...4 5 4 Troubleshooting ...

Страница 26: ...4 6 4 Troubleshooting ...

Страница 27: ...4 7 4 Troubleshooting 4 2 2 Waveforms 1 2 3 4 5 ...

Страница 28: ...01 CN602 CN201 CN604 Yes No Does Function LED persists white light after power on Power adapter Yes No Dose proper 5V appear at pin No 18 of CN604 or CN602 Check HDMI cable connection Yes No Does proper signals appear at pin No 91 SDA 6 and No 92 SCL 7 of IC601 Change IC601 No Does proper clock signals appear at pin NO 11 12 23 24 of CN604 or CN602 8 9 Change main board because of scaler problem Y...

Страница 29: ...148SE 100 100OHM ADUC20S02010 10OHM 10OHM DGND 20 22OHM 100NF EXC28CG900U DGND R621 R620 R690_DD R689_DD FT601 FT602 CN602 RA602 R624 R627 D613 TP604 VT604 D601 D602 C617 6G5 6E2 6E2 6E2 6E2 6E2 6E2 6E2 6H5 6E2 6H5 HDMI1_5V HDMI1_HPD SCL_DOWN HDMI1_DDC_SCL HDMI1_RXCLK HDMI1_RXCLK HDMI1_RX2 HDMI1_IDENT HDMI1_RX0 HDMI1_RX1 HDMI1_RX1 HDMI1_RX0 SDA_DOWN HDMI1_RX2 HDMI1_DDC_SDA HDMI_CEC 8 7 6 5 4 3 2 1...

Страница 30: ...HM DGND DGND DGND HDMI2_5V DGND STK7002 10KOHM 1 16W A5V_PW TPS2051BDBVR DGND FT604 FT603 R666 R665 Q610 R698 Q670 Q613 R667 R652 D660 Q614 R684 C611 IC622 R681 R683 TP603 CN604 R669 C685 IC621 C660 R626 R623 C616 D619 RA604 D615 C691 R690 6G5 6F2 6F2 6G5 6G2 6G2 6G2 6G2 6G2 6G2 MHL_AON ARC2_SINGLE HDMI2_RX1 HDMI2_DDC_SCL HDMI2_DDC_SDA HDMI2_RXCLK HDMI2_RXCLK HDMI2_HPD HDMI2_RX2 HDMI2_RX2 HDMI2_RX...

Страница 31: ...ON HDMI_RXCLK HDMI_RX2 HDMI_RX2 HDMI_RX1 HDMI_RX1 HDMI_RX0 HDMI_RXCLK HDMI_RX0 MGND1 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 GPIO3 GPIO2 GPIO1 DSDA1 T1X2N T1X1P T1X1N T1X0P T1X0N T1XCP T1XCN TCVDD12 TPVDD12 T0X2P T0X2N T0X...

Страница 32: ...4 12 4 Troubleshooting 4 3 2 Waveforms 6 7 8 9 ...

Страница 33: ... a full black screen is displayed continually regardless of the signals Causes This fault occurs due to a fault or incorrect connections of the LVDS cable Corrective Actions Replace or reconnect the LVDS cable correctly Symptoms When connecting the DVD noise occurs on the screen Causes The HDCP key is not inserted Corrective Actions Enter the HDCP key ...

Страница 34: ... parts To protect aganist shock hazard use an isolation transform 7 4 6 How to Access Service Mode 4 6 1 Entering Factory Mode To enter Service Mode Press the remote control keys in this sequence If you do not have Factory remote control ሪ ሪ For Europe Australia New Zealand Singapore If you have Factory remote control ሪ ሪ Key Functions Channel Key Select an option Volume Key Increase or decrease t...

Страница 35: ...FRC3D XXXX PARMA3D XXXX F CT MFM XXX Function SW version Bluetooth XXX Bluetooth SW version Type 27A1TF0E Model LTXXA750 Wired MAC SUCCESS DRM Cert O Netflix X Widevine X Factory Data Ver XXX EERC Version XXX DTP AP COMP 645 DTP BP HAL 0130 DTP BP 0623 Date Of purchase XX XX XX Date of the first channel 2 Button functions in service mode Menu Full Menu Display Move to Parent Menu Direction Keys It...

Страница 36: ...ption SCC ADC WB ADC ADC Target ADC Result White Balance SVC Test Pattern DCc_Check_Local 0x0 Panel Auto Setting Failure DCC_Check_Total 0x0 PANEL DISPLAY TIME 12Hr IR_ON_OFF OFF T CON USB Download Failure BT_ON_OFF ON T CON CheckSum BT ADDRESS e4e0c53574a2 CPLD USB Download Failure BT ADDRESS REMOCON PAIRING X BT_AUDIO_ON_OFF OFF TC905x7 FAN Step 7 MICOM UPGRADE off SVC Reset MICOM POWER OFF OFF ...

Страница 37: ...t only after comparing the result with that of the Master equipment Input mode Calibration Pattern PC IN Model_ 21 Perform in VESA XGA 1024x768 B W Pattern 24 Lattice Table 1 Method of Color Calibration PC 1 Apply the VESA XGA Lattice N0 21 pattern signal to the PC IN port 2 Press the Source key to switch to PC mode 3 Enter Service mode 4 Select the Calibration menu 5 Select the PC Calibration men...

Страница 38: ...e other equipment only after comparing the result with that of the Master equipment Set Aging time 60min Calibration and Manual setting for WB adjustment HDMI Calibration at 24 Chessboard Pattern Manual adjustment 92 pattern 720p COMP Calibration at 24 Chessboard Pattern Manual adjustment at 92 pattern 720p AV Calibration at 24 Chessboard Pattern Manual adjustment at 92 pattern NTSC If finishing i...

Страница 39: ...ton to select By USB The message Scanning for USB It may take up to 1 minute is displayed The message Upgrade version XXXX to version XXXX 4 The system will be reset after upgrade is displayed Press the or to select the OK then press the ENTER button Please be careful to not disconnect the power or remove the USB drive while upgrades are being applied The Monitor will turn off and turn on automati...

Страница 40: ... If you select MENU Support Software Upgrade on remote control you ll see below picture 2 Press ENTER then you ll see below picture Select Yes 3 Micom program is now upgrading as below picture After Software Upgrade is process by 100 the monitor is automatically turn off and on ...

Страница 41: ...S1 XXX E Manual MGSATSCA xxxx EDID SUCCESS CALIB AV COMP PC HDMI Option 2022090012A DTP SDAL GENS XXXX RFS GENOA_S_XXXX 20XX XX XX Onboot 0065 GASFRC3D XXXX PARMA3D XXXX F CT MFM XXX Bluetooth XXX Type 27A1TF0E Model LTXXA750 Wired MAC SUCCESS DRM Cert O Netflix X Widevine X Factory Data Ver XXX EERC Version XXX DTP AP COMP 648 02 DTP BP HAL 0133 1 DTP BP 0623 01 Date Of purchase XX XX XX ...

Страница 42: ...DRESS e4e0c53574a2 CPLD USB Download Failure BT ADDRESS REMOCON PAIRING X BT_AUDIO_ON_OFF OFF TC905x7 FAN Step 7 MICOM UPGRADE off SVC Reset MICOM POWER OFF OFF Function UPGRADE off Temp Last 60 00 Temp Read 0 00 DDC Version 0x0 DCC_CHK_SEL 0 3 Press the button on the remocon and wait the completion of upgrade The system will be reset after upgrade WARNING Don t turn off the monitor until the upgr...

Страница 43: ...1N 73 DGND 30 B_TXO1P 74 DGND 31 B_TXO2N 75 LED1 32 B_TXO2P 76 LED2 33 DGND 77 LED3 34 B_TXOCN 78 VLED1 35 B_TXOCP 79 VLED2 36 DGND 80 LED4 37 B_TXO3N 81 LED5 38 B_TXO3P 82 LED6 39 DGND 40 B_TXE0N 41 B_TXE0P 42 B_TXE1N 43 B_TXE1P 44 B_TXE2N N301 1 R 2 R 3 L 4 L CN201 1 A14V_PW 2 DGND 3 DGND 4 DGND CN303 1 SPDIF_OUT 2 B5V_PW 3 DGND CN1701 1 TX 2 DGND 3 TX 4 RX 5 DGND 6 RX 7 NC 8 LAN_GND TU701_HN 1 ...

Страница 44: ...3 USB2_DP 4 DGND CN1502 1 USB1_5V_VCC 2 USB1_DM 3 USB1_DP 4 DGND CN1201_3D 1 IR 2 DGND 3 A3 3V_PW 4 MSCL_A5V 5 MSDA_A5V 6 WAKE 7 LED_STB 8 DGND 9 NC 10 NC 11 FRAME_SYNC_IN 12 EMITTER_3D_SYNC 13 DGND 14 USB_BT_D 15 USB_BT_D 16 DGND 17 WAKE 18 POWER_DET CN604 1 HDMI2_RX2 2 MHL_AON 3 HDMI2_RX2 4 HDMI2_RX1 5 DGND 6 HDMI2_RX1 7 HDMI2_RX0 8 DGND 9 HDMI2_RX0 10 HDMI2_RXCLK 11 DGND 12 HDMI2_RXCLK 13 HDMI_...

Страница 45: ...CN1502 CN1801_CI Europ Only CN1601 Bottom side 1 2 3 4 5 6 7 8 9 10 11 11 12 12 13 No Connector 1 Speaker 2 Function B T Connector Connect with function Assy 3 Adaptor DC Power 14V 4 Digital Audio Output Optical 5 LAN 6 ATV DTV Tuner 7 Service Debug Connector 8 DVI Audio IN 9 Headphone 10 AV IN Video Audio Component Y Pb Pr 11 HDMI DVI ARC 12 USB Port 13 LVDS Connector Connect to Panel ...

Страница 46: ...er adapter to the Main board When a problem occurs The Blank Screen and No Power errors may occur CN501 Component video input PC audio input terminal When a problem occurs The no MIC input and no speaker output error may occur CN303 Digital Audio output terminal When a problem occurs The No USB Download Operating error may occur CN401_RS Headphone output terminal 5 4 Cables Use LVDS 31P 51P FPC Ca...

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