Samsung 2232MW Service Manual
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Samsung 2232MW Service Manual

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SERVICE
TFT-LCD Monitor
2232MW
Refer to the service manual in the GSPN (see the rear cover) for the more information.
LCD-Monitor
Chassis
: LPM22CS
Model
: 2232MW
Manual
1. Precautions
3. Disassembly and Reassemble
5. Exploded View & Part List
6. Wiring Diagram

Contens

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Summary of Contents for Samsung 2232MW

  • Page 1: Service Manual

    LCD-Monitor Chassis : LPM22CS Model : 2232MW 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 7. Schematic Diagram 2232MW Refer to the service manual in the GSPN (see the rear cover) for the more information.

  • Page 2: Table Of Contents

    Contents 1. Precautions ......................1-1 1-1. Safety Precautions ......................1-1 1-2. Servicing Precautions ..................... 1-2 1-3. Static Electricity Precautions ..................1-2 1-4. Installation Precautions ....................1-3 2. Product specifications .................... 2-1 2-1. Feature & Specifications ....................2-1 2-2. Spec Comparison to the Old Models ................2-2 2-3.
  • 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 © 2008 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:...
  • Page 4 3. Disassembly and Reassemble 3. Disassembly and Reassemble This section of the service manual describes the disassembly and reassembly procedures for the LS19DOV LCD monitor. WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling these components. 3-1. Disassembly Cautions: 1.
  • Page 5 3. Disassembly and Reassemble Description Picture Description Screws 4. Disconnect LVDS cable from panel. Then, remove cover jack from side. 5. Remove 4 screws of PC and DVI connector. Then, upset the shield. 6. Remove 8 marked SCREW of left picture. Disconnect IP board.
  • Page 6 5. Exploded View & Part List 5. Exploded View & Part List 5-1. LS22PMCSFV/XF Exploded View...
  • Page 7 5. Exploded View & Part List 5-1-1. LS22PMCSFV/XF Parts List Location No. Code No. Description & Specification Q’ty SA/SNA Remark T0003 BN96-07619A ASSY COVER P-FRONT;LS22PM,MFM,ABS,HB,BK2 M0215 BN07-00427A LCD-PANEL;M220Z1-L03 M0174 BN44-00177E IP BOARD;IP-45130C(D),PEBBLE 22” MFM,1.4 M0014 BN94-01802A ASSY PCB MAIN;LS22PMCSFV/XF S.N.A T0514 BN61-03302A BRACKET-SUPPORT;20”W(2032MW),SPTE,0.3...
  • Page 8 5. Exploded View & Part List 5-2. LS22PMCSFV/XF Parts List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark LS22PMCSFV/ 2232MW,WGE1/S22A7-LPM,22,LCD-MO,CHINA M0001 BN90-01632A ASSY COVER FRONT;LS22PM,BK26 S.N.A T0003 BN96-07619A ASSY COVER P-FRONT;LS22PM,MFM,ABS,HB,BK2 ...3 M0081 6003-000282 SCREW-TAPTITE;BH,+,-,B,M3,L8,ZPC(BLK),SW ...3 M0081 6003-000282 SCREW-TAPTITE;BH,+,-,B,M3,L8,ZPC(BLK),SW...
  • Page 9 5. Exploded View & Part List ...3 CN330 3711-000058 HEADER-BOARD TO CABLE;BOX,4P,1R,2.5MM,AN ...3 JA330 3722-000143 JACK-PHONE;1P(VER),AG,BLK,ANGLE ...3 JA333 3722-002143 JACK-PIN;5P,NI,GRN/BLU/RED/WHT/RED,STRAI ...3 JA330 3722-002176 JACK-PHONE;7P/4C,-,SN,L-BLU,- ...3 JA333 3722-002267 JACK-PIN;3P,AU,RED/WHT/YEL,ANGLE ...3 CN701 3722-002275 JACK-DIN;4P,-,SN,BLK,- ...3 CIS3 BN40-00098A TUNER;HTM-6B/235S,HTM-6B/235S,PAL BG,DK, ...3 T0174 BN97-02195A ASSY SMD;LS22PMCSFV/XF S.N.A ..4...
  • Page 10 5. Exploded View & Part List ..4 D120 0403-000579 DIODE-ZENER;BZX84C5V1,4.8-5.4V,200mW,SOT ..4 D115 0403-001411 DIODE-ZENER;-,5.49-5.73V,200mW,SOD-323,T ..4 D800 0403-001425 DIODE-ZENER;BZX84C33,31-35V,350mW,SOT-23 ..4 D133 0403-001435 DIODE-ZENER;QZX363C5V6,5.32-5.88V,200MW, ..4 ZD200 0403-001435 DIODE-ZENER;QZX363C5V6,5.32-5.88V,200MW, ..4 D0254 0404-001020 DIODE-SCHOTTKY;BAT54C,30V,200mA,SOT-23,T ..4 D0254 0404-001020 DIODE-SCHOTTKY;BAT54C,30V,200mA,SOT-23,T ..4 D504 0406-001163 DIODE-TVS;CDS3C05GTA,6.4V/-/-,-,SMD ..4 D505 0406-001163 DIODE-TVS;CDS3C05GTA,6.4V/-/-,-,SMD ..4...
  • Page 11 5. Exploded View & Part List ..4 T0087 1203-002835 IC-POSI.FIXED REG.;KIA7805AF,DPAK,3P,6.6 ..4 T0087 1203-002842 IC-POSI.FIXED REG.;AP1117D-33A,TO-252,3P ..4 IC109 1203-003015 IC-DC/DC CONVERTER;MP1410ES,SOIC,8P,4.9x ..4 T0170 1203-003059 IC-SWITCH VOL. REG.;MP1583,SOIC,8P,4.9x3 ..4 T0170 1203-003059 IC-SWITCH VOL. REG.;MP1583,SOIC,8P,4.9x3 ..4 T0087 1203-003561 IC-POSI.FIXED REG.;NCP551SN15T1G,TSOP-5, ..4 IC109 1205-003155 IC-LCD CONTROLLER;MST67889ALD-LF,LQFP,25 ..4...
  • Page 12 5. Exploded View & Part List ..4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R110 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4...
  • Page 13 5. Exploded View & Part List ..4 R110 2007-000078 R-CHIP;1Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000078 R-CHIP;1Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000078 R-CHIP;1Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000078 R-CHIP;1Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000078 R-CHIP;1Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000078 R-CHIP;1Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000078 R-CHIP;1Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000078 R-CHIP;1Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000078 R-CHIP;1Kohm,5%,1/10W,TP,1608 ..4...
  • Page 14 5. Exploded View & Part List ..4 R110 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4...
  • Page 15 5. Exploded View & Part List ..4 R110 2007-000239 R-CHIP;1.5Kohm,1%,1/10W,TP,1608 ..4 R110 2007-000309 R-CHIP;10ohm,5%,1/10W,TP,1608 ..4 R110 2007-000309 R-CHIP;10ohm,5%,1/10W,TP,1608 ..4 R110 2007-000309 R-CHIP;10ohm,5%,1/10W,TP,1608 ..4 R110 2007-000309 R-CHIP;10ohm,5%,1/10W,TP,1608 ..4 R110 2007-000309 R-CHIP;10ohm,5%,1/10W,TP,1608 ..4 R110 2007-000309 R-CHIP;10ohm,5%,1/10W,TP,1608 ..4 R110 2007-000309 R-CHIP;10ohm,5%,1/10W,TP,1608 ..4 R110 2007-000309 R-CHIP;10ohm,5%,1/10W,TP,1608 ..4...
  • Page 16 5. Exploded View & Part List ..4 RA302 2011-000002 R-NETWORK;22ohm,5%,1/16W,L,CHIP,8P,TP,32 ..4 RA303 2011-000002 R-NETWORK;22ohm,5%,1/16W,L,CHIP,8P,TP,32 ..4 RA306 2011-000651 R-NETWORK;10ohm,5%,1/16W,L,CHIP,8P,TP,32 ..4 RA307 2011-000651 R-NETWORK;10ohm,5%,1/16W,L,CHIP,8P,TP,32 ..4 RA304 2011-000686 R-NETWORK;56ohm,5%,1/16W,L,CHIP,8P,TP,3..4 RA305 2011-000686 R-NETWORK;56ohm,5%,1/16W,L,CHIP,8P,TP,3..4 RA400 2011-000881 R-NETWORK;33ohm,5%,1/16W,L,CHIP,8P,TP,3..4 RA401 2011-000881 R-NETWORK;33ohm,5%,1/16W,L,CHIP,8P,TP,3..4 RA402 2011-000881 R-NETWORK;33ohm,5%,1/16W,L,CHIP,8P,TP,3.
  • Page 17 5. Exploded View & Part List ..4 C120 2203-000257 C-CER,CHIP;10nF,10%,50V,X7R,TP,1608 ..4 C120 2203-000257 C-CER,CHIP;10nF,10%,50V,X7R,TP,1608 ..4 C120 2203-000257 C-CER,CHIP;10nF,10%,50V,X7R,TP,1608 ..4 C120 2203-000257 C-CER,CHIP;10nF,10%,50V,X7R,TP,1608 ..4 C120 2203-000257 C-CER,CHIP;10nF,10%,50V,X7R,TP,1608 ..4 C120 2203-000257 C-CER,CHIP;10nF,10%,50V,X7R,TP,1608 ..4 C120 2203-000257 C-CER,CHIP;10nF,10%,50V,X7R,TP,1608 ..4 C120 2203-000440 C-CER,CHIP;1nF,10%,50V,X7R,1608 ..4 C120 2203-000440 C-CER,CHIP;1nF,10%,50V,X7R,1608 ..4...
  • Page 18 5. Exploded View & Part List ..4 C120 2203-000975 C-CER,CHIP;47nF,10%,25V,X7R,TP,1608,- ..4 C120 2203-000975 C-CER,CHIP;47nF,10%,25V,X7R,TP,1608,- ..4 C120 2203-001071 C-CER,CHIP;0.056nF,5%,50V,C0G,1608 ..4 C120 2203-001607 C-CER,CHIP;0.22nF,5%,50V,NP0,1608 ..4 C120 2203-001652 C-CER,CHIP;470nF,+80-20%,16V,Y5V,1608 ..4 C120 2203-001652 C-CER,CHIP;470nF,+80-20%,16V,Y5V,1608 ..4 C120 2203-002793 C-CER,CHIP;1000nF,+80-20%,25V,Y5V,2012 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4...
  • Page 19 5. Exploded View & Part List ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C120 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C120 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4...
  • Page 20 5. Exploded View & Part List ..4 C120 2203-005437 C-CER,CHIP;10000nF,+80-20%,10V,Y5V,3216 ..4 C120 2203-006024 C-CER,CHIP;2200nF,10%,10V,X7R,2012 ..4 C120 2203-006024 C-CER,CHIP;2200nF,10%,10V,X7R,2012 ..4 C120 2203-006333 C-CER,CHIP;10000nF,20%,16V,X5R,TP,3216 ..4 C615 2402-001081 C-AL,SMD;100uF,20%,25V,WT,TP,8.3x8.3x10 ..4 C632 2402-001081 C-AL,SMD;100uF,20%,25V,WT,TP,8.3x8.3x10 ..4 C538 2402-001129 C-AL,SMD;47UF,20%,16V,WT,TP,6.3X5.2MM ..4 C558 2402-001129 C-AL,SMD;47UF,20%,16V,WT,TP,6.3X5.2MM ..4 C367 2402-001178 C-AL,SMD;10uF,20%,16V,WT,TP,4.3x4.3x5.8m ..4...
  • Page 21 ..4 T0010 BN27-00009A COIL CHOKE;SMD 12X12X6,EOS,33UH,15%,-,0..4 T0010 BN27-00009A COIL CHOKE;SMD 12X12X6,EOS,33UH,15%,-,0..4 T0077 BN41-00881A PCB MAIN;PEBBLE20W,19W,FR-4,4L,PCB1.0,1. S.N.A ..4 M0018 BN97-02196A ASSY MICOM;Pebble_MFM,LPM22CS,2232MW,MX2 S.N.A ..5 IC115 1107-001580 IC-FLASH MEMORY;MX25L4005,4Mbit,512Kx8Bi S.N.A ..4 R110 2007-000910 R-CHIP;43Kohm,1%,1/10W,TP,1608 ..4 R110 2007-001068 R-CHIP;6.8Kohm,1%,1/10W,TP,1608 ..4 R110 2007-001068 R-CHIP;6.8Kohm,1%,1/10W,TP,1608...
  • Page 22 ..4 BH68-00297E MANUAL FLYER-11,WARRANTY CARD;SAMSUNG BA S.N.A ..4 BH68-00297F MANUAL FLYER-10,WARRANTY CARD;ENVELOPE,S S.N.A ...3 BN63-01798A CLOTH-CLEAN;RE40**,CLOTH,180,200,RHCM S.N.A ...3 M0215 BN96-05691C ASSY MANUAL P-IB+QSG;2232MW,MOJO 80G,Syn S.N.A ..4 BN59-00625C S/W DRIVER-00,IB;2232MW,Syncmaster,CHINA S.N.A ..4 BN68-01276C MANUAL FLYER-QSG;2232MW,SyncMaster,Chine S.N.A T0074 BN59-00750A REMOCON;TM-85,38,PEBBLE,MFM,china M0113 BN92-03460A ASSY P/MATERIAL;LS22PMCSFV/XF...
  • Page 23 5. Exploded View & Part List Memo 5-18...

  • Page 24: Safety 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 25: 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 26: 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 27 1. Precautions Memo...

  • Page 28: Product Specifications

    2232MW Feature CE Friendly Design � IT + CE usage � 2232MW:High resolution(WSXGA+1680*1050),SD quality TV Analog Tuner, HDMI, Stereo, Nicam Sound support � Response Time 5ms G-to-G adopted � Video Input : PC (Analog, DVI), AV, S-Video, Component, HDMI �...

  • Page 29: Spec Comparison To The Old Models

    2. Product specifications 2-2. Spec Comparison to the Old Models Model Pebble (2232MW) Pebble (2232BW) Design Area China World Wide Panel M220Z1-L03 M220EW01 V2 Fast Response Time Contrast 1000 : 1 1000:1 Viewing Angle 85/85/80/80 (Left/Right/Up/Down) 85/85/80/80(Left/Right/Up/Down) Scart Jack Pebble_MFM,LPM22CS,2232MW,MX25L40...
  • Page 30 Warranty Card BH68-00297E (Not available in all locations) User’s Guide, Monitor Driver, BN59-00625C Natural Color Pro Software D-Sub(15 Pin) Cable BN39-00244G CHINA 3903-000082 Samsung Electronics Power Cord Service center HONGKONG 3903-000067 CHINA BN59-00750A Remote Control HONGKONG BN59-00596A Batteries (AAA X 2)

  • Page 31: Accessories (Sold Separately)

    Product Description Code. No Remark TV Antenna Cable (Coaxial Cable) RCA Cable (Video-Yellow, Audio-Red and White) Component (P , Y) Cable S-VIDEO Cable Samsung Electronics Service center Earphones/Headphones DVI to HDMI Cable HDMI Cable RCA to stereo (for PC) cable...

  • Page 32: Schematic Diagram

    7. Schematic Diagram 7. Schematic Diagram 7-1. Circuit Descriptions MPI3HDMI412FT  TMDS Switch Receive DVI or HDMI input, then send signals to scaler after switching DVI signal : video signal is sent to scaler HDMI signal : video and sound signal are sent to scaler Scaler TMDS Switch DVI / HDMI...
  • Page 33 7. Schematic Diagram MST67889  MSTAR Scaler IC NTSC/PAL/SECAM Video decoder Multi-Standard TV Sound Decorder Support OSD, PIP, Micom, Image enhancer and 3-D Comb filter LVDS Scaler TMDS Switch Video COMPONENT DVI / HDMI I 2 C DATA PC, DVI, HDMI Address S-video Y/C, CVBS MST67889...
  • Page 34 7. Schematic Diagram M13S128168  128Mbit DDR Memory Scaler data backup Scaler MST67889 M13S128168 DATA IC301 Address...
  • Page 35 7. Schematic Diagram TDA7266D  Audio Amp. Receive sound signals from scaler, then send signals to speaker after amplifying LM4810MM  Audio Amp. Amplify sound signals, then send signals to headphone Scaler Headphone Speaker MST67889 MUTE Amp. MST67889 TDA7266 Speaker L / R IC500 Loud L / R LM4810MM...

  • Page 36: Schematic Diagrams

    7. Schematic Diagram 7-2. Schematic Diagrams 7-2-1. Power...
  • Page 37 7. Schematic Diagram...
  • Page 38 7. Schematic Diagram...
  • Page 39 7. Schematic Diagram 7-2-2. PC Input...
  • Page 40 7. Schematic Diagram 7-2-3. DVI / HDMI Input...
  • Page 41 7. Schematic Diagram 7-2-4. DDC 7-10...
  • Page 42 7. Schematic Diagram 7-2-5. TMDS Switch PI3HDMI412FT 7-11...
  • Page 43 7. Schematic Diagram 7-2-6. Component / Ext. (RGB) 7-12...
  • Page 44 7. Schematic Diagram 7-2-7. AV / S-Video 7-13...
  • Page 45 7. Schematic Diagram 7-2-8. Tuner 7-14...
  • Page 46 7. Schematic Diagram 7-2-9. Scaler MST67889 7-15...
  • Page 47 7. Schematic Diagram 7-2-10. Audio Processor TDA7266 7-16...
  • Page 48 7. Schematic Diagram 7-2-11. Audio AMP 7-17...
  • Page 49 7. Schematic Diagram 7-3. Schematic Diagram This Document can not be used without Samsung’s authorization. 7-19...
  • Page 50 7. Schematic Diagram - This Document can not be used without Samsung’s authorization. 7-20...
  • Page 51 7. Schematic Diagram - This Document can not be used without Samsung’s authorization. 7-21...
  • Page 52 7. Schematic Diagram - This Document can not be used without Samsung’s authorization. 7-22...
  • Page 53 7. Schematic Diagram - This Document can not be used without Samsung’s authorization. 7-23...
  • Page 54 7. Schematic Diagram Memo 7-24...
  • Page 55 7. Schematic Diagram 7-2-12. Function / LVDS / EEPROM 7-18...
  • Page 56 4. Troubleshooting 4. Troubleshooting 4-1. Troubleshooting Before troubleshooting, setup the PC ‘s display as below. • Resolution: 1680*1050 • H-frequency: 65 kHz • V-frequency: 60 Hz If no picture appears, make sure the power cord is correctly connected. Check the following circuits. •...

  • Page 57: No Power

    4. Troubleshooting 4-2. No Power When turning on the Power button after connecting the power, the LED at the front of the Symptom monitor does not operate. Check whether the Power Switch at the back of the monitor is turned on. Check the IP board power fuse and the IP board output power.
  • Page 58 4. Troubleshooting 4-2-1. Circuit diagrams and waveforms when the power does not turn on...

  • Page 59: No Video (Analog)

    4. Troubleshooting 4-3. No Video (Analog) Symptom Though the LED power turns on, the screen is blank when connecting the VGA cable. Check the D-sub cable connections. Major Check whether the LVDS cable is connected correctly to the panel. checkpoints Check whether the lamp connector of the panel is connected correctly to the IP board.
  • Page 60 4. Troubleshooting 4-3-1. Circuit diagrams and waveforms (Analog) when no screen is displayed on the monitor...

  • Page 61: No Video (Dvi)

    4. Troubleshooting 4-4. No Video (DVI) Symptom The LED power turns on but the screen is blank when the DVI cable is connected. Check the DVI cable connections. Major Check whether the LVDS cable is connected correctly to the panel. checkpoints Check whether the lamp connector of the panel is connected correctly to the IP board.
  • Page 62 4. Troubleshooting 4-4-1. Circuit diagrams and waveforms (DVI) when no screen is displayed on the monitor...

  • Page 63: No Video (Hdmi)

    4. Troubleshooting 4-5. No Video (HDMI) Symptom The LED power turns on but the screen is blank when the HDMI cable is connected. Check the HDMI cable connections. Major Check whether the LVDS cable is connected correctly to the panel. checkpoints Check whether the lamp connector of the panel is connected correctly to the IP board.
  • Page 64 4. Troubleshooting 4-5-1. Circuit diagrams and waveforms (DVI) when no screen is displayed on the monitor...

  • Page 65: Faults And Corrective Actions

    4. Troubleshooting 4-6. 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 66 4. Troubleshooting 4-7. Adjustment 4-7-1. Entering Service Mode with Remote Control Entering Service Mode Power Off INFO MENU Power On MUTE INFO FACTORY (Using factory remocon) 4-7-2. Service Mode Menu PC Auto Color  PC analog Only ( 1024X768 @60 16gray pattern) Color control operates normally only in certain modes of certain patterns, but in other cases, the operation may distort color.
  • Page 67 4. Troubleshooting Video Part  Menu for adjusting the white Balance. Audio Part  Menu for adjusting audio setting. Adjust  Menu for color control. But excessive setting may saturate the color. Extreme caution needed.!! 4-12...

  • Page 68: Panel Information

    4. Troubleshooting Options  Menu for adjusting options. Panel Information  Menu for check panel lifespan. Checksum & Reset  CHECKSUM Check the version and date of MICOM Reset : Factory Reset Initialize the settings of service menu Preset EEPROM Initialize the settings of EEPROM 4-13...
  • Page 69 Connect to computer printer port Connect to monitor to be upgraded DDC file name 2232MW: SM2232MWA/SM2232MWD/SM2232MWH You must enter service mode to enter DDC : Release DDC Protection Open file Select port 1(D-SUB) / Select port 2(DVI) / Select port 3(HDMI)
  • Page 70 4. Troubleshooting Press enter after entering the serial number of the monitor After analog input, repeat 2~5 times for DVI/HDMI input 4-15...

  • Page 71: Program Upgrading

    4. Troubleshooting 4-8 Program Upgrading Connect the parallel port (printer port) of the PC with the D-SUB cable of the monitor to be upgraded. Connect to computer printer port Connect to monitor to be upgraded Copy ISP_Tool Program in your desktop PC. In your PC,run ISP_Tool.exe You can see the window of this software as below.
  • Page 72 4. Troubleshooting 1. Click the Connect button for connect the PC to the monitor. 2. Click the Connect button for connect the PC to the monitor. 3. Click the Read button to read the program you want to download into the monitor. 4.
  • Page 73 4. Troubleshooting 5. Click Auto button 6. Cllick Run button,then the program can be downloaded into the monitor. 7. If you see Pass message, program download is completed Must Dos after change the Board  Main Board Check the adjusted PC color status DDC Input ( Analog, Digital and HDMI ) Reset after entering the service mode Service mode : Power off ->...

  • Page 74: Wiring Diagram

    6. Wiring Diagram 6. Wiring Diagram 6-1. Wiring Diagram - Main Board Power Connector Connect with IP board LVDS Connector HDCP connector 4P (Connect with panel) (Download HDCP key) Audio R/ L , Component S-Video PC Stereo Audio R/L , AV PC Analog RF ANT.

  • Page 75: Wiring Diagram - Ip Board

    6. Wiring Diagram 6-2. Wiring Diagram - IP Board Power Connector 9P (Connect with MAIN board) Lamp Connector (Connect with panel inverter – left top of panel rear) Lamp Connector (Connect with panel inverter – left bottom of panel rear) AC Power socket...

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