LCD-Monitor Chassis : LS19PMA PEBBLE LS20PMA Model : 932MW 2032MW 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 932MW / 2032MW Refer to the service manual in the GSPN (see the rear cover) for the more information.
CE Friendly Design � IT + CE usage � 932MW: High resolution (WXGA + 1440X900), SD quality TV 2032MW: High resolution (WSXGA + 1680X1050), SD quality TV Analog Tuner, HDMI, Stereo, Nicam Sound support � Response Time 5ms G-to-G adopted �...
2. Product specifications 2-2. Spec Comparison to the Old Models Model Pebble (932MW) Pebble (932GW) Design Area Europe World Wide Panel LTM190M2-L31 Fast Response Time Contrast 1000 : 1 Viewing Angle 80/80/80/80 (Left/Right/Up/Down) Scart Jack Micom Scaler Model Pebble (2032MW)
Quick Setup Guide BN68-01276A Warranty Card BH68-00633A (Not available in all locations) User’s Guide, Monitor Driver, BN59-00625A Natural Color Pro Software D-Sub(15 Pin) Cable BN39-00244B Samsung Electronics Service center Power Cord 3903-000042 Remote Control BN59-00596A Batteries (AAA X 2) 4301-000121...
Ccde. 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-D Cable BN39-00246F DVI to HDMI cable HDMI Cable RCA to stereo (for PC) cable...
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5. Exploded View & Part List 5. Exploded View & Part List 5-1. Exploded View...
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5. Exploded View & Part List 5-1-1. LS19PMASF/EDC Parts List Location No. Code No. Description & Specification Q’ty SA/SNA Remark T0003 BN96-05678A ASSY COVER P-FRONT;LS19PE,MFM,ABS HB,BK2 M0215 BN07-00351A LCD-PANEL;LTM190M2-L31,Haydn,6bit Hi-FRC M0174 BN44-00177B IP BOARD;SIP-1920,PEBBLE 19” MFM,3.0 ~5. M0014 BN94-01366A ASSY PCB MAIN-STZ;LS19PMASF/EDC S.N.A T0514 BN61-03302A...
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.
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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.
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 HDMI RF ANT.
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...
4. Troubleshooting 4-1. Troubleshooting Before troubleshooting, setup the PC ‘s display as below. • Resolution 932MW: 1440 × 900 2032MW: 1680 x 1050 • H-frequency: 64 kHz • V-frequency: 60 Hz If no picture appears, make sure the power cord is correctly connected.
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.
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4. Troubleshooting 4-2-1. Circuit diagrams and waveforms when the power does not turn on...
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.
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4. Troubleshooting 4-3-1. Circuit diagrams and waveforms (Analog) when no screen is displayed on the monitor...
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.
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4. Troubleshooting 4-4-1. Circuit diagrams and waveforms (DVI) when no screen is displayed on the monitor...
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.
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4. Troubleshooting 4-5-1. Circuit diagrams and waveforms (DVI) when no screen is displayed on the monitor...
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.
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.
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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...
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...
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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 DDC file name 932MW: SM932MWA/SM932MWD/SM932MWH 2032MW: SM2032MWA/SM2032MWD/SM2032MWH You must enter service mode to enter DDC : Release DDC Protection Open file...
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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...
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 winDDC_V2-16_02 Program in your desktop PC. In your PC, run WinDDC.exe file 4-16...
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4. Troubleshooting 1. Select several options as this 2. Click the “LoadFile” button for selection of micom program file 3. Select the micom program that is hex format file 4-17...
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4. Troubleshooting 4. Check the OK message 5. Press Auto Program button 6. If you see OK 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 ->...
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...
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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 EXT.(RGB) I 2 C EM6A9160 (DDR) DATA PC, DVI, HDMI Address...
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7. Schematic Diagram M13S128168 128Mbit DDR Memory Scaler data backup Scaler MST67889 M13S128168 DATA IC301 Address...
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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 M13S128168 Speaker L / R IC301 Loud L / R M13S128168...