4-19
4. Troubleshooting
4-1-8. No Video (S-Video 1, 2)
Symptom
Audio is normal but no picture is displayed on the screen.
-
Major
checkpoints
Check the S-Video source
Check the MT5382
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
-
-
-
Diagnostics
Check CN901B or Side-AV
Change the main PCB ass’y or
Side-AV assembly
No
Yes
Power Indicator is off.
Lamp on, no video
Yes
Check the video source and
check the connection of
video cable?
No
Input a video signal.
Check the connected cable.
Yes
Check the LVDS cable?
Replace the LCD panel?
Please, Contact 1 800 Samsung
No
Does the digital data appear at output
of R721~R740,R788~R791?
No
Check IC400
Change the main PCB assembly
9
6
Does the signal appear
at C706, C707 (Y, C) of IC400?
Yes
Does the digital data appear at output
of R1109, R1110, R1113P, R1114P,
R1116P, R1120P, R1122~R1128,
R1133, R1135, R1137P~R1141P,
R1143~R1150?
No
Check IC400
Change the main PCB assembly
7
Yes
Caution
Make sure to disconnect the power before working on the IP board.
Содержание LN32A550P3F
Страница 7: ...1 4 1 Precautions Memo ...
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Страница 165: ...4 6 4 Troubleshooting WAVEFORMS 1 2 PC Input V Sync H Sync 3 LVDS Out CLK ...
Страница 167: ...4 8 4 Troubleshooting WAVEFORMS 4 5 HDMI Input CLK 6 Tuner CVBS Out Pattern Grey Bar 7 TS DATA Out Clk Data 0 ...
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Страница 170: ...4 11 4 Troubleshooting WAVEFORMS 6 Tuner CVBS Out Pattern Grey Bar 7 TS DATA Out Clk Data 0 8 Eagle Out Clk H Sync ...
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Страница 173: ...4 14 4 Troubleshooting WAVEFORMS 6 Tuner CVBS Out Pattern Grey Bar 7 TS DATA Out Clk Data 0 8 Eagle Out Clk H Sync ...
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Страница 176: ...4 17 4 Troubleshooting WAVEFORMS 6 Tuner CVBS Out Pattern Grey Bar 7 TS DATA Out Clk Data 0 ...
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Страница 179: ...4 20 4 Troubleshooting WAVEFORMS 6 Tuner CVBS Out Pattern Grey Bar 7 TS DATA Out Clk Data 0 9 S VIDEO Input Y C ...
Страница 180: ...4 21 4 Troubleshooting ...
Страница 182: ...4 23 4 Troubleshooting WAVEFORMS 6 Tuner CVBS Out Pattern Grey Bar 7 TS DATA Out Clk Data 0 0 Component Input Y Pb ...
Страница 183: ...4 24 4 Troubleshooting ...
Страница 185: ...4 26 4 Troubleshooting WAVEFORMS Audio Input Sign Wave 12S Input Clk Data Audio Amp Out Sign Wave ...
Страница 186: ...4 27 4 Troubleshooting ...
Страница 197: ...4 38 4 Troubleshooting Memo ...
Страница 201: ...6 4 6 Wiring Diagram Memo ...