4-25
4. Troubleshooting
4-1-10. No Sound
Symptom
Video is normal but there is no sound..
-
Major
checkpoints
When the speaker connectors are disconnected or damaged.
When the sound processing part of the Main Board is not functioning.
Speaker defect..
-
-
-
Diagnostics
Check IC400 or Side-AV.
Change the main PCB ass’y or
side-AV assembly
No
Yes
Picture is display, no sound.
Yes
Check component source and
check the connection of
component cable?
No
Input a component 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
#27~#30 (Mclk, Sclk, LRclk, data)
of IC1203?
No
Check IC1203
Change the main PCB assembly
@
Does the signal appear at
C762~C771 of IC400?
Yes
Does the signal appear at
L1201, L1202 (L/R output)?
No
Check IC1203
Change the main PCB assembly
#
Yes
!
Caution
Make sure to disconnect the power before working on the IP board.
Содержание LN32A550P3F
Страница 7: ...1 4 1 Precautions Memo ...
Страница 162: ...4 3 4 Troubleshooting ...
Страница 163: ...4 4 4 Troubleshooting ...
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 ...
Страница 168: ...4 9 4 Troubleshooting ...
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 ...
Страница 171: ...4 12 4 Troubleshooting ...
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 ...
Страница 174: ...4 15 4 Troubleshooting ...
Страница 176: ...4 17 4 Troubleshooting WAVEFORMS 6 Tuner CVBS Out Pattern Grey Bar 7 TS DATA Out Clk Data 0 ...
Страница 177: ...4 18 4 Troubleshooting ...
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 ...