4-22
4. Troubleshooting
4-1-9. 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 CN5002(COMP), CN5011
(PC, DVI), CN7005(AV), JA3201_
EU(SCART) Change the Main Assy
No
Yes
Does the B12VS_PW
appear at TP2007~8?
No
Yes
Check the source and
check the connection of sound cable
(Comp/PC/DVI to HDMI).
Yes
Change the Main Assy
Does the sound data appear at
CN5002(COMP), CN5011(PC, DVI),
CN7005(AV), JA3201_EU(SCART)?
No
Input the sound source properly.
Yes
Replace speaker
Please, Contact Tech support
No
Does the sound data appear at
TP - L-, L+, R-, R+?
No
Check IC4010 (Saturn4)
Check IC9002 (Sound AMP)
Change the Main Assy
7
Caution
Make sure to disconnect the power before working on the IP board.
Summary of Contents for LE32B53 SERIES
Page 22: ...4 5 4 Troubleshooting PC RGB HV sync LVDS MAINBOARD B ...
Page 23: ...4 6 4 Troubleshooting WAVEFORMS 1 PC input V sink H sink R G B 2 LVDS output ...
Page 25: ...4 8 4 Troubleshooting HDMI3 HDMI2 HDMI1 MAINBOARD T ...
Page 26: ...4 9 4 Troubleshooting WAVEFORMS 3 HDMI input RX_Data RX_Clk 2 LVDS output ...
Page 28: ...4 11 4 Troubleshooting B5V_VCCT_PW B3 3V_PW TUNER_CVBS MAINBOARD T ...
Page 29: ...4 12 4 Troubleshooting WAVEFORMS 4 CVBS OUT Grey Bar 2 LVDS output ...
Page 31: ...4 14 4 Troubleshooting B5V_VCCT_PW B3 3V_PW B1 2V_PW TS DATA MAINBOARD T ...
Page 32: ...4 15 4 Troubleshooting WAVEFORMS 2 LVDS output ...
Page 34: ...4 17 4 Troubleshooting AV2_CVBS MAINBOARD B ...
Page 35: ...4 18 4 Troubleshooting WAVEFORMS 4 CVBS OUT Grey Bar 2 LVDS output ...
Page 37: ...4 20 4 Troubleshooting Pr Pb Y MAINBOARD B ...
Page 38: ...4 21 4 Troubleshooting WAVEFORMS 5 Compnent_Y Gray scale Pb Pr Color bar 2 LVDS output ...
Page 41: ...4 24 4 Troubleshooting WAVEFORMS 6 I2C Data 7 Speaker out ...
Page 60: ...4 43 4 Troubleshooting 4 9 PCB diagram 4 9 1 PCB layout FHD 32 37 40 46 MAIN BOARD ...
Page 61: ...4 44 4 Troubleshooting 4 9 2 Main TOP 4 9 3 Main Inner 2 ...
Page 62: ...4 45 4 Troubleshooting 4 9 4 Main Inner 3 4 9 5 Main Bottom ...