4-11
4. Troubleshooting
4-1-6. No Sound
Symptom
Audio is normal but no picture is displayed on the screen.
-
Major
checkpoints
Check the RF Source
Check the SDP83(CHELSEA)
This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected.
-
-
-
Diagnostics
1
No
Check a connection harness and
headphone jack./Side AV
Check Sound Processor
IC2002 (STA339BWS)
No
Picture is display, no sound.
Check a B12V Line.
Change a main PCB ass’y.
No
Does the signal appear at pin
#27, #28, #29, #30(MCLK, BCLK,
LRCLK, DATA) of IC2002?
Check the DC 12V
BD2005 of IC2002?
Please, Contact Tech support.
No
Does the signal appear at
Pin #13 ,#10 (CH1_L,R Sound) And
Pin #9, #6 (CH2_L,R) of IC2002?
Replace the speaker ass’y?
Yes
Connect a sound cable.
control a volume.
Yes
1
Yes
3
Yes
1
Caution
Make sure to disconnect the power before working on the IP board.
Содержание LN32B550K1M
Страница 7: ...1 4 1 Precautions Memo ...
Страница 31: ...4 4 4 Troubleshooting WAVEFORMS 1 R G B Output Signal PC_R Signal PC_G Signal PC_B Signal ...
Страница 33: ...4 6 4 Troubleshooting WAVEFORMS 1 Signal of HDMI Data 2 Digital Output Data ...
Страница 37: ...4 10 4 Troubleshooting WAVEFORMS 1 AV_CVBS Output Signal ...
Страница 39: ...4 12 4 Troubleshooting WAVEFORMS 1 I2C Data 3 Speaker out ...
Страница 66: ...4 39 4 Troubleshooting 5 Press 0 6 Save latest BSP images to update folder in usb memory ...
Страница 67: ...4 40 4 Troubleshooting 7 Enter bbm usb after connecting usb memory 8 Press 1 ...
Страница 68: ...4 41 4 Troubleshooting 9 Enter u boot bin 10 Press x to return prompt menu ...
Страница 359: ...6 5 6 Wiring Diagram 6 2 Wiring Picture ...