5 Troubleshooting
5-5
Does the signal appear at
Pin 110 (Tuner sound signal)
and Pin 113, 114 (VCR sound)
and Pin 115, 116 (DVD) Pin 117,
118 (PC) of IC802 (VCTj)?
(RF) Check Tu01 (TV Tuner).
(Video) Check the CN913.
(DVD) Check the CN901.
Yes
Does the signal appear at Pin
123, 124 of IC802 (VCTj)?
Check IC802.
Yes
Does the signal appear
at Pin 2, 5 of Pin 16, 19 IC600?
Check the IC600 (Audio amp)
and related circuit of IC600.
Yes
Replace the speaker.
5-3 No Sound
No
No
No
Summary of Contents for LA20S51B
Page 10: ...4 Alignments and Adjustments 4 3 ...
Page 11: ...4 Alignments and Adjustments 4 4 ...
Page 13: ...4 2 4 Calibration 4 Alignments and Adjustments 4 6 ...
Page 16: ...5 Troubleshooting 5 3 WAVEFORMS 1 2 5 3 6 4 4 7 8 ...
Page 20: ...8 Block Diagrams 8 2 8 2 Input Power Block Diagram ...
Page 22: ...9 1 9 Schematic Diagrams 9 Wiring Diagram ...
Page 24: ...11 Schematic Diagrams 11 2 1 2 5 3 6 4 7 8 11 Schematic Diagrams 9 ...
