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5 Troubleshooting
5-4 No Sound
Does the signal appear at
Pin 67 (Tuner sound signal) and
Pin 57, 56 (PC sound) and Pin 51, 50
(VCR sound) and Pin 48, 47 (Scart
sound) of IC 700 (MSP3451)?
Yes
Does the signal appear at Pin 27,
28 of IC700 (MSP3451)?
Yes
Does the signal appear
at L702 ~L705?
Yes
Replace the speaker.
5-4
Check the CN803 (PC conector) and the
No
CN802 (VCR connector) and the CN200
(Scart connector and the CN806 (Tuner).
No
Check the IC700 and
related circuit of IC700.
No
Check the IC702 (Audio amp) and
related circuit of IC702.
ES15A*/ES17A*
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