TROUBLESHOOTING GUIDE
E-4
GOOD PICTURE BUT NO SOUND
Yes
No
Yes
No
Insert CD352.
Check Sound+B line and
peripheral circuit.
Check IC353, speaker and
Headphone jack.
Yes
No
Is CD352 inserted?
Is the voltage at pin 1
of IC353 DC 6.6V ?
Q301 normal?
Check Q301 and A_MUTE line .
Yes
Is the voltage at pin 5
of IC353 DC 3.9V ?
Check TV_POWER_H line and
peripheral circuit.
No
Yes
Is the AUDIO OUT
signal at pins 4 and 10 of
IC353?
Check AUDIO_OUT_R,
AUDIO_OUT_L line
and peripheral circuit.
No
Summary of Contents for VTW21FQR
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