Sharp 13VT-L200 - Page 52

52
13VT-L200
SOUND PLAYBACK MODE TROUBLESHOOTING FLOW CHART NO.1-17
No playback.
YES
YES
YES YES
YES YES
NO NO
NO
NO
NO NO NO
Is there a signal at pin (74) of IC2201?
Is there "L" level at pin (72) of IC2201? Is there a signal at pin (85) of IC2201?
Check BIAS CTL (H) line.
Replace defective parts.
Readjust azimuth and height.
Replace A/C head.
Check AUDIO MUTE (H) line.
Replace IC2201.
Is there "L" level at pin (70) of IC2201?
Are azimuth and height of the A/C head properly adjusted?
Check line between pin (85) of IC2201 and pin (1) of IC402.
Are the FFC MH-AA and the PB AMP's peripheral parts around pins (75)~(78) of IC2201 normal?
Clean A/C head.