Aiwa HV-FX5100 service manual Troubleshooting Guide, E-12

TROUBLESHOOTING GUIDE

PLAYBACK PICTURE JITTERS

VERTICALLY

No

Does tracking noise appear in the picture ?

Yes

By adjusting the manual

tracking UP/DOWN No buttons, will the noise disappear in the picture ?

Yes
Are GUIDE POSTS	No
the right height ?
Yes
Is PG SHIFTER	No
adjustment 6.5H ?
Yes
	Yes

Is PB-Y waveform normal ?

No

Check PB-Y circuit.

Check P/B ENVELOPE.

Adjust GUIDE POST height.

Adjust PG SHIFTER.

Replace IC1002.

E-12