Aiwa HV-GX950 K Service Manual page 35

PLAYBACK PICTURE JITTERS
VERTICALLY
No
Does tracking noise
appear in the picture ?
Yes
By adjusting the manual
tracking UP/DOWN
buttons, will the noise
disappear in the picture ?
Yes
Are GUIDE POSTS
the right height ?
Yes
Is PG SHIFTER
adjustment 6.5H ?
Yes
Is PB-Y waveform normal ?
No
Check PB-Y circuit.
TROUBLESHOOTING GUIDE
No
No
No
Yes
E-12
Check P/B ENVELOPE.
Adjust GUIDE POST height.
Adjust PG SHIFTER.
Replace IC1002.