Aiwa HV-FX4100k Service Manual page 33

AUTO TRACKING DOES
NOT OPERATE
By manual tracking,
does the DC level at pin 84
of IC4001 change ?
Yes
In auto tracking, is the
voltage at pin 6 of IC1002
more than DC 1V ?
Yes
Replace IC1002.
TROUBLESHOOTING GUIDE
No
Does the CTL PULSE
No
(about 4.6Vp-p) appear at
pin 97 of IC1002?
E-10
No
Yes
Check CYLINDER UNIT.
Check CONTROL HEAD.