Service manual

TROUBLESHOOTING GUIDE
E-6
5V
Change
CYLINDER MOTOR.
Change IC3001.
Change CYLINDER MOTOR.
YES
YES
NO
NO
AT PLAY, THE PICTURE
JITTERS VERTICAL MINUTELY
Is FG wave of CP3001
at pin 11 5V ?
Is pin 12 of CP3001 2.6V ?
AUTO TRACKING
DOES NOT OPERATE
2.5Vp-p
YES
YES
NO
NO
In auto tracking, is the
voltage at pin 24 of IC3001
more than DC 0.2V ?
Does the CTL pulse
signal (about 2.5Vp-p)
appear at pin 7 of IC3001.
Check CONTROL HEAD.
Change IC3001.