JVC HR-XV1EU-R Service Manual page 44

TROUBLESHOOTING GUIDE
At play,the picture
jitters vertical minutely
Is FG wave of CP3001
NO
Change
at pin 11 5V?
CYLINDER MOTOR.
5V
YES
NO
Is pin 12 of CP3001 2.5V?
Change IC3001.
YES
Change CYLINDER MOTOR
Auto tracking
does not operate
Does the CLT pulse
In auto tracking, is the
NO
NO
signal (about 2.5Vp-p)
Check CONTROL HEAD.
voltage at pin 8 of IC3001
appear at pin 97 of IC3001?
more than DC 0.2V?
2.5Vp-p
YES
YES
CHANGE IC3001.
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