TROUBLESHOOTING GUIDE
E-10
D-VR4SU/D-VR4SC
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.