TROUBLESHOOTING GUIDE
E-25
Is FG output level at pin
3 of CP1005 5Vp-p?
No
Yes
Replace CYLINDER UNIT.
Replace IC1006.
No
Yes
Replace CYLINDER UNIT.
PLAYBACK PICTURE JITTERS
HORIZONTALLY
AUTO TRACKING DOES NOT
OPERATE
By manual tracking, does
the DC level at pin 19 of
IC1006 change?
Yes
No
In auto tracking, is the
voltage at pin 19 of IC1006
more than DC0.7V?
Yes
No
Replace IC1006.
Yes
No
Check CONTROL HEAD.
1.0Vp-p
Does the CTL PULSE
(about 1.0Vp-p) appear at
pin 6 of IC1006?
Check YCA, H/AMP circuit and
CYLINDER UNIT.
Is the voltage at pin 5 of
CP1005 1.2V?