Sharp VT-3418X - Page 57

CAPSTAN SERVO TROUBLESHOOTING
I
Capstan servo does not function.
I
Fr OW CHART NO. l-12
t
Does PB CTL SI
P
nal
appear at pin 62) of
YES
ICB801 7
I
+NO
I’ll
+NO
Is the harness EO-MR
NO
Replace the harness EO-
normal ?
-
MR.
I
t YES
m/j\
$ YES
pzG+Kzj
J
Replace IC8801.
$ YES
Check the composite
sync. slgnal line and pin
(1) of connector El from
Y/C circuit.
I
Check “@I’.
I