Zenith DVD5201 Service Manual page 24

5. RF/Servo Circuit
A.
CHECK POINT(General)
YES
YES
Does
TT L pulse output to
IC201 Pins 140, 142?
YES
Is IC201
Pins 83, 84, 88, 89 voltage
about 2.2V?
YES
END
VR166 - 923-03461
ELECTRICAL
NO
NO
Check "2.Micro Circuit
NO
33.8688MHz clock input
to IC201 Pin 63?
Replace IC201
(IC206 soldering or IC defect).
NO
Check power circuit.
24
Does
NO
YES
Replace X201 or IC206
(30MHz clock defect)
DVD2 - SERVICING