Service manual

33
XV-Z90U
DT-200
» Formatter Unit Troubleshooting-2/2
No
IC9301 or its peripheral
circuit defective.
Is there 60-MHz pulse
signal at TP9025?
Is the voltage at pin (1)
of the P2002 main PWB
at high level?
IC2007, IC2002 or their
peripheral circuit
defective.
Is the P2002 connector
properly connected?
No
Is the specified voltage
applied to the CN7004
connector?
Yes
Yes
Is the fan running?
Check the ballast unit and
power unit.
Check the fan circuit.
Yes
No
No
1 2