Sharp XV-Z200U/E Service Manual page 35

Checking of Sync Signal
Is the horizontal synchronized
signal on pin (6) of IC5001?
Yes
Is the vertical synchronized signal
on pin (6) of IC5002?
Yes
Is the synchronized signal is
outputted from IC5009, IC5005,
IC5006, IC5007 and IC5008?
Yes
Is the vertical synchronized signal
on pin (31) of IC6004?
Yes
Is the horizontal synchronized
signal on pin (30) of IC6004?
Yes
Is the vertical synchronized signal
on pin (64) of IC6004?
Yes
Is the horizontal synchronized
signal on pin (66) of IC6004?
Yes
Are the timing of both vertical and
horizontal synchronized signals
correct?
No
Is the signal generator (input
source) correct?
Yes
IC8001 and its periphery is
defective.
No
No
Check the PWB of the signal input
part.
No
Check each IC and the peripheral
circuit of IC.
No
No
Check IC6001, IC6002 and IC
peripheral circuits.
No
No
Failure of IC6004 and IC
peripheral circuit.
Yes
The sync signal is normal.
End of checking.
No
Set the signal source appropriately.
35
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XV-Z200U/E, XV-Z201E
DT-300