Read Sharp XV-Z12000 (serv.man12) Service Manual online
49
XV-Z12000
Is the signal generator (input
source) set correctly?
source) set correctly?
NO
YES
YES
Is a composite synchronization
signal present at R8981?
signal present at R8981?
NO
Is a composite synchronization
signal with the correct timing
being output to TL8136?
signal with the correct timing
being output to TL8136?
Is a video signal present at pin
(17) of IC8367?
(17) of IC8367?
The SOG circuit is normal.
The IC8325 peripheral circuit is
defective.
defective.
The SOG circuits (IC8371 and
Q8022 - 23) are defective.
Q8022 - 23) are defective.
NO
The IC8367 peripheral circuit is
defective or the main unit is
defective.
defective or the main unit is
defective.
Check the SOG circuit.
NO
Set the signal generator (input
source) correctly.
source) correctly.
YES
YES
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