Sharp XV-Z12000 Anleitung Seite 52

XV-Z12000
Check the VIDEO
synchronization signal.
Is a vertical synchronization
signal present at TL8140?
YES
Is a horizontal synchronization
signal present at TL8142?
YES
The VIDEO synchronization
signal is normal.
Is the input signal 525iRGB
(or component)?
NO
Is the input signal composite
VIDEO (CVBS)?
NO
Is the input signal S-VIDEO?
NO
NO
Is a clock signal (20.25 MHz)
present at TL8002?
NO
Is a video signal present at
TL8138?
YES
Is a video signal present at pin
(74) of IC8338?
Check the peripherals of pin
(74) of IC8338.
The main unit is defective.
YES
Is a video signal present at pin
(73) of IC8338?
Check the peripherals of pin
(73) of IC8338.
The main unit is defective.
YES
Is a video signal present at pin
(72) of IC8338?
Check the peripherals of pin
(72) of IC8338.
The main unit is defective.
52
NO
X8006 or IC8338 is defective.
YES
YES
YES
NO
YES
NO
YES
NO
IC8338 is defective.
IC8338 is defective.