Read Sony KD-55X8500A Service Manual online
TROUBLE SHOOTING
3-5. SIDE BUTTONS MALFUNCTION
HUS button
malfunction
malfunction
Check Harness on HUS and
B* Board properly connected
Check Harness pin Assignment
According to circuit.
According to circuit.
OK
Probe at Key_AD line and
check the signal
check the signal
Change HUS
NG?
OK
OK
Change B* Board
NG
NG
Loose harness
connect properly
connect properly
Change Harness
g
connect properly
115
KD-55/65 X8500A/ X8504A
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