Read Sony KD-55X9000A Service Manual online
Backlight doesn’t change
when ambient lighting
level changed
when ambient lighting
level changed
Check UI setting for light
sensor .
Make sure it is “on”
sensor .
Make sure it is “on”
ok
Check current Software
Change B* Board
Update Software
NG
Change the UI
setting to “:ON”
setting to “:ON”
Check whether harness is
Connected on HIF and
Connected on HIF and
HSF Board
Connect the Harness
properly
Check whether harness
is
Connected on HSF and
is
Connected on HSF and
B Board
NG
NG
ok
ok
ok
NG
NG
Change Smart
Core
Core
Problem with Smart Core
HSF or HIF
or HSF‐HIF harness
OK
Change
HSF-B* board Harness
HSF-B* board Harness
HSF‐B* board harness
problem
OK
3) Light Sensor Error
KD-55/65X9000A(CH)
123
TROUBLE SHOOTING
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