Read Sony KD-55X8500A (serv.man2) Service Manual online
KD-55X8500A/65X8500A(CH)
117
TROUBLE SHOOTING
Backlight doesn’t change
when ambient lighting
level changed
Check UI setting for light
sensor .
Make sure it is “on”
OK
Check current Software
Change B* Board
Update Software
NG
Change the UI
setting to “:ON”
Check whether harness is
Connected on HIF and
HSF Board
Connect the Harness
properly
Check whether harness is
Connected on HSF and
B Board
NG
NG
OK
OK
OK
NG
NG
Change Smart Core
Problem with Smart Core
HSF or HIF
or HSF-HIF harness
OK
Change
HSF-B* board Harness
HSF-B* board harness
problem
OK
3-7. LIGHT SENSOR ERROR
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