Light Sensor Error - Sony KD-55X8500A Service Manual

3-7. LIGHT SENSOR ERROR

Backlight doesn't change
when ambient lighting h bi li h i
level changed
KD-55/65 X8500A/ X8504A
Change the UI
setting to ":ON" i
OK
Check UI setting for light
sensor .
Make sure it is "on"
Change B* Board Ch B* B d
Update Software Update Software
NG
Ch k Check current Software S f
OK
Ch k h th h Check whether harness is i
Connected on HIF and
HSF Board
OK
Check whether harness is
Connected on HSF and
B Board
OK
Change Smart Core
NG
Change
HSF-B* board Harness
NG
TROUBLE SHOOTING
NG NG
Connect the Harness
properly
NG
Problem with Smart Core
OK
HSF or HIF
or HSF‐HIF harness or HSF HIF harness
OK
HSF‐B* board harness
problem
117