Read Sony KDL-65W850A / KDL-65W855A Service Manual online
3-7-2. Light Sensor Error
Update Software
Change the UI
setting to “:ON”
NG
Backlight doesn’t change
when ambient lighting
level changed
Check UI setting for light
sensor .
Make sure it is “on”
ok
Check current Software
k
NG
Check whether harness is
Connected on HIF2 and
ok
HSF2 Board
Connect the Harness
properly
Check whether harness is
ok
Connected on HSF2 and
B Board
NG
ok
Change Smart Core
Problem with Smart Core
HSF2 or HIF2
or HSF2-HIF2 harness
OK
Change B* Board
NG
Change
HSF2 B* b
d H
HSF2-B* board harness
OK
Change B Board
NG
HSF2-B* board Harness
problem
113
RB1G
CHASSIS
W850/855A
Troubleshooting
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