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3-8. LIGHT SENSOR ERROR
Backlight doesn't change
when ambient lighting
level changed
KD-55/65S8500C(CH)
Check UI setting for light
Sensor. Make sure it is "on"
OK
Change the UI setting
to "ON"
NG
OK
Harness on H-board and
B* Board properly connected
NG
OK
Change
H-B* board Harness
NG
OK
Change Smart Core
NG
B*Board
NG
Check LIGTH_SENSOR signal path :
R1079 = zero ohm
OK
LIGTH_SENSOR (Muffin Pin L35)
OK
Check voltage variation from
room light to dark condition
NG
Change B*Board
TROUBLE SHOOTING
User did not activate light
sensor function
Harness connection
issue
H-B* board harness
issue
Smart Core issue
Part broken issue
Muffin IC1000 problem
109
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Table of Contents
Troubleshooting
