Read Sony KD-49X8005C (serv.man2) Service Manual online
KD-49/55X8005C
122
TROUBLE SHOOTING
LIGTH_SENSOR (Muffin Pin L35)
Check voltage variation from
room light to dark condition
B*Board
Check LIGTH_SENSOR signal path :
R1079 = zero ohm
Backlight doesn’t change
when ambient lighting
level changed
Check UI setting for light
Sensor. Make sure it is “on”
Change the UI setting
to “ON”
OK
Harness on H-board and
B* Board properly connected
Harness connection
issue
NG
User did not activate light
sensor function
OK
Change
H-B* board Harness
NG
OK
Change Smart Core
OK
NG
NG
H-B* board harness
issue
Smart Core issue
NG
Change B*Board
Muffin IC1000 problem
OK
OK
NG
Part broken issue
3-8. LIGHT SENSOR ERROR
Click on the first or last page to see other KD-49X8005C (serv.man2) service manuals if exist.