Sony XR-65X95K Service Manual page 57

TROUBLESHOOTING
5.2 Light Sensor Error
Backlight level does not
change when ambient light
changed
Setting is "ON"
Check UI setting and
make sure light sensor
setting is "ON"
Setting is "OFF"
Setting issue
Change setting to "ON"
Check harness
NG
connection between
B-board and Smart
Core
OK
OK
Change harness
between B-board to
Smart Core harness
NG
OK
Change Smart Core
NG
Change B-board
Main device issue
Harness connection
issue
B-board to Smart Core
harness issue
Smart Core issue
57
SYS SET