Sony XBR-55X900H Service Manual page 77

2020/06/27 06:31:32 (GMT+09:00)
5.2 Light Sensor Error
Backlight level does not
change when ambient light
changed
SECTION 1
S E C T I O N 3
T R O U B L E S H O O T I N G
Setting is "ON"
Check UI setting and
make sure light
sensor setting is "ON"
Setting is "OFF"
Setting issue
Change setting to "ON"
SECTION 2 SECTION 3
Check harness
connection between
B-board and Smart
Core
NG
Change harness
between B-board to
Smart Core harness
NG
Change Smart Core
NG
Change B-board
Main device issue
SECTION 4 SECTION 5
OK
Harness connection
issue
OK
B-board to Smart Core harness
issue
OK
Smart Core issue
SECTION 6
77
SYS SET