Handling Guide - Sony XBR-55X900H Service Manual

2021/04/27 23:25:57 (GMT+09:00)
5.2 Light Sensor Error
Backlight level does not
change when ambient light
changed
SAFETY NOTES
Check UI setting and
make sure light sensor
setting is "ON"
Setting is "OFF"
Setting issue
Change setting to "ON"
SELF DIAGNOSTIC FUNCTION TROUBLESHOOTING
T R O U B L E S H O O T I N G
Setting is "ON"
Check harness
connection between B-
board and SmartCore
OK
Change harness
between B-board to
SmartCore harness
OK
Change SmartCore
OK
Change B-board
Main device issue
SERVICE ADJUSTMENT
NG
Harness connection
issue
NG
B-board to SmartCore harness
issue
NG
SmartCore issue
DIAGRAM

HANDLING GUIDE

68
SYS SET