Sony XBR-55X900H Service Manual page 43

2021/04/27 23:25:57 (GMT+09:00)
2.6 : 6x LED Blinking (BACKLIGHT_ERR)
BM5/BM5S Board
6x blinking
Check "BL_ERR" Voltage
at JL1703 on BM5 Board
at JL1706 on BM5S Board
Low
SAFETY NOTES
High
harness/connection
or G board to
BM5/BM5S
Harness /
Connection OK
SELF DIAGNOSTIC FUNCTION
T R O U B L E S H O O T I N G
Harness /
Connection
Check
broken
Replace G board
TROUBLESHOOTING SERVICE ADJUSTMENT
Symptom
Improvement
Replace
Harness
harness
NG
Symptom
Improvement
G board
NG
Symptom
Improvement
Replace BM5/BM5S
BM5/BM5S
NG
Symptom
Improvement
Replace
Panel
DIAGRAM
Board
Panel
43
HANDLING GUIDE
SYS SET