Sony KD-43X7 G Series Service Manual page 114

2.10 IR Remote Commander Error
IR remote commander does
not respond
Resistor value
[BB9]
R5022: 100 [ohm]
Center white LED blinks
when pushing buttons of
remote commander at
close to IR sensor.
NG
Check harness
connection between B-
board and H-board
NG
Change harness between
B-board to H-board
harness
NG
Change H-board
NG
Check resistor value on
B-board
NG
OK
Battery of remote commander
could be weak.
Change battery.
OK
Harness connection
issue
OK
B-board to H-board harness
issue
OK
H-board issue
OK
Parts issue
Change B-board
Main device issue
114
SYS SET