Sony KLV-32R4 C Series Service Manual page 118

3-11. IR
3-11-1. Troubleshooting flow
TV cannot be controlled TV cannot be controlled
by remote commander by remote commander
Green LED lights up Green LED lights up
at Power LED indicator at Power LED indicator at Power LED indicator at Power LED indicator
NG
Confirm Harness connection Confirm Harness connection
OK on B-Board and HKK Board OK on B-Board and HKK Board
NG
Change Harness Change Harness
NG
Change HKK board Change HKK board
NG NG
Change B-board
OK
Green LED blinks at Power indicator Green LED blinks at Power indicator
when using commander when using commander
near sensor's window near sensor's window
OK
Harness loose connection
OK
Harness NG
OK
HKK board NG
g g
NG
OK
Mechanical
(ex. Bezel, Guidelight) (ex Bezel Guidelight)
118
SYS SET