Ir – Troubleshooting Flow - Sony KLV-24R402A Service Manual

Troubleshooting
3-10. IR – Troubleshooting flow
TV cannot be controlled TV cannot be controlled
by remote commander
Green LED light
at Power LED indicator
NG
Confirm Harness connection
OK on BB Board and HB Board
NG
Change Harness Change Harness
NG
Change HB board
NG
Change BB board
OK
Green LED blinks at Power indicator G LED bli k
when using commander
near sensor's window
OK
Harness loose connection
OK
Harness NG Harness NG
OK
HB board NG
t P i di t OK OK
NG
ITC2
R402/ R407/ R422/ R435/ R452/ R457/ R472/ R488
Mechanical
(ex. Bezel, Guidelight)
CHASSIS
53