Sony KDL-22EX425 Service Manual page 52

SECTION 5 - FLOW CHARTS AND DIAGRAMS
Exchange the Harness
KDL-22EX425/32EX425/32EX525/40EX525/46EX525
Remote Commander
Buttons not working
OK
Green LED light
at power indicator
NG
OK
Check the Harness
between the B* Board
and the HLR Board
NG
OK
NG
OK
Exchange the
HLR Board
NG
B* Board
FIGURE 5-12. IR MALFUNCTIONING
Green LED blinks
OK
at power indicator
when using commander
near sensor's window
NG
Sensor is broken
Harness
HLR Board
Mechanical
(ex. bezel)
46