Ir Remote Commander Malfunction - Sony KDL-43W7 C Series Service Manual

Troubleshooting

3-6. IR REMOTE COMMANDER MALFUNCTION

IR do not response to
Remote Commander
Check voltage (Power ON condition):
OK
Center white LED lit up
when remote control is
pressed
NG
Harness on H-board
OK
and B* Board
properly connected
NG
OK
Change
H-B* board Harness
NG
OK
Change Smart Core
NG
B*Board
NG
Check parts value :
0 ohm < R1062 < 2 ohm
OK
IR Muffin Pin (B*Board)
OK
3.287V < Voltage < 3.55V?
NG
Change B*Board
Check whether center
OK
white LED blink ,when using
commander near the sensor
windows
Harness
connection
issue
H-B* board harness
issue
Smart core issue
NG
Parts Broken issue
Muffin IC1000
problem
Remote control battery
could be weak.
Change battery.
NG
B*Board
Check parts value :
95 ohm < R1124 < 105 ohm
OK
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