Read Sony XBR-43X830C / XBR-49X830C / XBR-49X835C / XBR-49X837C / XBR-49X839C Service Manual online
XBR-43X830C, 49X830C, 835C, 837C, 839C
123
TROUBLE SHOOTING
Harness on H-board
and B* Board
properly connected
B*Board
Check parts value :
R1080 = zero ohm
Check whether center
white LED blink ,when using
commander near the sensor
windows
SIRCS (IC1000 Pin Y35 , B*Board)
Check voltage (Power ON condition):
3.287V < Voltage < 3.55V?
IR do not response to
Remote Commander
Remote control battery
could be weak.
Change battery.
Center white LED
lit up when remote
control is pressed
Change
H-B* board Harness
H-B* board harness
issue
Harness
connection
issue
Change Smart Core
OK
Smart core issue
NG
OK
OK
NG
NG
NG
OK
OK
NG
Change B*Board
Muffin IC1000
problem
OK
NG
Parts Broken issue
OK
3-7. IR REMOTE COMMANDER MALFUNCTION
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