Side Buttons Malfunction; Ir Remote Commander Malfunction; Light Sensor Error - Sony KDL-40W580B Service Manual

Troubleshooting

3-5. SIDE BUTTONS MALFUNCTION

Side Key button Change Switch
malfunction
Harness on Switch Unit
and BAXL Board properly
Switch unit-BAXL board Harness
Change BAXL

3-7. Light Sensor Error

Backlight doesn't change
when ambient lighting
level changed
OK
Switch unit issue
Unit
NG
OK
Harness connection
issue
connected
NG
OK
Change
Harness issue
NG
Size G* Board Type B* Board H Board
40"
Board
48"
Check UI setting for light
Sensor. Make sure it is "on"

3-6. IR REMOTE COMMANDER MALFUNCTION

IR do not response to
Remote Commander
Not applicable BAX_L HJM
Not applicable BAX_L HJM
Change the UI setting to
":ON"
NG
Harness on H-board and
B* Board properly connected
NG
Change
H-BAXL board Harness
NG
Change Smart Core
NG
Change BAXL Board
W580B/W585B/W590B/W600B/W605B/W607B/W608B/WM15B
Center white LED Check whether center
white LED blink ,when
lit up when
remote is control using commander near
the sensor windows
is pressed
Harness
Harness on H-board
connection
and BAXL Board
properly connected
issue
H-BAXL board harness
Change H-BAXL
board Harness
issue
OK
Smart core issue
Change Smart Core or
H-board
H-board issue
NG
Change BAXL Board
Note: Blue line/font for HM segment
OK
User did not activate light
sensor function
OK Harness connection
issue
OK
Smart Core issue
OK H-BAXL board harness
issue
RB2G
CHASSIS
Remote control battery
could be weak.
Change battery.
or
23