Sanyo LED-24XR113D Service Manual page 37

No picture, but backlight is normal:
2．
Can the TV set
controlled by keys
remote control or the unit?
No
No
Replace the main
board
be Press key MENU,
Yes
on can OSD display
normally?
有
Enter into factory menu to initialize
EEPROM, then cut off main power
and then turn on the TV set again,
check if there is picture?
Yes
Readjust
main board.
Yes
No
Yes
the
Do no channel
TV
have picture at
all?
No