Sanyo LCD-46XR10F, Service Manual

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2
．
Backlight is normal, but no picture.
Yes
Yes
No
No Yes
TV
No
有
No
Yes
Check if TV set
can be operated
by remote control
or keys of the unit.
Aren’t there pictures
of all channels?
Change main
board.
Enter into factory menu,
initialize EEPROM, power
off and then power on TV
set again, check if there
is picture.
Press key “menu”,
check if OSD
display normally.
Change
main board. Readjust main
board.