Sanyo LCD-46XZ10FH Service Manual page 25

2．Backlight is normal, but there is no picture
Check if operations
of remote control or
keys on the unit are
normal ?
No
Enter into factory menu ，
initialize
power off and power on
again,
No
picture ?
Change another
main board
Check if OSD menu is
displayed
Yes
after
"menu"?
No
有
EEPROM,
check if there
Yes
Adjust main board again
normally
Yes
pressing key
Yes
Check if there
TV
is no picture of
all channels ?
then
is
No