Sanyo LCD-19XR9DA(C), Service Manual

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2
、
No Picture, but backlight is normal.
Check the operation
of remote control or
key board.
Press key
“
menu
”
, check
if OSD displays normally?
Yes
Check relative circuits
on main board
Isn
’
t there
picture of each
channel?
Yes
No
Enter into factory
menu, initialize E
2
PROM,
power off and then power
on again, Does picture
display?
Check related
channel.
No
No
Check if
voltage of
X405-1# is
5V?
No
Check power circuits
of T-CON.
No
Check LVDS circuits
Yes
Check circuits of each
channel?
Yes
Yes
OK