Sanyo LCD-24XR10F - Troubleshooting; Remote Control Issues; Video and Audio Problems; General Troubleshooting

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