Troubleshooting Guide - Sanyo LCD-46XZ10FH Service Manual

Troubleshooting guide LCD-32XZ10
1．Panel is dark.
Power on main
power supply, check
if the red indicator
light in STANDBY
mode is bright ?
No
Check if the voltage
of X801-3# (STB)
on main board is
inputted 5V ?
No
Check if STANDBY
circuits on power
board are normal ?
Yes
Press key "POWER" of
remote control or the unit
to power on，check what
color of indicator light is?
Check if the voltage of
X801-13＃ on main board
is high level ?
Check if backlight circuits
on power board and
backlight
No
normal ?
Check if circuits about
backlight control on
main board are normal?
Red
Blue
Yes
board are
Check if the voltage of
X801-1 ＃ on main board
is high level?
Check
assembly is normal ?
Yes
if power board