Sanyo PDP-42XR8DA, Service Manual, Page: 23 / 41

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2. Troubleshooting guide
2.1. No raster
Turn-on power supply, check
if the red indicator is light in
the STANDBY?
Check if 5VSTB of X802 9#
on main board is normal?
Check STANDBY circuit of
power supply board
Press POWER button on the
unit or sensor control and
check the indicator.
Check if the PIN11 of X802 on
main board is high-level?
Check high voltage on
power board
Check high voltage on
power board
yes
no
no
red
blue
Check POWER
ON/OFF control circuit
on the main board
no
yes