Sanyo PDP-50XR7, Service Manual

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20
Trouble shooting
1. No raster
Turn-on power supply, check
if the red indicator is light in
the STANDBY?
Check if PIN3(5V) of main
board is normal?
Check STANDBY circuit of
power supply board
Press POWER button in the
unit or sensor control and
check the indicator.
Check if the PIN27 of X304 in
01 board is high-level?
Check if the PIN11 of X303 in
main board is high-level?
Check power
supply board
Check if Va, Vs of X5203,
X5204 on the power board
is normal
yes
no
no
red
blue
no
yes
Replace 01 board
no
yes
Replace
N102
Check the panel
no
yes
Check the
power board