High Voltage Section - Panasonic UF-5500 Service Manual

11.2.17. High Voltage Section

1. Main
All of the outputs
are abnormal.
Replace the unit.
Check the HVPS unit failure.
Check the voltage of
pin8 of HVPS unit.
Is +24V power
output?
YES
Check the SW1.
Is it normal?
YES
Check the value of
the resistor F1.
Is the value of
the resistor 0 ?
YES
Make sure each output.
If any trouble is found, refer to
the manual for each part.
CHG BIAS ,
TRA (+) BIAS
GRID
181
NO
Check the Main Board.
NO
Replace the SW1.
NO
Replace the F1.
DEV BIAS
UF-5500 / 4500
TRA (-) BIAS