Panasonic VL-SV75 Series, Service Manual

Page: 28 / 102

9.2.3 Defect of the Main Monitor Station Power Supply
9.2.3.1 Defect of the Power supply unit
NO
NO
NO
Defect of the power supply unit
YES
YES
YES
YES
YES
Is the unit powerd ON?
Rewire the AC cable correctly.
NO
NO
YES
YES
YES
Are the AC cable connected to
power unit properly?
START
Go to " Defect of the power supply unit ".(See below)
YES
Go to Defect of the Power board unit (see next page)
Replace the Power supply unit.
Is the unit powered ON?
Replace the secondary circuit
parts of the Power Supply unit.
Replace the primary circuit parts
of the Power Supply unit.
Is the unit powered ON?
END
Is the unit powerd ON?
NO
END
YES
END
END
END
END
Replace the fuse(F1).
Is the unit powered ON?
Is the voltage between
both ends of D1 ranging
from 220V to 240V?
Is the fuse(F1) is
burned out?
Is the unit powerd ON?
Is the wiring of
DC cable (for DC 24V)
OK?
Rewire the DC cable (for DC 24V)
correctlly.
Replace with a non-defective power supply unit.
NO
NO
NO
NO
- 28 -