Panasonic VF200 Instruction Manual page 133

10. Maintenance and Inspection
Inspection
item
Check if there is
Transformer
burning smell.
Terminal Check if there is
block sign of damage.
Check the
Transistors resistance
and diodes
between
terminals.
1) Check for
liquid leakage;
2) Check if the
safety valve is
Smoothing
working
capacitor
correctly;
3) Measure
electrostatic
capacity.
1) Check if the
operation sound
is normal;
Relay
2) Check the
contact
roughness.
1) Check if there
is cracking on
Resistor the insulation;
2) Check if open
circuit exists.
126
Inspection Inspection
details interval
✩
✩
✩
Inspection
method
Just smell.
Check visually.
Disconnect the
main circuit wires
◎
and measure at
the terminals.
1), 2): Check
visually;
3): Measure with
a capacitance
meter.
1) Just smell;
2) Check visually.
1), 2): Check
visually.
Judgment
Instrument
criteria
In normal
status
In normal
status
Multimeter
1), 2): In
normal
status.
Capacitance
3): Minimum
meter
85% of
rated
capacity
1), 2): In
normal
status.
1), 2): In
normal status