Panasonic NN-V659WB, Service Manual

12

5.3

When parts must be replaced, remove 
the power plug from the outlet.

5.4

When the 10A fuse is blown due to the 
operation of short switch:

1. This is mandatory. Refer to “Adjustments and

Measurement” for these switches.

2. When replacing the fuse, confirm that it has the appropriate

rating for these models.

3. When replacing faulty switches, be sure mounting tabs are

not bent, broken or otherwise deficient in their ability to
hold the switches.

5.5

Avoid inserting nails, wire, etc. 
through any holes in the unit during 
operation.

Never insert a wire, nail or any other metal object through the
lamp holes on the cavity or any other holes or gaps, because
such objects may work as an antenna and cause microwave
leakage.

5.6

Confirm after repair

1. After repair or replacement of parts, make sure that the

screws of the oven, etc. are neither loose nor missing.
Microwaves might leak if screws are not properly tightened.

2. Make sure that all electrical connections are tight before

inserting the plug into the wall outlet.

3. Check for microwave energy leakage. (Refer to procedure

for measuring microwave energy leakage).

WARNING

When the 10A 250V. fuse is blown due to the operation of
short switch, you must replace Primary latch switch and short
switch. Also replace power relay 1 (RY1) when the continuity
check reads shorted contacts (1-2).

CAUTION

MICROWAVE RADIATION

DO NOT BECOME EXPOSED TO RADIATION FROM THE
MICROWAVE GENERATOR OR OTHER PARTS
CONDUCTING MICROWAVE ENERGY.

IMPORTANT NOTICE 

1. The following components have potentials above 250V
while the appliance is operated.
•

Magnetron

•

High voltage transformer (Located on Inverter(U))

•

High voltage diodes (Located on Inverter(U))

•

High voltage capacitors (Located on Inverter(U))

Pay special attention on these areas.
When the appliance is operated with the door hinges or
magnetron is fixed incorrectly, the microwave leakage can

reach more than 5mW/cm

3

. After repair or exchange, it is

very  important to check if the magnetron and the door
hinges are correctly fixed.

NEW H.V.