Measurements And Adjustments; Adjustment Of Primary Latch Switch, Secondary Latch Switch And Short Switch; Measurement Of Microwave Output - Panasonic NN-GS597M Service Manual

NN-GS597M

8 MEASUREMENTS AND ADJUSTMENTS

8.1. Adjustment of Primary latch
switch, Secondary latch
switch and Short switch.
1. Mount the Primary latch switch, the Secondary latch switch
and the Short switch to the door hook assembly as shown
in illustration.
NOTE:
No specific
installation of the Primary latch switch, Secondary
latch switch or Short switch to the door hook are
required.
2. When mounting the door hook assembly to the oven
assembly, adjust the door hook assembly by moving it in
the direction of the arrows in the illustration so that the oven
door will not have any play in it. Make sure that all latch
switches work properly after adjustment is completed.
Completely tighten the screws holding the door hook
assembly to the oven assembly.
3. Reconnect the short switch and check the continuity of the
monitor circuit and all latch switches again by following the
component test procedures.
individual adjustments
4. The Primary latch switch must be ON when the space
between upper portion of door A and cavity front plate is
2~4mm, if the door gap is greater than 4mm, the Primary
latch switch must be OFF.
during
If alignment is poor, oven may not operate after oven/grill
use.
8.2. Measurement of microwave
output
The output power of the magnetron can be determined by
performing IEC standard test procedures. However, due to the
complexity of IEC test procedures, it is recommended to test
the magnetron using the simple method outlined below.
Necessary Equipment:
• • • • 1 litre beaker
• • • • Glass thermometer
• • • • Wrist watch or stopwatch
NOTE:
Check the line voltage under load. Low voltage will
lower the magnetron output. Take the temperature
readings and heating time as accurately as possible.
1. Fill the beaker with exactly one litre of tap water. Stir the
water using the thermometer and record the water's
temperature. (recorded as T1).
2. Place the beaker on the center of ceramic plate.
Set the oven for High power and heat it for exactly one
minute.
3. Stir the water again and read the temperature of the water.
(recorded as T2).
4. The normal temperature rise at High power level for each
model is as shown in table.
RATED OUTPUT
1000W
22
TABLE (1L-1min. test)
TEMPERATURE RISE
Min.8.5°C