Measurements And Adjustments - Panasonic NN-J993 Service Manual

10 MEASUREMENTS AND ADJUSTMENTS

10.1. Adjustment of Primary latch
switch, Secondary latch
switch and short switch
1. When mounting primary latch switch, secondary latch switch
and short switch to door hook assembly, mount the primary
latch switch, the Secondary latch switch and the short switch to
the door assembly as shown in table.
NOTE: No specific adjustment during installation of Primary
latch switch, Secondary latch switch and short switch to the
door hook is necessary.
2. When mounting the door hook assembly to the oven
assembly, adjust the door hook assembly by moving it in the
direction of arrow in table so that the oven door will not have
any play in it. Check for play in the door by pulling the smoothly
after sdjustment 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
components thst procedures.
10.2. 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 produres, it is recommended to test the
magnetron using the simple method outlined below.
Necessary Equipment:
*1 liter beaker *Glass thermometer
*Wrist watch or stopwatch
NOTE 1: Check the line voltage under load. Low voltage will
lower the magnetron output. Take the temperature readings
and heating time as accurate as possible.
NOTE 2: When measureing output, make sure unplug oven at
once for 10 seconds and set maximum power setting. unless
output result will be lower.
NOTE 3: Make sure once unplug oven before conducting
output test, since after warm upped oven, it may not come
out full output power. Unplug to reset power down
function.
1. Fill the beaker with exactly one liter of tap water. stir the
water using the thermometer and record the beaker's
temperature (recorded as T1).
2. Place the beaker on the center of glass cook 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 beaker
(recorded as T2).
4. The normal temperature rise at High power position for each
models is as shown in table.
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NN-J993