Measurements And Adjustments - Panasonic NN-P994 Service Manual

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Operating instructions manual (60 pages)

Operating instructions manual (64 pages)

Table of Contents

WARNING

* For continued protection against radiation hazard,

replace only with identical replacement parts(For touch

m o d e l s P a r t N o . A N E 6 1 4 2 - 1 4 5 0 , T y p e N o .

V-16G-3C26-M for Primary latch switch; Part No.

A61425180AP, Type No. L-3C2-2 for Secondary latch

switch; Part No. A61785180AP, Type No. L-2C2-2 for

short switch and Part. No. AEG5J1EG12B/AEG5J1EG18B,

Type No. G5J-1-TP for power relay B(RY1))

* When the 18 Amp. fuse is blown due to the operation of

the short switch, you must replace power relay B. Primary

latch switch and the short switch. Then follow the installa-

tion procedures below.

* Interlock switch replacement

switches, be sure mounting tabs are not bent, broken or

otherwise deficient in their ability to hold the switches.

* Refer to schematic diagram to ensure proper connec-

tion.

1. Adjustment of Primary latch switch, Second-

ary latch switch and Short switch.

(A) 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 hook 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.

(B) When mounting the door hook assembly to the oven

assembly, adjust the door hook assembly by moving it in the

direction of arrow in the illustration so that the oven door will not

have any play in it. Check for play in the door by pulling the door

assembly. Make sure that the latch keys move smoothly after

adjustment is completed. Completely tighten the screws holding

the door hook assembly to the oven assembly.

monitor circuit and all latch switches again by following the

components test procedures.

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 liter 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.

(A) 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).

(B) Place the beaker on the center of glass cook plate.

Set the oven for High power and heat it for exactly one minute.

(recorded as T2).

(D) The normal temperature rise at High power position for each

model is as shown in table.