Measuring Instruments - Panasonic NE-7920 Service Manual

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(B)
1.
2.
34 seconds.
High
Power
Indicator
Light turns. on and for
start blinking.
Timer counts down by seconds.
Microwave activity starts.
Fan motor and turn-
table begin to rotate.
Oven light turns on.
7) Press the handle latch button. Stage 1 Indicator
Light
for
NE-8020
or
High
Power
Indicator
Light for NE-7920,
NE-7920C
stops blinking.
Timer stops counting down.
Microwave activity-
stops.
Fan motor and turntable stop functioning.
Oven light turns off.
8) Touch Start pad again. Oven operates as item 6.
9) Tap Reset/Stop
pad.
Oven stops functioning
as item 7.
10) Tap Reset/Stop
pad again.
the display window.
11) Remove the water load from the oven.
12) Pour 150 + 15 cc (4.5 + 1/2 ozs) of room tem-
perature water in a beaker, securely cover the top
of the beaker with plastic wrap and place the
beaker in the center of the oven.
13) Tap Auto
Sensor
'Cook''
pad 4 times. Auto
Cook
Indicator Light for NE-7920 & NE-7920C
or
Cook
Status
Indicator
Light for NE-8020
turns on. And the display window shows A4.
14) Touch Start pad to start Auto Cooking A4.
Auto
Cook
Indicator
Light
or
Cook
Status
Indicator Light blinks.
Fan motor and turntable begin to rotate. Oven
light turns on.
15) The oven light will dim a little, about a minute
after Start pad is touched.
This indicates that
the magnetron has started oscillation.
16) Auto
Cooking
automatically
switches
to time
cooking, A4 disappears and 200 to 300 (2 min.
to 3 min.)
appears
in the display window
as
balance of cooking time. The cooking time will
change depending on the water temperature, the
shape of the beaker or power source voltage.
17) When
the balance of cooking time has elapsed.
oven
stops
and TOD
reappears
in the display
window
and oven
beeps 5 times. finally make
sure that TOD in the display is correct.
TOD
reappears
in
NECESSARY
TOOLS AND
MEASURING
INSTRUMENTS
Necessary tools
Tools normally used for TV servicing are sufficient. Standard tools are listed below.
*
Vinyl insulation tape
Long nose pliers
Slotted head screwdriver
* Stop watch
*
Adjustable wrench
Soldering iron
Polishing cloth
*
*
Two 1 liter beakers or equivalent
* Ruler
* Electromagnetic radiation monitor
* 600 cc glass beaker or equivalent
Glass thermometer 100°C or 212°F
C3

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Ne-7920cNe-8020

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