Panasonic NN-GD566M, Service Manual

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SYMPTOM
STEP
CHECK RESULT CAUSE
CORRECTIONS
Missing or lighting of incorrect
segment 1 Replace IC-1 and
check operation Normal IC-1
Abnormal DISPLAY
H97/H98 appears in window
and oven stops operation.
Program High power for 1
minute and conduct following
test quickly, unless H97/H98
appears and oven stops.
[NEW H.V.]
1 Unplug CN702(2 pin)
connector and
measure voltage
between terminals 0V
1. Latch
2. DPC/Power
Relay
AC line voltage of 230-
240V Step
2 Unplug CN701(3 pin)
connector and
measure pin 1 voltage 0V DPC
Approx. AC 3V Magnetron
CONTINUED FOR SENSOR MODELS
Auto sensor cooking does
not operate normally.
(Steam Sensor cooking
does not detect steam from
foods.)
1
Steam sensor terminal
voltage by using high
impedance tester (20k
/ V),while breathing
on metal surface of
sensor
Abnormal = 0V Steam sensor
Normal>10-30mV IC-1
9.4. How to check the semiconductors using an OHM meter
10. EXPLODED VIEW AND PARTS LIST
33