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(TROUBLE 6) Microwave Output power is low.
First of all, check if output power is really low following "measurement of the microwave
output power" on page 18.
Condition
Check the power
Output
source voltage
power is low.
with magnetron
oscillating
Check the timing
periods of the
RELAY "1" coil
NOTE 2:
The following chart shows the timing periods of the RELAY "1".
POWER
0
1
2
3
4
5
6
7
8
9
HI
NOTE 3: Interlock monitor switch must be replaced when fuse is blown out.
Check
Result
Lower than
207volts
Normal
Abnormal
NOTE 3
NOTE 2
Normal
RELAY "1" ON TIME
3 (Seconds)
Cause
Decrease in
power source
voltage
Defective touch
control circuit
Aging change
of
magnetron
0
5
8
11
14
17
20
23
26
29
38
Remedy
Customer
education
Replace
Replace depending
on the result of
output test
RELAY "1" OFF TIME
29
26 (Seconds)
24
21
18
15
12
9
6
3
0
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