Tech Sheet

31
Component
Serviceable
Side
Procedure Results - Resistance
Component
Location
Halogen Light Top 1. Unplug microwave oven or disconnect power.
2. Remove wire leads.
3. Measure resistance.
4. Replace wire leads.
5. Reassemble all parts and panels before operating.
6. Plug in microwave oven or reconnect power.
Normal = approximately 3 Ω
Abnormal = Innite
M
Inverter Top Check wiring to MW inverter:
1. Unplug microwave oven or disconnect power.
2. Visually inspect 4 connectors on the MW inverter
boards, CN701, CN702, CN703, and E701 to see
whether there are signs of overheating or any signs of
failure due to loose wires, bad crimping, etc.
3. Reassemble all parts and panels before operating.
4. Plug in microwave oven or reconnect power.
S
Magnetron Top 1. Unplug microwave oven or disconnect power.
2. Remove wire leads. Check that the seal is in good
condition.
3. Measure resistance.
4. Replace wire leads.
5. Reassemble all parts and panels before operating.
6. Plug in microwave oven or reconnect power.
Filament Terminals Normal =
<1W
Filament to Chassis Normal =
Innite
Q
Line Filter Top 1. Unplug microwave oven or disconnect power.
2. Remove wire leads.
3. Measure resistance.
4. Replace wire leads.
5. Reassemble all parts and panels before operating.
6. Plug in microwave oven or reconnect power.
P31 to P32, P33toP34 Normal
>/= 300 kΩ
Abnormal
</= 100 kΩ
P31 to P34, P32 to P33 Normal
= 0 Ω
Abnormal
>/= 100 kΩ
D