Alignment And Adjustments; High Voltage Transformer; Magnetron; High Voltage Capacitor - Samsung ME21F707MJT Service Manual

4. Alignment and Adjustments

PRECAUTION
1. High voltage is present at the high voltage terminals during any cook cycle.
2. It is neither necessary nor advisable to attempt measurement of the high voltage.
3. Before touching any oven components or wiring, always unplug the oven from its power source and
discharge the high voltage capacitor.

4-1 High Voltage Transformer

1. Remove connectors from the transformer terminals and
check continuity.
2. Normal resistance readings are as follows:
<ME21F707MJT/AA>
SHV-U1870D
Secondary
Filament Shows Continuity
Primary
<ME21F707MJT/AC>
SHV-U1850A
Secondary
Filament Shows Continuity
Primary
(Room temperature = 20°C)

4-2 Magnetron

1.
shorted magnetron.
2. Isolate the magnetron from the circuit by disconnecting its
leads.
3.
should indicate one ohm or less.
4.
magnetron case should read open.

4-3 High Voltage Capacitor

1. Check continuity of the capacitor with the meter set at the highest resistance scale.
2.
3. A shorted capacitor will show continuous continuity.
4.
5.
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