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5. Alignment and Adjustments
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 dis-
charge the high voltage capacitor.
5-1 High Voltage Transformer
1. Remove connectors from the transformer terminals
and check continuity.
2. Normal resistance readings are as follows:
Secondary
Filament
Primary
(Room temperature = 20°C)
5-2 Low Voltage Transformer
1. The low voltage transformer is located on the
control circuit board.
2. Remove the low voltage transformer from the PCB
Ass'y and check continuity.
3. Normal resistor reading is shown in the table.
5-3 Magnetron
1. Continuity checks can indicate only an open fi la-
ment or a shorted magnetron. To diagnose an open
fi lament or shorted magnetron :
2. Isolate the magnetron from the circuit by discon-
necting its leads.
3. A continuity check across the magnetron fi lament
terminals should indicate one ohm or less.
4. A continuity check between each fi lament terminal
and magnetron case should read open circuit.
PRECAUTION
SHV-UT10KA
123.5Ω ± 2%
Shows Continuity
0.464Ω ± 2%
Terminals
2~3(Input)
6~8(Output17V)
Cooling Fins
- 9 -
Resistance
SLV-D2LEDU
310Ω
7.7Ω
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