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5. Alignment and Adjustments
1. Remove connectors from the transformer terminals
and check continuity.
2. Normal resistance readings are as follows:
SHV-UT10KA
Secondary
Filament
Primary
123.5Ω ± 2%
Shows Continuity
0.464Ω ± 2%
(Room temperature = 20°C)
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 dis-
charge the high voltage capacitor.
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.
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.
Terminals
Resistance
SLV-D2LEDU
2~3(Input)
6~8(Output17V)
310Ω
7.7Ω
Cooling Fins
5-3 Magnetron
5-2 Low Voltage Transformer
5-1 High Voltage Transformer
