5
1. Precaution
1-2 Special High Voltage Precautions
1.
High Voltage Warning Do not attempt to measure any
of the high voltages --this includes the filament voltage
of the magnetron. High voltage is present during any
cook cycle. Before touching any components or wiring,
always unplug the oven and discharge the high voltage
capacitor (See Figure 1-1)
2.
The high-voltage capacitor remains charged about
30 seconds after disconnection. Short the negative
terminal of the high-voltage capacitor to to the oven
chassis. (Use a screwdriver.)
3.
High voltage is maintained within specified limits
by close-tolerance, safety-related components and
adjustments. If the high voltage exceeds the specified
limits, check each of the special components.
H. V. Capacitor
Short
Touch chassis ground first then short to the
high voltage capacitor terminal by using
screwdriver or jumper wire.
There exists HIGH VOLTAGE ELECTRICITY with high current capabilities in the circuits of the HIGH
VOLTAGE TRANSFORMER secondary and filament terminals. It is extremely dangerous to work on or near
these circuits with the oven energized.
DO NOT measure the voltage in the high voltage circuit including filament voltage of magnetron.
Servicemen should remove their watches
whenever working close to or replacing the
magnetron.
Never touch any circuit wiring with your hand nor
with uninsulated tool during operation.
