Special High Voltage Precautions - Samsung SMH1713 Series Service Manual

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 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 .
PRECAUTION
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 .
PRECAUTION
Servicemen should remove their watches whenever working close to or replacing the magnetron .
PRECAUTION
Never touch any circuit wiring with your hand or with an uninsulated tool during operation .
H. V. Capacitor
5
H. V. Diode
Short