Special High Voltage Precautions; Before Servicing - Samsung CM1629 Service Manual

1-2 Special High Voltage Precautions

1. High Voltage Warning Do not attempt to measure
any of the high voltages --this includes the fila-
ment 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 nega-
tive 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 compo-
nents.
PRECAUTION
There exists HIGH VOLTAGE ELECTRICITY with
high current capabilities in the circuits of the HIGH
VOLTAGE TRANSFORMER secondary and fila-
ment 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
Never touch any circuit wiring with your hand nor
with uninsulated tool during operation.
PRECAUTION
Servicemen should remove their watches when-
ever working close to or replacing the magnetron.
Discharge the 2 High Voltage Capacitors

before servicing!

Screwdriver
Note : Touch chassis side first then short to the high
voltage capacitor terminal by using a screw-
driver.
- 2 -
H.V.Capacitors
Negative Terminal