4.34 Protective Diode (V6) Test
A Removing the Microwave Oven from a Housing Unit, 001 4.4.
A Cover Removal, 001 4.5.
x
Danger!
For safety reasons, it is important to ensure that the high-voltage capacitor is
discharged by always short-circuiting it before starting any maintenance or
repair work. See .
A Disconnect both protective diode connections.
A Use an isolation tester (in accordance with IEC 6557-2) with at least 500V
measuring voltage to measure the resistance between the two connections in
both directions.
A The resistance must be infinite in both directions.
x
Danger!
In order to ensure that no microwave energy can escape after any repair work
has been completed, the microwave oven must be thoroughly checked for
microwave leaks using a suitable microwave leak detector (mat. no. 05595470).
Particular care should be taken around the door and the casing edges.
The maximum permissible value is 5mW/cm
2
(32.3mW per square inch),
measured at a distance of 5cm (2 inches) from the oven with a water load of
275cm
3
±15cm
3
(0.073 gallons ± 0.004 gallons).
4.35 Magnetron (G2) Heater Filament Test
A Removing the Microwave Oven from a Housing Unit, 001 4.4.
A Cover Removal, 001 4.5.
x
Danger!
For safety reasons, it is important to ensure that the high-voltage capacitor is
discharged by always short-circuiting it before starting any maintenance or
repair work. See .
A Disconnect both magnetron connections.
A Use an ohmmeter (in accordance with IEC 61010-1) to measure the
resistance between the two magnetron terminals (heater filament). The
ohmmeter must be able to measure in the mΩ range.
A The measured resistance must be < 1Ω.
Descriptive Technical Documentation
DTD no. 24-6160 001-57
01.10.2014, US_am This information should not be duplicated or passed on without Miele approval. All rights reserved.
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