27
4. When the door is opened during cooking.
1) The primary interlock switch is opened to cut off primary voltage to the high voltage transformer to stop
microwave oscillation.
2) The secondar interlock switch is opened to give the door open information to touch control circuit. The
contacts of the RELAY "1" and "2" open, the display stops counting down.
3) Fan motor and turn table stop rotating.
4) The oven lamp turns off.
5) As soon as the door is opened, the interlock monitor switch contacts close and creats the short circuit.
6) If the contacts of primary interlock switch malfunction the 15A fuse blows open due to the large current
surge caused by the short circuit activiation, and this in turn stops magnetorn oscillation (Fig.1).
5. When the STOP/CLEAR pad is touched during cooking.
1) The touch control circuit cuts the voltage supplied to the RELAY "1" coil and causes the magnetron to
stop oscillating.
2) RELAY "2" turns off.
3) The display will show the time of day. If you don't set the clock, the display will show a colon.
4) The ovne lamp turns off.
5) Fan motor and turn table motor stop rotating.
OR
FA
F
OR
H.V. CAPACITOR
H.V. DIODE
MAGNETRON
WIRING COLOR
OR: ORANGE
H.V. TRANSFORMER
Fig. 2
Содержание MFM-6D
Страница 46: ...45 Fig 9 Measurement Point ...
Страница 49: ...48 2 P C B CIRCUIT DIAGRAM MFM 6D ...
Страница 50: ...2 P C B CIRCUIT DIAGRAM MFM 7DTP 49 ...
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