Download Sharp Carousel R-9Z00 Service manual

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R-22AT
R-24AT
48 sec. ON
Number key
44sec. ON
Number key 9
40 sec. ON
Number key 8
36 sec. ON
Number key 7
32 sec. ON
Number key 6
26 sec. ON
Number key 5
22 sec. ON
Number key 4
16 sec. ON
Number key 3
12 sec. ON
Number key 2
8 sec. ON
Number key 1
0 sec. ON
Number key 0
NOTE: The ON/OFF time ratio does not exactly correspond to the percentage of microwave power,
because approx. 3 seconds are needed for heating up the magnetron filament.
TWO MAGNETRON OPERATION SYSTEM
Two magnetrons MG1+MG2 are equipped in order to get
higher microwave power output. The primary windings of
the high voltage transformers T1+T2 are connected so
that each magnetron can be oscillated alternatively according to the frequency of the power supply. Refer to the
Figure B-1 and B-2.
T2: HIGH VOLTAGE
TRANSFORMER
(REAR)
H. V. RECTIFIER
MG2: MAGNETRON (LOWER)
H. V. FUSE
C1: H.V. CAPACITOR
C2: H.V. CAPACITOR
H. V. FUSE
T1: HIGH VOLTAGE
TRANSFORMER
(FRONT)
H. V. RECTIFIER
MG1: MAGNETRON (UPPER)
Figure B-1. High Voltage Circuit
OPERATION OF
MAGNETRON
COMMERCIAL
FREQUENCY
(50HZ)
POWER OUTPUT
BY MAGNETRON T1
POWER OUTPUT
BY MAGNETRON T2
Figure B-2. Operation of Magnetron
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