Sharp R-930AK-F Service Manual page 12

R-930AK-F
R-930AW-F
SCHEMATIC
1. DOOR CLOSED.
2. MIX COOKING PAD TOUCHED.
3. COOKING TIME PROGRAMMED.
4. "START" PAD TOUCHED.
5. RY2 AND RY3 WILL ALTERNATELY CLOSE.
DURING COOK CYCLE.
NOISE FILTER
FUSE
20A
GRN
120V AC
60 Hz
SCHEMATIC
1. DOOR CLOSED.
2. CONVECTION PAD TOUCHED.
3. DESIRED TEMP. TOUCHED.
4. COOKING TIME PROGRAMMED.
5. "START" PAD TOUCHED.
NOISE FILTER
FUSE
20A
GRN
120V AC
60 Hz
DOOR SENSING AND SECONDARY INTERLOCK
SWITCHES
The door sensing switch in the primary interlock system is
mounted in the upper position on the latch hook, the secondary
MAGNETRON
CONV.
THERMAL TEMPERATURE
FUSE
CUT-OUT
FM
TTM OL CM DM
A-7
A-9
F-1
SECONDARY
INTERLOCK
SWITCH
Figure O-3. Oven Schematic-Automatic Mix Cooking Condition
CONV. MAGNETRON
TEMPERATURE
THERMAL
CUT-OUT FUSE
TTM OL FM CM DM
A-7
A-9
F-1
SECONDARY
INTERLOCK
SWITCH
Figure O-4. Oven Schematic-Convection Cooking Condition
DESCRIPTION AND FUNCTION OF COMPONENTS
COM.
A-3 (RY1)
A-5
A-1
RY2
RY2
PRIMARY
INTERLOCK
RY3
RELAY
CONTROL UNIT
F-2 F-3 E-1 E-2 E-3 E-4 E-5 E-6
DOOR
THER-
DAMPER
SENSING
AH SENSOR
MISTOR SWITCH
SWITCH
COM.
(RY1)
A-3 A-5
A-1
RY2
RY2
PRIMARY
INTERLOCK
RY3
RELAY
CONTROL UNIT
F-2 F-3 E-1 E-2 E-3 E-4 E-5 E-6
DOOR
THER- DAMPER
SENSING
AH SENSOR
MISTOR
SWITCH
SWITCH
interlock switch is mounted in the lower position on the latch hook.
They are activated by the latch heads on the door. When the door
is opened, the switches interrupt the circuit to all components. A
cook cycle cannot take place until the door is firmly closed thereby
10
POWER
TRANSFORMER
N.O.
(RY1)
CAPACITOR
COM.
0.94µ
(RY3)
COM.
(RY2)
N.O.
(RY2)
N.O.
(RY3)
POWER
TRANSFORMER
N.O.
(RY1)
CAPACITOR
COM.
(RY3) 0.94µ
COM.
(RY2)
N.O.
(RY2)
N.O.
(RY3)