Description And Function Of Components - Sharp R-930CS Service Manual

R-930CS
MAGNETRON
CONV.
TEMPERATURE
THERMAL
FUSE
CUT-OUT
FUSE
TTM OL FM CM
120V
60Hz
SECONDARY
INTERLOCK
SWITCH
CONV. MAGNETRON
THERMAL TEMPERATURE
CUT-OUT FUSE
FUSE
TTM FM
OL CM
120V
60Hz
SECONDARY
INTERLOCK
SWITCH
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 second-
A-3
A-1
DM
A-7
A-9
CONTROL UNIT
F-1 F-2 F-3
DOOR
SENSING
AH SENSOR
SWITCH
Figure O-3. Oven Schematic-Automatic Mix Cooking Condition
A-3
A-1
DM
A-7
A-9
CONTROL UNIT
F-1 F-2 F-3
DOOR
SENSING
AH SENSOR
SWITCH
Figure O-4. Oven Schematic-Convection Cooking Condition

DESCRIPTION AND FUNCTION OF COMPONENTS

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.
COM.
(RY1)
A-5
N.O.
(RY1)
COM.
(RY3)
RY2
COM.
RY2
(RY2)
PRIMARY
INTERLOCK
RY3
N.O.
RELAY
(RY2)
N.O.
(RY3)
E-1 E-2 E-3 E-4 E-5 E-6
THER- DAMPER
MISTOR SWITCH
SCHEMATIC
1. DOOR CLOSED.
2. CONVECTION PAD TOUCHED.
3. DESIRED TEMP. TOUCHED.
4. COOKING TIME PROGRAMMED.
5. "START" PAD TOUCHED.
COM.
(RY1)
A-5
N.O.
(RY1)
COM.
(RY3)
RY2
COM.
RY2
(RY2)
PRIMARY
INTERLOCK
RY3
N.O.
RELAY
(RY2)
N.O.
(RY3)
E-1 E-2 E-3 E-4 E-5 E-6
THER-
DAMPER
MISTOR
SWITCH
ary 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
10
SCHEMATIC
POWER
TRANSFORMER
CAPACITOR
0.94
POWER
TRANSFORMER
CAPACITOR
0.94