Sharp R-990KS Service Manual page 34

R990K(W)
NOTE: CONDITION OF OVEN
1. DOOR CLOSED.
2. MIX COOKING PAD TOUCHED.
3. COOKING TIME PROGRAMMED.
4. START PAD TOUCHED.
5. RY2 AND RY3 WILL ALTERNATELY CLOSED DURING COOK CYCLE.
NOISE FILTER
OL
230-240V
50Hz
UPPER LATCH
SWITCH
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED.
2. CONVECTION PAD TOUCHED.
3. DESIRED TEMP. PAD
TOUCHED.
4. COOKING TIME PRO-
GRAMMED.
5. START PAD TOUCHED.
NOISE FILTER
OL
230-240V
50Hz
UPPER LATCH
SWITCH
SCHEMATIC
THERMAL CUT-OUT
145¡C (MAGNETRON)
OR
TEMPERATURE THERMAL CUT-OUT
95¡C (FAN)
FUSE 150¡C
(MAGNETRON)
A1
TTM CM
A-7
FM DM
A-9
CONTROL UNIT
E-1 E-2
STOP
THER-
SWITCH
MISTOR
Figure O-3. Oven Schematic-Automatic Mix Cooking Condition
THERMAL CUT-OUT
145¡C (MAGNETRON)
OR
TEMPERATURE THERMAL CUT-OUT
FUSE 150¡C 95¡C (FAN)
(MAGNETRON)
A1
TTM CM
A-7
FM DM
A-9
CONTROL UNIT
E-1 E-2
STOP
THER-
SWITCH
MISTOR
Figure O-4. Oven Schematic-Convection Cooking Condition
NOTE: " " indicates components with potentials above 250V
COM.
(RY1)
A3 A5
N.O.
(RY1)
COM.
(RY3)
RY2
COM.
(RY2)
RY3
N.O.
(RY2)
N.O.
(RY3)
E-3 E-4 E-5 E-6 F-3 F-2 F-1
DAMPER
AH SENSOR
SWITCH
COM.
A3 (RY1)
A5
N.O.
(RY1)
COM.
(RY3)
RY2
COM.
(RY2)
RY3
N.O.
(RY2)
N.O.
(RY3)
F-3 F-2 F-1
E-3 E-4 E-5 E-6
DAMPER
AH SENSOR
SWITCH
12 – 2
POWER
TRANSFORMER
H.V.FUSE
0.75A
CAPACITOR
1.13μ
AC 2100V
POWER
TRANSFORMER
H.V.FUSE
0.75A
CAPACITOR
1.13μ
AC 2100V