Sharp R-937 Service Manual

38
Figure S-2. Power Unit Circuit
E 1
WH1-4
WH1-3
WH1-6
WH1-9
WH1-5
WH1-8
WH1-7
WH1-1
WH1-2
WH2-1
WH1-n
WH1-10
WH1-12
WH1-13
WH1-14
WH1-15
WH1-11
C 1
E 3
E 5
E 7
T1
AC230V
50Hz
FAN MOTOR
OVEN
THERMISTOR
GND
GND
R3 680 1w
Q1 2SB1238
R6 130 1w
Q2
2SB1238
Q3
KRC243M
R4 510 1w
D10
S1NB10
RY5
ab
c
d
C1
VRS1
(J1)
(J2)
D5
RY6
D6
RY7
D7
RY1
D1
R2 1.5k
ZD2 HZ20-1
ZD1 HZ16-1
RY4
D4
RY3
D3
RY2
D2
10G471K
C3
C2 1000µ/35v
C5 10µ/35v
C4 10µ/35v
R1 2.4k
R5 3.3k
SP1
VC
BUZZER
VR
VA
INT
POWER
CONTROL
STOP
SWITCH
DAMPER
SWITCH
NC
CONVECTION
MOTOR
DAMPER
MOTOR
NC
CONVECTION
HEATING
ELEMENT
GRILL
HEATING
ELEMENT
HIGH VOLTAGE
TRANSFORMER
STOP
SWITCH
DAMPER
SWITCH
OVEN LAMP
TURNTABLE
MOTOR
DOOR OPEN CONTACT
A 1
A 3
A 5
A 7
D 1
D 5
N O
N O
N O
N O
COM
COM
COM
COM
B 4
B 3
B 2
B 1
NOTE 1. NOTE 2.
+
–
+
–
+
–
WH2-4
WH2-3
RY8
D8
D 3
C 3
: IF NOT SPECIFIED, 1/4W ± 5% 15P WIRE HARNESS
WH2-n
4P WIRE HARNESS
: IF NOT SPECIFIED, 0.1µF / 50V
: IF NOT SPECIFIED, 1SS270A
WH2-2
POWER UNIT CIRCUIT

Sharp R-937 Specifications

General

Brand	Sharp
Model	R-937
Category	Microwave Oven
Language	English