Sharp R-21AT Service Manual ▷ View online
R-21AT
27
6
4
5
1
2
3
6
4
5
1
2
3
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
Figure S-1. Pictrorial Diagram
THERMAL CUT-OUT
125˚C(OVEN)
THERMAL
CUT-OUT
145
°
C(MAG.)
FAN MOTOR
WHT
YLW
WHT
BLK
HIGH VOLTAGE COMPONENTS
MAGNETRON
H.V.
CAPACITOR
H.V.
FUSE
H.V.
RECTIFIER
POWER TRANSFORMER
G-Y
POWER SUPPLY
CORD
COM
GRY
WHT
ORG
WHT
WHT
N.C.
N.O.
COM.
ORG
ORG
WHT
WHT
BRN
RED
PNK
ANTENNA
MOTOR
MONITOR
SWITCH
GRY
GRY
BLK
YLW
YLW
ORG
YLW
PNK
PNK
IC1
RY2
T1
RY3
CN-G
CN-A
7
1
1
2
CN-B
2
3
4
5
1
PNK
WHT
CN-A
NEUTRAL
EARTH
GRN
GRY
N.O.
COM.
COM.
WHT
GRY
WHT
N.O.
2ND. INTERLOCK
RELAY CONTROL
SWITCH (Oven side)
LATCH
SWITCH
(Cabinet side)
1ST. INTERLOCK
SWITCH
CONTROL UNIT
MONITOR
RESISTOR
2
1
GRN
G R N
G R N
GRY
CN-B
BRN
RED
ORG
WHT
NOTE:
Neutral (ORG) wire must
be connected to the
terminal with black mark
on the oven light socket.
BLACK MARK
ORG
BRN
BLU
LIVE
OVEN LAMP
AND SOCKET
WHT
RED
RED
WHT
RED
L
N
28
R-21AT
6
4
5
1
2
3
6
4
5
1
2
3
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
Figure S-2. Control Panel Circuit
+
+
+
–
+
–
–
–
+
–
+
–
+
–
+
–
+
–
A 3
AC230-240V
50Hz
OVEN LAMP
ANTENNA
MOTOR
FAN MOTOR
TARNTABLE
MOTOR
HIGH VOLTAGE
TRANSFORMER
A 5
A 7
N.O.
N.O.
COM
COM
B 1
B 2
DOOR
SWITCH
G12
G11
G10
G 9
G 1
G 2
G 3
G 4
G 5
G 6
G 7
G 8
7
SELECT
POWER
START
17
18
19
20
15
26
13
14
11
12
SET
CHECK
SIGNAL
DOUBLE
QUANTITY
SELECT
TIME
EXPRESS
DEFROST
STOP/
CLEAR
8
9
0
5
6
3
4
1
2
GND
17
11
1
8
16
9
12
13
14
15
16
07
13
12
11
10
9
8
7
6
5
4
3
2
1
01
02
03
04
05
06
IC3
LIGHT EMITTING DIODE
LED1
IC2
X24C02P
IC1
IZA897DR
AVSS
VREF
AN7
AN6
AN5
AN4
AN3
AN2
AN1
AN0
P55
P54
P53
P52
P51
P50
P47
P46
A0
1
4
8
5
A1
A2
VSS
VCC
TEST
SCL
SDA
P45
P44
P43
P42
INT1
P40
P71
P70
XIN
XOUT
VSS
RESET
VCC
P30
P31
P32
P33
P34
P35
P36
P37
P00
P01
P02
P03
P04
P05
P06
P07
P10
P11
P12
P13
P14
P15
P16
P17
P20
P21
P22
P23
P24
P25
P26
P27
VEE
VRS1
D6 11ES1
D5 11ES1
R90 100 1w
D20
D21
C30 47
µ
/10v
C5 47
µ
/10v
C6 0.1
µ
/50v
C31
C70
R4 4.7k
(J1)
a
b
R6 1k
ZD3
HZ20-1
Q24
2SC1740S
RY3
RY2
JA
R30 100
R71 4.7k
R80 4.7k
R81 4.7k
R82 4.7k
R83 4.7k
D23
D70
R32 2.7k
R33 4.7k
R31 15k
R70 4.7k
R5 4.7k
R88 4.7k
R87 4.7k
R86 4.7k
R85 4.7k
R84 4.7k
c
d
D1
D2
D4
D1-4 11ES1
C10
470
µ
/25v
C11 470
µ
/50v
C21
10
µ
/25v
(J3)
(J5)
(J4)
(J6)
C20
0.1
µ
/50v
Q3
DTC143ES
Q20
DTB143ES
Q21
DTC143ES
CF1
CST4.00MGW
Q22
DTD143ES
Q2
DTA123ES
SP1
Q1 KIA7805P1
C1 2200
µ
/25v
C8 0.1
µ
/50v
C2 0.1
µ
/50v
C9
0.1
µ
/50v
C3 47
µ
/10v
C4 0.1
µ
/50v
R3 4.7k
R40 2.7k
R50 100
NOTE :
: IF NOT SPECIFIED. 1/4W
±
5%
: IF NOT SPECIFIED. 1SS270A
: IF NOT SPECIFIED. 0.01
µ
/ 16v
R51 100
R52 100
R53 100
R54 100
R55 100
R56 100
R57 100
R58 100
C7
D2
HZ4A2
C13 10
µ
/25v
D3
T1
10G471K
ON
DEF.
NO.
X 2
CHECK
R-21AT
29
6
4
5
1
2
3
6
4
5
1
2
3
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
Figure S-3. Printed Wiring Board
1
13
F
R30
R83
(C83)
R82
(C82)
R81
(C81)
R80
R58
R57
R56
R55
R54
R53
R52
R56
R55
R54
R53
R52
R51
R50
(R91)
(R90)
(R89)
(R90)
(R89)
(R69)
(R62)
(R61)
(R64)
(R63)
(JA)
(R1)
(R2)
(R101)
Q1
(14)
(15)
(16)
(16)
(17)
(CT1)
1
8
6
4
(J1)
(RY1)
(D20)
(C12)
(C11)
13
C20
(C13)
(C10)
C21
B
E
Q20
D1
(R90)
D2
D4
D3
B
E
Q3
C2
C9
(R60)
(JG)
(CN - H)
(JD)
(JE)
C70
C8
C4
R4
(JH)
(C60)
(C63)
8
9
(C101)
R71
(ZD1)
R70
(C60)
R88
R87
R86
R85
R87
R86
R85
D70
RY2
RY3
D23
(C80)
(R68)
(J5)
(J6)
C6
C5
Q2
(JJ)
(C64)
(R65)
(R66)
E
B
IC2
R31
R32
E
(Q60)
CN - G
CN - B
MICRO 1
MICRO 2
(CN - D)
R84
IC1
(JF)
(JC)
(JB)
(C10)
(R102)
(C100)
(D100)
(TB2)
(J2)
(D5)
OL
B
B
E
E
Q21
(Q24)
(R6)
(ZD3)
(D6)
SM
TTM
(TB1)
(R100)
(Q23)
(J9)
(D10)
C3
B
E
D21
D22
11
12
T1
P
P
S
VRS1
(VRS2)
POWER
CN - A
POWER
C1
EB
Q22
R40
SP1
10
(C62)
B
R33
R3
C7
ZD2
2
3
6
5
7
(J4)
(J3)
(4)
(R67)
IC3
R5
C30
C31
1
11
2
31
1
33
32
25
20
15
40
50
55
64
3
3
1
1
7
1
60
16
9
8
4
5
8
DIP
DANGER-
CERTAIN PART IS INTENTIONALLY NOT GROUNDED
AND MAY PRESENT A RISK OF ELECTRICAL SHOCK DURING
SERVICING. SERVICE PERSONNEL - DO NOT CONTACT THE
FOLLOWING PARTS WHILE THE APPLIANCE IS ENERGIZED ;
TRANSFORMER
R-21AT
30
PARTS LIST
Note: The parts marked "
∆
" may cause undue microwave exposure.
The parts marked "*" are used in voltage more than 250V.
REF. NO.
PART NO.
DESCRIPTION
Q'TY
CODE
*
*
*
*
*
*
∆
*
*
ELECTRIC PARTS
1- 1
QSW-MA086WRE0
Monitor switch
1
AF
1- 2
QSW-MA085WRE0
2nd. interlock relay control switch
1
AF
1- 3
QSW-MA095WRE0
1st. interlock switch and latch switch
2
AF
1- 4
QACC-A088WRE0
Power supply cord
1
AW
1- 5
FH-DZA086WRK0
High voltage rectifier assembly
1
AT
1- 6
RC-QZA247WRE0
High voltage capacitor
1
BE
1- 7
RMOTEA378WRE0
Fan motor
1
AU
1- 8
RR-WZA022WRE0
Monitor resistor 0.8 ohm 20 W
1
AK
1- 9
QSOCLA022WRE0
Oven lamp socket
1
AG
1-10
RLMPTA069WRE0
Oven lamp
1
AK
1-11
RMOTDA234WRE0
Antenna motor
1
AR
1-12
RTHM-A080WRE0
Thermal cut-out 145 deg. (MAG)
1
AP
1-13
RTHM-A096WRE0
Thermal cut-out 125 deg. (OVEN)
1
AK
1-14
RTRN-A574WRE0
High voltage transformer
1
BQ
1-15
RV-MZA197WRE0
Magnetron
1
BN
1-16
QFS-IA002WRE0
High voltage fuse
1
AQ
1-17
QFS-CQ001YBE0
Fuse 10A
1
AE
1-18
FPWBFA325WRK0
Noise filter
1
AT
CABINET PARTS
2- 1
GCABUA672WRP0
Outer case cabinet
1
BH
2- 2
GDAI-A318WRW0
Base plate
1
AV
2- 3
GCOVHA406WRW0
Base plate cover
1
AQ
2- 4
GLEGPA074WRE0
Foot
2
AC
2- 5
GLEGPA076WRF0
Leg
1
AF
CONTROL PANEL PARTS
3- 1
CPWBFA819WRK0
Control unit
1
BL
3- 1A
QCNCMA234DRE0
3-pin connector (A)
1
AC
3- 1B
QCNCMA275DRE0
2-pin connector (B)
1
AB
3- 1C
QCNCWA057DRE0
12-pin connector (G)
1
AF
C1
VCEAB51EW228M
Capacitor 2200 uF 25V
1
AE
C2
RC-KZA087DRE0
Capacitor 0.1 uF 50V
1
AA
C3
VCEAB31AW476M
Capacitor 47 uF 10V
1
AA
C4
RC-KZA087DRE0
Capacitor 0.1 uF 50V
1
AA
C5
VCEAB31AW476M
Capacitor 47 uF 10V
1
AA
C6
RC-KZA087DRE0
Capacitor 0.1 uF 50V
1
AA
C7
VCKYD11CY103N
Capacitor 0.01 uF 16V
1
AA
C8-9
RC-KZA087DRE0
Capacitor 0.1 uF 50V
2
AA
C10
VCEAB31EW477M
Capacitor 470 uF 25V
1
AC
C11
VCEAB31HW477M
Capacitor 470 uF 50V
1
AE
C13
VCEAB31EW106M
Capacitor 10 uF 25V
1
AA
C20
VCEAB31HW104M
Capacitor 0.1 uF 50V
1
AM
C21
VCEAB31EW106M
Capacitor 10 uF 25V
1
AA
C30
VCEAB31AW476M
Capacitor 47 uF 10V
1
AA
C31
VCKYD11CY103N
Capacitor 0.01 uF 16V
1
AA
C70
VCKYD11CY103N
Capacitor 0.01 uF 16V
1
AA
CF1
RCRS-A012DRE0
Ceramic resonator CST4.00MGW
1
AD
D1-6
VHD11ES1///-1
Diode (11ES1)
6
AB
D20-21
VHD1SS270A/-1
Diode (1SS270A)
2
AA
D23
VHD1SS270A/-1
Diode (1SS270A)
1
AA
D70
VHD1SS270A/-1
Diode (1SS270A)
1
AA
IC1
RH-IZA897DRE0
LSI
1
AV
IC2
RH-IZA521DRE0
IC (X24C02P)
1
AL
IC3
RIC--A025BDE0
IC (KID65004AP)
1
AE
LED1
VHPSL3966T/1B
Light emitting diode
1
AS
Q1
RIC--A022BDE0
IC (KIA7805P1)
1
AE
Q2
VSDTA123ES/-3
Transistor (DTA123ES)
1
AA
Q3
VSDTC143ES/-3
Transistor (DTC143ES)
1
AB
Q20
VSDTB143ES/-3
Transistor (DTB143ES)
1
AC
Q21
VSDTC143ES/-3
Transistor (DTC143ES)
1
AB
Q22
VSDTD143ES/-3
Transistor (DTD143ES)
1
AC
Q24
VS2SC1740S/-3
Transistor (2SC1740)
1
AB
R3-5
VRD-B12EF472J
Resistor 4.7k ohm 1/4W
3
AA
R6
VRD-B12EF102J
Resistor 1k ohm 1/4W
1
AA
R30
VRD-B12EF101J
Resistor 100 ohm 1/4W
1
AA
R31
VRD-B12EF153J
Resistor 15k ohm 1/4W
1
AA
R32
VRD-B12EF272J
Resistor 2.7k ohm 1/4W
1
AA
R33
VRD-B12EF472J
Resistor 4.7k ohm 1/4W
1
AA
R40
VRD-B12EF272J
Resistor 2.7k ohm 1/4W
1
AA
R50-58
VRD-B12EF101J
Resistor 100 ohm 1/4W
9
AA
R70-71
VRD-B12EF472J
Resistor 4.7 ohm 1/4W
2
AA
R80-88
VRD-B12EF472J
Resistor 4.7 ohm 1/4W
9
AA
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