R-26STM. Circuit Diagrams - Sharp Home Appliance Service Manual (repair manual)

r-26stm service manual
Model
R-26STM
Pages
4 Few pages! See other manuals at the bottom of the first or last page.
Size
344.98 KB
Type
PDF
Document
Service Manual
Brand
Device
Home Appliance / Microwave Oven / Circuit Diagrams
File
r-26stm.pdf
Date
Next: Sharp R-26STM (serv.man2) Service Manual

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R26STM
13 – 1
R26STM
Service Manual
 
CHAPTER 13. 
CIRCUIT DIAGRAMS
[1] Oven Schematic
                                                                                                      Figure O-1 Oven Schematic-OFF Condition
                                                                                                   Figure O-2 Oven Schematic-ON Condition 
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED.
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED.
2. COOKING TIME PROGRAMMED.
3. START BUTTON PRESSED.
HIGH
VOLTAGE
TRANSFORMER
MAGNETRON
H.V.
RECTIFIER
TURNTABLE MOTOR
FAN
MOTOR
OVEN
LAMP
MONITOR
SWITCH
CONTROL UNIT
2ND.
INTERLOCK
RELAY
1ST. LATCH
SWITCH
2ND. INTERLOCK
RELAY CONTROL
SWITCH
OL
FM
TTM
(RY-1)
(RY-2)
EARTH
230
-
240V
50Hz
BLU
BRN
LIVE
NEUTRAL
G-Y
FUSE T6.3A
N
L
NOISE
SUPPRESSION
COIL
NOISE FILTER
TEMP.
FUSE
H.V.
FUSE
0.6A
B1
B2
NOTE: "
" indicates components with potentials above 250V
H.V.
RECTIFIER
TURNTABLE MOTOR
FAN
MOTOR
OVEN
LAMP
CONTROL UNIT
2ND.
INTERLOCK
RELAY
OL
FM
TTM
(RY-1)
(RY-2)
EARTH
BLU
BRN
LIVE
NEUTRAL
G-Y
N
L
NOISE
SUPPRESSION
COIL
NOISE FILTER
B1
B2
HIGH
VOLTAGE
TRANSFORMER
MAGNETRON
MONITOR
SWITCH
1ST. LATCH
SWITCH
2ND. INTERLOCK
RELAY CONTROL
SWITCH
230
-
240V
50Hz
FUSE T6.3A
TEMP.
FUSE
H.V.
FUSE
0.6A
R26STM
13 – 2
[2] Pictorial Diagram (Figure S-1)
Figure S-1. Pictorial Diagram
BLU
MONITOR
SWITCH
1ST.
LATCH
SWITCH
COM
COM
RED
N.C.
N.O.
N.O.
COM
GRY
GRN
GRN
GRY
TEMPERATURE
FUSE
(OVEN)
2ND.
INTERLOCK
RELAY
C
ONTROL
SWITCH
BLK
ORG
GRN
CONTROL
PANEL
(POWER
UNIT)
(SWITCH
UNIT)
GRY
CN-B
CN-G
CN-H
WH-A
WH-B
2
1
T1
RY1
RY2
GRY
GRY
RED
ORG
WHT
CN-B
2
1
GRN
GRY
COM
N.O.
GRY
HIGH
VOLTAGE
CAPACITOR
HIGH
VOLTAGE
FUSE
H.V.
RECTIFIER
HIGH
VOLTAGE
COMPONENTS
MAGNETRON
TURNTABLE
MOTOR
HIGH
VOLTAGE
TRANSFORMER
RED
RED
GRY
RED
WHT
WHT
ORG
F1:
FUSE
LIVE
NEUTRAL
FAN
MOTOR
BLU
GRY
RED
OVEN
LAMP
RED
BRN
BLU
L
N
WHT
RED
Power
S
upply
Cord
Oven
C
avity
Back
Plate
Screw
Noise
Filter
G / Y
R E D
GRY
WHT
ORG
B L K
R26STM
13 – 3
[3] Control Unit Circuit (Figure S-2)
Figure S-2. Control Unit Circuit 
SEG14 P70
AIN5
P03
IC-1
AIN2
AIN3
AIN4
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
1
48
32
49
64
16
33
Q10
DTA143EKA
R41
15K
DOOR
RST
-5V
INT
BZ
COM
M
GND
CN-B
AC
AC
AC230V
AC240V
50HZ
ab
d
c
VA
P71 P72 AVDD
P01 P00 RESET X2 X1 VSS VDD XT2 XT1 IC P53 P52 P51 P50
P02
BL
17
Q30 DTA143EKA
:I
F
NOT
SPECIFIED,
1/10W,
±5
%
:I
F
NOT
SPECIFIED,
0.1uF
/50V
:I
F
NOT
SPECIFIED,
1SS270A
:NOT
USED
PARTS
+
-
R4
4.
7K
Q20
DTA143EKA
C20
H2
H4
H5
H6
G4
G6
P25
P26
5
6
[NOTE]
Q1 DTA123EKA
P25
P26
P52
P50
15K
R73
R75
15K
H1
P32
P31
P32
P31
CN-H
H3
B7B-PH-K-S
B2
RY1
OMIF-S-112LM
OMIF-S-112LM-SP
RY2
Q21
DTD143ES
+
-
D40
Q22
SP1
+
-
T1
D3
D4
D1
D2
D1
--
D4
1N4002
x
4
B1
R1
330,1/2W
DTA123JS
R3
27,1/4W
Q2
2SB1238
LD1
LD2
LD3
PA145DR
R2
470,1W
D5
D6
ZD3
R12
HZ12C-1
330,1/4W
Q23
2SB1238
C60
330pF/50V
C62
330pF/50V
R60
R61
R62
R63
A-3
A-4
A-5
A-6
B-2
B-3
A-1
A
B
C
SW100
WH-A
A-2
C100
C101
R100
R101
C100,C101:
0.01uF/16V
R100,R101:
100K,1/4W
7PIN
WIRE
HARNESS
LD4
SEG7 SEG8 SEG9 SEG10 SEG11
R20
110,1W
P24
P22
G3/H7
G2
15K
R72
R71
15K
A-7
B-1
P24
P22
C-1
C-2
C-3
3PIN
B3B-XASK-1
3PIN
WHB-
3PIN
WIRE
HARNESS
C10F
()
4MHz
(C61)
(C63)
P23
P33
H8
G5
G1
G7
G9
(R74)
G8
G10
P51
P53
(R77)
(R79)
SWITCH
UNIT
POWER
U
NIT
CPU
U
NIT
EXPRESS
COOK
MEAT
JOINT
TIME
WEIGHT
MINCED
MEAT
WHOLE
POULTRY
POWER
LEVEL
STOP
CLEAR
START
AUTO
MINUTE
SW1
SW2
SW3
SW4
SW5
SW6
SW7
OVEN
LAMP
FAN
MOTOR
TURNTABLE
MOTOR
HIGH
VOLTAGE
TRANSFORMER
2ND.
INTERLOCK
RELAY
CONTROL
SWITCH
LIQUID
CRYSTAL
DISPLAY
R26STM
13 – 4
[4] Printed Wiring Board 
LD1
LD2
LD3
LD4
DIP
CN-G
IC SIDE
10
1
1
2
CN-B
D22
CN-H
D40
Q2
R1
C12
ZD2
(J1)
ZD3
R20
JUMP2
JUMP3
R2
BE
JUMP1
JUMP4
(JUMP A)
SP1
C6
+
+
+
-
-
-
R3
D5
D6
C1
R21
C5
R22
T1
VRS1
P
S
D20
Q23
B
B
B
E
E
E
C21
Q22
Q21
D2
D1 D3 D4
ZD1
RY1
RY2
D21
d
a
b
c
Figure S-3. Printed Wiring Board of Power Unit
Figure S-4. Printed Wiring Board of Switchr Unit
Page of 4
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