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Model
R-671M
Pages
43
Size
2.28 MB
Type
PDF
Document
Service Manual
Brand
Device
Home Appliance / Microwave Oven
File
r-671m.pdf
Date
PREV: Sharp R-662WM (serv.man3) User Manual / Operation Manual

Sharp R-671M Service Manual ▷ View online

R-671M  -  29
SCHEMATIC
NOTE: CONDITION OF OVEN
1.
DOOR CLOSED.
2.
COOKING TIME PROGRAMMED.
3.
MICROWAVE POWER BUTTON PRESSED ONCE(100%).
4.
STRAT BUTTON PRESSED.
Indicates components with potential above 250 V.
SCHEMATIC
NOTE: CONDITION OF OVEN
1.
DOOR CLOSED.
2.
COOKING TIME PROGRAMMED.
3.
GRILL BUTTON PRESSED ONCE.
4.
STRAT BUTTON PRESSED.
Figure O-2 Oven Schematic-Microwave cooking Condition
OL
FM
TTM
OVEN 
LAMP
FAN MOTOR
TURNTABLE MOTOR
GH1:
GRILL HEATING(TOP) 
ELEMENTS
GH2: BOTTOM HEATING ELEMENT
ASYMMETRIC
RECTIFIER
H.V. RECTIFIER
MG:
MAGNETRON
T: HIGH VOLTAGE 
    TRANSFORMER
C:
CAPACITOR
0.97
µ
F
AC2100V
CONTROL UNIT
A7
A5
RY1
RY5
COM.
COM.
COM.
N.O.
N.O.
N.O.
A3
A1
B2
B1 
SW2:
STOP
SWITCH
SW1: MONITORED
          LATCH SWITCH
TC1:
THERMAL
CUT-OUT
(MG.)
TC2:
THERMAL
CUT-OUT
(OVEN)
SW3:
MONITOR 
SWITCH
4700p/ 250V
4700p/ 250V
10M/ 0.5W
NOISE SUPPRESSION COIL
680 k/ 0.5W
0.22
µ
/250V
F2: FUSE 15A
F1: 
FUSE 
F8A
NOISE 
FILTER
L
N
230-240V 
~
 50Hz
BRN/15
BLU/15
G-Y/15
EARTH
NC.
RY4
RY3
RY2
OL
FM
TTM
OVEN 
LAMP
FAN MOTOR
TURNTABLE MOTOR
GH1:
GRILL HEATING(TOP) 
ELEMENTS
GH2: BOTTOM HEATING ELEMENT
ASYMMETRIC
RECTIFIER
H.V. RECTIFIER
MG:
MAGNETRON
T: HIGH VOLTAGE 
    TRANSFORMER
C:
CAPACITOR
0.97
µ
F
AC2100V
CONTROL UNIT
A7
A5
RY1
RY5
COM.
COM.
COM.
N.O.
N.O.
N.O.
A3
A1
B2
B1
SW2:
STOP
SWITCH
SW1: MONITORED
          LATCH SWITCH
TC1:
THERMAL
CUT-OUT
(MG.)
TC2:
THERMAL
CUT-OUT
(OVEN)
SW3:
MONITOR 
SWITCH
4700p/ 250V
4700p/ 250V
10M/ 0.5W
NOISE SUPPRESSION COIL
680 k/ 0.5W
0.22
µ
/250V
F2: FUSE 15A
F1: 
FUSE 
F8A
NOISE 
FILTER
L
N
230-240V 
~
 50Hz
BRN/15
BLU/15
G-Y/15
EARTH
NC.
RY4
RY3
RY2
Figure O-3(a) Oven Schematic-Grill cooking Condition (TOP GRILL mode)
WIRING DIAGRAMS
R-671M  -  30
SCHEMATIC
NOTE: CONDITION OF OVEN
1.
DOOR CLOSED.
2.
COOKING TIME PROGRAMMED.
3.
GRILL BUTTON PRESSED TWICE.
4.
STRAT BUTTON PRESSED.
Indicates components with potential above 250 V.
Figure O-3(b) Oven Schematic-Grill cooking Condition (BOTTOM HEATER mode)
Figure O-3(c) Oven Schematic-Grill cooking Condition (TOP AND BOTTOM mode)
OL
FM
TTM
OVEN 
LAMP
FAN MOTOR
TURNTABLE MOTOR
GH1:
GRILL HEATING(TOP) 
ELEMENTS
GH2: BOTTOM HEATING ELEMENT
ASYMMETRIC
RECTIFIER
H.V. RECTIFIER
MG:
MAGNETRON
T: HIGH VOLTAGE 
    TRANSFORMER
C:
CAPACITOR
0.97
µ
F
AC2100V
CONTROL UNIT
A7
A5
RY1
RY5
COM.
COM.
COM.
N.O.
N.O.
N.O.
A3
A1
B2
B1
SW2:
STOP
SWITCH
SW1: MONITORED
          LATCH SWITCH
TC1:
THERMAL
CUT-OUT
(MG.)
TC2:
THERMAL
CUT-OUT
(OVEN)
SW3:
MONITOR 
SWITCH
4700p/ 250V
4700p/ 250V
10M/ 0.5W
NOISE SUPPRESSION COIL
680 k/ 0.5W
0.22
µ
/250V
F2: FUSE 15A
F1: 
FUSE 
F8A
NOISE 
FILTER
L
N
230-240V 
~
 50Hz
BRN/15
BLU/15
G-Y/15
EARTH
NC.
RY4
RY3
RY2
OL
FM
TTM
OVEN 
LAMP
FAN MOTOR
TURNTABLE MOTOR
GH1:
GRILL HEATING(TOP) 
ELEMENTS
GH2: BOTTOM HEATING ELEMENT
ASYMMETRIC
RECTIFIER
H.V. RECTIFIER
MG:
MAGNETRON
T: HIGH VOLTAGE 
    TRANSFORMER
C:
CAPACITOR
0.97
µ
F
AC2100V
CONTROL UNIT
A7
A5
RY1
RY5
COM.
COM.
COM.
N.O.
N.O.
N.O.
A3
A1
B2
B3
SW2:
STOP
SWITCH
SW1: MONITORED
          LATCH SWITCH
TC1:
THERMAL
CUT-OUT
(MG.)
TC2:
THERMAL
CUT-OUT
(OVEN)
SW3:
MONITOR 
SWITCH
4700p/ 250V
4700p/ 250V
10M/ 0.5W
NOISE SUPPRESSION COIL
680 k/ 0.5W
0.22
µ
/250V
F2: FUSE 15A
F1: 
FUSE 
F8A
NOISE 
FILTER
L
N
230-240V 
~
 50Hz
BRN/15
BLU/15
G-Y/15
EARTH
NC.
RY4
RY3
RY2
SCHEMATIC
NOTE: CONDITION OF OVEN
1.
DOOR CLOSED.
2.
COOKING TIME PROGRAMMED.
3.
GRILL BUTTON PRESSED TREE TIMES.
4.
STRAT KEY BUTTON PRESSED.
WIRING DIAGRAMS
R-671M  -  31
Indicates components with potential above 250 V.
SCHEMATIC
NOTE: CONDITION OF OVEN
1.
DOOR CLOSED.
2.
COOKING TIME PROGRAMMED.
3.
DUAL COOKING BUTTON PRESSED ONCE.
4.
STRAT KEY BUTTON PRESSED.
OL
FM
TTM
OVEN 
LAMP
FAN MOTOR
TURNTABLE MOTOR
GH1:
GRILL HEATING(TOP) 
ELEMENTS
GH2: BOTTOM HEATING ELEMENT
ASYMMETRIC
RECTIFIER
H.V. RECTIFIER
MG:
MAGNETRON
T: HIGH VOLTAGE 
    TRANSFORMER
C:
CAPACITOR
0.97
µ
F
AC2100V
CONTROUNIT
A7
A5
RY1
RY5
COM.
COM.
COM.
N.O.
N.O.
N.O.
A3
A1
B2
B1
SW2:
STOP
SWITCH
SW1: MONITORED
          LATCH SWITCH
TC1:
THERMAL
CUT-OUT
(MG.)
TC2:
THERMAL
CUT-OUT
(OVEN)
SW3:
MONITOR 
SWITCH
4700p/ 250V
4700p/ 250V
10M/ 0.5W
NOISE SUPPRESSION COIL
680 k/ 0.5W
0.22
µ
/250V
F2: FUSE 15A
F1: 
FUSE 
F8A
NOISE 
FILTER
L
N
230-240V 
~
 50Hz
BRN/15
BLU/15
G-Y/15
EARTH
NC.
RY4
RY3
RY2
Figure O-4(a) Oven Schematic-Dual cooking Condition (Microwave and Top Grill mode)
SCHEMATIC
NOTE: CONDITION OF OVEN
1.
DOOR CLOSED.
2.
COOKING TIME PROGRAMMED.
3.
DUAL COOKING BUTTON PRESSED TWICE.
4.
STRAT KEY BUTTON PRESSED.
OL
FM
TTM
OVEN 
LAMP
FAN MOTOR
TURNTABLE MOTOR
GH1:
GRILL HEATING(TOP) 
ELEMENTS
GH2: BOTTOM HEATING ELEMENT
ASYMMETRIC
RECTIFIER
H.V. RECTIFIER
MG:
MAGNETRON
T: HIGH VOLTAGE 
    TRANSFORMER
C:
CAPACITOR
0.97
µ
F
AC2100V
CONTROUNIT
A7
A5
RY1
RY5
COM.
COM.
COM.
N.O.
N.O.
N.O.
A3
A1
B2
B1
SW2:
STOP
SWITCH
SW1: MONITORED
          LATCH SWITCH
TC1:
THERMAL
CUT-OUT
(MG.)
TC2:
THERMAL
CUT-OUT
(OVEN)
SW3:
MONITOR 
SWITCH
4700p/ 250V
4700p/ 250V
10M/ 0.5W
NOISE SUPPRESSION COIL
680 k/ 0.5W
0.22
µ
/250V
F2: FUSE 15A
F1: 
FUSE 
F8A
NOISE 
FILTER
L
N
230-240V 
~
 50Hz
BRN/15
BLU/15
G-Y/15
EARTH
NC.
RY4
RY3
RY2
Figure O-4(b) Oven Schematic-Dual cooking Condition (Microwave and Bottom Heater mode)
WIRING DIAGRAMS
R-671M  -  32
6
45
1
2
3
6
45
1
2
3
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
Figure S-1. Pictrorial Diagram
WIRING DIAGRAMS
BLU
WHT
YLW
WHT
BRN
TC2:
THERMAL 
CUT-OUT(OVEN)
TC1:
THERMAL
 CUT-OUT(HVT)
OL: 
OVEN LAMP 
FM:
FAN MOTOR
ORG
WHT
YLW
WHT
WHT
HIGH VOLTAGE COMPONENTS
H.V.WIRE B
MG: MAGNETRON
H.V.WIRE A
C: 
H.V. 
CAPACITOR
H.V.
RECTIFIER
T: HIGH VOLTAGE
    TRANSFORMER
BLU
1
RED
2
3
GRY
4
5
WHT
6
7
BLU
8
9
YLW
COM
GRY
YLW
WHT
WHT
WHT
GRY
N.C.
NC
COM
SW2: STOP 
SWITCH
CONTROL UNIT
NO
COM
GH1: TOP GRILL 
HEATING ELEMENT
GH2: BOTTOM 
HEATING 
ELEMENT
ORG
WHT
WHT
RED
WHT
GRN
GRN
GRN
BRU
RED
ORG
WHT
TTM: TURNTABLE
MOTOR
SW3:
MONITOR
SWITCH
SW1: PRIMARY
LATCH 
SWITCH
GRY
ORG
BLK
RED
RED
BRN
R
E
D
Y
L
W
BLK
BLK
WHT
CN-A
CN-A
1
1
9
1
1
11
2
CN-B
CN-B
T1
CN-C
2
RED
GRN
RED
RED
BLU
G/Y
WHT
WHT
POWER SUPPLY CORD
NOISE FILTER
LIVE
NEUTRAL
L
TP
F 8 A
TL
RED
15 A
WHT
N
BLK
YLW
RED
BRN
RY5
RY6
RY4
RY1
RY3
RY2
COM
COM
COM
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