Sharp R-875 Service Manual

R-875/885 - 35
Note:
AC CORD CONNECTION
BRN : BROWN
BLU : BLUE
G-Y : GREEN AND YELLOW STRIPE
/15 : SECTIONAL AREA OF 1.5mm
2
MIN.
" " Indicates components with potential
above 250 V.
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR OPENED.
2. "SELECT LANGUAGE " APPEARS ON DISPLAY.
Figure O-1(c) Oven Schematic-OFF Condition after the oven door is closed.
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED. 2. STOP BUTTON PRESSED. 3. " . O" APPEARS ON DISPLAY.
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED.
2. PLUGGED IN OVEN.
3. NOTHING APPEARS ON DISPLAY.
Figure O-1(a) Oven Schematic-OFF Condition right after the oven is plugged in.
Figure O-1(b) Oven Schematic-OFF Condition when the oven door is opened.
OL
CM
TTM
OVEN LAMP
CONVECTION  MOTOR
FAN MOTOR
TURNTABLE MOTOR
GH1: TOP GRILL HEATING ELEMENT
GH2: BOTTOM HEATING ELEMENT
H.V. RECTIFIER
MG: MAGNETRON
T: HIGH VOLTAGE  TRANSFORMER
T/C TRANSFORMER
C: CAPACITOR 1.13 µF AC2100V
CONTROL UNIT
A9
A7
RY7
RY5
COM. COM. COM.
N.O.
N.O.
COM.
N.O. N.O.
A3
E1 E3
E5 E7
A1
B2
C3 C1
A5
B1
SW2:
STOP SWITCH
SW1: MONITORED LATCH SWITCH
THERMISTOR
TC1: 
MG.
THERMAL
CUT-OUT
TC2:
OVEN
THERMAL
CUT-OUT
SW3:
MONITOR 
SWITCH
4700p/ 250V
4700p/ 250V
10M/ 0.5W
NOISE SUPPRESSION COIL
680 k/ 0.5W
0.22µ/250V
F1: FUSE 20A
F2: FUSE F8A
NOISE 
FILTER
LN
230V ~ 50Hz
BRN/15BLU/15
G-Y/15 
EARTH
LIVENEUTRAL
NC.
NC.
ASYMMETRIC
RECTIFIER
RY6
RY1 RY2 RY3 RY4
FM
OL
CM
TTM
OVEN LAMP
CONVECTION  MOTOR
FAN MOTOR
TURNTABLE MOTOR
GH1: TOP GRILL HEATING ELEMENT
GH2: BOTTOM HEATING ELEMENT
H.V. RECTIFIER
MG: MAGNETRON
T: HIGH VOLTAGE  TRANSFORMER
T/C TRANSFORMER
C: CAPACITOR 1.13 µF AC2100V
CONTROL UNIT
A9
A7
RY7
RY5
COM. COM. COM.
N.O.
N.O.
COM.
N.O. N.O.
A3
E1 E3
E5 E7
A1
B2
C3 C1
A5
B1
SW2:
STOP SWITCH
SW1: MONITORED LATCH SWITCH
THERMISTOR
TC1: 
MG.
THERMAL
CUT-OUT
TC2:
OVEN
THERMAL
CUT-OUT
SW3:
MONITOR 
SWITCH
4700p/ 250V
4700p/ 250V
10M/ 0.5W
NOISE SUPPRESSION COIL
680 k/ 0.5W
0.22µ/250V
F1: FUSE 20A
F2: FUSE F8A
NOISE 
FILTER
LN
230V ~ 50Hz
BRN/15BLU/15
G-Y/15 
EARTH
LIVENEUTRAL
NC.
NC.
ASYMMETRIC
RECTIFIER
RY6
RY1 RY2 RY3 RY4
FM
OL
CM
TTM
OVEN LAMP
CONVECTION  MOTOR
FAN MOTOR
TURNTABLE MOTOR
GH1: TOP GRILL HEATING ELEMENT
GH2: BOTTOM HEATING ELEMENT
H.V. RECTIFIER
MG: MAGNETRON
T: HIGH VOLTAGE  TRANSFORMER
T/C TRANSFORMER
C: CAPACITOR 1.13 µF AC2100V
CONTROL UNIT
A9
A7
RY7
RY5
COM. COM. COM.
N.O.
N.O.
COM.
N.O. N.O.
A3
E1 E3
E5 E7
A1
B2
C3 C1
A5
B1
SW2:
STOP SWITCH
SW1: MONITORED LATCH SWITCH
THERMISTOR
TC1: 
MG.
THERMAL
CUT-OUT
TC2:
OVEN
THERMAL
CUT-OUT
SW3:
MONITOR 
SWITCH
4700p/ 250V
4700p/ 250V
10M/ 0.5W
NOISE SUPPRESSION COIL
680 k/ 0.5W
0.22µ/250V
F1: FUSE 20A
F2: FUSE F8A
NOISE 
FILTER
LN
230V ~ 50Hz
BRN/15BLU/15
G-Y/15 
EARTH
LIVENEUTRAL
NC.
NC.
ASYMMETRIC
RECTIFIER
RY6
RY1 RY2 RY3 RY4
FM
SCHEMATIC DIAGRAMS

Sharp R-875 Specifications

General

Brand	Sharp
Model	R-875
Category	Microwave Oven
Language	English