Read Sharp R-297 Service Manual online
R-297ST
23
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED.
2. COOKING TIME PROGRAMMED.
3. START KEY TOUCHED.
1. DOOR CLOSED.
2. COOKING TIME PROGRAMMED.
3. START KEY TOUCHED.
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED.
2. CLOCK APPEARS ON DISPLAY.
1. DOOR CLOSED.
2. CLOCK APPEARS ON DISPLAY.
NOTE: " " indicates components with potential above 250V.
Figure O-1 Oven Schematic-OFF Condition
Figure O-2 Oven Schematic-ON Condition
HIGH VOLTAGE
TRANSFORMER
WITH THERMAL
CUT-OUT 150
ß
C
MAGNETRON
H.V. RECTIFIER
TURNTABLE MOTOR
FAN MOTOR
OVEN LAMP
MONITOR SWITCH
CONTROL
UNIT
UNIT
1ST. LATCH
SWITCH
SWITCH
2ND. INTERLOCK
RELAY CONTROL
SWITCH
RELAY CONTROL
SWITCH
B1
B2
A3
OL
FM
TTM
COM.
RY-1
RY-1: SURGE RELAY
SURGE RELAY UNIT
D1
C1
+
R1 - R4
ZD1 - ZD2
RS: SURGE
RESISTOR
N.O.
A1
RY-2:
2ND.
INTERLOCK
RELAY
2ND.
INTERLOCK
RELAY
H.V. FUSE
0.6A
CAPACITOR
0.91
F
AC2100V
TEMPERATURE
FUSE
120
ß
C (OVEN)
EARTH
230 - 240V
50Hz
BLU
BRN
LIVE
NEUTRAL
G-Y
FUSE
T6.3A
N
N
L
L
LINE CROSS CAPACITOR
0.068
/AC250V
NOISE SUPPRESSION COIL
LINE BYPASS
CAPACITOR
0.0022
/AC250V
LINE BYPASS
CAPACITOR
0.0022
/AC250V
NOISE FILTER
HVT
HIGH VOLTAGE
TRANSFORMER
WITH THERMAL
CUT-OUT 150
ß
C
MAGNETRON
H.V. RECTIFIER
TURNTABLE MOTOR
FAN MOTOR
OVEN LAMP
MONITOR SWITCH
CONTROL
UNIT
UNIT
1ST. LATCH
SWITCH
SWITCH
2ND. INTERLOCK
RELAY CONTROL
SWITCH
RELAY CONTROL
SWITCH
B1
B2
OL
FM
TTM
COM.
RY-1
D1
C1
+
R1 - R4
ZD1 - ZD2
RS: SURGE
RESISTOR
N.O.
A1
RY-2:
2ND.
INTERLOCK
RELAY
2ND.
INTERLOCK
RELAY
H.V. FUSE
0.6A
CAPACITOR
0.91
F
AC2100V
TEMPERATURE
FUSE
120
ß
C (OVEN)
EARTH
230 - 240V
50Hz
BLU
BRN
LIVE
NEUTRAL
G-Y
FUSE
T6.3A
N
L
L
LINE CROSS CAPACITOR
0.068
/AC250V
NOISE SUPPRESSION COIL
LINE BYPASS
CAPACITOR
0.0022
/AC250V
LINE BYPASS
CAPACITOR
0.0022
/AC250V
NOISE FILTER
HVT
A3
RY-1: SURGE RELAY
SURGE RELAY UNIT
N
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