Sharp R-1900J - Page 37

R1900J
11 – 2
NOTE: The relay RY4 will open if the oven is not operated for 3 minutes or more. And the oven condition will go back to one of Figure O-1(a).
Figure O-1c Oven Schematic-OFF condition after the oven door is closed.
Figure O-2 Oven Schematic-Cooking Condition
SCHEMATIC
NOTE: CONDITION OF OVEN
6. DOOR CLOSED.
7. “0” APPEAR ON DISPLAY.
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED.
2. MANUAL/ REPEAT PAD TOUCHED.
3. COOKING TIME PROGRAMMED.
4. STRAT PAD TOUCHED.
NEUTRAL
N
COOK
RELAY (1)
MAGNETRON
TEMP. FUSE (1)
MAGNETRON
TEMP. FUSE (2)
MAGNETRON
THERMISTOR (1)
MAGNETRON
THERMISTOR (2)
EXHAUST
THERMISTOR
ANT.
SENSOR (1)
3A FUSE
T1
RY1
RY4
D1
F1 F3
F4
H3
H2H1G7G6G4G3G2G1G5
F6 F8 F10
F26 F24 F22
F5 F7 F9 F11 F13 F15 F17 F19 F21 F23 F25 F12 F14 F18 F16 F20
D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13
E1
A3 A5
A1
C3 C1
E2
OVEN LAMP
ANTENNA MOTOR (1)
ANTENNA MOTOR (2)
ANT.
SENSOR (2)
MICROWAVE
SENSOR
SECONDARY INTERLOCK
SWITCH (1)
SECONDARY INTERLOCK
SWITCH (2)
EXHAUST
MOTOR
(DC24V)
POWER
TRANSFORMER (1)
POWER
TRANSFORMER (2)
H. V.
CAPACITOR (1)
CT1
H. V.
ASYMMETRIC
RECTIFIER (1)
H. V.
RECTIFIER (1)
MAGNETRON (1)
H. V.
CAPACITOR (2)
CAPACITOR: 1uF
H. V.
ASYMMETRIC
RECTIFIER (2)
H. V.
RECTIFIER (2)
MAGNETRON (2)
MONITOR SWITCH (2) MONITOR SWITCH (1)
COOK
RELAY (2)
OVEN
TEMP.
FUSE
PRIMARY
INTERLOCK
RELAY
DOOR
SENSING
SWITCH
RELAY UNIT
CONTROL UNIT
EM
EF
FM
FM
OL
AM
AM
RY2
RY3
AC 230 -240V
50Hz
LINE
L
GRN
(WEAK POINT)
SWITCHING POWER SUPPLY UNIT
Noise Filter
FAN MOTOR
(DC24V)
EXHAUST FAN
(DC24V)
FA
F
FA
F
WEAK POINT (1)
WEAK POINT (2)
(WEAK POINT)
(WEAK POINT)
NEUTRAL
N
COOK
RELAY (1)
MAGNETRON
TEMP. FUSE (1)
MAGNETRON
TEMP. FUSE (2)
MAGNETRON
THERMISTOR (1)
MAGNETRON
THERMISTOR (2)
EXHAUST
THERMISTOR
ANT.
SENSOR (1)
3A FUSE
T1
RY1
RY4
D1
F1 F3
F4
H3
H2H1G7G6G4G3G2G1G5
F6 F8 F10
F26 F24 F22
F5 F7 F9 F11 F13 F15 F17 F19 F21 F23 F25 F12 F14 F18 F16 F20
D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13
E1
A3 A5
A1
C3 C1
E2
OVEN LAMP
ANTENNA MOTOR (1)
ANTENNA MOTOR (2)
ANT.
SENSOR (2)
MICROWAVE
SENSOR
SECONDARY INTERLOCK
SWITCH (1)
SECONDARY INTERLOCK
SWITCH (2)
EXHAUST
MOTOR
(DC24V)
POWER
TRANSFORMER (1)
POWER
TRANSFORMER (2)
H. V.
CAPACITOR (1)
CT1
H. V.
ASYMMETRIC
RECTIFIER (1)
H. V.
RECTIFIER (1)
MAGNETRON (1)
H. V.
CAPACITOR (2)
CAPACITOR: 1uF
H. V.
ASYMMETRIC
RECTIFIER (2)
H. V.
RECTIFIER (2)
MAGNETRON (2)
MONITOR SWITCH (2) MONITOR SWITCH (1)
COOK
RELAY (2)
OVEN
TEMP.
FUSE
PRIMARY
INTERLOCK
RELAY
DOOR
SENSING
SWITCH
RELAY UNIT
CONTROL UNIT
EM
EF
FM
FM
OL
AM
AM
RY2
RY3
AC 230 -240V
50Hz
LINE
L
GRN
(WEAK POINT)
SWITCHING POWER SUPPLY UNIT
Noise Filter
FAN MOTOR
(DC24V)
EXHAUST FAN
(DC24V)
FA
F
FA
F
WEAK POINT (1)
WEAK POINT (2)
(WEAK POINT)
(WEAK POINT)