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Microwave Oven
R-350Y
Sharp R-350Y User Manual
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14 – 1
6HUYLFH0DQXDO
CHAPTER 14.
CIRCUIT DIAGRAMS
[1] Oven Schematic
Figure O-1 Oven Schematic-OFF Condition
Figure O-2 Oven Schematic-ON Condition
SCHEMA
TIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED.
2. CLOCK APPEARS ON DISPLA
Y
.
SCHEMA
TIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED.
2. COOKING TIME PROGRAMMED.
3. ST
ART KEY TOUCHED.
EARTH
BLU
BRN
NEUTRAL
LIVE
FUSE
F10A
N
L
230-240V
50Hz
2.2
μ
F
/AC250V
NOISE
SUPPRESSION
COIL
LINE
BYP
ASS
CAPACITOR
LINE
BYP
ASS
CAPACITOR
0.0047
μ
F
/AC250V
0.0047
μ
F
/AC250V
RY
-1
RY
-2
RY
-
3
F-3
F-2
F-1
TURNT
ABLE
MOTOR
FAN
M
O
TO
R
OVEN
LAMP
MONITOR
SWITCH
OL
FM
TTM
MAGNETRON
1ST
.
LA
TCH
SWITCH
2ND.
INTERLOCK
RELA
Y
CONTROL
SWITCH
CONTROL
UNIT
HUMIDITY
SENSOR
INVERTER
UNIT
A1
A2
A3
A1
C1
C2
C3
A7
A5
A3
B1
B2
OVEN
TEMP
FUSE
NOISE
FIL
TER
UNIT
LINE
CROSS
CAP
ACITOR
EARTH
BLU
BRN
NEUTRAL
LIVE
FUSE
F10A
N
L
230-240V
50Hz
2.2
μ
F
/AC250V
NOISE
SUPPRESSION
COIL
LINE
BYP
ASS
CAPACITOR
LINE
BYP
ASS
CAPACITOR
0.0047
μ
F
/AC250V
0.0047
μ
F
/AC250V
RY
-1
RY-2
RY
-3
F-3
F-2
F-1
TURNT
ABLE
MOTOR
FAN
M
O
TO
R
OVEN
LAMP
MONITOR
SWITCH
OL
FM
TTM
MAGNETRON
1ST
.
LA
TCH
SWITCH
2ND.
INTERLOCK
RELA
Y
CONTROL
SWITCH
CONTROL
UNIT
HUMIDITY
SENSOR
INVERTER
UNIT
A1
A2
A3
A1
C1
C2
C3
A7
A5
A3
B1
B2
OVEN
TEMP
FUSE
NOISE
FIL
TER
UNIT
LINE
CROSS
CAP
ACITOR
R-350Y(S)
28
30
Table of Contents
Default Chapter
1
Microwave Oven
1
Table of Contents
2
Chapter 1. Before Servicing
3
Tion
3
Caution Microwave Radiation
3
Warning
3
Chapter 2. Warning to Service Personnel
4
Before Servicing
4
When the Testing Is Completed
5
After Repairing
5
Before Replacing the Printed Wiring Board
5
Chapter 3. Product Specifications
6
Chapter 4. Appearance View Oven
7
Touch Control Panel
7
Chapter 5. Operation Sequence 1] off Condition
8
Chapter 5. Operation Sequence off Condition
8
Microwave Cooking Condition
8
Sensor Cooking Condition
8
Power Output Reduction
9
Chapter 6. Function of Important Com
10
Door Open Mechanism
10
1St. Latch Switch and 2Nd. In- Terlock Relay Control Switch
10
Monitor Switch
10
Fuse F10A
10
Inverter Unit
10
Oven Temperature Fuse
10
Turntable Motor
10
Fan Motor
10
Noise Filter
10
Chapter 7. Troubleshooting Guide
11
Test Procedures
11
Watts
12
Chapter 8. Test Procedures
12
A: Magnetron (Mg) Test
12
B: Switch Test
13
C: Temperature Fuse Test
13
D: Motor Winding Test
13
E: Fuse F10A
13
F: Noise Filter Test
14
G: Touch Control Panel Assembly Test
14
H: Key Unit (Membrane Switch) Test
15
I: Procedures to be Taken When the Fuse F1 on the Printed Wiring Board (Pwb) Is Open
15
J: Humidity Sensor Test
15
Chapter 9. Check in the Event of no Microwave Cooking
18
Chapter 10. Servicing for Touch con
20
Trol Panel
20
Servicing for Touch Control Panel
20
Chapter 11. Precautions for Using Lead-Free Solder
21
And Adjustment Procedure 1] before Operating
22
Chapter 12. Component Replacement and Adjustment Procedure before Operating
22
Outer Case Cabinet Removal
22
Inverter Unit Replacement
23
Magnetron Removal
23
Positive Lock Connector (No-Case Type) Removal
24
Control Panel Assembly Removal
24
Graphic Sheet and Membrane Switch Replacement
24
Turntable Motor Removal
24
Cooling Fan Motor Removal
25
Power Supply Cord Replacement
25
1St. Latch Switch, 2Nd. Interlock Relay Control Switch and Monitor Switch Removal
26
1St. Latch Switch, 2Nd. Interlock Relay Control Switch and Monitor Switch Adjustment
26
Microwave Measurement
26
Door Replacement
27
Chapter 13. Microwave Measurement
28
Oven Schematic
29
CHAPTER 14. CIRCUIT DIAGRAMS 1] Oven Schematic
29
Circuit Diagrams
29
Pictorial Diagram (Figure S-1)
30
Control Unit Circuit (Figure S-2)
31
Printed Wiring Board (Figure S-3)
32
Inverter Unit Circuit (Figure S-4)
33
Parts List
35
Oven Parts
37
Control Panel Parts
39
Door Parts
39
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Sharp R-350Y Specifications
General
Brand
Sharp
Model
R-350Y
Category
Microwave Oven
Language
English
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