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R-CD1200M
Sharp R-CD1200M Service Manual
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RCD1200M
11
–
3
BRN
1
2
3
WHT
CN1
Main
wire
harness
NOTE:
The
red
and
blue
wire
leads
to
the
cabinet
side
terminals
of
R
Y2
and
RY3
should
go
through
inside
the
core
of
CT1
RELA
Y
UNIT
SWITCHING
POWER
SUPPL
Y
UNIT
Main
wire
harness
Main
wire
harness
Main
wire
harness
RED
1
2
GRN
CN21
RED
1
2
GRN
CN-E
RED
WHT
1
2
3
4
5
BLK
CN-A
DC
harness
12
DC
harness
12
DC
harness
12
CPU
harness
Grounding
wire
Primary
interlock
relay
RY1
Cook
relay
(1)
RY2
Cook
relay
(2)
RY3
RED
RED
BLU
BLU
BLK
BLK
YL
W
BRN
GRN
1
2
3
13
12
11
10
9
8
7
6
5
4
3
2
1
ORG
RED
YL
W
YL
W
YL
W
YL
W
YL
W
YL
W
YL
W
YL
W
YL
W
YL
W
YL
W
YL
W
CN-C
CN-D
CT1
(Blue
case)
(Blue
case)
37
39
Table of Contents
default chapter
2
Table of Contents
2
Before Servicing
3
Exposure to Excessive Microwave Ener
3
Precautions to be Observed before
3
After Repairing
4
When the Testing Is Completed
4
Chapter 2. Microwave Measurement
5
Chapter 3. Foreword and Warning
6
Chapter 4. Product Description
7
Specifications
7
Grounding Instructions
7
Oven Diagram
8
Chapter 5. Operation Description of Operating Se- Quence
9
Oven Schematic
10
Description and Function of Components
11
Chapter 6. Troubleshooting Guide
13
Chapter 7. Test Procedures
16
A: Magnetron Assembly Test
16
B: Power Transformer Test
16
C: High Voltage Rectifier (1) And/Or (2) Test
16
D: High Voltage Capacitor (1) And/Or (2) Test
17
E: Secondary Interlock Switch (1) And/Or (2) Test
17
F: Primary Interlock System Test
17
G: Monitor Switch (1) And/Or (2) Test
18
H: Blown Minitor Fuse Test
18
I: Fuse 12A (1) (2) Test
19
J: Temperature Fuse Test
19
K: Magnetron Thermistor Test
19
L: Exhaust Thermistor Test
19
M: Noise Filter Test
20
N: Key Unit Test
20
O: Control Unit Test
21
P: Power Unit Test
21
Q: Relay Unit Test
21
R: Antenna Sensor Test
22
S: Microwave Sensor Test
22
Special Function for Servicing
23
Servicing for Brinted Wiring Boards
26
Chapter 9. Precautions for Using Lead
27
Chapter 10. Component Replacement and Adjustment Procedure Warnings
28
Outer Case and Rear Cover Removal
28
Power Transformers (1) And/Or (2) Removal
29
Magnetrons (1) And/Or (2) Removal
29
Magnetron Thermistor Assembly Replacement
29
High Voltage Capacitor and High Voltage Rectifier Assembly Removal
29
Power Supply Cord Replacement
30
How to Release the Positive Lock Connector
30
Exhaust Fan Removal
31
Fan Motors Removal
31
Antenna Motors (Upper and Lower) Removal
31
Power Unit Removal
31
Relay Unit Removal
31
Control Panel Assembly and Control Unit Removal
31
Door Sensing Switch/Secondary Interlock Switches (1), (2) and Monitor Switches (1), (2) Replacement
32
Door Sensing Switch/Secondary Interlock Switches (1), (2) and Monitor Switches (1), (2) Adjustment
32
Door Replacement
33
Door Disassembly
34
Circuit
36
Parts List
43
4
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Sharp R-CD1200M Specifications
General
Brand
Sharp
Model
R-CD1200M
Category
Microwave Oven
Language
English
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