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Microwave Oven
R-3A53
Sharp R-3A53 User Manual
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MISCELLANEOUS
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KIT
(CPADBAlOSWRKO)
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Fi-3A53B,
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Not
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SPAKCB767WREO
R3A53,Austraha
SPAKCB775WREO.R3A53B,Australia
SPAKCB774WREO:R3A53,New
Zealand
1
2
I
3
4
5
6
\
‘91
0
SHARP
CORP.
(7K0.93E)
Printed
in
Australia
46
46
Table of Contents
Table of Contents
1
Caution, Microwave
2
General Important Information
2
General Information
3
Product Specifications
3
Touch Control Panel
4
Appearance View
4
Operating Sequence
5
Off Condition
5
Microwave Cooling Condition
5
High Cooking
5
Monitor Switch SW3
6
Function of Imporatnt Components
6
Door Open Mechanism
6
Medium High, Medium, Medium Low, Low Cooking
6
Asymmetric Rectifier
7
Noise Filter
7
Temperature Fuse
7
Fan Motor FM
7
Servicing
8
Troubleshooting Guide
8
Microwave Output Power
11
Magnetron Test
11
Test Procedures
11
Measuring Condition
12
Power Transformer Test
14
High Voltage Rectifier Assembly Test
15
High Voltage Capacitor Test
15
Switch Test
16
Temperature Fuse Test
16
Monitor Resistor Test
17
Motor Winding Test
17
Live Test for Motor Windings
17
Test Procedure
17
Noise Filter Test
18
Blown Fuse
18
Touch Control Panel Assembly Test
19
Procedures to be Taken When the Foil Pattern
19
Touch Control Panel Assembly
20
Outlien of Touch Control Panel
20
Key Unit
20
Control Unit
20
Descriptoin of LSI
21
Segment Data Signal
21
Signal Coming from Touch Key
23
Auto Clear Terminal
23
Magnetron High-Voltage Circuit Driving Signal
23
Digit Selection Signal
23
Precautions for Handing Electronic Components
25
Shapes of Electronic Components
25
Servicing of Touch Control Panel
25
Servicing Tools
25
Adjustment Procedure
26
Outer Case Removal
26
Component Replacement
26
Power Transformer Removal
27
High Voltage Components Removal
27
Magnetron Removal
28
Control Panel Replacement
28
Fan Motor Assembly Removal
28
Turntable Motor Replacement
29
Turntable Motor Cover Removal
29
Turntable Motor Cover Re-Install
29
Washer and O-Ring Installation and Grease Applying
29
Oven Lamp Socket Removal
30
Power Supply Cord Replacement
30
How to Release the Positive Lock Connector
31
Latch Switches Adjustment
32
Stop Switch and Monitor Switch Removal
32
1St Latch Switch, 2Nd Latch Switch
32
Door Replacement and Adjustment
33
Choke Cover Removal
33
Door Adjustment
33
Door Parts Removal
33
Requirement
34
Preparation for Testing
34
Microwave Measurement
34
Test Points on Control Unit
35
Test Data at a Glance
35
Oven Schematic
36
Ppictrial Diagram
39
Control Panel Circuit
40
Printed Wiring Board
41
Electrical Parts
42
Cabinet Parts
42
Control Panel Parts
42
Parts List
42
Oven Parts
43
Door Parts
43
Miscelaneous
44
Screws and Washer
44
How to Order Replacement Parts
44
Packing and Accessories
47
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Sharp R-3A53 Specifications
General
Brand
Sharp
Model
R-3A53
Category
Microwave Oven
Language
English
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