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R-351NW
Sharp R-351NW Manuals
Manuals and User Guides for Sharp R-351NW. We have
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Sharp R-351NW manual available for free PDF download: Service Manual
Sharp R-351NW Service Manual (40 pages)
Service Manual
Brand:
Sharp
| Category:
Microwave Oven
| Size: 2.38 MB
Table of Contents
Microwave Oven
1
Table of Contents
2
Precautions to be Observed before
3
Before Servicing
4
Exposure to Excessive Microwave Energy
3
Before Servicing
3
Chapter 1 . Warning to Service Personnel
4
When the Testing Is Completed
4
After Repairing
4
CHAPTER 2. MICROWAVE MEASUREMENT PROCEDURE Requirements
5
PROCEDURE 1] Requirements:
5
Preparation for Testing
5
Leakage Test
5
Chapter 3. Foreword and Warning Foreword
6
Warning
6
Danger
6
Foreword and Warning
6
Chapter 4. Product Description
7
Specifications
7
Chapter 5. General Information
8
Grounding Instructions
8
Oven Diagram
8
Touch Control Panel
9
Chapter 6. Operation
10
Description of Operating Sequence
10
Oven Schematic
11
Description and Function of Components
12
Chapter 7. Troubleshooting Guide
13
Test Procedures
13
Troubleshooting Chart
13
Chapter 8. Test Procedures
14
A: Magnetron Assembly Test
14
B: Power Transformer Test
14
C: High Voltage Rectifier Test
14
D: High Voltage Capacitor Test
15
E: Temperature Fuse or Thermal Cut-Out Test
15
F: Secondary Interlock Switch Test
15
F: Primary Interlock System Test
16
G: Motor Switch Test
16
H: Blown Monitor Fuse Test
17
I: Noise Filter Test
17
J: Touch Control Panel Assembly Test
17
K: Key Unit Test
18
L: Relay Test
19
M: Defrost Test
19
N: Foil Pattern on the Printed Wiring Board Test
19
Chapter 9 . Touch Control Unit Assembly
21
Outline of Touch Control Panel
21
Servicing for Touch Control Panel
21
Chapter 10. Precautions for Using Lead- Free Solder
23
Precautions for Using Lead
23
Chapter 11. Component Replacement and Adjustment Procedure [1] Warning
24
Component Replacement and
24
Outer Case Removal
25
Power Transformer Removal
25
High Voltage Components Removal (High Voltage Capacitor and High Voltage Rectifier Assembly)
25
Magnetron Removal
25
Positive Lock Connector (No-Case Type) Removal
26
Control Panel Assembly Removal
26
Graphic Sheet and Membrane Switch Replacement
26
Turntable Motor Removal
27
Cooling Fan Motor Removal
27
Power Supply Cord Replacement
28
Door Sensing Switch/Secondary Interlock Switch and Monitor Switch Removal
28
Door Sensing Switch/Secondary Interlock Switch and Monitor Switch Adjustment
29
Door Replacement
29
Chapter 12. Circuit Diagrams
31
Pictorial Diagram (Figure S-1)
31
Control Panel Circuit (Figure S-2)
32
Printed Wiring Board of Power Unit(Figure S-3)
33
Parts List
35
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