Home
Sharp
Microwave Oven
R-820BK
Sharp R-820BK Service Manual
5
of 1
of 1 rating
48 pages
Give review
Manual
Specs
To Next Page
To Next Page
To Previous Page
To Previous Page
Loading...
40
R-820BK
R-820BW
6
45
1
2
3
6
45
1
2
3
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
Figure S-4. Printed Wiring Board of Power Unit
DIP
D8
3
2
3
12
1
1
15
18
4
D6
R4
CN - C
CN - D
CN - B
CN - A
D5
R5
AC
AC
VRS1
6
FAN
CON
RY1
RY5
LOT
NO.
F
RY6
RY3
T - H
RY4
B - H
RY2
(J1)
T1
D12
D4
S
6
8
14
P
D2
D7
5
MICRO
SP1
R6
R3
C4
C3
C5
C2
B
B
B
E
E
1
E
Q3
R2
R1
D1
D3
D11
C1
ZD1
Q2
Q1
D9
D10
41
43
Table of Contents
Table of Contents
1
Precautions to be Observed before and During Servicing to Avoid Possible Exposure to Excessive Microwave Energy
2
Before Servicing
2
After Repairing
3
Warning to Service Personnel
3
Requirements
4
Preparation for Testing
4
Leakage Test
4
Microwave Measurement Procedure
4
Grounding Instructions
6
Specification
6
General Information
6
Oven Diagram
7
Touch Control Panel
7
Description of Operating Sequence
8
Off Condition
8
Microwave Cooking Condition
8
Operating Sequence
8
Top and Bottom Heater Mode
9
Top Heater Mode
9
Convection Time Cooking Condition
9
Convection Cooking Condition with Preheat
9
On/Off Time Ratio
10
Fire Sensing Feature (Microwave Mode)
10
Roast Cooking Condition
10
Oven Schematic-OFF Condition
11
Oven Schematic-Microwave Cooking Condition
11
Oven Schematic-Grill Cooking Condition
12
Description and Function of Components
14
Door Open Mechanism
14
Turntable Motor
14
Cooling Fan Motor
14
Bottom Heater
15
Convection Cooking System
15
Troubleshooting Guide
15
Test Procedure
16
Test Procedures
17
Magnetron Assembly Test
17
Microwave Output Power
17
Power Transformer Test
17
High Voltage Rectifier Test
18
High Voltage Capacitor Test
18
Thermal Cut-Out Test 170˚C (Oven)
18
Secondary Interlock Switch Test
19
Primary Interlock System Test
19
Door Sensing Switch
19
Primary Interlock Relay (Ry2)
19
Insulation Resistance
20
Resistance of Heater
20
Top Heaters and Bottom Heater Test
20
Blown Monitor Fuse Test
20
Thermistor Test
21
Checking Temperature in the Convection Mode
21
Touch Control Panel Assembly Test
21
Key Unit Test
22
Relay Test
23
Compu Defrost Test
24
Foil Pattern on the Printed Wiring Board Test
24
Outline of Touch Control Panel
26
Description of Lsi
27
Servicing of Touch Control Panel
31
Precautions for Handling Electronic Components
31
Shapes of Electronic Components
31
Servicing
31
Warning against High Voltage
32
Warning for Wiring
32
Outer Case Removal
32
Component Replacement and Adjustment Procedure
32
Power Transformer Removal
33
High Voltage Rectifier Assembly and High Voltage Capacitor Removal
33
Magnetron Removal
33
Control Panel Assembly Removal
33
Turntable Motor Removal
34
Connector (No-Case Type) Removal
34
Oven Lamp and Lamp Socket Removal
34
Cooling Fan Motor Removal
35
Convection Motor Removal
35
Thermistor Removal
36
Power Supply Cord Replacement
36
Gril Heater (Top Heater) Removal
36
Bottom Heater Removal
36
Pictorial Diagram
36
Door Replacement
37
Latch Switch Adjustments
37
Door Disassembly
37
Control Panel Parts
43
Electric Parts
43
Cabinet Parts
43
Power Unit Circuit
43
Cpu Unit Circuit
43
Parts List
43
Oven Parts
44
Door Parts
44
Miscellaneous
44
Screws,Nuts and Washers
45
How to Order Replacement Parts
45
Packing and Accessories
45
Oven and Cabinet Parts
46
Other manuals for Sharp R-820BK
Operation Manual With Cookbook
28 pages
5
Based on 1 rating
Ask a question
Give review
Questions and Answers:
Need help?
Do you have a question about the Sharp R-820BK and is the answer not in the manual?
Ask a question
Sharp R-820BK Specifications
General
Brand
Sharp
Model
R-820BK
Category
Microwave Oven
Language
English
Related product manuals
Sharp R-820BW
44 pages
Sharp R-820E
28 pages
Sharp R-8200E
44 pages
Sharp R-82STM
68 pages
Sharp R-822STWE
266 pages
Sharp R-861
306 pages
Sharp r-877h
94 pages
Sharp R-898M
69 pages
Sharp R-830B
40 pages
Sharp R-880F
48 pages
Sharp R-898CS
38 pages
Sharp R-843IN
312 pages
To Next PageTo Next PageTo Previous PageTo Previous Page
Loading...
Need help?
General
