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R-530EK-T
Sharp R-530EK-T User Manual
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R530EWT
12 – 2
[2] Power Unit Circuit
Figure
S-2. Pow
er Unit
Circuit
+
Ð
+
Ð
+
Ð
A1
CN-A
R4
27
D5
T1
1
3
4
D1
D3
D2
D4
6
ab
c
d
VRS1
(J1)
D7
D8
1SS270A
1SS270A
10G471K
C1
0.1μ/50v
C3
0.1μ/50v
ZD1
HZ16-1
C5
10μ/35v
C2
1000μ/35v
C4
10μ/35v
R1
2.4k
1SS270A
1SS270A
D1-D4
1N4002L
D6
R5
4.7k
R2
680
1/2w
R3
510
1/2w
R6
3.3k
Q2
2SB1238
SP1
PKM22EPT
Q1
2SB1238
RY1
RY2
Q3
KRC243M
CN-C
12PIN
LEAD
WIRE
HARNESS
LED
GND
VC
VA
INT
VR
BUZZER
MICRO
NC
NC
DOOR
SENSING
SWITCH
OVEN
LAMP
TURNTABLE
MOTOR
FAN
MOTOR
AC
AC
MICRO
DOOR
SENSING
SWITCH
OVEN
LAMP
TURNTABLE
MOTOR
FAN
MOTOR
C10
C2
C3
C1
C4
C9
C5
C6
C7
C8
C11
C12
A2
B2
B1
32
34
Table of Contents
Default Chapter
2
Table of Contents
2
Before Servicing
3
Precautions to be Observed before
3
After Repairing
4
Before Servicing
4
When the Testing Is Completed
4
Exposure to Excessive Microwave Ener
3
Chapter 2. Microwave Measurement
5
Requirements
5
Preparation for Testing
5
Leakage Test
5
PROCEDURE 1] Requirements:
5
Chapter 1 Warning
6
Danger
6
Chapter 3. Foreword and Warning
6
Foreword
6
Chapter 4. Product Description
7
Specifications
7
Chapter 5. General Information
8
Grounding Instructions
8
Oven Diagram
8
Chapter 6. Operation Description of Operating Se- Quence
9
Operation
9
Oven Schematic
10
Description and Function of Components
11
Test Procedures
11
Troubleshooting Guide
13
Chapter 7 . Troubleshooting Guide
14
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 and Primary Interlock System Test
15
G: Monitor Switch Test
16
H: Blown Monitor Fuse Test
16
I: Noise Filter Test
17
J: Touch Control Panel Assembly Test
17
K: Key Unit Test
18
L: Relay Test
18
M: Defrost Center Test
19
N: Foil Pattern on the Printed Wiring Board Test
19
O: Ah Sensor Test
20
Chapter 9. Touch Control Panel Assembly
22
Outline of Touch Control Panel
22
Absolute Humidity Sensor Circuit
23
Servicing for Touch Control Panel
24
Chapter 10. Precautions for Using Lead
25
Chapter 11. Component Replacement
26
Warnings
26
Outer Case Removal
26
And Adjustment Procedure 1] Warnings
26
Power Transformer Removal
27
High Voltage Rectifier and High Voltage Capacitor Removal
27
Magnetron Removal
27
Oven Lamp Removal
28
Positive Lock Connector (No-Case Type) Removal
28
Control Panel Assembly Removal
28
Turntable Motor Removal
28
Cooling Fan Motor Removal
28
Door Sensing Switch/Secondary Interlock Switch and Monitor Switch Removal
29
Door Sensing Switch/Secondary Interlock Switch and Monitor Switch Adjustment
29
Door Replacement
30
CHAPTER 12. CIRCUIT DIAGRAMS Pictorial Diagram
32
Power Unit Circuit
33
LSI Unit Circuit
34
Printed Wiring Board of Power Unit
35
Parts List
37
4
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Sharp R-530EK-T Specifications
General
Brand
Sharp
Model
R-530EK-T
Category
Microwave Oven
Language
English
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