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R-395N
Sharp R-395N User Manual
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R395N(S)
13 – 3
[3] Control Unit Ci
rcuit (Figure S-2)
Figure S-2. Control Unit Circuit
ZD10
UDZ4.3B
C12
0.1uF/
25V
R10
2SA1037AK
Q11
DT
A143
EKA
R12
15K
1K
Q20
DT
A14
3EKA
C20
0.1uF
25V
R41
15K
R40
4.7K
DOOR
-5V
INT
BZ
COM
M
C40
GND
R6
3.3K
0.01uF
25V
BL
<
POWER
UNIT
>
Q30
DT
A143
EKA
NL
Q10
R11
15K
NOTE
SEG3
SEG5
SEG4
SEG6
SEG7
SEG8
SEG9
SEG10
SEG1
1
SEG12
SEG13
SEG14
COM3
COM2
COM1
LCD
<
LSI
UNIT
>
G12
<
KEY
UNIT
>
:IF
NOT
SPECIFIED
1/10W
5%
R74
R75
C11
R76
R77
0.1uF
/
25V
1K
R1
10
4.7K
R17
CF1
4MHz
G1
1
G10
G9
65
49
P54
AN5
AN4
P60
P53
AV
S
S
SEG21
IC-1
P46
P47
VREF
P55
P56
P57
AN2
P41
P40
OSCSEL
RESET
P62
P61
VSS
AN3
XIN
XOUT
VCC
VCC
18
1
17
32
50
P51
INT0
VL2
VL3
COM0
COM1
COM2
COM3
P30
P31
P32
P33
P34
P35
T2OUT
VL1
33
P37
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG1
1
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
P52
270K
270K
270K
270K
C14
0.01uF
25V
C13
0.01uF
/
25V
SEG15
SEG16
:IF
NOT
SPECIFIED
1SS133
or
1SS270A
G2
G3
G4
G5
G6
G7
G8
R67
R66
R65
R64
R63
R62
R61
R60
15K
x8
R70
R71
R69
R68
15K
x4
COM0
SEG2
SEG1
SEG0
G1
(Q21)
1/4W
R100
1M
CN-G
(
)
:
NOT
INSER
T
P
ARTS.
(G13)
26
28
Table of Contents
Default Chapter
1
Microwave Oven
1
Table of Contents
2
Chapter 1. Before Servicing
3
Tion
3
Caution Microwave Radiation
3
Warning
3
Chapter 2. Warning to Service Person- Bly
4
Chapter 3. Product Specifications
5
Chapter 4. Appearance View Oven
6
Touch Control Panel
6
Chapter 5. Operation Sequence 1] off Condition
7
Chapter 5. Operation Sequence off Condition
7
Microwave Cooking Condition
7
Power Output Reduction
7
Chapter 6. Function of Important Com
8
Door Open Mechanism
8
1St. Latch Switch and 2Nd. In- Terlock Relay Control Switch
8
Monitor Switch
8
Fuse F10A
8
High Voltage Fuse
8
Oven Temperature Fuse
8
Turntable Motor
8
Fan Motor
8
Noise Filter
8
Chapter 7. Troubleshooting Guide Foreword
9
Chart
9
Chapter 8. Test Procedures
10
A: Magnetron (Mg) Test
10
Chapter 8. Test Procedures 1] A: Magnetron (Mg) Test
10
B: Power Transformer Test
11
C: High Voltage Rectifier Test
11
D: High Voltage Capacitor Test
11
E: Switch Test
12
F: Temperature Fuse Test
12
G: Motor Winding Test
12
H: Fuse F10A
12
I: Noise Filter Test
13
J: High Voltage Fuse Test
13
K: Touch Control Panel Assembly Test
13
L: Key Unit (Membrane Switch) Test
14
M: Relay Test
14
N: Procedures to be Taken When the Foil Pattern on the Printed Wiring Board (Pwb) Is Open
14
Chapter 9. Touch Control Panel Assem
15
Outline of Touch Control Pan
15
Servicing for Touch Control Panel
15
Chapter 10. Precautions for Using Lead-Free Solder
17
And Adjustment Procedure 1] before Operating
18
Chapter 11. Component Replacement and Adjustment Procedure before Operating
18
Outer Case Removal
18
Power Transformer Removal
19
High Voltage Rectifier Assembly, High Voltage Fuse and High Voltage Capacitor Removal
19
Magnetron Removal
19
Positive Lock Connector (No-Case Type) Removal
19
Control Panel Assembly Removal
20
Graphic Sheet and Membrane Switch Replacement
20
Turntable Motor Removal
20
Cooling Fan Motor Removal
20
Power Supply Cord Replacement
21
1St. Latch Switch, 2Nd. Interlock Relay Control Switch and Monitor Switch Removal
21
1St. Latch Switch, 2Nd. Interlock Relay Control Switch and Monitor Switch Adjustment
22
Door Replacement
22
Microwave Measurement
22
Chapter 12. Microwave Measurement
24
Chapter 13. Circuit Diagrams
25
Oven Schematic
25
Pictorial Diagram (Figure S-1)
26
Control Unit Circuit (Figure S-2)
27
Printed Wiring Board (Figure S-3)
28
4
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Sharp R-395N Specifications
General
Brand
Sharp
Model
R-395N
Category
Microwave Oven
Language
English
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