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R-209KK
Sharp R-209KK User Manual
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R209KK
12 – 1
R209KK
ServiceManual
CHAPTER 12.
CIRCUIT DIAGRAMS
[1] Pictorial Diagram (Figure S-1)
Figure S-
1. Pictor
ial Diagram
BLU
MO
N
I
T
O
R
SW
I
T
C
H
SECO
N
D
A
RY
I
N
TER
LO
CK
SWI
TCH
CO
M
CO
M
RED
N.C
.
N.O.
N.
O
.
CO
M
GR
Y
GR
N
GR
N
GR
Y
TE
M
PE
R
A
TUR
E
FU
S
E
(
O
VEN)
DOOR
SEN
SI
N
G
SW
I
T
C
H
BLK
OR
G
GR
N
CO
N
TR
O
L
PA
N
E
L
WHT
RY
1
PR
I
M
A
R
Y
INT
E
R
L
O
C
K
REL
A
Y
CN
-
B
2
1
CN
-
A
N.O.
CO
M
.
T1
3
1
RY
2
OR
G
RED
BLK
RED
CN
-
A
2
GR
Y
1
3
CN
-
B
2
1
GR
N
GR
Y
CO
M
N.O.
GR
Y
GR
Y
HIGH
VOLTAGE
CAPACITOR
H.V.
RECTIFIER
(RED)
(WHT)
(RED)
HIGH
VOLTAGE
COMPONENTS
MAGNETRON
TURNTABLE
MOTOR
POWER
TRANSFORMER
RED
RED
GRY
GRY
RED
WHT
WHT
ORG
FUSE
FAN
MOTOR
BLU
GRY
RED
OVEN
LAMP
RED
GRY
GRY
L
N
WHT
RED
Power
Supply
Cord
Oven
Cavity
Back
Plate
Screw
Noise
Filter
G
R
N
GRY
WHT
ORG
Connect
the
wire
lead
which
has
the
black
case
to
the
terminal
"L"
of
the
noise
filter.
31
33
Table of Contents
Default Chapter
2
Table of Contents
2
Precautions to be Observed before and During Servicing to Avoid Possible Expo
3
After Repairing
4
When the Testing Is Completed
4
Before Servicing
3
CHAPTER 2. MICROWAVE MEASUREMENT PRO- CEDURE Requirements
5
Preparation for Testing
5
Leakage Test
5
Chapter 1 Warning
6
Danger
6
Chapter 3. Foreword and Warning Foreword
6
Chapter 4. Product Description
7
Specifications
7
Chapter 5. General Information Grounding Instructions
8
Oven Diagram
8
Chapter 6. Operation Description of Operating Se- Quence
10
Oven Schenatic
11
Description and Function of Components
12
Chapter 7. Troubleshooting Guide
13
Troubleshooting Chart
13
CHAPTER 8. TEST PROCEDURES Procedure a : MAGNETRON ASSEMBLY TEST
14
Procedure B : POWER TRANSFORMER TEST
14
Procedure C : HIGH VOLTAGE RECTIFIER TEST
14
Procedure D : HIGH VOLTAGE CAPACITOR TEST
15
Procedure E : THERMAL CUT-OUT (OVEN) TEST
15
Procedure E : TEMPERATURE FUSE (OVEN) TEST
15
Procedure F : SECONDARY INTERLOCK SWITCH TEST
15
Procedure F : PRIMARY INTERLOCK SYSTEM TEST
16
Procedure G : MONITOR SWITCH TEST
16
Procedure H : BLOWN MINITOR FUSE TEST
16
Procedure I : NOISE FILTER TEST
17
Procedure J : TOUCH CONTROL PANEL ASSEMBLY TEST
17
Procedure K : KEY UNIT TEST
18
Procedure L : RELAY TEST
19
Procedure M : DEFROST TEST
19
Procedure N : FOIL PATTERN on the PRINTED WIRING BOARD TEST
19
Chapter 9. Touch Control Panel Assem
21
Outline of Touch Control Panel
21
Description of Lsi
21
Servicing for Touch Control Panel
23
Chapter 10. Precautions for Using Lead- Free Solder
24
Employing Lead-Free Solder
24
Using Lead-Free Wire Solder
24
Soldering
24
Chapter 11. Component Replacement and
25
Warnings
25
Outer Case Removal
26
Magnetron Removal
26
High Voltage Components Removal (High Voltage Capacitor and High Voltage Rectifier Assembly)
26
Power Transformer Removal
26
Positive Lock Connector (No-Case Type) Removal
27
Control Panel Assembly Removal
27
Graphic Sheet and Membrane Switch Replacement
27
Power Supply Cord Replacement
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
32
Pictorial Diagram (Figure S-1)
32
Control Panel Circuit (Figure S-2)
33
Printed Wiring Board (Figure S-3)
34
4
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Sharp R-209KK Specifications
General
Brand
Sharp
Model
R-209KK
Category
Microwave Oven
Language
English
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