Sharp R-530EK-T User manual

PRECAUTIONS TO BE OBSERVED BEFORE AND
DURING SERVICING TO AVOID POSSIBLE EXPO-
SURE TO EXCESSIVE MICROWAVE ENERGY
CHAPTER 1. WARNING TO SERVICE PERSONNEL
CHAPTER 2. MICROWAVE MEASUREMENT PRO-
CEDURE
CHAPTER 3. FOREWORD AND WARNING
CHAPTER 4. PRODUCT DESCRIPTION
CHAPTER 5. GENERAL INFORMATION
CHAPTER 6. OPERATION
CHAPTER 7. TROUBLESHOOTING GUIDE
CHAPTER 8. TEST PROCEDURES
CHAPTER 9. TOUCH CONTROL PANEL ASSEMBLY
CHAPTER 10. PRECAUTIONS FOR USING LEAD-
FREE SOLDER
CHAPTER 11. COMPONENT REPLACEMENT AND
ADJUSTMENT PROCEDURE
CHAPTER 12. CIRCUIT DIAGRAMS
Parts List
SX705R530EPW/
MICROWAVE OVEN
R-530EK-T
R-530EW-T
R-530ES-T
SERVICE MANUAL
R530EW
MODELS
CONTENTS
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
TopPage
In the interest of user-safety the oven should be restored to its original condition and only parts identical to those
specified should be used.
WARNING TO SERVICE PERSONNEL: Microwave ovens contain circuitry capable of producing very high
voltage and current, contact with following parts may result in a severe, possibly fatal, electrical shock.
(High Voltage Capacitor, High Voltage Power Transformer, Magnetron, High Voltage Rectifier Assembly,
High Voltage Harness etc..)
R-530EW-T
R-530ES-T

R530EWT
12 – 1
R530EWT Service Manual
CHAPTER 12. CIRCUIT DIAGRAMS
[1] Pictorial Diagram
Figure S-1. Pictorial Diagram
HIGH VOLTAGE CAPACITOR
H.V. RECTIFIER
HIGH VOLTAGE COMPONENTS
OVEN LAMP
MAGNETRON
COM.
MONITOR
SWITCH
N.C.
SECONDARY INTERLOCK SWITCH
TURNTABLE MOTOR
POWER TRANSFORMER
COM.
NO
BLU
RED
GRY GRY
ORG
WHT
ORG
WHT
BRN
BLU
RED
BLU
BLK
MAGNETRON TEMP FUSE
CAVITY TEMP FUSE
FAN MOTOR
RED
BLK
GRY
ORG
ORG
BLU
WHT
WHT
WHT POWER SUPPLY
CORD 120V 60Hz
NOTE:
The neutral (WHT) wire must be connected to the
terminal with "N" mark on the power supply cord.
BLK
WHT
GRY
HNNOTE:
The grounding conductor of the power supply cord has been grounded by power
supply cord fixing screw.
The screw must always be kept tight.
COM.
N.O.
DOOR SENSING SWITCH PNK
GRN
GRN
to Oven cavity
GRN
PNK
GRN
2 1
CN-B
WHT
1
CN-A
BRN
GRY
RED
WHT
BLK
GRY
WHT
WHT
WHT
SOURCE
LOAD
LOAD
SOURCE
WHT
BLK AH SENSOR RED
WHT
1 2 3
CN-F
NOTE: Connect the GRY wire leads to the
cabinet side terminal of the power transformer to avoid an operation
error of AH sensor.
CN-B
RY2
RY1
PRIMARY INTERLOCK RELAY
CN-A
T1
1
1
2
2
CONTROL PANEL
(LSI UNIT)
(POWER UNIT)
CN-F
CN-C
CN-G

R530EWT
12 – 2
[2] Power Unit Circuit
Figure S-2. Power Unit Circuit
+
Ð
+
Ð
+
Ð
A1
CN-A
R4 27
D5
T1
1
3
4D1
D3
D2
D4
6
ab
c
d
VRS1
(J1)
D7D8
1SS270A1SS270A
10G471K
C1 0.1μ/50v C3 0.1μ/50v
ZD1 HZ16-1
C5 10μ/35v
C2 1000μ/35v
C4 10μ/35v
R1 2.4k
1SS270A1SS270A
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

R530EWT
12 – 3
[3] LSI Unit Circuit
Figure S-3. LSI Unit Circuit
C-10
C-9 C-1 C-8
C-12
F-1 F-2 F-3
G1 G2 G3 G4 G5 G6 G7 G8
G9
G10 G11 G12 G13 G14
C-11
C-3 C-4 C-2
CN-C
GND INT VC LED VR VA OVEN LAMP TURNTABLE MOTOR FAN MOTOR BUZZERR MICRO NC DOOR SENSING SWITCH NC AH SENSOR
NOTE : IF NOT SPECIFIED 1/10W ±5%
CN-F
D20
CN-G
Q20 DTA143EAK
Q30 DTA143EAK
R90 330 1w
IC-2 BA4558
CF1 CST4.00MGW
IC-1
7237
36 1
144 109
108
73
R94 4.7k
R69 15k
R97 15k
R41 15k
R92 1.8kF R93 360kF
R91 3.32kD
R96
3.57kD
R40
4.7k
R74 270k
8
7
6
5
1
2
3
4
R95
15k
Q21 DTA123JKA
D90
Q11 DTA143EAK
LD10LD11LD12LD13
LD15LD14
C10 47 μ/16v
C11 0.1 μ/50v
C90 0.1 μ/50v
C91 0.1 μ/50v
C40 0.01 μ/25v
C60 330p/50v
C20 0.1 μ/50v
C13 0.01μ/25v
AIN0
AIN1
AIN2
AIN3
C14 0.01μ/25v
C15 0.1μ/50v
VL4 VL3 VL2
P44 P45
P20
P07 P06 P05 P04 P03 P02 P01 P00
P17 P16 P15 P14
AIN7 AIN6
AIN5AIN4
P21 P22 P23 P24
CNTRO
VL1
C16 0.1μ/50v C17 0.1μ/50v C18 0.1μ/50v
R12 15k
(J11) 4.7k (J10)
(J12)
(J14)
(J16)
(J13) 4.7k
(J15) 4.7k
(J17) 4.7k
R11 15k
R10 1k
R15
4.7k
R16
4.7k
R17
0
R18
4.7k
R98
620k
R99
300k
R100
150kF
R101
75kF
R102
37.4kF
R19
4.7k
C12
0.1 μ/50v
C92
0.01μ/25v
C93 0.01μ/25v
ZD10
UDZ4.3B
Q10
2SA1037AK
Fresh
vegetables
Beverage
Center
Breakfast Lunch
Popcorn
Snacks
From the
Pantry
Start
Touch On
Fish
Seafood
Power
Level
Keep
Warm
Plus
15
Minute
Recipes
Defrost
Center
Custom
Help
Baked
potatoes
Sensor
reheat
Minute
Plus
Vegetables
Rice
1 6
2 7
3 8
4 9
5 0
Poultry
Ground
meat
Entrees
Timer
Clock
Stop
Clear
C61 330p/50v
C62 330p/50v
C63 330p/50v
C64 330p/50v
C65 330p/50v
+
Ð
R75 270k
R60 15k
R61 15k
R62 15k
R63 15k
R64 15k
R65 15k
R66 15k
R67 15k
R76 270k
R77 270k
R78 270k
R79 270k
R70 15k R71 15k R72 15k R73 15k R68 15k
C-6 C-5 C-7
COM14 COM15
COM5
COM6
COM16
COM15
COM14
COM13
COM12
COM11
COM10
COM9
SEG40
SEG39
SEG38
SEG37
SEG36
SEG35
SEG34
SEG33
SEG32
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
COM0
COM5
COM15
COM8
SEG34
SEG39
P05
P04
P03
P02
P01
P00
P17
P16
P15
P14
AIN7
AIN6
AIN5
AIN4
RESET
NC
XCOUT
XCIN
NC
VCC
OSCSEL
XOUT
VSS
NC
XIN
NC
AIN3
AIN2
AIN1
AIN0
COM8
COM9
COM10
COM11
COM12
COM13
COM7
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
SEG32
SEG33
COM4 COM3 COM2 COM1 COM0
VL1 VL2 VL3 VL4 VL5
C3 C2 C1
VLIN
VREG
NC
VSS
P27 P26 P25 P24 P23 P22 P21 P20 P47 P46 P45 P44 P43
CNTR0
P41
INT0
P07 P06
SEG67 SEG66 SEG65 SEG64 SEG63 SEG62 SEG61 SEG60 SEG59 SEG58 SEG57 SEG56 SEG55 SEG54 SEG53 SEG52 SEG51 SEG50 SEG49 SEG48 SEG47 SEG46 SEG45 SEG44 SEG43 SEG42 SEG41 SEG40 SEG39 SEG38 SEG37 SEG36 SEG35 SEG34
SENSORDEFROSTTURNTABLEOFFCOOK
HELP

R530EWT
12 – 4
[4] Printed Wiring Board of Power Unit
Figure S-4. Printed Wiring Board of Power Unit
WH-1
SH-B
SH-A
1
C3
C4
C5
R3
C2
F
C1
10
D4
D2
D1
D3
(J1)
D9
(D10)
RY3
(CN-D)
D8
ZD1
VRB
DU
R2
R1
R6
R5
SP1
3
EB
D6
D5
Q2
R4
2
6
11
P
S
RY2
T1
AC
VRS1
5
D7
OMIF DU
9 8 7
EQ1 B
4
E
RY1
AC
OL
TTM
FM
B
Q3
(CN-C)
CN-C
CN - B
CN - A
1
1
9
12
1
1
12
XA
VH
2
2