Sharp R-318BK Service Manual Download

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R-318BK

Figure S-3. CPU Unit Circuit

C 1

C 2

C 3

C 0

S16

S15

S14

S13

S12

S11

S10

S 9

S 8

S 7

S 6

S 5

S19

S20

S21

S22

S23

S24

S25

S26

RESET

SEG10

P71

P70

XIN

XOUT

79COM0

78COM1

77COM2

76COM3

74VREF

AVSS

SEG8

SEG11
61

SEG12
60

SEG13
59

SEG14
58

SEG15
57

SEG16
56

SEG17
55

SEG18
54

SEG19
53

SEG20
52

SEG21
51

SEG22
50

SEG23
49

SEG24

SEG25

SEG26

SEG27

SEG9

INT0

72SEG0

71SEG1

70SEG2

69SEG3

68SEG4

67SEG5

66SEG6

65SEG7

VSS

P27

P26

P25

P24

P23

P22

P21

P20

P17

P16

P15

KITCHEN

TIMER

CHICKEN

PIECES

CHICKEN

BREAST

FROZEN

ROLL

FRESH

ROLL

STEAKS/

CHOPS

BAKED

POTATO

FISH/

SEAFOOD

REHEAT

POPCORN

FROZEN

ENTREES

MINUTE

PLUS

START

FRESH

VEGETABLES

GROUND MEAT

(COMPU

DEFROST)

GROUND MEAT

(INSTANT

ACTION)

POWER

LEVEL

AUTO START CLOCK

IC-1 IZA931DR

G12

432

987

P14

VL2

VL1

AN7

AN6

AN5

AN4

AN3

AN2

AN1

AN0

P57

P56

P55

P54

P53

P52

P51

P50

P47

P46

P45

P44

P43

P40

P41

VL3

VCC

G12

C 2

C 3

C 4

C 5

C 6

C 7

C 8

C 9

GND

INT

BUZZER

RY1

RY2

NOTE

: IF NOT SPECIFIED 1/10w

DOOR

SWITCH

G11

G10

G 9

G 8

G 7

G 6

G 5

G 4

G 3

G 2

G 1

: IF NOT SPECIFIED 1SS355

: IF NOT SPECIFIED 0.01

F / 25v

–

C10 47

/16v

C63 330pF/50v

C62 330pF/50v

C61 330pF/50v

C60 330pF/50v

C20

0.1

/50v

C12

0.1

/50v

C13

0.1

/50v

C11 0.1

/50v

Q10

2SA1037AK

Q11

KRA101S

Q40

KRA101S

Q20

KRA101S

Q22

DTA123JKA

D22

MA152WA

IC2

BA4558

C14

C30

R15 4.7k

R60 15k

CF1

R61 15k

R62 15k

R63 15k

R64 15k

R65 15k

R66 15k

R67 15k

R75 100k

R74 100k

R73 100k

R72 100k

R30 4.7k

R31 15k

LIQUID CRYSTAL DISPLAY

COOK

SENSOR

LBS

DEF

HELP

KEY UNIT

R80 4.7k

(J18)

(J19)

(J20)

(Q23)

R71 15k

AH SENSOR

R70 15k

R69 15k

R68 15k

R10

R11

4.7k

R12

R13

R14

10k

(J11)

(J13)

(J15)

(J17)

(J21)

(J14) 4.7k

(J16) 4.7k

(J12) 4.7k

(J10) 4.7k

ZD10

UDZ4.3B

STOP

CLEAR

0.015

/25v

C102

C103

C104

IC2

D101

R101

1.8kF

R105

3.32kD

C101

0.1

/50v

R90

330 1w

R112

3.57kD

R104 47k

R113

MA152

R103 10k

R102 360kF

R111 37.4kF

R110 75kF

R109 150kF

R108 300kF

R107 620kF

R106 47k

F 1

F 2

F 3

C 1

Summary of Contents for R-318BK

Page 1: ...rent 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 SHARP CORPORATION This document has been published to be used for after sales service only The contents are subject to change without notice SUPPLEMENTAL SERVICE MANUAL This is a supplementa...

Page 2: ...nd transmission systems shall be repaired replaced or adjusted by procedures described in this manual before the oven is released to the owner e A microwave leakage check to verify compliance with the Federal Performance Standard should be performed on each oven prior to release to the owner BEFORE SERVICING Before servicing an operative unit perform a microwave emission check as per the Microwave...

Page 3: ...pacitor 4 Disconnect the leads to the primary of the power transformer 5 Ensure that the leads remain isolated from other components and oven chassis by using insulation tape 6 After that procedure reconnect the power supply cord When the testing is completed 1 Disconnect the power supply cord and then remove outer case 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Reconne...

Page 4: ...e oven cavity The water container shall be a low form of 600 ml 20 oz beaker with an inside diameter of approx 8 5 cm 3 1 2 in and made of an electrically nonconductive material such as glass or plastic The placing of this standard load in the oven is important not only to protect the oven but also to insure that any leakage is measured accurately 4 Set the cooking control on Full Power Cooking Mo...

Page 5: ...oven until the following points are ensured A The door is tightly closed B The door brackets and hinges are not defective C The door packing is not damaged D The door is not deformed or warped E There is no other visible damage with the oven Servicing and repair work must be carried out only by trained service personnel DANGER Certaininitialpartsareintentionallynotgroundedandpresentariskofelectric...

Page 6: ...n Rate P HI Full power throughout the cooking time P 90 approx 90 of Full Power P 80 approx 80 of Full Power P 70 approx 70 of Full Power P 60 approx 60 of Full Power P 50 approx 50 of Full Power P 40 approx 40 of Full Power P 30 approx 30 of Full Power P 20 approx 20 of Full Power P 10 approx 10 of Full Power P 0 No power throughout the cooking time SENSOR COOK pads INSTANT ACTION pads COMPU DEFR...

Page 7: ... TOUCH PAD AGAIN POWER LEVEL START STOP CLEAR Figure O 1 Oven Schematic Off Condition SCHEMATIC NOTE CONDITION OF OVEN 1 DOOR CLOSED 2 CLOCK APPEARS ON DISPLAY 120V AC 60 Hz OVEN LAMP TURN TABLE MOTOR FAN MOTOR POWER TRANSFORMER CAPACITOR 1 0µF AC 2300V MONITOR SWITCH RECTIFIER MAGNETRON SECONDARY INTERLOCK SWITCH TTM OL FM MONITOR FUSE 20A A1 A2 COM COM N O N O DOOR SENSING SWITCH RY 1 RY 2 CONTR...

Page 8: ...supply cord When the testing is completed 1 Disconnect the power supply cord and then remove outer case 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Reconnect the leads to the primary of the power transformer 5 Reinstall the outer case cabinet 6 Reconnect the power supply cord after the outer case is installed 7 Run the oven and check all functions H BLOWN MONITOR FUSE TE...

Page 9: ... unit or key pad is at fault 5 Reconnect all leads removed from components during testing 6 Re install the outer case cabinet 7 Reconnect the power supply cord after the outer case is installed 8 Run the oven and check all functions 5 4 3 2 1 0 9 8 7 6 STOP CLEAR AUTO START CLOCK Chicken breast KITCHEN TIMER Fresh Vegetables Fish seafood Ground meat Ground meat COMPU DEFROST Chicken pieces Popcorn...

Page 10: ...4 45 46 47 1 VL2 2 VL1 3 AN7 4 AN6 5 AN5 6 AN4 7 AN3 8 AN2 9 AN1 10 AN0 11 P57 12 P56 13 P55 14 P54 15 P53 16 P52 17 P51 18 P50 19 P47 20 P46 21 P45 22 P44 23 P43 24 26 P40 25 P41 VL3 VCC G12 C 2 C 3 C 4 C 5 C 6 C 7 C 8 C 9 VA GND VC INT BUZZER RY1 RY2 NOTE IF NOT SPECIFIED 1 10w 5 DOOR SWITCH G11 G10 G 9 G 8 G 7 G 6 G 5 G 4 G 3 G 2 G 1 IF NOT SPECIFIED 1SS355 IF NOT SPECIFIED 0 01µF 25v C10 47µ 1...

Page 11: ... Power Unit WH 1 WH 1 SH B SH A LD1 DIP LD2 1 C3 C4 C5 R3 C2 F C1 10 D4 D2 D1 D3 D9 D10 RY3 CN D D8 ZD1 VRB D U R2 R1 R6 R5 SP1 3 E B D6 D5 Q2 R4 2 6 11 P S RY2 T1 AC VRS1 QKITPB026MRE0 5 D7 OMIF D U 9 8 7 E Q1 B 4 E RY1 AC OL TTM FM B Q3 CN C CN C CN B CN A LD3 LD4 LD5 1 1 1 9 12 2 1 1 1 2 XA VH 2 2 ...

Page 12: ...pin connector CN A 1 AC 3 1B QCNCMA422DRE0 9 pin connector CN C 1 AF 3 1C FW VZA196DRE0 2P wire harness WH 1 1 AD 3 1D FW VZA195DRE0 Switch harness A SH A 1 AD 3 1E FW VZA197DRE0 Switch harness B SH B 1 AD 3 1F LHLD A171WRF0 LED holder 1 AE C1 RC KZA087DRE0 Capacitor 0 1 uF 50V 1 AA C2 VCEAB31VW108M Capacitor 1000 uF 35V 1 AF C3 RC KZA087DRE0 Capacitor 0 1 uF 50V 1 AA C4 5 VCEAB31VW106M Capacitor ...

Page 13: ...20 PCUSUA192WRP0 Cushion 1 AD 4 21 PCUSUA329WRP0 Cushion 1 AC 4 22 PGIDHA058WRP0 MG air guide 1 AE 4 23 PCUSUA126WRE0 Cushion 1 AC DOOR PARTS 5 1 FDORFA318WRT0 Door panel 1 BE 5 2 PSHEPA382WRE0 Sealer film 1 AH 5 3 GWAKPA547WRR0 Door frame 1 AZ 5 4 HPNL A684WRR0 Door screen 1 AT 5 5 LSTPPA139WRF0 Latch head 1 AF 5 6 MSPRTA187WRE0 Latch spring 1 AC 5 7 PCUSUA504WRP0 Cushion 5 AB 5 8 XCPSD40P08000 S...

Page 14: ... 1 4 1 7 2 4 16 7 6 7 3 6 2 4 23 7 3 7 6 1 1 1 1 1 2 4 8 1 7 4 4 7 5 7 5 4 3 7 5 6 1 7 1 1 9 4 6 1 8 6 6 1 4 4 7 6 7 7 5 1 5 4 12 4 14 1 12 7 1 4 2 4 15 1 14 4 13 1 5 2 3 4 5 1 3 7 1 1 6 7 1 7 6 7 6 7 6 7 6 7 6 2 5 2 4 7 6 7 6 2 4 7 6 2 2 4 11 4 9 4 22 7 3 1 13 7 4 7 2 4 10 6 9 1 11 1 10 4 19 4 20 4 21 4 17 1 15 7 2 ...

Page 15: ...F G H A B C D E F G H CONTROL PANEL PARTS DOOR PARTS MISCELLANEOUS Actual wire harness may be different from illustration 6 4 6 3 CAPACITOR 6 5 3 2 3 4 3 3 3 3 3 3 5 3 5 3 5 3 1F 3 1 3 3 1 3 3 2 5 2 5 8 5 1 5 3 5 6 5 4 5 9 5 5 4 18 5 7 5 7 5 7 5 7 ...

Page 16: ...g or otherwise without prior written per mission of the publisher 6 4 5 1 2 3 6 4 5 1 2 3 A B C D E F G H A B C D E F G H PACKING AND ACCESSORIES DOOR PROTECTION SHEET SPADPA204WRE0 TOP PAD ASSEMBLY FPADBA341WRK0 PLASTIC BAG SSAKHA034WRE0 Not replaceable items PACKING CASE SPAKCD175WRE0 BOTTOM PAD ASSEMBLY FPADBA342WRK0 6 2 TURNTABLE TRAY 6 8 INSTRUCTION BOOK PRINTING MATTER 6 1 TURNTABLE SUPPORT ...

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Sharp R-318BK, Service Manual

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