Sharp SJ-A20S-SL, SJ-B21S-SL, SJ-A24S-SL, SJ-B25S-SL, SJ-A28S-SL Service Manual

SERVICE MANUAL

SJ-A20S/B21S/A24S/B25S/A28A/B27S/A31S/A34S-SL

No.S9902SJ22FTVTT

This document has been published to be used for after sales service only. The contents are subject to change without notice.

CONTENTS

Refrigerator-freezer

MODELS

SJ-A20S-SL SJ-B21S-SL SJ-A24S-SL SJ-B25S-SL SJ-A28S-SL SJ-B27S-SL SJ-A31S-SL SJ-A34S-SL

DESTINATION T

Refer to "HFC-134a COOLING UNIT" Service Manual for handling this refrigerant.

R

efrigerant; HFC-134a

SJ-A28S-SL SJ-B27S-SL

CHAPTER 1. SPECIFICATION

CHAPTER 2. DESIGNATION OF VARIOUS PARTS

[1] EXTERNAL DESCRIPTION........................... 2-1

[2] CONSTRUCTIONS........................................ 2-2

CHAPTER 3. DIMENTIONS [1] OUTER DIMENTIONS AND

CLEARANCE ................................................. 3-1

[2] INNER DIMENTIONS .................................... 3-4

CHAPTER 4. LIST OF ELECTRICAL PARTS

CHAPTER 5. WIRING DIAGRAM

[1] WIRING DIAGRAM ........................................ 5-1

[2] ELECTRIC ACCESSORIES LAYOUT ........... 5-2

CHAPTER 6. FAILURE DIAGNOSIS

[1] OUTLINE OF CONTROL ............................... 6-1

[3] RE-SETTING OF MICROCOMPUTER AT

POWER FAILUR

E.......................................... 6-2

[4] D

IAGNOSIS METHOD OF FAILURE ............6-2

[5] CONVERSION TABLE ..................................6-3

[6] CIRCUIT DIAGRAM OF MAIN PWB .............6-4

CHAPTER 7. FUNCTIONS [1] ADJUSTABLE TEMPERATURE

CONTROL .....................................................7-1

CHAPTER 8. ASSEMBLI NG PROCEDURES OF MAIN PARTS AND CAUTIONS [1] F-LOUVER ASS'Y (SJ-A20S/B21S/A24S/ B25S/A28S/B27S)

..........................................8-1

[3] R CONTROL COV. ASS'Y.............................8-7

[4] HOW TO REPLACE THE LAMP ...................8-9

[5] DEFROST HEATER ......................................8-10

CHAPTER 9. COOLING UNIT

[1] COOLING UNIT.............................................9-1

[2] LOCATION ............................

........................9-2

Parts Guide

[

2] F-LOUVER ASS'Y (SJ-A31S/A34S)...............8-4

[1] SJ-A20S/B21S/A24S/B25S/A28S/B27S........ 2-1

[2] SJ- A 31S/A3 4 S .......................................... 2-2

[3] PRECAUTION FOR USING LEAD-FREE

SOLDER........................................................5-3

[2] CHECK MODE OF DEFROST HEATER

(Forced Defrosting) ........................................ 6-1

SJ-F230G

Ag

1 – 1

SJD34NSLG

Service Manual

CHAPTER 1. SPECIFICATION

RATING

PLUG TYPE

Plug cord 2 pin Plug type Destination mark T

COLOR Items -SL Outside color Silver Inside color White

SJ-A20S SJ-B21S

SJ-A24S SJ-B25S

SJ-A28S SJ-B27S

Outer dimensions Height 1253mm(49.3") 1389mm(54.7") 1491mm(58.7") Width 545mm(21.5") 545mm(21.5") 545mm(21.5")

Depth 620mm(24.4") 620mm(24.4") 620mm(24.4")

184liter(6.5cu.ft) 212liter(7.5cu.ft) 227liter(8.0cu.ft)

Defrosting System

Start Finish

Freezer Compartment F-shelf

Ice cube maker Ice storage box Door pocket 2

Refrigerator Compartment Fresh case

R shelf (plastic) 1 2 R shelf ass'y (glass) - - 2 V shelf (plastic) 1 1 V shelf ass'y (glas

s) - - 1 Vegetable case Egg pocket Small pocket Door pocket B Bottle pocket Door pocket

1

Deodorizing unit

Items Type

No-frost freezer

Interior lamp

Evaporating pan

1

Rate storage volume (Rated volume)

Temperature control

Automatic (Adjustable)

Yes

1

2-Door

Heater system

Automatic

1

Twin ice cube maker

1

1 (Honeycomb type)

SJ-A20S/B21S/A24S/B25S/A28S/B27S

Stand Yes

SJ-A20S SJ-B21S

SJ-A24S SJ-B24S

SJ-A28S SJ-B27S

Rated voltage (V~) Rated frequency (Hz) Climate class Rated power input (W) Rated current (A) Current input (A) Defrosting input (A) Defrosting power (W)

HFC-134a(75 g) HFC-134a(75 g) HFC-134a(95 g)

Net Weight (kg) 39 41 45

0.85

0.58

50

T

220

Insulation blowing gas [Flammable]

Items Refrigerant (Charging quantity) [Non-flammable]

Cyclo pentane (HC)

128

0.58

100

!"#$% &'$( &#$) &'$* &#$+ &'$, &#-( &#-)

1 – 2

SJD34NSLG

Service Manual

RATING

PLUG TYPE

Plug cord 2 pin Plug type Destination mark T

COLOR Items -SL Outside color Silver Inside color White

SJ-A31S SJ-A34S

Outer dimensions Height 1580mm(62.2") 1700mm(66.9") Width 600mm(23.6") 600mm(23.6")

Depth 631mm(24.8") 631mm(24.8")

292liter(10.3cu.ft) 313liter(11.1cu.ft)

Defrosting System

Start Finish

Freezer Compartment F-shelf

Ice cube maker Ice storage box Door pocket

Refrigerator Compartment Fresh case

R shelf ass'y (glass) 2 3 V shelf ass'y (glass) Vegetable case Egg pocket Egg tray Small pocket 1 2 Door pocket B Bottle pocket D

oor pocket

1 (Ho

neycomb type)

1

2-Door

Automatic

2

Temperature control

Automatic

1

Twin ice cube maker

1

Deodorizing unit

Items

Type

No-frost freezer

Interior lamp

Evaporating pan

Rated storage volume (Rated volume)

1

Heater system

1

Automatic (Adjustable)

Yes

1

SJ-A31S/A34S

SJ-A31S SJ-A34S

Rated voltage (V~) Rated frequency (Hz) Climate class Rated power input (W) Rated current (A) Current input (A) Defrosting current (A) Defrosting power (W)

Cyclo pentane (HC)

Net Weight (kg) 52 54

0.95

0.58

Insulation blowing gas [Flammable]

Items

Refrigerant (Charging quantity) [Non-flammable]

HFC-134a(100 g)

220

50

T

109

0.58

128

!"#$% &'$( &#$) &'$* &#$+ &'$, &#-( &#-)

2 – 1

SJ26NSL

Service Manual

CHAPTER 2. DESIGNATION OFVARIOUS PARTS

[1] EXTERNAL DESCRIPTION

The names in parenthesis "[ ]" are the denominations used in the REPLACEMENT PARTS LIST.

1. Freezer shelf

[F-shelf]

2. Freezer temp.control knob

3. Ice cube maker

4. Ice cube box

[Ice storage box]

5. Fresh room

6. Refrigerator temp.control knob

7. Light

[Lamp]

8. Refrigerator shelf

[ R-shelf (plastic) : SJ-A20S/B21S; 1 pc. SJ-A24S/B25S; 2 pcs. R-shelf ass’y (glass) :SJ-A28S/B27S/A31S; 2 pcs, SJ-A34S; 3 pcs.]

9. Vegetable shelf

10. Vegetable crisper

[Vegetable case]

11. Adjustable foot

[Adjustable leg]

12. Magnetic door seal

[Door packing]

13. Door pocket

16. Light switch

15. Egg pocket

(SJ-A20S/B21S/A24S/B25S; 2 pockets,

SJ-A28S/B27S/A31S/A34S; 3 pockets)

17. Small pocket (right)

[Small pocket]

18. Small pocket (left) [Door pocket B]

19. Bottle pocket

(SJ-A24S/B25S/A28S/B27S/A31S; 1 pocket, SJ-A34S; 2 pockets)

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

13

12

14. Egg holder [Egg tray]

(SJ-A24S/B25S/A28S/B27S/A31S/A34S)

(Only SJ-A31S/A34S)

[ R-shelf (plastic) : SJ-A20S/B21S/A24S/B25S, R-shelf (glass) : SJ-A28S/B27S/A31S/A34S ]

!"#$% &'$( &#$) &'$* &#$+ &'$, &#-( &#-)

2 – 2

[2] CONSTRUCTIONS

Fan motor

Def-thermistor

F-temp. control knob

R-temp. control knob

Evaporator

Defrost heater

Deodorizing unit

R-thermistor

PWB L ass'y

Running capacitor

Lamp

Compressor Starting relay Protector

Evaporating pan

Mark: Cold air flow

Fuse ass'y

!"#$% &'$( &#$) &'$* &#$+ &'$, &#-( &#-)

3 – 1

SJD26LVSL

CHAPTER 3. DIMENTIONS

[1] OUTER DIMENTIONS AND CLEARANCE

1. SJ-A20S/B21S

2. SJ-A24S/B25S

(Unit:mm)

9

34

4

610

628.5

1085

545

1145

365

970

545

443.5

757.5

1253

(Unit:mm)

9

34

4

610

628.5

1085

545

1145

365

970

545

443.5

893.5

1389

6060

60

!"#$% &'$( &#$) &'$* &#$+ &'$, &#-( &#-)

3 – 2

3. SJ-A28S/B27S

(Unit:mm)

9

34

4

610

628.5

1085

545

1145

365

970

545

515.5

923.5

1491

60

60 60

4. SJ-A31S

600

541.5

986.5

34

4

1065

1161

1221

405

631

1580

9

649.5

!"#$% &'$( &#$) &'$* &#$+ &'$, &#-( &#-)

3 – 3

5. SJ-A34S

600

541.51106.5

34

4

631

1161

600

1221

405

1065

1700

9

649.5

[2] INNER DIMENTIONS

1. SJ-A20S/B21S

380

390

253

321

45

146

149

300

67

107

67

196

55

43

391

38

33

138

417

363

208

371

366

137

208

204

154

103

250

143

107

66

120

80

211

292

340

(Unit:mm)

!"#$% &'$( &#$) &'$* &#$+ &'$, &#-( &#-)

3 – 4

2. SJ-A24S/B25S

(Unit:mm)

196

55

43

380

390

45

391

38

33

138

169

417

363

208

180

371

366

67

30

107

67

137

208

253

271

214

187

434

204

154

103

250

143

107

66

120

80

91

211

292

68

340

417

292

154

86

3. SJ-A28S/B27S

391

38

3355

43

138

390

169

417

363

208

137

208

253

271

214

45

103

250

143

107

66

202

464

144123184

196

120

80

91

180

68

30

107

67

371

366

67

366

67

366

292

211

(Unit:mm)

292

254

204

154

!"#$% &'$( &#$) &'$* &#$+ &'$, &#-( &#-)

3 – 5

4. SJ-A31S

5. SJ-A34S

430

38

3355

43

138

445

472

411

217

152

217

259

330

147

170

210

530

217

45

111

380

92

107

66

231

254

204

154

217

120

80

91

180

68

237

30

10767

430

67

416

67

416

231

312

430

38

3355

43

138

445

480

472

411

217

152

217

533282

147

170

160

650

155

45

111

380

92

107

66

231

254

204

154

217

120

80

91

180

68

237

5930

30

107

67

430

67

416

67

416

231

312

150

155

237

155

312

472

312

170

!"#$% &'$( &#$) &'$* &#$+ &'$, &#-( &#-)

Sharp SJ-A20S-SL, SJ-B21S-SL, SJ-A24S-SL, SJ-B25S-SL, SJ-A28S-SL Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual