Sharp SJ-C20 SL Series User manual

SERVICE MANUAL
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
CHAPTER 1. SPECIFICATION
CHAPTER 2. DESIGNATION OF VARIOUS PARTS
[1] EXTERNAL DESCRIPTION........................... 2-1
2-2...............................SNOITCURTSNOC]2[ .........
CHAPTER 3. DIMENTIONS
[1] OUTER DIMENTIONS AND
3-1........................................ECNARAELC .........
[2] INNER DIMENTIONS .................................... 3-2
CHAPTER 4. LIST OF ELECTORICAL 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
[2] CHECK MODE OF DEFROST HEATER
(Forced Defrosting) ........................................ 6-1
[3] RE-SETTING OF MICROCOMPUTER AT
POWER FAILURE.......................................... 6-1
[4] DIAGNOSIS 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
[2] R CONTROL COV. ASS'Y.............................8-4
[3] HOW TO REPLACE THE LAMP ...................8-6
[4] DEFROST HEATER ......................................8-7
CHAPTER 9. COOLING UNIT
[1] COOLING UNIT.............................................9-1
[2] LOCATION ....................................................9-2
Parts Guide
CONTENTS
SJ-C19SS/C20XX
No.S1042SJ17GHZTT
Refrigerator-freezer
MODELS
SJ-C19SS-SL/SLG/GR/BL
SJ-C20XX-SL
Refer to "HFC-134a COOLING UNIT" Service Manual for handling this refrigerant.
Refrigerant; HFC-134a
DESTINATION.........T
[1] F-LOUVER ASS'Y .........................................8-1
[3] PRECAUTIONS FORUSING LEAD-FREE
SOLDER......................................................... 5-3
SJ-C20XX SJ-C19SS

35
1 – 1
CHAPTER 1. SPECIFICATION
RATING
Outer dimensions Height
"
Depth
Rate gross volume Total
Freezer
Refrigerator
Defrosting System
Start
Finish
Freezer Compartment F-shelf
Ice cube tray
Ice storage box
Door pocket
Refrigerator Compartment Fresh case
RV-glass shelf ass’y
Vegetable case
Egg pocket
Bottle pocket
Door pocket
1
1
1
Automatic (Adjustable)
Yes
1 (LED)
2-Door
Heater system
Automatic
Automatic
1
1
1
1
1
Items
Type
No-frost freezer
Interior lamp
Evaporating pan
Temperature control
SJ-C19SS
Rated voltage (V~)
Rated frequency (Hz)
Climate class
Rated power input (W)
Rated current (A)
Rated input of heating system (W)
Defrosting input (W)
Net Weight (kg)
Items
Refrigerant (Charging quantity) [Non-flammable]
50
T
101
0.85
121
121
HFC-134a(70 g)
220
Insulation blowing gas [Flammable]
Cyclo pentane (HC)
1
Deodorizer unit 1 (Honeycomb type)
1
1365mm(53.7")
535mm(21.1 )
560mm(22.0")
167liter(5.9cu.ft)
36liter(1.3cu.ft)
131liter(4.6cu.ft)
3
Width
RV shelf
SJ-C20XX
SJ-C19SS SJ-C20XX
-
37
-
3
COLOR
Items -SL
Outside color Silver
Inside color White
PLUG TYPE
Plug cord 2 pin
Plug type -
Destination mark T
-BL
Blue
-SIL
Silver
-GR
Green
SJ-C19SS/C20XX

2 – 1
.TSILSTRAPTNEMECALPERehtnidesusnoitanimonedehtera"]["sisehtnerapnisemanehT
SJ-C20XX
1
2
14
3
9
13
12
11
8
7
6
4
5
16
15
14
17
13
1. Freezer shelf [ F-shelf ]
2. Ice cube tray
3. Ice cube box [ Ice storage box ]
4. Freezer temp.control knob
5. Fresh room
6. Express ice making button
7. LED Light [ Lamp ]
8. Refrigerator temp.control knob
9. Refrigerator shelf
[ RV glass shelf ass’y SJ-C20XX ; 2 pcs.
RV shelf SJ-C19SS ; 2 pcs. ]
11. Vegetable crisper [ Vegetable case ]
12. Stand
13. Magnetic door seal [ Door packing ]
14. Door pocket
15. Egg pocket
16. Light switch
17. Bottle pocket
CHAPTER 2. DESIGNATION OF VARIOUS PARTS
[1] EXTERNAL DESCRIPTION
10
10. Vegetable shelf
[ RV glass shelf ass’y SJ-C20XX
RV shelf SJ-C19SS ]
SJ-C19SS/C20XX

Fan motor
Def-thermistor
F-temp. control knob
R-temp. control knob
Evaporator
Defrost heater
Deodorizing unit
R-thermistor
PWB L ass'y
LED Lamp
Compressor
Starting relay
Protector
Evaporating pan
Mark : Cold air flow
Fuse ass'y
[2] CONSTRUCTION
Stand
2 - 2
LED PWB
Running capacitor
SJ-C19SS/C20XX

3 – 1
[1] OUTER DIMENTIONS AND CLEARANCE
1. SJ-C20XX
2. SJ-C19SS
(Unit:mm)
9
560
1032
535
1092
362
957
535
395
823
1365
6060
60
130
8
(Unit:mm)
1032
535
1092
362
957
535
395
823
1365
60
60
60
130
9
560
615
8
CHAPTER 3. DIMENTIONS
SJ-C19SS/C20XX

3 – 2
[2] INNER DIMENTIONS
(Unit:mm)
380
360
260
375 45
415
65
105
65
170
48
395
370
175
400
390
390
115
175
200
100
190
90
100
80
115
80
225
225
380
220
395 225
190 144 81
1. SJ-C20XX
2. SJ-C19SS
(Unit:mm)
380
360
260
375 45
415
65
105
65
170
48
395
370
175
400
390
390
115
175
200
100
190
90
100
80
115
80
225
225
380
220
395 225
190 144 81
SJ-C19SS/C20XX

4 – 1
Common
Aux. coil Main coil
ITEMS TYPE NAME RATING SPECIFICATIONS
R Thermistor
Defrost Thermistor
―
DC 5V
DC 5V
R0 = 6.4 k , B(0) = 3811
R0 = 6.4 k , B(0) = 3811
Thermo. fuse 12Y
Defrost heater ―220 - 240V 392 135W at 230V
Fan motor 3R00121 AC 200-240V,50Hz
Door switch SDKNA20101 250V 0.25A
125V 0.5 A
3 Terminals push-botton type
Compressor C-BZN100L5L 220-240V/50Hz Cooling capacity : 106 W (50Hz)
Main coil : 23.1
Aux. coil : 28.9
(at 75 °C)
Starting Relay PTH7M220 50/60 Hz 22 ± 4.4 (at 25 °C)
Overload
Relay(Protector) 4TM-189RHBYY-53 Open/ Close : 130 ± 5.0 / 61 ± 9.0°C
Main PWB FPWB-A706CBKZ 220-
240V ―
PXN-36D
250V 2A Working temp. : 76 °C
LED PWB FPWB-A709CBKZ 12V DC Maximum 100 mA , White LED
CHAPTER 4. LIST OF ELECTRICAL PARTS
Running Capacitor RC-EZA249CBZZ 400V 4 F
―
250V 20A

5 – 1
CHAPTER 5. WIRING DIAGRAM
[1] WIRING DIAGRAM
Be sure to replace the electrical parts with specified ones for maintaining the safety and performance of the set.
* Note : R-th assembly on LED PWB
*
SJ-C19SS/C20XX

5 – 2
[2] ELECTRIC ACCESSORIES LAYOUT
SJ-C19SS/C20XX

1. Employing lead-free solder
The PWB of this model employs lead-free solder. This is indicated by the "LF" symbol printed on the PWB and in the service manual. The suffix letter
indicates the alloy type of the solder.
Example:
2. Using lead-free wire solder
When repairing a PWB with the "LF" symbol, only lead-free solder should be used. (Using normal tin/lead alloy solder may result in cold soldered
joints and damage to printed patterns.)
As the melting point of lead-free solder is approximately 40°C higher than tin/lead alloy solder, it is recommend that a dedicated bit is used, and that
the iron temperature is adjusted accordingly.
3. Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is higher and has poorer wettability, (flow), to prevent damage to the land of the PWB, extreme
care should be taken not to leave the bit in contact with the PWB for an extended period of time. Remove the bit as soon as a good flow is achieved.
The high content of tin in lead free solder will cause premature corrosion of the bit. To reduce wear on the bit, reduce the temperature or turn off the
iron when it is not required.
Leaving different types of solder on the bit will cause conta
mination of the different alloys, which will alter their characteristics, making good soldering
more difficult. It will be necessary to clean and replace bits more often when using lead-free solder. To reduce bit wear, care should be taken to clean
the bit thoroughly after each use.
Indicates lead-free solder of tin, silver and copper
[3] PRECAUTIONS FOR USING LEAD-FREE SOLDER
5 - 3
SJ-C19SS/C20XX