Sharp SJ-RM320TB, Service Manual

Page 1: ...IT DIAGRAM 13 4 PRECAUTIONS FOR USING LEAD FREE SOLDER 19 8 FAILURE DIAGNOSIS 1 OUTLINE OF CONTROL 20 2 WHEN THE DEFROSTING FAILURE IS DOUBTFUL 20 3 RE SETTING OF MICROCOMPUTER AT POWER FAILURE 20 4 DIAGNOSIS METHOD OF FAILURE AROUND PWB 21 5CONVERSION TABLE BETWEEN TEMPERATURE AND RESISTANCE VALUE 22 9 SELF DIAGNOSIS MODE 23 10 MODE FOR DISPLAY 30 11 DISASSEMBLING ASSEMBLING PROCEDURES 31 12 COOL...

Page 2: ...ides with a minimum space of 9 cm above the refrigerator This refrigerator shall be used under the ordinary place condition between 5 ºC and 43 ºC of ambient temperature and also not be left under 10 ºC for long days To be used this refrigerator within the range of the rated voltage 6 ENERGY LABEL DATA This label is in Operation manual ENERGY LABEL BASE of each language Refrigerator Data part E B ...

Page 3: ...aster 4 Evaporating pan 1 unremovable Refrigerator Compartment R glass shelf ass y 2 V glass shelf ass y 1 Vegetable case 1 V parting plate 1 C shelf ass y 1 Chilled case 1 Pocket cover 1 Utility pocket 1 Door pocket 2 Egg tray 1 Bottle pocket 1 Tube stand 1 Freezer Compartment Ice cube maker Twin ice cube maker Ice storage box 1 F case S ass y 1 F case M ass y 1 F case L ass y 1 F glass shelf 1 C...

Page 4: ...of heating systems W 121 142 Defrosting input W 121 142 Refrigerant Charging quantity R 600a 57 g Flammable R134a 110 g Non flammable Insulation blowing gas Cyclo pentane NON CFC Flammable Net Weight kg 79 71 79 71 79 PLUG TYPE Plug cord 2pin Earth Plug type CS Destination mark E COLOR Items S SL BK BE B WH Outside color Silver Black Beige White Inside color White White White White Receptacle ...

Page 5: ...30V 50Hz at 25 C 235 325 385 EN153 2006 kWh year kWh year kWh year 7 Net storage volume of fresh food storage compartment 237L 237L 237L 8 Net storage volume of frozen food 4star compartment 89L 89L 89L 9 Star rating of frozen food compartment 10 No frost No frost No frost No frost 11 Temperature rise time 16h 15h 15h at 25 C 12 Freezing capacity 4 5kg 24h 4 5kg 24h 4 5kg 24h at 25 C 13 Climate cl...

Page 6: ...e cover 17 Caster 18 Adjustable feet Adjustable leg ass y 19 Utility pocket cover Pocket cover 20 Utility pocket 21 Egg holder Egg tray 22 Door pocket 23 Bottle stopper Tube stand Tube stand 24 Bottle pocket 25 Magnetic door seal Door packing 2 CONSTRUCTIONS 1 2 3 4 5 6 7 8 9 10 11 12 13 15 14 16 17 18 25 19 20 21 22 23 24 25 SJ WS320T Refrigerator compartment Freezer compartment Evaporator Mark C...

Page 7: ...IMENSIONS AND CLEARANCE 1 SJ WS320T WP320T WM322T 2 SJ RP320T RM320T 600 650 60 991 1850 90 14 6 5 63 5 70 5 712 5 Unit mm 60 60 375 375 130 600 1240 1300 Unit mm 380 1040 130 1003 62 717 66 600 1240 1300 1850 90 650 60 60 60 600 11 5 7 5 ...

Page 8: ...80 5 114 5 82 5 159 211 5 152 5 195 5 195 5 224 472 472 419 5 416 96 303 303 303 237 222 258 223 181 249 97 5 97 5 118 416 393 501 400 5 446 212 123 452 396 5 396 5 2 INNER DIMENSIONS The dimensions between shelves can be changed by setting the shelves on the other rails ...

Page 9: ...246CBZZ MRA58142 6 Open Close 105 61 ºC SJ RP320T SJ WP320T RHOG A247CBZZ 4TM276NFBYY 53 Open Close 115 125 70 52 ºC SJ RM320T SJ WM322T RHOG A207CBZZ 5TM232RFBYY 53 Open Close 130 5 0 61 9 0 ºC Starting Relay SJ WS320T SJ RP320T SJ WP320T RSTT A173CBZZ PTH8M150MD2 15 20 Ω at 25 ºC SJ RM320T SJ WM322T RSTT A203CBZZ PGN6SBT 33 6 6Ω at 25 ºC Running capacitor SJ WS320T SJ RP320T SJ WP320T RC EZA289C...

Page 10: ...e set 1 SJ WS320T RP320T Fuse2 Fuse3 AC DC MAIN PWB Inverter PWB Br Bl Protector Fuse Defrost Heater Compressor Defrost thermistor F thermistor Damper Plasmacluster R thermistor Plug Cord TERMINAL 1 2 3 4 5 6 7 8 9 1011 121314151617181920 5 4 3 2 1 R reed SW Display PWB ass y LED LED Light 1 2 3 4 5 6 7 Fuse1 Fuse4 6 5 4 3 2 1 1 2 3 1 2 3 1 2 3 4 5 1 2 3 4 ...

Page 11: ...se Defrost Heater Running capacitor Defrost thermistor F thermistor Damper Plasmacluster R thermistor Plug Cord 1 2 3 4 5 6 7 8 9 1011 121314151617181920 5 4 3 2 1 R reed SW Display PWB ass y LED LED Light 1 2 3 4 5 6 7 8 9 10 Compressor PTC starter Br Protector Bl Gy TERMINAL ...

Page 12: ...SJ WS320T S 12 2 ELECTRIC ACCESSORIES LAYOUT 1 SJ WS320T RP320T ...

Page 13: ...SJ WS320T S 13 2 SJ WP320T ...

Page 14: ...SJ WS320T S 14 3 SJ RM320T WM322T ...

Page 15: ...GND SGND 2SD2395 Q18 HZ12A2 ZD2 0 1u 50V C51 1SS133 D14 1 10W 11KF R14 1 10W 10K R13 1 10W 560F R15 1 10W 2 4KF R16 470u 10V C23 Jumper JMP6 6 8kF R17 7 5kF R83 VM 14 5V 0 1u C79 0 1u C81 100u C65 100u C64 0 1u 25V C66 0 1u 25V C67 0 1u 25V C68 0 1u 25V C69 VDD 5V 0 1u 25V C70 0 1u 25V C80 VM 14 5V SGND SGND 100u 25V C27 0 1u C28 0 1u C78 1 B5B PH K S CN12 1 03P SDN CN3 32V 500mA F5 12 R56 SGND SG...

Page 16: ...Jumper JMP5 HS29455 HS29457 or HS29455 TNR14V471K VRS1 910K AX1 2W R1 non flame 910K AX1 2W R2 non flame 4700p 250V C2 EG01C D4 EG01C D1 MR4010 IC2 D1NL20U D2 Open C16 1 10W 11KF R14 1 10W 560F R15 1 4W 1K R12 0 1u C15 1 10W 10K R13 1 10W 2 4KF R16 REF A K TA76431S IC3 390 0 5W R81 390 0 5W R82 390 0 5W R53 390 0 5W R54 TP8 RE 1201 C46 Jumper JMP6 1800u 25V C17 RL2Z D5 RK46 D6 0 1u C19 0 1u C20 10...

Page 17: ... 4 7k R176 SW3 2 7k R172 0 01u C172 SW4 SW4 4 7k R177 2 7k R173 0 01u C173 2 1 SKQNADD010 SW101 2 1 SKQNADD010 SW102 2 1 SKQNADD010 SW103 2 1 SKQNADD010 SW104 5V 5V GND GND 10k R178 RESET VL KRC101S Q164 Orange LED102 GND GND LED 2 Rating of capacitors without appointment are 0 01u 50V 0 1u 50V 1 B4B PH KL CN102 2 B4B PH KL CN102 3 B4B PH KL CN102 4 B4B PH KL CN102 KRC101S Q180 KRC101S Q181 1 2 3 ...

Page 18: ...SW4 4 7k R177 2 7k R173 0 01u C173 2 1 SKQNADD010 SW101 2 1 SKQNADD010 SW102 2 1 SKQNADD010 SW103 2 1 SKQNADD010 SW104 5V 5V GND GND 10k R178 RESET VL KRC101S Q164 Orange LED102 GND GND LED 2 Rating of capacitors without appointment are 0 01u 50V 0 1u 50V 1 B4B PH KL CN102 2 B4B PH KL CN102 3 B4B PH KL CN102 4 B4B PH KL CN102 KRC101S Q180 1 2 3 CSTLS8M00G56 A0 CF101 1N4005SG A2 D101 1 03P SJN CN10...

Page 19: ...ingly 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 reduc...

Page 20: ...OSE of the electrical damper Def thermistor detects the temperature around the evaporator and shows the progress of defrosting Outside temp thermistor reads the surrounding temperature of refrigerator It changes the operation mode by the outside temperature 2 WHEN THE DEFROSTING FAILURE IS DOUBTFUL Execute the Self Diagnosis Mode Refer to the Chapter SELF DIAGNOSIS MODE In case the diagnosis resul...

Page 21: ... or F2 or F3 SJ WS320T RP320T F1 or F2 SJ WP320T RM320T WM322T is melt down PWB does not operate at all No cooling and no indoor lamp When the fuse F4 SJ WS320T RP320T F3 SJ WP320T RM320T WM322T is melt down only defrosting heater is not electrified It will be diagnosed as Defrosting failure by the self diagnosis Melting in the fuse cannot be checked visually as the safer one than transparent glas...

Page 22: ...3 1 16 15 3 0 6 4 20 2 5 15 14 4 1 6 1 25 2 0 14 13 6 2 5 8 30 1 6 13 12 9 3 5 5 35 1 3 12 12 2 4 5 2 40 1 1 11 11 5 5 5 0 10 10 9 6 4 7 2 Def thermistor Temperature C Resistance Value KΩ Temperature C Resistance Value KΩ Temperature C Resistance Value KΩ 25 61 2 9 24 1 7 10 6 24 57 5 8 22 9 8 10 1 23 54 1 7 21 7 9 9 6 22 50 9 6 20 5 10 9 2 21 47 9 5 19 5 11 8 7 20 45 2 4 18 5 12 8 3 19 42 6 3 17 ...

Page 23: ...zzer Defect and various conditions are displayed on the control panel In case of plural defects and various conditions these are displayed one after another by button operation and all contents are notified Forced release operation is not prepared for the self diagnosis mode It returns to the normal movement after a lapse of 2 minutes 3 Display of self diagnosis Display example of control panel at...

Page 24: ...D light PWB or main PWB 11 17 LED light PWB voltage defect Right side E 82 12 18 F thermistor system defect history H 61 Defect of thermistor system has been occurred over 1 minute continuously within the past 48 hours 1 19 R thermistor system defect history H 62 2 20 DEF thermistor system defect history H 63 3 21 Outside temperature thermistor system defect history H 64 4 22 F fan motor system de...

Page 25: ...ance between and Replace main PWB NG NG NO NO YES YES Remove 2P connector from left side R room lamp Assy and measure the thermistor resistance between and 01 61 75 02 62 76 1 2 5 3 4 5 2 47 Replace main PWB Isn t there any problem with the door packing Isn t there any problem with the installation condition High temperature Direct sunlight Installation space etc Check the cold air outlet port and...

Page 26: ...orced defrosting Measurement is impossible when DEF thermistor is set at 10 C or higher because defrosting ends immediately Disconnect CN1 from the main PWB Measure the resistance between and of CN1 SJ WS320T RP320T or between and of CN1 SJ WP320T RM320T WM322T on the wiring Check defrost heater wiring for loose connection or disconnection Check cause of defrosting failure Check door packing Check...

Page 27: ...d YES 8 Replace Plasmacluster Plasmacluster system diagnosis NO NO YES and of CN5 on the main PWB are positively engaged DC 14 5V Closed the refrigerating room door YES and of 6P connector on R c box Assy are positively engaged Under compressor operating close the door switch Replace Fan motor Fan locked Check position of fan 3P connector to the Display PWB is positively engaged YES 11 73 7 NO Rep...

Page 28: ...h the heat radiation space of the refrigerator installation location Improve the installation condition heat radiation space Replace the compressor NO NO NO Improve the wiring NO YES YES YES YES YES YES Measure the voltage between and of connector CN01 of the inverter PWB Is it about 220 VAC Disconnect connector CN2 of the main PWB and measure the resistance between pins and on the wiring side Is ...

Page 29: ...he 2P connector of the left LED light PWB Replace the left LED light PWB NO YES Replace the main PWB 11 81 Power OFF Are pins and of connector CN15 of the main PWB are securely connected to the 2P connector of the right LED light PWB Replace the right LED light PWB NO YES Replace the main PWB 12 82 LED light system of right side diagnosis ...

Page 30: ...ss the button over 5 seconds at the opening condition of the refrigerating room door Even without the above operation release can be made by main power OFF 3 Movement in the mode 1 Compressor fan motor heater and Plasmacluster are stopped 2 Damper is always made CLOSE condition 3 Indoor lamp is lit when door is open 4 LED display LED display will be displayed in turn automatically 5 Door alarm is ...

Page 31: ...cessories shelves vegetable case chilled case etc 2 Remove the R shower duct ass y 3 Remove the C shelf ass y Latch R shower duct ass y 2 Screw hole cover Screw 1 4 Remove the the Duct cover When installing the cover first insert the lower latch 5 Remove the the R control cov ass y and disconnect the connectors When installing the R control cov ass y take care not to tuck lead wires Screw 2 1 C Sh...

Page 32: ... cp front to R shower duct 3 Fix Al panel to R shower duct AI panel R shower duct R shower insu a A sealer r shower d Screw hole cover A sealer cp front R shower insu a R shower insu a A sealer r shower d A sealer r shower d All around NG OK A sealer r shower d OVER LAP 25 30 0 2 AI panel R shower duct R shower insu a Screw hole cover ...

Page 33: ...pe 6 Stick A sealer damper to 5 ass y 7 Stick Ra sealer a to 5 ass y Ra sealer a R air guider b R air guider a Plasmacluster unit R c box cover A sealer rc d Damper ass y A sealer damper A sealer rc d R c box harness Damper ass y S o W o R air guider a Plasmacluster unit Damper ass y Ra sealer a Ra sealer a Ra sealer a R air guider b R air guider a Damper ass y Damper ass y A sealer damper A seale...

Page 34: ... Included main parts LED lamp pwb ass y Inside LED cover 1 Remove the Screw cover and the Screw 2 Remove the Led cover R c box cover Hook Hook A217 A295 PP PS Led cover L Led cover R Screw cover Led lamp pwb ass y Led lamp pwb ass y Screw cover R thermistor Screw cover Front ...

Page 35: ... Ice frame Insert the flat head screwdriver into the latch and lift and move it to the right 3 Remove the Fan louver s 4 Remove the Fan louver Latch Ice frame Latch Latch 2 Screw 1 Fan louver s Fan louver Latch 2 Latch Screw 1 5 Remove the Ev terminal cover and disconnect the connectros 6 Remove the E v cover When installing the E v cover take care not to tuck lead wires Ev terminal cover Screw 1 ...

Page 36: ...r E v cover sealer a E v cover sealer a Ev cover al E v cover sealer b Def thermistor F thermistor E v cover Fuse ass y Ev cov sealer c E v cover sealer d F fan motor Put in the concavity E v cover Let wire harness go outside within this range Put wire harness in the inside and stick saeler Ev cov sealer c 40 50 SEC AA Def thermistor F thermistor 1 2 3 4 5 6 YLP 06V B V0 ...

Page 37: ...a E v cover sealer a Ev cover al Def thermistor Fuse ass y AL TAPE T40 W40 L380 OVER LAP 20 30 Ev cov sealer d T40 Ｗ30 L30 T40 Ｗ100 L150 AL TAPE AL TAPE Bend and stick Al tape 0 2 0 2 0 2 F fan motor E v cover sealer a E v cover sealer a E v cover sealer a E v cover sealer a E v cover sealer b E v cover sealer b E v cover sealer b F thermistor All around A A OVER LAP 40 50 0 2 0 5 0 5 0 5 0 5 ...

Page 38: ...TO REMOVE THE CONTROL PANEL Included main parts Display pwb ass y Inside Control box base 1 Remove the Control panel 2 Remove the Control box base 1 1 2 1 2 1 1 Control panel Control panel Control panel Control box base A A ...

Page 39: ...e care not to hurt yourself by fin of Evaporator Figure A 3 Evaporator Food liner convex part Food liner convex part Evaporator Pipe Evaporator 2 Replacement of Def heater ass y 1 Remove the Ev cover al the Fl al sheet Remove the Screw 2 Take off the Drain support al from the food liner Figure A 4 3 Raise the protrusion part of Drain support al Then remove Heater cover Figure A 5 4 Open Def heater...

Page 40: ...support 90 Figure A 8 7 Assemble Defrost heater to Drain support al 8 Assemble Heater cover to Drain support al Bend top edge to outside 9 Stick the Vinyl tape on the Lead wire of Defrost heater ass y Figure A 9 Drain support al Heater cover Def heater ass y Drain support al Drain support al ...

Page 41: ...deform significantly and break the pipes 2 Take care not to damage the lead wires and hurt yourself by the fin of Evaporator 3 You shouldn t touch Defrost heater with your bare hand You should wear pure gloves 4 You should wipe that with alcohol When you touch Defrost heater with your bare hand Fl al sheet 3 Adjust to bottom line Fl al sheet 1 Adjust to left end of Heater support 4 Adjust to proje...

Page 42: ...AK A281CBEZ is required 1 Parts constitution of Dual swing doors 1 Refrigerator door R door R door ass y R door cam tl k R door cam tr k R door cam br k Cam lever r Cam lever l R door cam bl k Roller base r ass y Roller base l ass y Door stopper l Door stopper r Table support R hinge cam tr R hinge cam tl R upper hinge ass y Upper hinge cover R btm hinge s ass y ...

Page 43: ... tr C hinge support r Center hinge cover l Center hinge cover r C hinge support l F door ass y Door cam cover l Door cam cover r F door cam tl k F door cam tr k F door cam br k Roller base r ass y Roller base l ass y Door stopper r F btm hinge s ass y F door cam bl k Door stopper l A B B C D A C D Cam lever r Cam lever l ...

Page 44: ...is attached to a door pocket Put the foods in the refrigerator in order Remove the accessory Adjust or replace the hinge YES NO The refrigerator is placed on uneven floor The refrigerator is not installed horizontally Correct step to provide smooth plane Fine adjust with adjustable foot Problem remains unsolved Adjust or replace the hinge 2 Door troubleshooting Symptom and corrective action Sympto...

Page 45: ...ace Side face Inner side face and inner bottom face Upper face 4 How to install the door R and F doors 1 To four corner Door cams apply silicone oil to the part shown in the figure below 2 Engage the edge of the door with the left hinge pin Without door cam 3 Close the door While pressing it from the right side open it at the opposite side 4 Install the Door cam tl k 5 Install the Door cam cover l...

Page 46: ... to right and left F upper hinge ass y respectively 2 Install C hinge support r and l to the Cabinet respectively 3 Install F upper hinge ass y 4 Install C hinge support tr and tl 5 Install C hinge cover r and l F upper hinge ass y F hinge cam tr C hinge support r F upper hinge ass y C hinge support tr C hinge cover r ...

Page 47: ...When the cause is 1 above use Adjustable foot Extend the Adjustable foot until the opposite side Adjustable foot is raised While checking opening condition of left and right doors readjust the Adjustable foot 2 If the adjustment with the Adjustable foot is not complete cause 2 readjust as follows using the spacer kit for adjustment Spacer kit for adjustment On some models these spacers were instal...

Page 48: ...eight between right and left Rollers should be within 0 5 mm Side view Run on height Acceptable run on height The run on height may be checked by referring to the figure shown below Gradually open the door until it goes to the highest position and measure the space between the bottom of the door and the top of Btm hinge s ass y Run on height Front view R F Roller spacer Door cam spacer Align the r...

Page 49: ...ront align the Hinge cam of R upper hinge ass y with the Door cam This requirement also applies to the right side R upper hinge ass y Table support Use this screw for positioning Pull the R upper hinge ass y toward you 5 Check the clearance between the R upper hinge ass y and Door cam When clearance is narrow while the door is opening closing R upper hinge ass y and Door cam rub against each other...

Page 50: ...ing from the front align the Hinge cam of F upper hinge ass y with the Door cam These end faces should be on the same line This requirement also applies to the right side 5 Check the clearance between the F upper hinge ass y and Door cam When clearance is narrow while the door is opening closing F upper hinge ass y and Door cam rub against each other When the clearance is wide evenly place the Rol...

Page 51: ...SJ WS320T S 51 12 COOLING UNIT 1 COOLING UNIT Mark Refrigerant flow ...

Page 52: ... copper Mark shows pinch points SUCTION PIPE S P CONNECTOR EVAPORATOR CAPILLARY TUBE DRYER CHARGE PIPE L CHARGE PIPE L HOT PIPE DCP CONNECTOR F DP CONDENSER COMPRESSOR S P CONNECTOR CAPILLARY TUBE HOT PIPE INLET CHARGE PIPE L A253 DRYER SUCTION PIPE DPC CONNECTOR HOT PIPE OUTLET COMPRESSOR CHARGE PIPE L A253 F DP CONDENSER INLET F DP CONDENSER OUTLET ...

Page 53: ... L HOT PIPE DCP CONNECTOR F DP CONDENSER COMPRESSOR Mark shows welding points steel to copper Mark shows welding points Copper to copper Mark shows pinch points CAPILLARY TUBE DRYER SUCTION PIPE HOT PIPE OUTLET COMPRESSOR CHARGE PIPE L A253 F DP CONDENSER INLET F DP CONDENSER OUTLET CHARGE PIPE L A726 HOT PIPE INLET DPC CONNECTOR S P CONNECTOR ...

Page 54: ...NNECTOR F DP CONDENSER COMPRESSOR MUFFLER ASS Y Mark shows welding points Steel to copper Mark shows welding points Copper to copper CHARGE PIPE L S P CONNECTOR CAPILLARY TUBE HOT PIPE INLET DRYER SUCTION PIPE DPC CONNECTOR HOT PIPE OUTLET COMPRESSOR F DP CONDENSER INLET F DP CONDENSER OUTLET MUFFLER ASS Y CHARGE PIPE L A726 CHARGE PIPE L A726 ...