Sharp KS-M102 Service Manual Download Page 23

Page: 23 / 30

TROUBLESHOOTING GUIDE

No.

1. Body circuit side

Problem

Rice cooker does not operate.

(Keys are inoperable.)

Cause of problem and location of malfunction

Remedy

When WHT and BLU on PCB ass’y are not

supplied with 220V a.c. check the following.

Power cord is not plugged in the a.c. outlet.

Plug the power cord into

the a.c. outlet.

Faulty wiring of cooking heater ass’y or

thermistor ass’y.

Repair the wire.

Faulty harness of cooking heater ass’y or

thermistor ass’y.

Replace the faulty part.

Open circuit in power cord or faulty cord reel.

Replace the cord reel

ass’y.

Blown temperature fuse.

Replace the thermistor

ass’y and faulty parts.

When WHT and BLU on PCB ass’y are supplied

with 220V a.c. check the following.

Faulty outer frame and PCB ass’y or

defective key top causing one or more keys

to remain depressed.

Faulty PCB ass’y.

Repair the assembly or

replace faulty parts.

Replace the PCB ass’y.

Some keys are inoperable.

Faulty outer frame and PCB ass’y parts or

faulty key top (rendering keys inoperable).

Repair the assembly or

replace faulty parts.

Faulty PCB ass’y.

Replace the PCB ass’y.

Faulty timer operation

(Rice cooker does not

operate as programmed.)

Faulty wiring.

Repair the wire.

Faulty PCB ass’y.

Replace the PCB ass’y.

Rice cooker does not cook.

4-1

Faulty cooking heater.

Replace the cooking

heater ass’y.

Faulty wiring of cooking heater ass’y.

Repair the wire.

Faulty harness of cooking heater ass’y.

Replace the cooking

heater ass’y.

Faulty thermistor.

Replace the thermistor

ass’y.

Faulty PCB ass’y.

Replace the PCB ass’y.

Rice is not properly cooked.

Uneven cooking.

Rice uncooked at the core

due to premature shutoff.

4-2

Inappropriate quantity of rice or water.

Use correct amounts of

rice and water.

Lid is not closed tightly.

Repair the lid or close

the lid tightly.

Steam cap is not installed properly.

Install the steam cap

securely.

Foreign matter on top surface of cooking

heater ass’y and/or bottom surface of inner pot

causing inadequate contact.

Remove foreign matter

or replace faulty parts.

Summary of Contents for KS-M102

Page 1: ...WARMING TEST METHOD INSPECTION AND OPERATION CHECK BEFORE CALLING FOR SERVICE SERVICING POST REPAIR INSPECTION TROUBLESHOOTING GUIDE SERVICE PARTS LIST Page 2 2 3 4 5 6 7 8 10 11 11 12 16 16 17 18 19 20 21 22 22 23 25 26 30 ELECTRONIC JAR RICE COOKER WARMER MODELS KS M102 KS M182 In the interests of user safety Required by safety regulations in some countries the set should be restore to its origi...

Page 2: ...eme caution must be used when moving an appliance containing hot food water or other hot liquids 12 To disconnect press the WARM CLEAR button then remove plug from wall outlet 13 Do not use the appliance for other than intended use IMPORTANT SAFEGUARDS 1 Use the rice cooker on a 220V 50Hz a c only protected electrical supply 2 Be sure to remove the sheet of protective paper located between the inn...

Page 3: ... cover 3 Inner lid packing Steam cap Inner lid Inner pot handle Handle Panel ring OPERATION BOARD DISPLAY WARM CLEAR BUTTON WARM LAMP PRESET BUTTON MENU LAMP MENU COOK BUTTON MINUTEBUTTON HOURBUTTON PRESET LAMP Thermister plate ass y Power cord Lid Lid cap ...

Page 4: ...Depth Weight of product approx kg Height Direct heating type 274 305 347 179 375 219 3 1 3 9 Safety device Temperature fuse 169 o C Cooking Chart Cooking time is set at specified voltage room temperature 20 25 o C water temperature 20 25 o C and under standard water level Cooking time may vary a little depending on the kind or volume of rice and ingredients room temperature water temperature volta...

Page 5: ...e spec 1960 Ω m 21J3311 Power 25W Resistance 1936 Ω 5 Resistance wire spec 1959 Ω m 21A109TASY MODEL KS M102 Name of part Cord reel ass y Heater plate ass y Side heater ass y PCB ass y Lid heater ass y Part specification Inner lid ass y Thermistor plate ass y Part No Cord length 1 03 m 21J400ASY 220V 830W rating wattage 22J3061ASY Thermistor type with connector Temperature fuse 169 o C 10A 22J3121...

Page 6: ...se clean clear water Do not use any inner pot other than the exclusive one The water level marking is a standard guide and may be adjusted slightly depending on the kind of rice or your liking Remember that adding too much water may cause boiling over Carefully align marks when replacing the steam cap in the lid Foreign matter adhered to the outside of the inner pot heater plate and thermistor pla...

Page 7: ...d with seasoning especially sake sugar ketchup tomato puree and etc 3 Warming Because to keep the lid closed even at meals Use for 12 hours or less for best results Avoid using for a small amount of rice Use for keeping warm rice warm the setting is not intended to be used for refrigerated or room temperature rice Use for keeping plain rice warm Do not keep rice warm with any utensil such as the p...

Page 8: ...8 CIRCUIT DIAGRAM ...

Page 9: ...9 SCHEMATIC DIAGRAM PCB ass y ...

Page 10: ...10 ...

Page 11: ...supply cord to outlet electric wall 2 Press the HOUR button or press MINUTE button for more than 1 second the clock display blink 3 Press the Hour button or press the MINUTE button to adjust the clock If the button is hold down and not released the clock changes continuous The clock display flashes 5 second to unflashes will be clock adjusting is complete Thermistor temperature o C Thermistor resi...

Page 12: ...Turn the rice cooker upside down and remove the 4 screws fixing the body 2 Remove the body from the panel ring 3 Remove the cord reel from the body 4 Remove the nut holding lead wire earth with the body 5 Now the body is free Fig 2 Screw Body REMOVE OF LIDASS Y 1 Remove the body in accordance with REMOVE OF BODY 2 Disconnect lead wire from PCB ass y and remove the screw holding lead wire earth fro...

Page 13: ...up 6 Now the lid ass y is free Fig 4 13 REMOVE OF LID COVER 1 Remove lid in accordance with REMOVE OF LID ASS Y 2 Close the lid cover Push on the hinge pin and using the pilers or similar to pull out from lid cover 3 Pull out further the lead wire PCB and lead wire earth 4 Remove 6 screws and remove the inner lid from lid cover 5 Now the lid ass y is free Inner lid fixing screws Fig 5 Pliers Hinge...

Page 14: ...nnect all lead wires of heater plate from the PCB ass y Fig 7 3 The heater plate ass y comes off by removing 3 screws Fig 7 4 Now the heater plate ass y is free Lead wires of lid heater Fig 6 CAUTION When assembling be sure not to catch the lead wires for the inner lid heater As shown in Fig 6 the lead wires of the lid heater are to be passed under the rib of the lid cover and passed above the hin...

Page 15: ... ass y is free 15 DISENGAGEPCBASS Y 1 Remove body in accordance with REMOVE BODY 2 Disconnect all the lead wires of PCB ass y 3 Set the outer frame toward you 4 Peel off the key sheet 5 Remove the 3 screws fixing the PCB ass y to the body Fig 8 6 Now the PCB ass y is free PCB ass y fixing screws Fig 8 Always replace the display cushion because it may be damaged CAUTION Fig 9 1 Remove body in accor...

Page 16: ...sengaged Fig 10 CAUTIONSINASSEMBLY 1 Setting cord reel ass y Be sure to set the cord reel lead wires blue black through type holes provided in the recess of the body 2 Affixing the display cushion Peel the backing from the display cushion and affix the display cushion inside the border of the key top 3 Installing the body When installing the body make sure internal lead wires are not routed over t...

Page 17: ...mpletion of the simulated cooking measure the time the warming lamp ON and simultaneously open the lid and confirm against presence or not of water in the inner pot 3 Judging criteria The rice cooker may be judged to be roughly good when the display is normal and the following conditions are satisfied 1 Contact with the heater plate is close enough if the bubbling condition is uniform along the pe...

Page 18: ...and after energizing about 2 minutes the WARM CLEAR button is pressed to cancel Then press the WARM CLEAR button to select warming and continue warming for about 1 hour 2 It is OK if the reading of the bar thermometer is within the following range 3 When the above temperature specification is not satisfied replace the thermistor ass y in the Replacing method for main parts How to remove heater pla...

Page 19: ... RICE WARM CLEAR PRESET Red Red Red Red Red YELLOW GREEN Release key Push key of Rice cook menu COOK Release key 3 Push key of Rice cook menu COOK Release key 4 It is turned on around all LED 570 640 W Measure it within four seconds Consumption electric power of rice cook 770 850 W 80 110 W 110 137 W 5 Push key of HOUR or MINUTE for set value of HOUR Up and Down follow present time Push key of Ric...

Page 20: ... Red Red Red YELLOW GREEN 9 Push key of WARM CLEAR TIMER is operate Colon blink 10 Power SW OFF After 2 seconds LCD is indication present time and operate with battery Colon not blink Note The 220 V a c power supply using a stabilized power supply Reason If the primary voltage is not decided properly The A D vale indication error occurs and the operation test No 2 LED Red at menu GLUTINOUS rice is...

Page 21: ...ediately after cooking When rice is kept warm Rice is not cooked at programmed time Power interruption occurred Display shows E Did you push the COOK button after pressing the PRESET button Rice may not be cooked properly Because power interruption make programmed time clear Press WARM CLEAR button If E does not disappear call for service Abnormal sound is generated Steam appear from other than th...

Page 22: ...er under soldering over soldering tunnel etc As to tab terminals be sure to solder after lead clinching POST REPAIR INSPECTION 1 Reconfirmation of work done and inspection 1 Is anything left carelessly such as screw spacer 2 Is there no mis wiring 3 For final inspection and operation check Refer to page 19 Are key operation and display corrected 2 Insulation performance 1 Insulation resistance tes...

Page 23: ...eys are inoperable 2 Faulty outer frame and PCB ass y parts or faulty key top rendering keys inoperable Repair the assembly or replace faulty parts Faulty PCB ass y Replace the PCB ass y Faulty timer operation Rice cooker does not operate as programmed 3 Faulty wiring Repair the wire Faulty PCB ass y Replace the PCB ass y Rice cooker does not cook 4 1 Faulty cooking heater Replace the cooking heat...

Page 24: ...ater or faulty installation Repair the side heater Faulty thermistor Replace the thermistor ass y Faulty PCB ass y Replace the PCB ass y Warm function operates but rice becomes dry Warm temperature too high Rice is too dry Rice turns yellowish Rice has a strange smell 6 2 Lid is not closed tightly Repair the lid or close the lid tightly Steam cap is not installed securely Install the steam cap sec...

Page 25: ... ass y Replace the thermistor ass y Replace the PCB ass y 6 3 Warm function operates but rice becomes watery Warming temperature too low Rice becomes sticky Too much condensation Rice becomes yellowish Rice has a strange smell Sour or old smell Faulty thermistor 25 1 When the cooker does not warm rice properly check caution items at warming page 7 2 When thermistors open or short TIMER display on ...

Page 26: ... 1 2 6 21J116 SUPPORT PIN 1 2 7 21J117 HINGE PIN 1 2 8 21J133 HINGE SPRING L 1 2 9 21J134 HINGE SPRING R 1 2 10 21A2061 INNER LID PACKING 1 2 11 21A121 STEAM CAP PACKING 1 2 12 21A122 STEAM CAP 1 2 13 21J203ASY INNER POT ASS Y 1 2 13 1 21J205ASY INNER POT HANDLE ASS Y 1 2 14 21J101ASY BODY ASS Y 1 2 15 21J301ASY OUTER POT ASS Y 1 2 16 21J130 PANEL RING 1 2 17 21J105 LATCH BUTTON 1 2 18 21J106 LATC...

Page 27: ...PLATE ASS Y 1 3 3 21J3061ASY HEATER PLATE ASS Y 1 3 4 21J401ASY PCB ASS Y 1 3 5 W07A105XC LEAD WIRE BAND 1 3 6 21J440ASY EARTH WIRE ASS Y Inner Lid Outer Pot Cord Reel 1 3 7 B03A445DI MAIN LEAD WIRE PCB Cord Reel 1 ELECTRIC PARTS SERVICEPARTS LIST REF NO DESCRIPTION Q TY PRICE ...

Page 28: ... PACKING 1 2 6 22J116 SUPPORT PIN 1 2 7 21J117 HINGE PIN 1 2 8 22J133 HINGE SPRING L 1 2 9 22J134 HINGE SPRING R 1 2 10 22A2061 INNER LID PACKING 1 2 11 21A121 STEAM CAP PACKING 1 2 12 21A122 STEAM CAP 1 2 13 22J203ASY INNER POT ASS Y 1 2 13 1 21J205ASY INNER POT HANDLE ASS Y 1 2 14 22J101ASY BODY ASS Y 1 2 15 22J301ASY OUTER POT ASS Y 1 2 16 22J130 PANEL RING 1 2 17 21J105 LATCH BUTTON 1 2 18 21J...

Page 29: ...PLATE ASS Y 1 3 3 22J3061ASY HEATER PLATE ASS Y 1 3 4 22J401ASY PCB ASS Y 1 3 5 W07A105XC LEAD WIRE BAND 1 3 6 22J440ASY EARTH WIRE ASS Y Inner Lid Outer Pot Cord Reel 1 3 7 B03A495DI MAIN LEAD WIRE PCB Cord Reel 1 ELECTRIC PARTS SERVICEPARTS LIST REF NO DESCRIPTION Q TY PRICE ...

Page 30: ...30 ...

Search results

Summary of Contents for KS-M102

Reviews:

Related manuals for KS-M102

Brands by name

Popular brands

Sharp KS-M102, Service Manual

Search results

Summary of Contents for KS-M102

Reviews:

Related manuals for KS-M102

Brands by name

Popular brands