Sharp Carousel R-1210 Service Manual Download Page 29 | Manualshive

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R-1210
R-1211

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Figure S-4. Printed Wiring Board

CN - F

DIP

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Summary of Contents for Carousel R-1210

Page 1: ... SERVICE PERSONNEL 1 MICROWAVE MEASUREMENT PROCEDURE 2 FOREWORD AND WARNING 3 PRODUCT SPECIFICATIONS 4 CONTROL PANEL 4 OPERATION 5 TROUBLESHOOTING GUIDE 7 TEST PROCEDURE 8 TOUCH CONTROL PANEL ASSEMBLY 14 COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE 20 PICTORIAL DIAGRAM 24 POWER UNIT CIRCUIT 25 LSI UNIT CIRCUIT 26 PRINTED WIRING BOARD 27 PARTS LIST 28 PACKING AND ACCESSORIES 33 S2203R1510X R 1210...

Page 2: ... and 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 Microwa...

Page 3: ...citor 4 Disconnect the leads to the primary of the power transformer 5 Ensure that these 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: ...y 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 Mode 5 Close t...

Page 5: ...azard WARNING Never operate the 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 not any other visible damage with the oven Servicing and repair work must be carried out only by trained service personnel DANGER Certain initial parts are intentio...

Page 6: ...ull 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 CUSTOM HELP pad KEEP WARM PLUS pad ACCENT LIGHT pad TASK LIGHT pad REHEAT pads SENSOR COOK CENTER pad DEFROST CENTER ...

Page 7: ... power level needed for best results When the foodiscooked watervaporisdeveloped Thesensor senses the vapor and its resistance increases gradually When the resistance reaches the value set according to the menu supplementary cooking is started The time of supplementary cooking is determined by experiment with each food category and inputted into the LSI An example of how sensor works Baked potatoe...

Page 8: ... 1 0µF AC2300V HIGH VOLTAGE RECTIFIER COM N O COM CONTROL UNIT GND GRN A1 A3 A5 N O B2 B1 DOOR SENSING SWITCH PRIMARY INTERLOCK SWITCH 120 V AC 60 Hz HOOD LAMP HL RY1 RY2 SECONDARY INTERLOCK RELAY OVEN LAMP RELAY FM OL TTM RY3 RY4 CAVITY TEMPERATURE FUSE HL F1 F2 F3 AH SENSOR TURNTABLE MOTOR FAN MOTOR MAGNETRON OVEN LAMP MONITOR SWITCH POWER TRANSFORMER HIGH VOLTAGE RECTIFIER COM N O COM CONTROL U...

Page 9: ...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 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 ...

Page 10: ... a certain pad produces no signal at all b When touching a number pad two figures or more are displayed c When touching the pads sometimes a pad produces no signal If the key unit is defective replace the key unit 2 Control Unit The following symptoms indicate a defective control unit Before replacing the control unit perform the Key unit test Procedure K to determine if control unit is faulty 2 1...

Page 11: ...cord and then remove outer case Refer to procedure of REMOVAL OF OVEN FROM WALL and OUTER CASE REMOVAL 2 Open the door and block it open 3 To discharge high voltage capacitor wait for 60 seconds 4 Disconnect the leads to the primary of the power transformer 5 Ensure that these leads remain isolated from other components and oven chassis by using insulation tape 6 After that procedure re connect th...

Page 12: ...ck and repairs 1 Disconnect the power supply cord 2 Open the door and block it open 3 To discharge high voltage capacitor wait for 60 seconds 4 Remove the power unit referring to the procedure of RIGHT PANEL ASSEMBLY AND POWER UNIT REMOVAL 5 Follow the troubleshooting guide given below for repair STEPS OCCURRENCE CAUSE OR CORRECTION 1 Only pattern at a is broken Insert jumper wire J1 and solder 2 ...

Page 13: ...to a conventional surface unit Refer to the INSTALLATION INSTRUCTIONS of the operation manual 4 Exhaust vents are provided on the back of the unit for proper cooling and air flow in the cavity To permit adequate ventilation be sure to install so as not to block these vents There should be some space for air circulation 5 Besuretheexteriorofthecookingcontainerandtheinterioroftheovenaredry Wipeoffan...

Page 14: ...displayed If new sensor dose not operate properly the problem is with the control unit and refer to explanation below CHECKING CONTROL UNIT 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 Disconnect the sensor connector that is mounted to control panel 5 Then connect the dummy resistor circuit see fig to the senso...

Page 15: ...r case is installed Run the oven and check all functions 18 Carry out Water load cooking test again and ensure that the oven works properly R1 R2 22Ω 1 1 2W R3 4 3kΩ 5 1 4W R4 1MΩ 5 1 4W Sensor Dummy Resistor Circuit Plunger NC NO COM COM NO NC R3 R4 R1 R2 1 2 3 F 1 F 2 F 3 To connector F on Control Unit CONNECTOR ...

Page 16: ...low its automatic cooking The touch control section consists of the following units as shown in the touch control panel circuit 1 Key Unit 2 Control Unit The Control unit consists of LSI Unit and Power U nit The principal functions of these units and the signals com municated among them are explained below Key Unit The key unit is composed of a matrix signals generated in the LSI are sent to the k...

Page 17: ...Oven lamp fan motor and turntable motor driving signal To turn on and off shut off relay RY1 The square waveform voltage is delivered to the RY1 driving circuit and RY2 control circuit 17 P51 OUT Used for initial balancing of the bridge circuit absolute humidity sensor 18 P50 OUT Terminal not used 19 P47 OUT Magnetron high voltage circuit driving signal To turn on and off the cook relay RY2 The si...

Page 18: ...ignal Signalappliedtotouch keysection ApulsesignalisinputtoP43 P46terminalwhileone of G5 line keys on key matrix is touched 37 P23 OUT Key strobe signal Signalappliedtotouch keysection ApulsesignalisinputtoP43 P46terminalwhileone of G4 line keys on key matrix is touched 38 P22 OUT Key strobe signal Signalappliedtotouch keysection ApulsesignalisinputtoP43 P46terminalwhileone of G3 line keys on key ...

Page 19: ... SEG 5 67 SEG 5 10 SEG 17 55 SEG17 22 SEG 4 68 SEG 4 9 SEG 16 56 SEG16 21 SEG 3 69 SEG 3 8 SEG 15 57 SEG15 20 SEG 2 70 SEG 2 7 SEG 14 58 SEG14 19 SEG 1 71 SEG 1 6 SEG 13 59 SEG13 18 SEG 0 72 SEG 0 5 SEG 12 60 SEG12 17 73 74 VCC VREF IN Connected to GND 75 AVSS IN Connected to VC 76 COM3 OUT Common data signal Connected to LCD signal COM4 77 COM2 OUT Common data signal Connected to LCD signal COM3 ...

Page 20: ...on in such a way as to change the resistance values in parallel with R53 R57 Changing the resistance values results in that there is the same potential at both F 3 terminal of the absolute humidity sensor and AN0 terminal of the LSI The voltage of AN1 terminal will indicate about 2 5V This initial balancing is set up about 16 seconds after the unit is put in the SensorCookingmode Asthesensorcookin...

Page 21: ... so short that the two can t be separated For those models check and repair all the controls sensor related ones included of the touch control panel while keeping it connected to the oven B On some models the power supply cord between the touch control panel and the oven proper is long enough that they may be separated from each other For those models it is possible to check and repair the control...

Page 22: ...not operate the oven if any of the following conditions exist 1 Door does not close firmly 2 Door hinge support or latch hook is damaged 3 The door gasket or seal is damaged 4 The door is bent or warped 5 There are defective parts in the door interlock system 6 There are defective parts in the microwave generating and transmission assembly 7 There is visible damage to the oven Do not operate the o...

Page 23: ...connectors or wire leads from the power unit 5 Release the oven lamp socket from the magnteron duct by turning the socket counterclockwise 6 Remove the oven lamp from the socket by turning the oven lamp 7 Now the oven lamp is free the terminal hole of the oven lamp socket with the small flat type screw driver 8 Now the oven lamp socket is free 1 Disconnect the power supply cord and remove the oven...

Page 24: ... 9 Reconnect the 11 pin wire harness to the power unit 10 Insert the snap band of the 11 pin wire harness into the hole on the base plate R Note After any service to the door A Make sure that door sensing switch and primary interlock switch are operating properly Refer to chapter Test Procedures B An approved microwave survey meter should be used to assure compliance with proper microwave radiatio...

Page 25: ...e assembly 13 Disconnect the 11 pin wire harness from the LSI unit 14 Releasing the two 2 tabs release the LCD from the LCD holder 15 Releasing the four 4 tabs remove the LCD holder from the LSI unit 16 Now the LSI unit is free NOTE For 11 pin wire harness 1 When the PWB cover is reinstalled route the 11 pin wire harness under the hole of the PWB cover as shown in Figure C 5 2 Before the door pane...

Page 26: ...OCK SWITCH 11 PIN WIRE HARNESS N O N C COM COM MONITOR SWITCH N O N O GRN RED GRN GRN GRN BLK RED N O COM DOOR SENSING SWITCH CN C CN A CN B 1 11 1 1 3 2 1 5 SECONDARY INTERLOCK RELAY POWER UNIT RY1 RY3 RY2 RY4 T1 1 2 RED GRN 1 2 3 4 5 ORG RED BRN CN A TURNTABLE MOTOR FUSE HOLDER WHT BLK GRY BLK RED RED BLK BLK GRY GRY to Base Plate Right COM COM RY2 WHT BLK BLK RED R E D RED RED RED WHT MAGNETRON...

Page 27: ... HOOD LAMP DOOR SENSING SWITCH NOTE IF NOT SPECIFIED 1 4W 5 CN B CN F CN A CN C D1 D4 1N4002 RY1 RY2 RY3 RY4 D20 1SS270A D40 1SS270A C21 10µ 35v SP1 PKM22EPT Q21 KRC243M Q22 KRA101M 1 5 6 4 7 8 a b c d 5 D3 D4 D2 D1 3 8 C1 0 1µ 50v C51 0 1µ 50v C2 1000µ 35v VRS1 10G471K J1 D21 1SS270A D22 1SS270A A 3 A 1 D23 1SS270A A5 D24 1SS270A R4 3 3k R5 680 1w R1 680 1w Q1 2SB1238 C3 10µ 35v ZD1 HZ16 1 R3 2 4...

Page 28: ... 4 7k R7 4 7k R6 4 7k R2 4 7k LD4 CPU UNIT KEY UNIT LIQUID CRYSTAL DISPLAY VL3 COM0 COM1 COM2 COM3 SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG8 SEG9 SEG10 COM0 IC1 COM1 LCD COM2 LCD COM3 LCD COM4 LCD COM1 IC1 COM2 IC1 COM4 COM3 IC1 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SE...

Page 29: ...ure S 4 Printed Wiring Board CN F DIP R53 R52 J2 2 1 R50 RY1 RY2 D22 CN A J1 D3 D4 T1 S 1 1 5 3 5 8 P D1 D2 QKITPB036MRE0 ZD1 C3 E Q1 R3 R5 R1 BFB LOT NO D40 CN B CN C R51 R4 R2 C2 RY4 RY3 D24 D23 4 C1 3 SP1 C50 C51 D20 D21 C21 Q22 Q21 VRS1 B B E E IC 1 R54 1 1 1 11 2 3 8 1 4 5 ...

Page 30: ...ass angle R 1211 1 AG 2 5 2 PGLSPB004MRE0 M Hood lamp glass 1 AH 2 6 PCOVPB099MRT0 M Base cover R 1210 1 AR 2 6 PCOVPB100MRT0 M Base cover R 1211 1 AS RIGHT PANEL PARTS 3 1 DPWBFB104MRU0 M Power unit 1 3 1A QCNCMA017JDZZ M 3 pin connector CN A 1 3 1B QCNCMA275DRE0 J 2 pin connector CN B 1 AB 3 1C QCNCMA335DRE0 J 11 pin connector CN C 1 AC 3 1D QCNCMA237DRE0 J 3 pin connector CN F 1 AD C1 RC KZA087...

Page 31: ...210 1 5 CDORFB296MRK0 M Door assembly R 1211 1 5 1 FDORFB072MRT0 M Door panel assembly 1 AW 5 2 FCOV B200MRK0 M Door frame assembly R 1210 1 5 2 FCOV B201MRK0 M Door frame assembly R 1211 1 5 2 1 LSTPPB023MRF0 M Latch head 1 AC 5 2 2 MSPRTA046WRE0 M Latch spring 1 AB 5 2 3 FUNTKB330MRE0 M Key unit R 1210 1 5 2 3 FUNTKB331MRE0 M Key unit R 1211 1 5 2 4 FW VZB193MRE0 M 11 pin wire harness 1 5 2 5 PC...

Page 32: ...Monitor caution label 1 AA 6 10 TCAUAB005MRR0 M Revised DHHS GRD C label 1 AB 6 11 QW VZB011MRE0 M Sensor ground wire 1 SCREWS NUTS AND WASHERS 7 1 XOPSD40P12000 M Screw 4mm x 12mm 7 AA 7 2 XOTSF40P12000 M Screw 4mm x 12mm R 1210 6 AA 7 2 XOTSE40P12000 M Screw 4mm x 12mm R 1211 6 AA 7 3 XOTSD40P12000 M Screw 4mm x 12mm 7 AA 7 4 XHTSD40P08RV0 M Screw 4mm x 8mm 2 AA 7 5 LX CZA038WRE0 M Special screw...

Page 33: ... A 6 10 7 2 4 13 4 15 4 8 7 8 2 1 2 6 1 13 7 2 7 2 1 14 7 2 7 3 7 2 1 4 1 11 7 3 2 5 1 10 4 21 4 13 7 7 4 16 4 16 7 5 7 9 7 1 4 20 4 5 1 7 4 23 4 24 4 22 7 3 4 14 7 3 7 1 5 2 4 2 2 6 8 4 9 7 4 1 8 1 14 1 13 4 6 4 3 4 7 4 2 7 3 4 11 7 8 7 1 7 8 6 11 7 3 2 3 7 10 1 15 6 11 4 1 7 8 7 8 1 5 4 12 1 12 7 1 7 1 1 3 1 6 1 2 1 1 4 4 7 7 7 1 2 5 1 2 5 2 1 11 B B A ...

Page 34: ...D E F G H RIGHT PANEL PARTS MISCELLANEOUS DOOR PARTS 6 6 6 7 6 5 6 11 6 1 6 1 1 6 1 2 6 1 3 6 1 7 6 2 6 1 5 6 1 6 6 1 4 5 2 2 5 2 3 5 2 1 5 2 5 5 2 13 5 2 7 5 2 9 5 2 8 5 2 10 5 2 11 5 2 5 3 5 4 5 1 5 2 6 5 2 4 5 4 18 4 19 5 5 5 5 7 2 3 3 3 4 3 5 3 2 3 1 3 6 5 2 12 ...

Page 35: ...P PAD SPADBB043MRE0 BOTTOM PAD SPADBB044MRE0 SSAKAB004MRE0 SPAKCB324MRR3 R 1210 SPAKCB324MRR4 R 1211 PACKING CASE ACCESSORY PACK WRAP COVER SSAKH0103MRE0 Non replaceable items DOOR PROTECTOR SPADP0221MRE0 INSTALL MATERIAL ASSEMBLY 6 1 6 3 OPERATION MANUAL 6 4 TOP WALL TEMPLATE ...

Page 36: ...002 BY SHARP CORPORATION ALL RIGHTS RESERVED No part of this publication may be reproduced stored in retrieval systems or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without prior written permis sion of the publisher ...

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