Sharp Carousel R-1500 Service Manual Download Page 35

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R-1500
R-1501
R-1505
R-1506

Figure S-1. Pictorial Diagram

HIGH VOLTAGE

RECTIFIER

HIGH VOLTAGE

CAPACITOR

HIGH VOLTAGE

WIRE A

HIGH VOLTAGE COMPONENTS

CONTROL UNIT

POWER

TRANSFORMER

Power Supply

cord 120V 60Hz

WHT

GRN

BLK

WHT

BLU

GRN

BLK

CAVITY

THERMAL

CUT-OUT

MAGNETRON

TEMPERATURE

FUSE

BLK

RED

BLK

FAN

MOTOR

WHT

PNK

BLU

WHT

ORG

PPL

BRN

WHT

Blue

Marking

Blue Marking

OVEN LAMP &

SOCKET

HOOD LAMP &

SOCKET

HOOD LAMP &

SOCKET

CN-E

GRY

WHT

RED

PRIMARY

INTERLOCK

SWITCH

N.O.

N.C.

COM.

MONITOR

SWITCH

FUSE &

HOLDER

N.O.

GRN

RED

GRN

N.O.

COM.

DOOR SENSING SWITCH

CN-B

CN-C

CN-G

CN-C

CN-A

CN-E

SECONDARY INTERLOCK RELAY

RY1

RY3

RY2:

RY4

C100

HOOD FAN MOTOR

WHT

RED

YLW

BLU

BLK

WHT

RED

YLW

BLU

BLK

RED

GRN

YLW

RED

PPL

CN-A

TURNTABLE

MOTOR

WHT

BRN

HOOD FAN

THERMAL

CUT-OUT

GRY

BRN

RED

ORG

BLK

GRY

to Base Plate Right

BLK

PNK or

ORG

WHT

BRN

CN-B

RY5

RY6

COM.

RY2:

WHT

BLK

ORG

RED

WHT

BLK

MAGNETRON

RED

WHT

BLU

WHT

Summary of Contents for Carousel R-1500

Page 1: ...DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY INSIDE FRONT COVER BEFORE SERVICING INSIDE FRONT COVER WARNING TO SERVICE PERSONNEL 1 MICROWAVE MEASUREMENT PROCEDURE 2 FOREWORD AND WARNING 3 PRODUCT SPECIFICATIONS 4 GENERAL INFORMATION 4 OPERATION 7 TROUBLESHOOTING GUIDE 11 TEST PROCEDURE 13 TOUCH CONTROL PANEL ASSEMBLY 21 COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE 25...

Page 2: ...ation 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 Mi...

Page 3: ...ge capacitor 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 ...

Page 4: ...enter of the oven cavity 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...

Page 5: ...ot 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 internal parts are intentionally not grounded and present a risk of electrical shock only during servicing Service personnel Do not contact the following parts while t...

Page 6: ...ower P 20 approx 20 of Full Power P 10 approx 10 of Full Power P 0 No power throughout the cooking time KEEP WARM pad POPCORN pad HOT WATER pad REHEAT CENTER pads COOK CENTER pads DEFROST CENTER pads Number selection pads POWER LEVEL pad TIMER CLOCK pad LIGHT HI LO button FAN HI LO button STOP CLEAR button START MINUTE PLUS button Oven Cavity Light 20W x 1 Incandescent light bulb Safety Standard U...

Page 7: ...en door with see through window 2 Door hinges 3 Waveguide cover 4 Turntable motor shaft 5 Oven lamp Itwilllightwhenovenisoperatingordoorisopen 6 Door latches The oven will not operate unless the door is securely closed 7 One touch door open button 8 Auto Touch control panel 9 Time display Digital display 99 minutes 99 seconds 10 Ventilation openings 11 Light Cover 12 Grease filters 13 Removable tu...

Page 8: ... LIGHT HI LO FAN HI LO STOP CLEAR START MINUTE PLUS REHEAT CENTER DEFROST CENTER COOK CENTER 1 Casserole 2 Soup 3 Pizza 4 Beverage 5 Dinner Plate 6 Fresh Rolls Muffins 7 Frozen Rolls Muffins 8 Canned Vegetables 2 5 8 3 6 9 1 4 7 0 NOTE Some one touch cooking features such as MINUTE PLUS are disabled after three minutes when the oven is not used These features are automatically enabled when the doo...

Page 9: ...le motor and the high voltage components are de energized the oven lamp remains on and the digital read out displays the time still remaining in the cook cycle when the door was opened 7 Themonitorswitchiselectricallymonitoringtheoperation of the primary interlock switch and secondary interlock relay RY2 andismechanicallyassociatedwiththedoor so that it will function in the following sequence 1 Wh...

Page 10: ...same as VERTICAL VENTING except that the final air discharge is directed horizontally out from the top rear of the oven into the customer s vent system AIR FLOW 3 RE CIRCULATION INSIDE VENTING The air handing is the same as VERTICAL VENTING except that the final air discharge is directed horizontally through the upper front of the oven into the kitchen IN this case the accessory charcoal filter RK...

Page 11: ...IT GND GRN HOOD MOTOR A5 B5 B7 B9 Low High A1 A3 B1 B3 N O E1 E2 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 HOOD FAN THERMAL CUT OUT HOOD CAPACITOR RY4 RY6 RY5 RY3 N C CAVITY THERMAL CUT OUT HL MAGNETRON TEMPERATURE FUSE FUSE 20A TURNTABLE MOTOR FAN MOTOR MAGNETRON OVEN LAMP MONITOR SWITCH BLK WHT POWER TRANS...

Page 12: ...ng Turntable will turn in either direction The turntable motor can be turned off by touching TURNTABLE ON OFF pad COOLING FAN MOTOR The cooling fan motor drives a blade which draws external cool air This cool air is directed through the air vanes surroundingthemagnetronandcoolsthemagnetron Thisair DOOR OPEN MECHANISM The door is opened by pushing the open button on the control panel refer to the F...

Page 13: ...ormer 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 power supply cord and then remove outer case 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Reconnect the leads to the primary of the power transformer 5 Reinstall ...

Page 14: ...for this function Oven lamp does not light in cook cycle But it does light when door is opened Fan motor does not operate Oven lamp and turntable motor operate Turntable motor does not operate Oven lamp lights and fan motor operate Oven does not go into cook cycle when START button is touched Oven seems to be operating but little or no heat is produced in oven load Food incompletely cooked or not ...

Page 15: ...ntil the temperature stabilizes Record the temperature of the water 2 Place the cup of water in the oven Operate oven at POWER 10 HIGH selecting more than 60 seconds cook time Allow the water to heat for 60 seconds measuring with a stop watch second hand of a watch or the digital read out countdown 3 Remove the cup from the oven and again measure the temperature making sure to stir the thermometer...

Page 16: ...he oven cavity especially the cooling fan and air guide 5 Reconnect all leads removed from components during testing 6 Reinstall the outer case cabinet 7 Reconnect the power supply cord after the outer case is installed 8 Run the oven and check all functions MAGNETRON TEMPERATURE FUSE TEST 1 Disconnect the power supply cord and then remove outer case 2 Open the door and block it open 3 Discharge h...

Page 17: ...ing 6 Reinstall the outer case cabinet 7 Reconnect the power supply cord after the outer case is installed 8 Run the oven and check all functions F PRIMARY INTERLOCK SWITCH TEST H MONITOR SWITCH TEST G SECONDARY INTERLOCK SYSTEM TEST DOOR SENSING SWITCH 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 Isolatetheswi...

Page 18: ...sting the monitor switch reconnect the wire lead to the monitor switch COM terminal and check the continuity of the monitor circuit 5 Reconnectallleadsremovedfrom components during testing 6 Reinstall the outer case cabinet 7 Reconnect the power supply cord after the outer case is installed 8 Run the oven and check all functions J HOOD THERMAL CUT OUT TEST 1 Disconnect the power supply cord and th...

Page 19: ...ge high voltage capacitor wait for 60 seconds 4 Remove two 2 screws holding the hood intake duct R to the ovencavity top plate and the base plate R And remove the hood intake duct R 5 Disconnect the leads to the primary of the power transformer 6 Ensure that these leads remain isolated from other components and oven chassis by using insulation tape 1 Key Unit NOTE 1 Check key unit ribbon connectio...

Page 20: ...discharge high voltage capacitor wait for 60 seconds 4 Remove the control panel assembly 5 If the display fails to clear when the STOP CLEAR pad is depressed first verify the flat ribbon cable is making good contact verify that the door sensing switch stop switch operates properly that is the contacts are closed when the door is closed and open when the door is open If the door sensing switch stop...

Page 21: ...e RELAY SYMBOL OPERATIONAL VOLTAGE CONNECTED COMPONENTS RY1 Approx 26 6V D C Oven lamp Fan motor Turntable motor RY2 COOK Approx 26 0V D C Power transformer RY3 Approx 26 6V D C Hood motor RY4 Approx 26 6V D C Hood motor RY5 Approx 26 6V D C Hood lamp RY6 Approx 26 6V D C Hood lamp 9 Disconnect the power supply cord 10 Open the door and block it open 11 To discharge high voltage capacitor wait for...

Page 22: ...r above check and repairs are finished 1 Disconnect the power supply cord and then remove outer case Refer to procedure of HOOD EXHAUST LOUVER REMOVAL 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 Remove the hood intake duct R 5 Disconnect the leads to the primary of the power transformer 6 Ensure that...

Page 23: ...etionsound 6 Door Sensing Switch A switch to inform the LSI if the door is open or closed 7 Relay Circuit To drive the magnetron fan motor turntable motor hood motor and light the oven lamp and hood lamp 8 Indicator Circuit This circuit consists of 22 segments and 3 common electrodes using a Light Crystal Display 9 Back Light Circuit A circuit to drive the back light Light emitting diodes LD1 LD4 ...

Page 24: ...er source frequency This is the basic timing for time processing of LSI 25 P41 OUT Terminal not used 26 P40 IN Connected to GND through the pull down resistor R100 27 RESET IN Auto clear terminal Signal is input to reset the LSI to the initial state when power is applied 28 29 P71 P70 OUT Terminal not used 30 XIN IN Internal clock oscillation frequency input setting Theinternalclockfrequencyissetb...

Page 25: ... During Hood motor low 44 P14 OUT Hood motor driving signal To turn on and off relay RY4 L level During Hood motor ON H level During Hood motor OFF 45 47 P13 P11 OUT Terminal not used 48 50 SEG24 SEG22 OUT Terminal not used 51 72 SEG21 SEG0 OUT Segment data signal Connected to LCD The relation between signals are as follows LSI signal Pin No LCD Pin No LSI signal Pin No LCD Pin No SEG 21 51 SEG21 ...

Page 26: ...the oven itself is 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 ...

Page 27: ...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 oven 1 Without the RF gasket ...

Page 28: ...s free CAUTION 1 DISCONNECT OVEN FROM POWER SUPPLY BEFORE REMOVING OUTER CASE 2 DISCHARGE THE HIGH VOLTAGE CAPACITOR BEFORE TOUCHING ANY OVEN COMPONENTS OR WIRING POWER TRANSFORMER REMOVAL 1 Disconnect the power supply cord remove the oven from wall and remove outer case Refer to procedure of REMOVAL OF OVEN FROM WALL AND OUTER CASE REMOVAL And proceed as follows 2 Open the door and block it open ...

Page 29: ... the oven cavity top plate the oven cavity front flange and the fan duct And remove the hood intake duct R 5 Disconnect the high voltage wire lead with high voltage rectifier from the magnetron 6 Disconnect filament lead of the transformer from high voltage capacitor 7 Disconnect high voltage wire A from capacitor HIGH VOLTAGE RECTIFIER AND HIGH VOLTAGE CAPACITOR REMOVAL 8 Remove the fan duct asse...

Page 30: ...tage capacitor wait for 60 seconds 4 Remove the fan duct assembly from the oven cavity referring to the procedure of COOLING FAN MOTOR REMOVAL 5 Disconnect the wire leads from the temperature fuse Magnetron 6 Remove the one 1 screw holding the temperature fuse Magnetron to the fan duct 7 Now the temperature fuse Magnetron is free COOLING FAN MOTOR REMOVAL 15 Remove the fan blade from the shaft of ...

Page 31: ...p is free OVEN LAMP AND LAMP SOCKET REMOVAL POSITIVE LOCK CONNECTOR NO CASE TYPE REMOVAL 1 Disconnect the power supply cord and remove the oven from wall and remove outer case Refer to procedure of RemovalofOvenfromWall and OutercaseRemoval 2 Open the door and block it open 3 To discharge the high voltage capacitor wait for 60 seconds 4 Push the lever of positive lock connector 5 Pull down on the ...

Page 32: ... SENSING SWITCH PRIMARY INTERLOCK SWITCH AND MONITOR SWITCH REMOVAL 9 Remove each switch from the latch hook by pushing the one 1 stopper tab holding each switch 10 Now each switch is free Re install 1 Re install each switch in its place The primary interlock switch is in the lower position door sensing switch is in the upper position and the monitor switch is in the middle position 2 Re connect w...

Page 33: ...se the contacts of interlock switches 4 Make sure upper and lower oven hinges are inserted into the upper an lower door hinge pins 5 Make sure the door is parallel with oven face lines left and upper side lines and door latch heads pass through latch holes correctly 6 Re install the door stopper to the door assembly 7 Re install the hood exhaust louver to the oven cavity front face plate with the ...

Page 34: ...choke cover and door stopper and between the choke cover and the door frame as shown Figure C 3 to free engaging parts 9 Pry the choke cover by inserting a putty knife in order shown in Figure C 3 10 Now choke cover is free from door panel and door frame NOTE When carrying out any repair to the door do not bend or warp the slit choke tabs on the door panel assembly to prevent microwave leakage DOO...

Page 35: ...AMP SOCKET HOOD LAMP SOCKET HOOD LAMP SOCKET CN E GRY WHT WHT WHT WHT RED PRIMARY INTERLOCK SWITCH N O N C COM COM MONITOR SWITCH FUSE HOLDER N O N O GRN RED GRN GRN GRN N O COM DOOR SENSING SWITCH CN B CN C CN G CN C CN A CN E 1 9 1 1 2 1 14 5 SECONDARY INTERLOCK RELAY RY1 RY3 RY2 RY4 C100 T1 HOOD FAN MOTOR 1 2 3 4 5 6 WHT RED YLW BLU BLK WHT RED YLW BLU BLK 1 2 RED GRN 1 2 3 4 5 YLW RED PPL CN A...

Page 36: ...6 1SS270A C1 0 1µ 50v C2 1000µ 35v 3 8 D3 D1 D2 R1 750 1w SP1 PKM22EPT Q21 KRC243M C21 10µ 35v D1 D4 1N4002 C100 7µ 230v R2 750 1w AC N OVEN LAMP TURNTABLE MOTOR FAN MOTOR OVEN LAMP TURNTABLE MOTOR FAN MOTOR CN C 14pin WIRE HARNESS BUZZER MICRO GND VC VA INT HOOD THERMAL CUT OUT AC H MICRO HIGH LOW CN B CN A CN E HOOD MOTOR HOOD MOTOR COM HOOD MOTOR H L HOOD MOTOR COM HOOD LAMP HOOD LAMP Q22 DOOR ...

Page 37: ...IFIED 1 16W 5 VA Q2 KTA1661 Q23 DTA143EAK Q24 DTA143EAK Q25 DTA143EAK Q26 DTA143EAK Q30 DTA143EAK R41 15k CF1 CSTS4 00MG03 GND SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG8 VL2 VL2 P41 P40 RESET P71 P70 XIN XOUT VSS P27 P26 P25 P24 P23 P22 P21 P20 COM0 COM0 COM1 COM2 NC SEG0 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 COM1 COM2 COM3...

Page 38: ... Figure S 4 Printed Wiring Board 0 F C S M 2 7 A 9 4 V 0 M B M R 3 5 0 R BFB DIP LOT NO QKITPB035MRE0 RY1 VRS1 R30 T1 S 8 5 1 3 P C100 D26 D24 D23 D22 C21 CN E CN C D21 D40 D20 2 1 R2 Q21 Q1 B B ZD1 E E R1 R3 C2 D1 D3 D4 D2 D25 1 1 9 5 RY5 CN B CN A C1 C3 1 1 2 14 SP1 J1 RY2 RY3 RY4 RY6 ...

Page 39: ...ABUB105MRP0 M Outer case cabinet R 1501 1 AZ 2 5 GCABUB103MRP0 M Outer case cabinet R 1505 1 AZ 2 5 GCABUB105MRP0 M Outer case cabinet R 1506 1 AZ 2 6 TMAPCB067MRR0 M Schematic diagram 1 AB 2 7 FANGKB009MRY0 M Hood lamp glass assembly R 1500 1 AN 2 7 FANGKB010MRY0 M Hood lamp glass assembly R 1501 1 AM 2 7 FANGKB009MRY0 M Hood lamp glass assembly R 1505 1 AN 2 7 FANGKB010MRY0 M Hood lamp glass ass...

Page 40: ...able part 1 4 8 PPACGB014MRF0 M Turntable motor packing 1 AA 4 9 PHOK B018MRF0 M Latch hook 1 AF 4 10 FANGTB005MRY0 M Unit mounting plate assembly 1 AS 4 11 NFANPB006MRE0 M Fan blade 1 AC 4 12 LBSHC0037WRE0 M Cord bushing 1 AB 4 13 MLEVFB007MRP0 M Mounting lever 2 AC 4 14 PDUC B112MRP0 M Hood intake duct R 1 AG 4 15 PCOVPB085MRP0 M Waveguide cover 1 AH 4 16 MSPRTA046WRE0 M Latch spring 2 AB 4 17 L...

Page 41: ...B 6 11 FW VZB188MRE0 M Low voltage harness 1 AT 6 12 PFIL B006MRE0 M Charcoal filter 1 AE 6 13 PFIL B002MRE0 M Grease filter 2 AF 6 14 FFTA B003MRK0 M Exhaust damper assembly 1 AH SCREWS NUTS AND WASHERS 7 1 LX CZB004MRE0 M Special screw 3 AA 7 2 XOTSE40P12000 M Screw 4mm x 12mm 4 AA 7 3 XOTSD40P12000 M Screw 4mm x 12mm 18 AA 7 4 XBPSD40P08000 M Screw 4mm x 8mm 2 AA 7 5 LX CZA038WRE0 M Special scr...

Page 42: ...7 2 2 6 12 6 8 7 1 1 14 7 5 7 5 7 5 7 5 7 3 6 10 7 3 4 13 2 4 4 7 4 15 4 8 7 10 6 13 2 8 1 13 7 2 1 16 7 3 7 2 1 4 1 11 2 7 6 13 1 10 4 21 7 8 1 11 1 9 4 13 4 14 7 7 4 16 4 16 4 20 4 5 1 7 4 22 1 6 7 3 7 3 7 3 7 3 2 3 4 9 7 4 1 8 1 16 1 13 4 6 4 3 4 2 4 11 7 8 7 3 7 3 7 3 2 5 4 19 6 14 2 1 7 3 7 3 4 12 1 12 7 3 1 3 1 15 1 2 1 1 4 4 7 9 2 7 1 2 7 2 1 5 ...

Page 43: ... 3 A B C D E F G H A B C D E F G H 6 6 6 7 6 11 6 1 6 1 1 6 1 2 6 1 3 6 1 7 6 1 8 6 1 5 6 1 6 6 1 4 5 2 3 3 2 3 3 2 1 3 2 2 5 2 3 5 2 2 5 2 1 5 2 5 3 5 4 5 1 5 4 1 5 5 5 5 3 3 3 2 4 3 2 7 3 3 5 3 5 3 1 3 4 3 5 CONTROL PANEL PARTS MISCELLANEOUS DOOR PARTS ...

Page 44: ...TS 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 01 SHARP CORP 8S1 730E Printed in U S A ...

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