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9

R - 1 8 7 0
R - 1 8 7 1

PROCEDURE

LETTER

COMPONENT TEST

G12

CUSTOM

HELP

KITCHEN

TIMER

POWER

LEVEL

KEEP

WARM

TURNTABLE

ON / OFF

CONVEC

BROIL

FAN

LIGHT

PREHEAT

CLOCK

SENSOR

REHEAT

SLOW
COOK

LOW MIX

BAKE

1

100 F

2

150

 

F

3

275  

 

F

4

300

 

F

5

325

 

F

6

350

 

F

7

375

 

F

8

400

 

F

9

425

 

F

0

450

 

F

HIGH MIX

ROAST

STOP

CLEAR

START

TOUCH ON

SENSOR

COOK

MINUTE

PLUS

COMPU

DEFROST

COMPU

ROAST

COMPU

BAKE

COMPU

BROIL

POPCORN

G11

G10

G 9

G 8

G 1

G 2

G 3

G 4

G 5

G 6

G 7

Note: When defective components,  the Control Unit or Key Unit are replaced, the defective part or parts

must be properly packed for return in the shipping carton, with its cushion material, in which the
new replacement part was shipped to you.

If the display fails to clear when the STOP/CLEAR pad is depressed, first verify the flat ribbon 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 (stop switch) is good,
disconnect the flat ribbon that connects the key unit to the control unit and make sure the door sensing
switch is closed (either close the door or short the stop switch connecter). Use the key unit matrix
indicated on the control panel schematic and place a jumper wire between the pins that correspond to
the STOP/CLEAR pad making momentary contact. If the control unit responds by clearing with a beep,
the key unit is faulty and must be replaced.
If the control unit does not respond, it is
faulty and must be replaced. If a specific
pad does not respond, the above method
may be used ( after clearing the control unit)
to determine if the control unit or key pad is
at fault.

R

KEY UNIT TEST

Summary of Contents for Carousel R-1870

Page 1: ...t in a severe possibly fatal electrical shock High Voltage Capacitor High Voltage Power Transformer Magnetron High Voltage Rectifier Assembly High Voltage Harness etc TABLE OF CONTENTS Page PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY INSIDE FRONT COVER BEFORESERVICING INSIDE FRONT COVER WARNING TO SERVICE PERSONNEL 1 MICROWAVEMEAS...

Page 2: ...eneration 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 th...

Page 3: ...ge 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 power supply cord and then remove outer case 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Re...

Page 4: ...the center 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 ...

Page 5: ...and hinges are not defective C The door packing is not damaged D The door is not deformed or warped E There is no other visible damage with the oven Servicing and repair work must be carried out only by trained service personnel DANGER Certain initial parts are intentionally not grounded and present a risk of electrical shock only during servicing Service person nel Do not contact the following pa...

Page 6: ... P 20 approx 20 of Full Power P 10 approx 10 of Full Powe P 0 No power throughout the cooking time CUSTOM HELP pad SENSOR COOK pad COMPU BROIL pad COMPU ROAST pad COMPU BAKE pad SENSOR REHEAT pad MINUTE PLUS pad POPCORN pad COMPU DEFROST pad CONVECTION pad REHEAT pad LOW MIX BAKE pad HIGH MIX ROAST pad BROIL pad SLOW COOK pad KITCHEN TIMER pad Number and temperature selection pads CLOCK pad KEEP W...

Page 7: ...ch circuit using a grounded receptacle The receptacle should be located inside the cabinet directly above the Microwave Oven Hood system mounting location OVEN DIAGRAM 1 Oven door with see through window 2 Door hinges 3 Stirrer cover 4 Turntable motor shaft 5 Oven lamp It will light when oven is operating or door is open 6 Door latches The oven will not operate unless the door is securely closed 7...

Page 8: ...its to the stirrer motor the cooling fan motor the turntable motor and the high voltage components are de energized and the digital read outdisplaysthetimestillremaininginthecookcycle when the door was opened 7 Themonitorswitchiselectricallymonitoringtheoperation of the primary and secondary switch and secondary interlock relay and is mechanically associated with the door so that it will function ...

Page 9: ...TOR SECONDARY INTERLOCK SWITCH RED YLW GRY WHT WHT 120 V AC 60 Hz HOOD LAMP HL HL DM RY6 RY5 RY4 RY7 RY1 RY3 RY2 PRIMARY INTERLOCK RELAY FM CM OL TTM STM BRN HOOD FAN THERMAL CUT OUT HOOD CAPACITOR RY9 RY10 RY8 FUSE 20A BRN BLK RESISTOR NOISE MAGNETRON TEMPERATURE FUSE RED PNK BLK GRY GRY GRY BRN BRN PNK GRY DAMPER MOTOR FAN MOTOR TURNTABLE MOTOR CONVECTION MOTOR GRY BLU GRY GRY GRN WHT WHT WHT WH...

Page 10: ... C5 C7 A1 A3 C1 A5 B5 B3 B1 B7 E1 E5 E6 E3 E4 E2 F1 F2 F3 DOOR SENSING SWITCH DAMPER SWITCH THERMISTOR SECONDARY INTERLOCK SWITCH RED YLW GRY WHT WHT 120 V AC 60 Hz HOOD LAMP HL HL DM RY6 RY5 RY4 RY7 RY1 RY3 RY2 PRIMARY INTERLOCK RELAY FM CM OL TTM STM BRN HOOD FAN THERMAL CUT OUT HOOD CAPACITOR RY9 RY10 RY8 FUSE 20A BRN BLK RESISTOR NOISE MAGNETRON TEMPERATURE FUSE RED PNK BLK GRY GRY GRY BRN BRN...

Page 11: ... depressed first verify the flat ribbon 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 stop switch is good disconnect the flat ribbon that connects the key unit to the control unit and make sure the door sensing switch is closed either close the door ...

Page 12: ...SOCKET to oven cavity front flange CN E CN F 1 2 YLW GRY CN A 5 4 RED GRY WHT WHT BLK BLK SECONDARY INTERLOCK SWITCH N O N C COM COM MONITOR SWITCH MONITOR FUSE AND FUSE HOLDER N O N O COM COM GRN GRN PNK N O COM DOOR SENSING SWITCH CN C CN E CN F CN A PRIMARY INTERLOCK RELAY RY3 RY1 RY9 RY7 CN F T1 1 2 RED WHT 3 AH SENSOR HOOD FAN MOTOR STIRRER MOTOR GRY BLK BLK BLK BLK 1 2 GRY GRY BRN BRN GRY PN...

Page 13: ...L UNIT 1 VREF AN7 AN6 AN5 AN4 AN3 AN2 AN1 AN0 P55 P30 P31 P32 P33 P34 P35 P36 P37 P00 P01 P02 P03 P04 P05 P06 P07 P10 P11 P12 P13 P14 P15 P16 P17 P20 P21 P22 P23 P24 P25 P26 P27 P54 P53 P52 P51 P50 P47 P46 P45 P44 P43 P42 P40 P71 P70 XIN XOUT VSS RST INT1 VCC VEE AVSS 12 A A B C B C C4 10 35v C20 10 35v R30 15k R50 15k R63 220F R64 3 6kF R31 4 7k R62 36kF R51 4 7k IC1 IZA719DR C21 0 1 50v ZD3 HZ5C...

Page 14: ...R 1871 1 BC 2 6 TMAPCB056MRR0 M Schematic diagram 1 AB 2 7 FANGKB009MRY0 M Hood lamp glass assembly R 1870 1 AN 2 7 FANGKB010MRY0 M Hood lamp glass assembly R 1871 1 AM 2 7 1 LANGQB033MRP0 M Hood lamp glass angle R 1870 1 AG 2 7 1 LANGQB020MRP0 M Hood lamp glass angle R 1871 1 AG 2 7 2 PGLSPB004MRE0 M Hood lamp glass 1 AH 2 8 PCOVPB030MRT0A M Base cover R 1870 1 AX 2 8 PCOVPB031MRT0 M Base cover R...

Page 15: ...tor 100k ohm 1 4W 4 AA R100 VRS B13AA331J J Resistor 330 ohm 1W 1 AA RY1 3 RRLY B002MRE0 M Relay DU24D1 1P M 3 AH RY4 9 RRLY A075DRE0 J Relay OJE SS 124LM 6 AG RY10 RRLY B001MRE0 M Relay VE 24HSF K 1 AM SP40 RALM A014DRE0 J Buzzer PKM22EPT 1 AG T1 RTRNPB004MRE0 M Transformer 1 AN VRS1 RH VZA032DRE0 J Varistor 10G471K 1 AE ZD1 VHEHZ6A3 1 J Zener diode HZ6A 3 1 AC ZD2 VHEHZ161 1 J Zener diode HZ16 1...

Page 16: ...n B 1 AA 4 46 PCUSUB020MRP0 M Cushion 1 AA 4 47 PCUSUB024MRP0 M Cushion 1 AD 4 48 PCUSGB035MRP0 M Cushion 2 AA 4 49 PCUSUB046MRP0 M Cushion 2 AA 4 50 PCUSUB047MRP0 M Cushion 1 AA 4 51 PFPF B004MRE0 M Heat protect rear 1 AE 4 52 PFPF B005MRE0 M Heat protect bottom 1 AE DOORPARTS 5 CDORFB285MRK0 M Door assembly complete R 1870 1 BL 5 CDORFB286MRK0 M Door assembly complete R 1871 1 BN 5 1 DDORFB074MR...

Page 17: ...M Screw 3mm x 8mm 2 AA 7 6 XBTWW40P06000 M Screw 4mm x 6mm 2 AA 7 7 XOTSD40P12000 M Screw 4mm x 12mm 19 AA 7 8 XOTSF40P10000 M Screw 4mm x 10mm R 1870 1 AA 7 8 XOTSC40P10000 M Screw 4mm x 10mm R 1871 1 AA 7 9 LX BZ0208WRE0 M Screw 4mm x 8mm 2 AA 7 10 LX BZB011MRE0 M Unit mounting screw 2 AH 7 11 LX CZA038WRE0 M Special screw 4 AA 7 12 XCBWW30P08000 M Screw 3mm x 6mm 5 AA 7 13 LX CZ0052WRE0 M Speci...

Page 18: ... 9 1 20 2 7 2 3 1 14 2 4 1 14 4 29 4 31 6 14 1 22 4 25 1 11 1 11 4 33 4 42 4 12 7 25 4 8 4 11 6 12 7 18 4 13 4 18 4 16 7 6 7 26 4 12 4 7 1 4 7 22 7 22 1 12 1 9 1 2 4 4 4 30 4 47 4 28 4 27 4 46 2 8 1 20 4 32 7 19 7 12 7 12 1 20 1 8 1 11 1 10 7 5 4 26 7 16 2 1 2 1 7 10 7 10 4 41 1 5 7 20 7 1 1 19 7 9 4 20 4 22 1 1 4 40 4 14 7 13 1 23 4 5 4 6 2 2 4 3 4 2 7 25 7 8 2 7 2 2 7 1 7 2 4 19 4 37 1 15 1 3 4 ...

Page 19: ... B C D E F G H A B C D E F G H CONTROL PANEL PARTS MISCELLANEOUS DOOR PARTS 5 2 4 34 5 3 5 8 5 5 5 4 5 6 5 1 5 9 5 5 9 5 7 3 2 3 3 3 4 7 7 3 4 3 1 3 2 2 3 2 3 3 2 5 3 2 1 3 2 4 3 2 6 6 6 6 8 6 9 6 10 6 11 6 1 6 1 1 6 1 2 6 1 3 6 1 7 6 1 5 6 1 6 6 1 4 ...

Page 20: ... PAD BOTTOM PAD PACKING CASE ACCESSORY PACK WRAP COVER Non replaceable items DOOR PROTECTOR GREASE FILTER x 2 INSTALL MATERIAL ASSEMBLY 6 1 6 2 6 3 OPERATION MANUAL WALL TEMPLATE INSTALLATION INSTRUCTION 6 4 TOP TEMPLATE 6 5 EXHAUST DAMPER ASSEMBLY 4 1 6 9 6 10 6 7 COOK BOOK ...

Page 21: ...19 R 1 8 7 0 R 1 8 7 1 Notes ...

Page 22: ...20 R 1 8 7 0 R 1 8 7 1 Notes ...

Page 23: ...21 R 1 8 7 0 R 1 8 7 1 Notes ...

Page 24: ...T 2001 BY SHARP CORPORATION ALL RIGHTS RESERVED Nopartofthispublicationmaybereproduced stored in retrieval systems or transmitted in any form or by any means electronic me chanical photocopying recording or other wise without prior written permission of the publisher ...

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