Sharp R-308CW Service Manual

R-305CWTABLE OF CONTENTSPagePRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TOAVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY ...

8R-305CW645123645123ABCDEFGHABCDEFGHFigure S-3. CPU Unit Circuit+–+–C-3G 9G 85 4 3 2 1 0 9 8 7 6 G 7 G 6 G 5 G 4 G 3 G 2 G 1G10G11G12G13G14C-5C-9C-4C-

9R-305CW645123645123ABCDEFGHABCDEFGHFigure S-4. Printed Wiring Board of Power UnitCN - BCN - COLTTM FMSP1RY1RY3 RY2 MICROBROWNERVHACOMDUOMOMDUDU174F3

10R-305CW***∆**PARTS LISTNote: The parts marked “∆” may cause undue microwave exposure.The parts marked “*” are used in voltage more than 250V.REF. NO

11R-305CWHOW TO ORDER REPLACEMENT PARTSTo have your order filled promptly and correctly, please furnish the following information.1. MODEL NUMBER 2. R

12R-305CW645123645123ABCDEFGHABCDEFGHOVEN AND CABINET PARTS7-57-87-57-81-106-72-14-134-104-171-114-144-21-127-17-51-71-81-67-12-32-37-67-67-67-61-94-6

13R-305CW645123645123ABCDEFGHABCDEFGHCONTROL PANEL PARTSMISCELLANEOUSActual wire harness may be different from illustration.6-46-3(CAPACITOR)6-53-3-15

14R-305CW'99 SHARP CORP. (1S2.530E) Printed in U.S.ACOPYRIGHT © 1999 BY SHARP CORPORATIONALL RIGHTS RESERVED.No part of this publication may be r

R-305CWPRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLEEXPOSURE TO EXCESSIVE MICROWAVEENERGY(a) Do not operate or allow the ove

1R-305CWWARNING TO SERVICE PERSONNELMicrowave ovens contain circuitry capable of pro-ducing very high voltage and current, contact withfollowing parts

2R-305CWSHARP ELECTRONICS CORPORATIONSHARP PLAZA, MAHWAH,NEW JERSEY 07430-2135SERVICE MANUALMICROWAVE OVENR-305CWFOREWORDThis Manual has been prepared

3R-305CWITEM DESCRIPTIONPower Requirements 120 Volts / 12.5 Amperes60 HertzSingle phase, 3 wire groundedPower Output 1000 watts (IEC-705 TEST PROCEDUR

4R-305CWTOUCH CONTROL PANELFigure O-1. Oven Schematic-Off ConditionSCHEMATICNOTE: CONDITION OF OVEN1. DOOR CLOSED2. CLOCK APPEARS ON DISPLAYPowerLev

5R-305CWTEST PROCEDURESPROCEDURELETTERCOMPONENT TESTA MAGNETRON ASSEMBLY TEST1. Disconnect the power supply cord, and then remove outer case.2. Open t

6R-305CWTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST7. Reconnect the power supply cord after the outer case is installed.8. Run the oven and check all

7R-305CWRemoval1. Disconnect the power supply cord and then removeouter case.2. Open the door and block it open.3. Discharge high voltage capacitor.4.