Sharp R-508DK Service Manual

R-508DKR-510DKR-510DWIn the interest of user-safety the oven should be restored to its originalcondition and only parts identical to those specified s

8R-508DKR-510DKR-510DWDESCRIPTION AND FUNCTION OF COMPONENTSDOOR OPEN MECHANISMThe door is opened by pushing the open button on thecontrol panel, refe

9R-508DKR-510DKR-510DWTROUBLESHOOTING GUIDENever touch any part in the circuit with your hand or an uninsulated tool while the power supply is connect

10R-508DKR-510DKR-510DWA MAGNETRON ASSEMBLY TEST1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block it open.3.

11R-508DKR-510DKR-510DWB POWER TRANSFORMER TEST1. Disconnect the power supply cord, and then remove outer case.2. Open the door and block it open.3. D

12R-508DKR-510DKR-510DWTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove outer case.2. Open the door an

13R-508DKR-510DKR-510DWTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove outer case.2. Open the door an

14R-508DKR-510DKR-510DWH BLOWN MONITOR FUSE TESTTEST PROCEDURESPROCEDURELETTERCOMPONENT TEST1. Disconnect the power supply cord, and then remove outer

15R-508DKR-510DKR-510DWb) When touching a number pad, two figures or more are displayed.c) When touching the pads, sometimes a pad produces no signal.

16R-508DKR-510DKR-510DWWARNING : The oven should be fully assembled before following procedure.(1) Place one cup of water in the center of the turntab

17R-508DKR-510DKR-510DW(6) If improper operation is indicated, the control unit is probably defective and should be checked.TEST PROCEDURESPROCEDURELE

R-508DKR-510DKR-510DWPRECAUTIONS TO BE OBSERVED BEFORE ANDDURING SERVICING TO AVOID POSSIBLEEXPOSURE TO EXCESSIVE MICROWAVEENERGY(a) Do not operate or

18R-508DKR-510DKR-510DW1-2 VL2-VL1 IN Power source voltage input terminal.Standard voltage for LCD.3-6 AN7-AN4 IN Terminal to change cooking input acc

19R-508DKR-510DKR-510DW11 P57 OUT Back light circuit (Light emitting diodes) driving signal.12-13 P56-P55 OUT Terminal not used.14 CNTR0 OUT Signal to

20R-508DKR-510DKR-510DW33 P27 OUT Key strobe signal.Signal applied to touch-key section. A pulse signal is input to P41, P43, P44 and P45terminal whil

21R-508DKR-510DKR-510DW1. Precautions for Handling Electronic ComponentsThis unit uses CMOS LSI in the integral part of thecircuits. When handling the

22R-508DKR-510DKR-510DWTo remove the outer case, proceed as follows.1. Disconnect the power supply cord.2. Open the oven door and block it open.3. Rem

23R-508DKR-510DKR-510DWPOWER TRANSFORMER REMOVALRe-instal1. Rest transformer on the bottom plate with its primaryterminals toward the oven face plate.

24R-508DKR-510DKR-510DWCONTROL PANEL ASSEMBLY REMOVALPOSITIVE LOCK® CONNECTOR (NO-CASE TYPE) REMOVALFigure C-2. Positive lock® connector1. Disconnec

25R-508DKR-510DKR-510DWCOOLING FAN MOTOR REMOVALREMOVAL1. Disconnect the power supply cord and then removeouter case.2. Open the door and block it ope

26R-508DKR-510DKR-510DWDOOR REPLACEMENTforth, and up and down. In and out play of the doorallowed by the upper and lower position of the latch hooksho

27R-508DKR-510DKR-510DWNote: The door on a microwave oven is designed to act asan electronic seal preventing the leakage ofmicrowave energy from oven

1R-508DKR-510DKR-510DWWARNING TO SERVICE PERSONNELMicrowave ovens contain circuitry capable of pro-ducing very high voltage and current, contact withf

28R-508DKR-510DKR-510DW645123645123ABCDEFGHABCDEFGHFigure S-1. Pictorial DiagramHIGH VOLTAGECAPACITORHIGH VOLTAGEWIRE AH.V. RECTIFIERPOWER SUPPLY CORD

29R-508DKR-510DKR-510DW645123645123ABCDEFGHABCDEFGHFigure S-2. Power Unit Circuit+–A 1C 3C 5C 9C 4C 6C 8C 1C 7C 2A 2NONOSH-ACOMCOMD1S1NB10T1ACACGNDVRI

30R-508DKR-510DKR-510DW645123645123ABCDEFGHABCDEFGHFigure S-3. CPU Unit Circuit For R-508DK+–+–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

31R-508DKR-510DKR-510DW645123645123ABCDEFGHABCDEFGHFigure S-4. CPU Unit Circuit For R-510DK/DW+–+–C-3G 9G 85 4 3 2 1 0 9 8 7 6 G 7 G 6 G 5 G 4 G 3 G

32R-508DKR-510DKR-510DW645123645123ABCDEFGHABCDEFGHFigure S-5 . Printed Wiring Board of Power UnitCN - BCN - COLTTM FMSP1RY1RY3 RY2 MICROBROWNERVHACO

33R-508DKR-510DKR-510DWREF. NO. PART NO. § DESCRIPTION Q'TY CODEPARTS LISTNote: The parts marked “∆” may cause undue microwave exposure.The parts

34R-508DKR-510DKR-510DWHOW TO ORDER REPLACEMENT PARTSTo have your order filled promptly and correctly, please furnish the following information.1. MOD

35R-508DKR-510DKR-510DW645123645123ABCDEFGHABCDEFGHOVEN AND CABINET PARTS2-34-76-71-54-64-114-84-96-36-56-42-17-111-124-107-27-27-54-31-131-107-37-67-

36R-508DKR-510DKR-510DW645123645123ABCDEFGHABCDEFGHCONTROL PANEL PARTSDOOR PARTSMISCELLANEOUSActual wire harness may be different from illustration.6

37R-508DKR-510DKR-510DWPACKING AND ACCESSORIESDOOR PROTECTION SHEETSPADP0221MRE0PLASTIC BAGSSAKHB007MRE0 PACKING CASESPAKCB278MRE0 (R-508DK)SPAKCB276M

2R-508DKR-510DKR-510DWMICROWAVE MEASUREMENT PROCEDUREA. Requirements:1) Microwave leakage limit (Power density limit): The power density of microwave

38R-508DKR-510DKR-510DW'20 SHARP CORP. (2S2.530E) Printed in U.S.ACOPYRIGHT © 2000 BY SHARP CORPORATIONALL RIGHTS RESERVED.No part of this public

3R-508DKR-510DKR-510DWSHARP ELECTRONICS CORPORATIONSHARP PLAZA, MAHWAH,NEW JERSEY 07430-2135SERVICE MANUALMICROWAVE OVENR-508DK/ R-510DK/ R-510DWFOREW

4R-508DKR-510DKR-510DWITEM DESCRIPTIONPower Requirements 120 Volts / 13.8 Amperes60 HertzSingle phase, 3 wire groundedPower Output 1200 watts (IEC TES

5R-508DKR-510DKR-510DWMINUTE PLUSCOMPUDEFROSTPOWERLEVELTIMERCLOCKINSTANT ACTION1234567809TO ADJUST QUANTITY - TOUCH PAD AGAIN1200 WATTSDINERPLATECASSE

6R-508DKR-510DKR-510DWOPERATIONDESCRIPTION OF OPERATING SEQUENCEThe following is a description of component functions duringoven operation.OFF CONDITI

7R-508DKR-510DKR-510DWFigure O-1. Oven Schematic-Off ConditionSCHEMATICNOTE: CONDITION OF OVEN1. DOOR CLOSED.2. CLOCK APPEARS ON DISPLAY.SCHEMATICNOTE