Sharp R-2397 Wartungshandbuch

SHARP CORPORATIONR-2397 SERVICE MANUALTABLE OF CONTENTSPageCAUTION, MICROWAVE RADIATION ...

8R-2397CONDITION“ . “ does not appear on display when powercord is plugged into wall outlet.Control panel can not accept key in.Fuse F6.3A blows whe

9R-2397MAGNETRON THERMAL CUT-OUT 145˚C TC1MAGNETRON THERMAL CUT-OUT 145˚C TC2B. MOTOR THERMAL CUT-OUT 115˚C TC3OVEN THERMAL CUT-OUTT 115˚C TC4MONITOR

10R-2397TEST PROCEDURESPROCEDURELETTERCOMPONENT TESTA MAGNETRON TESTTo test for an open circuit filament use an ohmmeter to make a continuity test bet

11R-2397TEST PROCEDURESPROCEDURELETTERCOMPONENT TESTInitial temperature...

12R-2397TEST PROCEDURESPROCEDURELETTERCOMPONENT TESTIsolate the high voltage rectifier assembly from the HV circuit. The asymmetric rectifier can be t

13R-2397TEST PROCEDURESPROCEDURELETTERCOMPONENT TESTG WEAK POINT A017CARRY OUT 3D CHECKS.If the weak point A017 is blown, there could be a shorts or g

14R-2397TEST PROCEDURESPROCEDURELETTERCOMPONENT TESTCARRY OUT 3D CHECKS.Disconnect connector-H from the CPU unit. Measure the resistance of the thermi

15R-2397TEST PROCEDURESPROCEDURELETTERCOMPONENT TESTL (min) Cx ± 20% Cy ± 20%0.5mH 0.22 µF 4700 pFMEASURING POINT INDICATION OF OHMMETERBetween N and

16R-2397TEST PROCEDURES (CONT'D)PROCEDURELETTERCOMPONENT TESTIf a specific pad does not respond, the above method may be used (after clearing the

R-239717This AC voltage is then half wave rectified by D61/D62and smoothed (filtered) by C61/C62.This AC voltage is the input to the IN3 and IN5 ports

R-2397

R-239718DESCRIPTION OF LSILSI(IZA646DR)The I/O signal of the LSI(IZA646DR) is detailed in the following table.Pin No. Signal I/O Description1 VREF IN

R-239719Pin No. Signal I/O Description27 RESET IN Auto clear terminal.Signal is input to reset the LSI to the initial state when power is supplied. Te

R-239720Pin No. Signal I/O Description46 P10 OUTSegment data signal.Signal similar to P17.47-48 P07-P06 OUTSegment data signal.Signal similar to P17.4

R-239721Pin No. Signal I/O Description1-3 A0-A2 IN Connected to GND.4 VSS IN Connected to VC(-5V).5 SDA IN/OUT Serial data input/output : input/output

R-2397221) Practice for checking total service counts (eg; 234,567 Counts).2) Practice for clearing Service's counts" " : Fli

R-239723Memory No. Cook Time Output Power1 5 sec. 100%2 10 sec. 100%3 20 sec. 100%4 30 sec. 100%5 40 sec. 100%6 50 sec. 100%7 1 min. 100%8 1 min. 15 s

24R-2397CAUTION:DISCHARGE HIGH VOLTAGE CAPACI-TOR BEFORE TOUCHING ANY OVENCOMPONENTS OR WIRING.COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDUREWARNING:

25R-2397MAGNETRON REMOVAL1. Remove the outer case cabinet referring to "OUTERCASE REMOVAL" and CARRY OUT 3D CHECKS.2. Remove the eleven (11)

26R-2397CONTROL PANEL ASSEMBLY AND CONTROL UNIT REMOVALCONTROL PANEL ASSEMBLY REMOVALThe complete control panel should be removed for re-placement of

27R-2397POWER SUPPLY CORD REPLACEMENT1. CARRY OUT 3D CHECKS2. Release the cord bushing from the rear cabinet.3. Disconnect the brown and blue wires of

1R-2397SERVICE MANUALSHARP CORPORATIONOSAKA, JAPANCOMMERCIALR-2397GENERAL IMPORTANT INFORMATIONThis Manual has been prepared to provide Sharp Corp. Se

28R-2397DOOR REPLACEMENT1. CARRY OUT 3D CHECKS.2. Remove four (4) screws holding the upper and loweroven hinge to the oven cavity.3. Remove door assem

29R-2397SERVICE INFORMATIONIMPORTANT: When replace the magnetron MG1 and/or MG2, the relays RY3 and RY4 on control unit must bereplaced at the same ti

30R-2397SCHEMATICNOTE: CONDITION OF OVEN1. DOOR CLOSED2. APPEARS ON DISPLAYSCHEMATICNOTE: CONDITION OF OVEN1. DOOR CLOSED.2. TIME KEY TIUCHED.

31R-2397645123645123ABCDEFGHABCDEFGHFigure S-1. Pictorial DiagramBRNNOISE FILTERFERRITE CLAMP RFERRITE FERRITE LNBLUF1: WEAK POINT A017WHTBLKSTOPSWI

32R-2397645123645123ABCDEFGHABCDEFGHFigure S-2. Control Panel CircuitVPVREFIN7IN6IN5IN4IN3IN2IN1IN0P47P46P45P44P43P42P41P40P37P36P35P34P33P32P31P30CNV

33R-2397645123645123ABCDEFGHABCDEFGHFigure S-3. Printed Wiring Board(ZD3)1 3 (1) 5 (3) 9 (7) (9)(D85)4Q41 R411045 50 554060 6412R63(J11)R653125R401510

34R-2397PARTS LIST**∆** ELECTRIC PARTS1- 1 FH-HZA050WRE0 Magnetron thermistor 1 AP1- 2 QSOCLA011WRE0 Oven lamp socket 1 AH1- 3 FH-HZA049WRE0 Intake th

35R-2397C80 VCEAB31HW104M Capacitor 0.1 uF 50V 1 AMC81 VCEAB31HW225M Capacitor 2.2 uF 50V 1 AAC82 VCEAB31HW105M Capacitor 1.0 uF 50V 1 AAC

36R-2397Note: The parts marked "∆" may cause undue microwave exposure.The parts marked "*" are used in voltage more than 250V.REF.

37R-2397Note: The parts marked "∆" may cause undue microwave exposure.The parts marked "*" are used in voltage more than 250V.REF.

2R-2397GENERAL INFORMATIONWARNINGTHIS APPLIANCE MUST BE EARTHEDIMPORTANTTHE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING COD

38R-2397645123645123ABCDEFGHABCDEFGHHOW TO ORDER REPLACEMENT PARTSTo have your order filled promptly and correctly, please furnish the following infor

39R-2397645123645123ABCDEFGHABCDEFGHOVEN AND CABINET PARTSA1A2A1A21-64-331-236-191-51-182-71-94-21-171-161-24-184-34-404-374-414-214-214-151-174-164-3

40R-2397645123645123ABCDEFGHABCDEFGHDOOR PARTS5-155-165-175-185-45-205-125-105-115-115-145-215-15-95-85-75-65-195-135-135-25-35-55-65CONTROL PANEL PAR

41R-2397PACKING ADD KIT* CPADBA203WRK0WRAP COVERDOOR PROTECTION SHEET* SPADPA552WRE0PACKING CASE* SPAKCC551WRE0DOOR PAD* SPADF0341WRE0TRAY HOLDE

42R-2397'97 SHARP CORP. (5U0.10E) Printed in Japan

3R-2397APPEARANCE VIEWINSTALLATION INFORMATIONWhen this commercial microwave oven is installed near other commercial electrical appliances, connect a

4R-2397OFF CONDITIONClosing the door activates all door interlock switches(1st latch switch, 2nd latch switch, 3rd latch switch and stopswitch)IMPORTA

5R-2397FUNCTION OF IMPORTANT COMPONENTSMONITOR SWITCHThe monitor switch is activated (the contacts opened) theupper latch head and switch lever A whil

6R-2397MAGNETRON THERMISTORThe air temperature around the lower magnetron isdetected through the resistance of the thermistor.If the temperature is hi

7R-2397SERVICING WARNING TO SERVICE PERSONNELMicrowave ovens contain circuitry capable of producing very high voltage and current. Contact with follow