Empire Comfort Systems R-963S Service Manual

TABLE OF CONTENTSPageSERVICING ...

R-953/963M - 8DOOR OPEN MECHANISMThe door can be opened by pushing the open button on thecontrol panel. When the open button is pushed, the openlever

R-953/963M - 9The rated peak reverse voltage of D1 of the asymmetricrectifier is 6 KV. The rated peak reverse voltage of D2 ofthe asymmetric rectifier

R-953/963M - 101. If the temperature of the thermistor does not rise tomore than 40˚C after 4 minutes and 15 seconds fromwhen the oven is started in c

R-953/963M - 11Fuse F8A blows when the door is opened.Home fuse blows when power cord is plugged into wall outlet.Fuse 20A blows when power cord is pl

R-953/963M - 12B HIGH VOLTAGE TRANSFORMER TESTWARNING: High voltage and large currents are present at the secondary winding andfilament winding of th

R-953/963M - 13C HIGH VOLTAGE RECTIFIER TESTCARRY OUT 3D CHECKS.Isolate the high voltage rectifier assembly from the HV circuit. The high voltage rect

R-953/963M - 14CARRY OUT 3D CHECKS.Disconnect the leads from the terminals of the thermal cut-out. Then using an ohmmeter, make acontinuity test acros

R-953/963M - 15PROCEDURELETTERCOMPONENT TESTJ BLOWN FUSE 20ACARRY OUT 3D CHECKS.If the fuse 20A is blown, there is a shorts or grounds in electrical p

R-953/963M - 16M TOUCH CONTROL PANEL ASSEMBLY TESTThe touch control panel consists of circuits including semiconductors such as LSI, ICs, etc. Therefo

R-953/963M - 17PROCEDURELETTERCOMPONENT TESTCARRY OUT 3D CHECKS.Remove the outer case and check voltage between Pin Nos. 1 and 3 of the 4 pin connecto

REMEMBER TO CHECK 3D1) Disconnect the supply.2) Door opened, and wedged open.3) Discharge high voltage capacitor.WARNING: AGAINST THE CHARGE OF THE HI

R-953/963M - 18PROCEDURELETTERCOMPONENT TESTChecking the initial sensor cooking condition(1) The oven should be plugged in at least two minutes before

R-953/963M - 19The touch control section consists of the following units asshown in the touch control panel circuit.(1) Key Unit(2) Control Unit (The

R-953/963M - 201 AN0 IN Terminal not used. (For only R-953(SL)M/(W)M)1 AN0 IN Used for initial balancing of the bridge circuit (absolute humidity sens

R-953/963M - 21Pin No. Signal I/O Description22 INT1 OUT Terminal not used.23 INT0 IN Signal to synchronized LSI with commercial power source frequenc

R-953/963M - 2236 P22 OUT Terminal not used.37 P21 OUT Damper motor relay driving signal.To turn on and off shut-off relay (RY8).38 P20 OUT Touch cont

R-953/963M - 23(1) Structure of Absolute Humidity SensorThe absolute humidity sensor includes two thermistorsas shown in the illustration. One thermis

R-953/963M - 241. Precautions for Handling Electronic ComponentsThis unit uses CMOS LSI in the integral part of the circuits.When handling these parts

R-953/963M - 257. Lift the entire case from the oven.8. Discharge the H.V. capacitor before carrying out anyfurther work.10.Do not operate the oven wi

R-953/963M - 26HIGH VOLTAGE TRANSFORMER REMOVAL1. CARRY OUT 3D CHECKS.2. Disconnect the main wire harness from the high volt-age transformer.3. Discon

R-953/963M - 27CAUTION:• Do not hit the fan blade when installing be-cause the bracket may be deformed.• Make sure that the fan blade rotates smoothly

R-953/963M - 1SERVICE MANUALMICROWAVE OVEN WITHGRILL AND CONVECTION R-953(SL)M/ R-953(W)M/ R-963(SL)M/ R-963(W)MGENERAL IMPORTANT INFORMATIONThis Man

R-953/963M - 281. CARRY OUT 3D CHECKS.2. Remove the wire leads as Positive lock® connectorremoval above.3. Lift up the oven lamp from its retaining cl

R-953/963M - 291. CARRY OUT 3D CHECKS.2. Disconnect wire leads from the thermal cut-out (GRILL).3. Remove the two (2) screws holding the AH sensorasse

R-953/963M - 306. Re-install choke cover to door panel by clipping intoposition.7. Locate door panel hinge pins into cavity hinge locationholes.8. Re

R-953/963M - 31MICROWAVE MEASUREMENTAfter any repair, the microwave oven must be checked formicrowave leakage to ensure continued safe operation.BS EN

R-953/963M - 32SCHEMATICNOTE: CONDITION OF OVEN1. DOOR OPENED.2. "ENERGY SAVED MODE" APPEARS ON DISPLAY.SCHEMATICNOTE: CONDITION OF OVEN1. D

R-953/963M - 33Figure O-2 Oven Schematic-Microwave cooking ConditionSCHEMATICNOTE: CONDITION OF OVEN1. DOOR CLOSED.2. COOKING TIME ENTERED.3. STRAT KE

R-953/963M - 34SCHEMATICNOTE: CONDITION OF OVEN1. DOOR CLOSED.2. COOKING TIME ENTERED.3. CONVECTION TEMPERATURE SELECTED.4. STRAT KEY TOUCHED.Figure O

R-953/963M - 35SCHEMATICNOTE: CONDITION OF OVEN1. DOOR CLOSED.2. COOKING TIME ENTERED.3. DUAL CONV./GRILL PAD TOUCHED ONCE.4. CONVECTION TEMPERATURE S

R-953/963M - 36Figure S-1. Pictrorial DiagramTHERMAL CUT-OUT(MAG)THERMAL CUT-OUT(CONV.)OVEN LAMP THERMAL CUT-OUT(GRILL)YLWREDBLK1 RED23 BLK45 WHT67 YL

R-953/963M - 37Figure S-2. Power Unit CircuitE 1WH1-4WH1-3WH1-6WH1-9WH1-5WH1-8WH1-7WH1-1WH1-2WH2-1WH1-nWH1-10WH1-12WH1-13WH1-14WH1-15WH1-11C 1E 3E 5E

R-953/963M - 2SPECIFICATIONITEM DESCRIPTIONPower Requirements 230 - 240 Volts / 50 Hertz / Single phase, 3 wire earthedPower Consumption Microwave coo

R-953/963M - 38Figure S-3(a). CPU Unit Circuit (R-953(SL)M/(W)M)C1-5C1-3C1-6C1-10C2-2C1-2C2-1C1-4+–C1-9C1-11C2-4C2-3C1-8C1-7C1-15C1-12C1-13C1-14C1-1C

R-953/963M - 39Figure S-3(b). CPU Unit Circuit (R-963(SL)M/(W)M)C1-5C1-3C1-6C1-10C2-2C1-2C2-1C1-4F-1 F-2 F-3+–C1-9C1-11C2-4C2-3C1-8C1-7C1-15C1-12C1-1

R-953/963M - 40Figure S-4. Indicator CircuitCOM16COM15COM14COM13COM12COM11COM10COM9SEG40SEG39SEG38SEG37SEG36SEG35SEG34SEG33SEG32SEG31SEG30SEG29SEG28SE

R-953/963M - 41Figure S-5(a). Key Unit Circuit (R-953(IN)M/(W)M)IC1-6(P73)IC1-7(P72)IC1-8(P71)IC1-9(P70)VCGNDIC1-77(AN4)IC1-39(P17)R67 15kR66 15kR75 1

R-953/963M - 42Figure S-5(b). Key Unit Circuit (R-963(IN)M/(W)M)IC1-6(P73)IC1-7(P72)IC1-8(P71)IC1-9(P70)VCGNDIC1-77(AN4)IC1-39(P17)R67 15kR66 15kR75 1

R-953/963M - 43Figure S-6. Printed Wiring Board of Power UnitDIP11351Q1BR3(J1)(J2)ER4R2R6D1BEQ2ROTIMICROOL:TTM TH CH:BH8ZD2RY9RY2DAMPCFFMRY19117RY3 RY

R-953/963M - 44Note: The parts marked "∆" may cause undue microwave exposure. / The parts marked "*" are used involtage more than

R-953/963M - 45**∆∆∆∆∆∆Note: The parts marked "∆" may cause undue microwave exposure. / The parts marked "*" are used involtage m

R-953/963M - 46Note: The parts marked "∆" may cause undue microwave exposure. / The parts marked "*" are used involtage more than

R-953/963M - 47OVEN PARTSThese holes for R963M only7-131-97-54-184-204-174-254-277-157-34-234-194-244-164-294-244-94-84-304-74-54-24-414-387-161-197-1

R-953/963M - 3OVENCONTROL PANELDIGITAL DISPLAY:Note for R-963M: When is high-lighted in the display, press theINFO key to read a specific hintwhich

R-953/963M - 48CONTROL PANEL PARTSDOOR PARTS5-1-45-15-25-1-25-1-15-1-75-1-55-1-35-1-85-1-85-1-63-83-63-93-43-73-13-33-23-5CONTROL PANEL / DOOR PARTS

R-953/963M - 49MISCELLANEOUSPACKING AND ACCESSORIESActual wire harness may be different than illustration.To Magnetron ToCapacitor6-46-86-56-106-9MISC

R-953/963M - 502000 SHARP CORP. (6S1.31E) Printed in U.K.COPYRIGHT C 2000 BY SHARP CORPORATION ALL RIGHT RESERVED.No part of this pub

R-953/963M - 4OPERATION SEQUENCEOFF CONDITIONClosing the door activates the monitored latch switch andthe stop switch.IMPORTANT:When the oven door is

R-953/963M - 5Note: The On/Off time ratio does not exactly correspondto the percentage of microwave power, becauseapprox. 3 seconds are needed for he

R-953/963M - 6ON/OFF TIME RATIOIn grill cooking, convection cooking or dual cooking, thegrill heating elements or magnetron operate within a 48second

R-953/963M - 7AH SENSOR COOKING SEQUENCE1. When the AH sensor cooking condition is started, thecoil of shut-off relays (RY1+RY6) are energized, theove