Dacor PCOR30B Скачать руководство пользователя страница 14

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PCOR30B
PCOR30R
PCOR30S

Figure O-1. Oven Schematic - Off Condition

SCHEMATIC

NOTE: CONDITION OF OVEN
1. DOOR CLOSED.
2. CLOCK APPEARS ON DISPLAY.

SCHEMATIC

NOTE: CONDITION OF OVEN
1. DOOR CLOSED.
2. COOKING TIME PROGRAMMED.
3. START PAD TOUCHED.

Figure O-2. Oven Schematic - Microwave Cooking Condition

HIGH

VOLTAGE

RECTIFIER

HIGH

VOLTAGE

CAPACITOR

0.9 F

POWER

TRANSFORMER

MA
GNETR

RY8

HOOD

LAMP

HOOD

MOTOR

HOOD

CAPACITOR

BRN

BLU

RED

YEL

HOOD FAN

THERMAL

CUT OUTS

BLK

RED

FUSE

20A

RED RED

MAGNETRON

TEMPERATURE

FUSE

BRN

BLK

BLU

PPL

WHT

BLK

RED

YEL

PNK

RY10

RY9

WHT

RED

BLK

BLU

MONITOR

SWITCH

STIR-

RER

MOTOR

WHT

BRN

BLK

F1 F2

RY1

RY7

RY4

RY5

RY6

DAMPER

THERMISTOR SWITCH

HEATING

ELEMENT

DOOR

SENSING

SWITCH

BLK

GRN

PNK

RED

N.O.

RY3

PPL

COM

RY3

COM

RY2

N.O.

RY1

DAMPER

MOTOR

FAN

MOTOR

OVEN

LAMP

ORG

TTM

CONVE-

CTION

MOTOR

SECONDARY

INTERLOCK

SWITCH

TURN

TABLE

MOTOR

ORG

WHT

ORG BLK

BLK ORG

ORG

BLK

BRN

WHT

BRN PPL

ORG

BLU

WHT

PPL

COM

RY1

N.O.

RY2

AH SENSOR

WHT WHT

RY3

RY2

CONTROL UNIT

STM

THIRD DOOR

SWITCH

120VAC

60Hz

BLK

WHT

GRN

GND

NOISE

FILTER

NOISE

RESISTOR

PNK

PRIMAR

Y INTERLOCK

RELA

BLU

HIGH

VOLTAGE

RECTIFIER

HIGH

VOLTAGE

CAPACITOR

0.9 F

POWER

TRANSFORMER

MA
GNETR

RY8

HOOD

LAMP

HOOD

MOTOR

HOOD

CAPACITOR

BRN

BLU

RED

YEL

HOOD FAN

THERMAL

CUT OUTS

BLK

RED

FUSE

20A

RED RED

MAGNETRON

TEMPERATURE

FUSE

BRN

BLK

BLU

PPL

WHT

BLK

RED

YEL

PNK

RY10

RY9

WHT

RED

BLK

BLU

MONITOR

SWITCH

STIR-

RER

MOTOR

WHT

BRN

BLK

F1 F2

RY1

RY7

RY4

RY5

RY6

DAMPER

THERMISTOR SWITCH

HEATING

ELEMENT

DOOR

SENSING

SWITCH

BLK

GRN

PNK

RED

N.O.

RY3

PPL

COM

RY3

COM

RY2

N.O.

RY1

DAMPER

MOTOR

FAN

MOTOR

OVEN

LAMP

ORG

TTM

CONVE-

CTION

MOTOR

SECONDARY

INTERLOCK

SWITCH

TURN

TABLE

MOTOR

ORG

WHT

ORG BLK

BLK ORG

ORG

BLK

BRN

WHT

BRN PPL

ORG

BLU

WHT

PPL

COM

RY1

N.O.

RY2

AH SENSOR

WHT WHT

RY3

RY2

CONTROL UNIT

STM

THIRD DOOR

SWITCH

120VAC

60Hz

BLK

WHT

GRN

GND

NOISE

FILTER

NOISE

RESISTOR

PNK

PRIMAR

Y INTERLOCK

RELA

BLU

Содержание PCOR30B

Страница 1: ...AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY INSIDE FRONT COVER BEFORESERVICING INSIDE FRONT COVER WARNING TO SERVICE PERSONNEL 1 MICROWAVEMEASUREMENTPROCEDURE 2 FOREW...

Страница 2: ...operative unit perform a microwave emission check as per the Microwave Measure ment Procedure outlined in this service manual If microwave emissions level is in excess of the specified limit contact D...

Страница 3: ...1 PCOR30B PCOR30R PCOR30S NOTES...

Страница 4: ...in 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 su...

Страница 5: ...tely 4 SetthecookingcontrolonFullPowerCookingMode Closethedoorandselectacookcycleofseveralminutes Ifthewater begins to boil before the survey is completed replace it with 275 ml of cool water C Leakag...

Страница 6: ...high voltage capacitor 4 Disconnect the leads to the primary of the power transformer 5 Ensure that these leads remain isolated from other components and oven chassis by using insulation tape 6 After...

Страница 7: ...radiationhazard WARNING Never operate the oven until the following points are ensured A The door is tightly closed B The door brackets and hinges are not defective C The door packing is not damaged D...

Страница 8: ...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 MINU...

Страница 9: ...ely closed 7 One touch door open button Push to open door 8 FAN HI LO button Push for High Low Off 9 Light button Push for On Off 10 Auto Touch control panel 11 Time display Digital display 99 minutes...

Страница 10: ...nergized and the digital read outdisplaysthetimestillremaininginthecookcycle when the door was opened 7 Themonitorswitchiselectricallymonitoringtheoperation of the secondary and third door door switch...

Страница 11: ...s energized turning on the damper motor The damper is returned to the open position closing the damper switch contacts which send a signal to the control unit de energizing shut off relay RY6 AUTOMATI...

Страница 12: ...ted automatically according to the weight of the food 3 The shut off relays RY1 RY4 RY5 and RY7 are energized turning on the oven lamp turntable motor cooling fan motor and convection motor The power...

Страница 13: ...des ofthebasecover upthroughtherightandleftsideintake ducts then discharged vertically at rear center top of the oven into the customer s vent system 2 HORIZONTALVENTING The air handing is same as VER...

Страница 14: ...BLK BLK ORG ORG ORG BLK BRN WHT BRN PPL GRY B7 B1 B3 B5 A5 ORG BLU WHT PPL COM RY1 N O RY2 AH SENSOR WHT WHT RY3 RY2 CONTROL UNIT STM GRY THIRD DOOR SWITCH 120VAC 60Hz BLK WHT GRN GND NOISE FILTER NOI...

Страница 15: ...LAMP ORG OL CM FM TTM DM CONVE CTION MOTOR SECONDARY INTERLOCK SWITCH TURN TABLE MOTOR ORG WHT ORG BLK BLK ORG ORG ORG BLK BRN WHT BRN PPL GRY B7 B1 B3 B5 A5 ORG BLU WHT PPL COM RY1 N O RY2 AH SENSOR...

Страница 16: ...RELAY SECONDARYSWITCH DOORSENS ING SWITCH MONITOR SWITCH AND PRI MARY SWITCH FOR PROPER OPERATION REFERTOCHAPTER TESTPROCEDURE NOTE MONITOR FUSE PRIMARY SWITCH AND MONITOR SWITCH ARE REPLACED AS AN A...

Страница 17: ...lement is de energized and the convection fan stops operating and the oven shuts off DAMPEROPEN CLOSEMECHANISM Usually the damper is in the open position except during convection cooking Damper positi...

Страница 18: ...FS BA018 KIT as an assembly IMPORTANT Whenever troubleshooting is performed with the power supply cord disconnected It may in some cases be necessary to connect the power supply cord after the outer c...

Страница 19: ...motor should be operating at low speed Hood lights do not turn on with pushed HOOD LAMP button Hood fan motor does not rotate at all with pushed FAN button Speed of the hood fan motor does not change...

Страница 20: ...CTIONMOTOR HOOD LAMP OR SOCKET HOODMOTORCAPACITOR SHORTED OR OPENED WIRING SHORTEDINPOWERCORD NO POWER AT OUTLET LOWVOLTAGE NOISE FILTER M N O P Q R S S S S S S S S S S U V RE RE RE RE CK CK RE CK RE...

Страница 21: ...temperature of the water 2 Place the cup of water in the oven Operate oven at POWER 10 HIGH selecting more than 60 seconds cook time Allow the water to heat for 60 seconds measuring with a stop watch...

Страница 22: ...removed from components during testing 6 Reinstall the outer case cabinet 7 Reconnect the power supply cord after the outer case is installed 8 Run the oven and check all functions D HIGH VOLTAGE CAPA...

Страница 23: ...the front plate of the oven cavity with the door opened in this condition the plunger of the monitor switch is pushed in the meter should indicate an open circuit If improper operation is indicated th...

Страница 24: ...closed circuit If the temperature of the magnetron reaches approximately 302O F 150O C the temperature fuse opens An open temperature fuse indicates overheating of the magnetron Check for restricted...

Страница 25: ...ptacle and 120 volts A C is supplied to the damper motor themotoroperatesuntilthedamperisopenedandthedamperswitchcloses Thenthedamper motor stops operation 5 If the damper motor does not operate check...

Страница 26: ...to two units LSI Unit and Power Unit and troubleshooting by unit replacement is described according to the symptoms indicated Before testing 1 Disconnect the power supply cord and then remove outer ca...

Страница 27: ...r and block it open 3 Discharge high voltage capacitor 4 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 sen...

Страница 28: ...x 24 0V D C Power transformer Stirrer mootor RY3 Approx 24 0V D C Heatingelement RY4 Approx 24 0V D C Turntablemotor RY5 Approx 24 0V D C Fan motor RY6 Approx 24 0V D C Dampermotor RY7 Approx 24 0V D...

Страница 29: ...y assembled before following procedure 1 The oven should be plugged in at least five minutes before sensor cooking 2 Room temperature should not exceed 95O F 35O C 3 The unit should not be installed i...

Страница 30: ...ely 200 milliliters 7 2 oz of tap water in a 1000 milliliter measuring cup 9 2 Place the container on the center of tray in the oven cavity 9 3 Close the door 9 4 Touch SENSOR COOK pad And touch the n...

Страница 31: ...GPOINT INDICATION OF OHM METER Between N and H Open Circuit Between terminal N and GRY Short Circuit Between terminal H and RED Short Circuit If incorrect readings are obtained replace the noise filte...

Страница 32: ...lement is a Fluorescent Display Basically a Fluorescent Display is triode having a cath ode a grid and an anode Usually the cathode of a Fluorescent Display is directly heated and the filament serves...

Страница 33: ...f G8 line keys on key matrix is touched a corresponding signal will from P00 P06 will be input into AN1 When no key is touched the signal is held at L level 12 AN0 IN Temperaturemeasurementinput OVENT...

Страница 34: ...s the basic timing for all real time processing of LSI 26 P40 IN Connected to VC 27 RST IN Auto clear terminal Signal is input to reset the LSI to the initial state when power is applied Temporarily s...

Страница 35: ...lly one pulse is outputineverysynchronizedsignal period andinput to the grid of the fluorescent display 41 44 P17 P14 OUT Digit selection signal Signal similar to P23 45 48 P13 P10 OUT Segment data si...

Страница 36: ...ntrol sensor cooking of the unit When the unit is set in the sensor cooking mode a 16 seconds clearing cycle occurs Thenthedetectorcircuitstartstofunctionandthe LSI observes the initial voltage availa...

Страница 37: ...ls the power supply cord between the touchcontrolpanelandtheovenproperislongenoughthat theymaybeseparatedfromeachother Forthosemodels therefore it is possible to check and repair the controls of theto...

Страница 38: ...or is bent or warped 5 There are defective parts in the door interlock system 6 There are defective parts in the microwave generating and transmission assembly 7 There is visible damage to the oven Do...

Страница 39: ...y cord together with the outer case 8 Discharge high voltage capacitor CAUTION 1 DISCONNECT OVEN FROM POWER SUPPLY BEFORE REMOVING OUTER CASE 2 DISCHARGE THE HIGH VOLTAGE CAPACITOR BEFORE TOUCHING ANY...

Страница 40: ...tercase removetheunitmountingscrew and hood intake duct R Refer to procedure of Removal of Oven from Wall Outer case Removal and Unit Mounting Screw and Hood Intake Duct R Removal 2 Open the door bloc...

Страница 41: ...supplycord removetheovenfrom wall and remove outer case remove the unit mounting screw and hood intake duct R Refer to procedure of RemovalofOvenfromWall OutercaseRemoval and UnitMountingScrewandHoodI...

Страница 42: ...rrerfannottocomeoutfromtheshaftofstirrer motor 3 Insert the cutout of stirrer cover to the tabs on the ceiling 4 Put the stirrer fan on the stirrer cover to match the stirrer fan shaft to the center o...

Страница 43: ...dforwardauntilbbreaksasshowninstep 1 2 To remove the middle section push both sides of the middle section towards d until c breaks as shown in step 2 NOTE Discard the middle section 3 Afterremovingthe...

Страница 44: ...tion motor shaft 24 Remove the E ring from the convection motor shaft 25 Remove two 2 screws holding the convection motor to convection motor mounting plate 26 Now the convection motor is free CONVECT...

Страница 45: ...d door with an approved microwave survey meter Refer to Microwave Measurement Procedure DOORASSEMBLYREMOVAL 1 Unplug the oven from power outlet and remove the oven from wall and remove outer case Refe...

Страница 46: ...re of RemovalofOvenfromWall and OutercaseRemoval 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Remove the hood exhaust louver from the oven cavity by pushingtherightandlefttab...

Страница 47: ...BLK BLK BLU 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 RY3 RY1 RY9 RY7 CN F T1 1...

Страница 48: ...OST CONTROL 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...

Страница 49: ...0 42 CF1 ZD4 D30 D32 OVEN LAMP AC H ZD3 RY3 RY2 RY1 P S1 S2 RY9 RY10 RY8 IC2 IC1 BFB 29 30 31 32 33 2 27 15 43 38 C10 C2 Q90 16 R91 D31 R92 R93 50 R75 J6 J3 Q28 CONV H MICRO Q29 Q27 Q23 ZD2 Q20 D26 D2...

Страница 50: ...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...

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