Viking Designer DMOR200SS Service Manual Download Page 11

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DMOR200SS

SCHEMATIC

NOTE: CONDITION OF OVEN
.   DOOR CLOSED.
2.  COOKING TIME PROGRAMMED.
3.  VA R I A B L E   C O O K I N G   C O N T RO L

"HIGH".

Figure O-2. Oven Schematic-Cooking Condition

Figure O-1. Oven Schematic-Off Condition

SCHEMATIC

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

NOTE: " " indicates components with potential above 250V.

CAVITY THERMAL
CUTOUT

120VAC
60Hz

BLK

WHT

BLK

WHT

GRN

MAGNETRON

TEMP

FUSE

PRIMARY
INTERLOCK
SWITCH

POWER
TRANSFORMER

GNETR

HIGH

VOLTAGE

CAPACITOR

GND

COM.

N.O.

N.C.

HIGH

VOLTAGE

RECTIFIER

NOISE
FILTER

RED

GND

BLK

MONITOR
FUSE

COM.

WHT

BRN

WHT

CONTROL UNIT

N.O.

(RY2)

COM.

DOOR
SENSING
SWITCH

TTM

TURN
TABLE
MOTOR

FAN
MOTOR

OVEN
LAMP

ORG

SECONDARY
INTERLOCK
RELAY

RED

SENSOR

(RY1)

OVEN
LAMP
RELAY

HUMIDITY

BRN

THIRD

DOOR
SWITCH

N.O.

COM.

MONITOR

SWITCH

HOOD

HOOD
MOTOR

BLU

N.O.

BLK

RED

ORG

BLK

GRY

RY4

RY6

RY5

RY3

LOW

BLK

WHT

HIGH

CAPACITOR

RED

WHT

BLU

BRN

RED

WHT

BRN

WHT

BLU or

PNK

CUTOUT

THERMAL

HOOD FAN

RED or

WHT

CAVITY THERMAL
CUTOUT

120VAC
60Hz

BLK

WHT

BLK

WHT

GRN

MAGNETRON

TEMP

FUSE

PRIMARY
INTERLOCK
SWITCH

POWER
TRANSFORMER

GNETR

HIGH

VOLTAGE

CAPACITOR

GND

COM.

N.O.

N.C.

HIGH

VOLTAGE

RECTIFIER

NOISE
FILTER

RED

GND

BLK

MONITOR
FUSE

COM.

WHT

BRN

WHT

CONTROL UNIT

N.O.

(RY2)

COM.

DOOR
SENSING
SWITCH

TTM

TURN
TABLE
MOTOR

FAN
MOTOR

OVEN
LAMP

ORG

SECONDARY
INTERLOCK
RELAY

RED

SENSOR

(RY1)

OVEN
LAMP
RELAY

HUMIDITY

BRN

THIRD

DOOR
SWITCH

N.O.

COM.

MONITOR

SWITCH

HOOD

HOOD
MOTOR

BLU

N.O.

BLK

RED

ORG

BLK

GRY

RY4

RY6

RY5

RY3

LOW

BLK

WHT

HIGH

CAPACITOR

RED

WHT

BLU

BRN

RED

WHT

BRN

WHT

BLU or

PNK

CUTOUT

THERMAL

HOOD FAN

RED or

WHT

Summary of Contents for Designer DMOR200SS

Page 1: ...ONNEL 3 MICROWAVE MEASUREMENT PROCEDURE 4 FOREWORD AND WARNING 5 PRODUCT SPECIFICATIONS 6 GENERAL INFORMATION 6 OPERATION 9 TROUBLESHOOTING GUIDE 13 TEST PROCEDURE 15 COMPONENT REPLACEMENT AND ADJUSTM...

Page 2: ...should be performed on each oven prior to release to the owner BEFORE SERVICING Before servicing an operative unit perform a microwave emission check as per the Microwave Measure ment Procedure outlin...

Page 3: ...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 that procedur...

Page 4: ...load of 275 15 ml 9 8 oz of tap water initially at 20 5O C 68O F 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...

Page 5: ...closed B The door brackets and hinges are not defective C The door packing is not damaged D The door is not deformed or warped E There is no other visible damage with the oven Servicing and repair wo...

Page 6: ...ull Power P 0 No power throughout the cooking time KEEP WARM PLUS pad POPCORN pad HOT WATER pad REHEAT pad DEFROST pads Number selection pads REHEAT pads POWER LEVEL pad TIMER CLOCK pad FRESH VEGETABL...

Page 7: ...es door must 6 be securely closed for the oven to operate Cook and time display 7 LIGHT Hi Lo pad controls 8 interior light Press the LIGHT Hi Lo pad once for Hi Press again for Lo Press a third time...

Page 8: ...me one touch cooking features such as ADD A MINUTE are disabled after three minutes when the oven is not used These features are automatically enabled when the door is opened and closed or STOP CLEAR...

Page 9: ...to the stirrer motor the cooling fan motor the turntable motor and the high voltage components are de energized and the digital read out displays the time still remaining in the cook cycle when the do...

Page 10: ...hrough the right and left sides of the oven cavity then discharged vertically at rear center top of the oven into the customer s vent system 2 HORIZONTAL VENTING The air handing is the same as VERTICA...

Page 11: ...COM COM MONITOR SWITCH OL GRY HOOD HOOD MOTOR BLU N O HL BLK RED ORG BLK BLK GRY B5 A5 RY4 RY6 RY5 RY3 NC LOW BLK WHT HIGH B7 B9 CAPACITOR A1 A3 B1 B3 RED YLW GRY WHT GRY BLU BLU BRN RED WHT BRN WHT H...

Page 12: ...ir This cool air is directed through the air vanes surrounding the magnetron and cools the magnetron This air is channelled through the oven cavity to remove steam and vapors given off from the heatin...

Page 13: ...mes inoperative because of a blown monitor fuse check the monitor switch relay RY1 primary interlock relay RY2 door sensing switch secondary interlock switch and third door switch before replacing the...

Page 14: ...oes not light in cook cycle But it does light when door is opened Fan motor does not operate Oven lamp and turntable motor operate Turntable motor does not operate Oven lamp lights and fan motor opera...

Page 15: ...the temperature stabilizes Record the 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...

Page 16: ...the vent holes of the oven cavity especially the cooling fan and air guide 5 Reconnect all leads removed from components during testing 6 Reinstall the outer case cabinet 7 Reconnect the power supply...

Page 17: ...nts 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 F SECONDARY INTERLOCK SWITCH AND THIRD...

Page 18: ...uring 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 J HOOD THERMAL CUT OUT TEST 1 Disconnect the...

Page 19: ...duct R 5 Disconnect the leads to the primary of the power transformer 6 Ensure that these leads remain isolated from other components and oven chassis by using insulation tape 1 Key Unit NOTE 1 Check...

Page 20: ...en 3 To discharge high voltage capacitor wait for 60 seconds 4 Remove the control panel assembly 5 If the display fails to clear when the STOP CLEAR pad is depressed first verify the flat ribbon cable...

Page 21: ...TAGE CONNECTED COMPONENTS RY1 Approx 26 6V D C Oven lamp Fan motor Turntable motor RY2 COOK Approx 26 0V D C Power transformer RY3 Approx 26 6V D C Hood motor RY4 Approx 26 6V D C Hood motor RY5 Appro...

Page 22: ...inished 1 Disconnect the power supply cord and then remove outer case Refer to procedure of HOOD EXHAUST LOUVER REMOVAL REMOVAL OF OVEN FROM WALL and OUTER CASE REMOVAL 2 Open the door and block it op...

Page 23: ...etween source and source Open Circuit Between load and source Short Circuit Between load and source Short Circuit If incorrect readings are obtained replace the noise filter 6 Reconnect all leads remo...

Page 24: ...K once the POWER LEVEL pad twice closer the door touch the START pad once open the door touch the number pad 4 once closer door then touch START Now the oven is in the sensor cooking condition and AH2...

Page 25: ...seconds push plunger of select switch for more than 3 seconds This condition is same as judgement by AH sensor 9 4 After approximately 3 seconds the display shows X X X X which is the time for detect...

Page 26: ...n in such a way as to change the resistance values in parallel with R98 R102 of IC2 Changing the resistance values results in that there is the same potential at both F 3 terminal of the absolute humi...

Page 27: ...wing conditions exist 1 Door does not close firmly 2 Door hinge support or latch hook is damaged 3 The door gasket or seal is damaged 4 The door is bent or warped 5 There are defective parts in the do...

Page 28: ...cabinet 10 Now the power supply cord is free CAUTION 1 Disconnect oven from power supply before removing outer case 2 Discharge the high voltage capacitor before touching any oven components or wiring...

Page 29: ...plate the oven cavity front flange and the fan duct And remove the hood intake duct R 5 Disconnect the high voltage wire lead with high voltage rectifier from the magnetron 6 Disconnect filament lead...

Page 30: ...EMOVAL 5 Disconnect the wire leads from the temperature fuse Magnetron 6 Remove the one 1 screw holding the temperature fuse Magnetron to the fan duct 7 Now the temperature fuse Magnetron is free COOL...

Page 31: ...block it open 3 To discharge the high voltage capacitor wait for 60 seconds 4 Push the lever of positive lock connector 5 Pull down on the positive lock connector CAUTION When connecting the positive...

Page 32: ...ove outer case Refer to procedure of RemovalofOvenfromWall and OutercaseRemoval 2 Open the door and block it open 3 Discharge high voltage capacitor 4 Remove the control panel assembly referring to th...

Page 33: ...door hinge pin 3 Shut the door close the contacts of interlock switches 4 Make sure upper and lower oven hinges are inserted into the upper an lower door hinge pins 5 Make sure the door is parallel wi...

Page 34: ...0 Now choke cover is free from door panel and door frame NOTE When carrying out any repair to the door do not bend or warp the slit choke tabs on the door panel assembly to prevent microwave leakage D...

Page 35: ...C COM COM MONITOR SWITCH FUSE HOLDER GRN RED N O COM DOOR SENSING SWITCH RY1 N O RY1 COM RY2 N O RY2 COM HOOD FAN MOTOR 1 2 3 4 5 6 WHT RED YLW BLU BLK WHT RED YLW BLU BLK 1 2 RED GRN 1 2 3 4 5 YLW B...

Page 36: ...43 DMOR200SS NOTES...

Page 37: ...l system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without prior written permission of the publisher COPYRIGHT 2009 BY VIKING ALL RIGHTS RESE...

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