VikingメーカーVMOC205SSの使用説明書/サービス説明書
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DMOC205SS VMOC205SS In the interest of user-safety the oven should be restored to its original condition and only parts identical to those specifie d should be used. WARNING TO SERVICE PERSONNEL: Microwave ovens contain circuitry capable of producing very high voltage and current.
DMOC205SS VMOC205SS PRECA UTIONS T O BE OBSER VED BEFORE AND DURING SER VICING T O A V OID POSSIBLE EXPOSURE T O EXCESSIVE MICRO W A VE ENERGY (a) Do not operate or allow the oven to be operated with the door open.
1 DMOC205SS VMOC205SS Notes.
2 DMOC205SS VMOC205SS W ARNING T O SER VICE PERSONNEL Microwave ovens contain circuitry capable of pro- ducing very high voltage and current, contact with following parts may result in a severe, possibly fatal, electrical shock.
3 DMOC205SS VMOC205SS MICR O W A VE MEASUREMENT PROCEDURE (CANAD A) After adjustment of the door switches are completed individually or collectively, switch test and microwave leakage test must be per.
4 DMOC205SS VMOC205SS MICR O W A VE MEASUREMENT PR OCEDURE (USA) A. Requirements: 1) Microwave leakage limit (Power density limit): The power density of microwave radiation emitted by a microwave oven.
5 DMOC205SS VMOC205SS VIKING RANGE CORPORA TION 111 Front St., Greenwood, MS 38930 Tel: (888) 845-4641 SER VICE MANU AL VIKING RANGE CORPORA TION MICROWAVE OVENS FOREWORD This Manual has been prepared to provide Viking Service Personnel with Operation and Service Information for the Viking Microwave Ovens, DMOC205SS, VMOC205SS.
6 DMOC205SS VMOC205SS SPECIFICA TION ITEM DESCRIPTION Power Requirements 120 Volts 13.0 Amperes (Microwave) / 13.0 Amperes (Convection) 60 Hertz / Single phase, 3 wire grounded Power Output 900 watts .
7 DMOC205SS VMOC205SS Electrical Requirements The electrical requirements are a 115 -120 volt 60 Hz, AC only, 15 or more amp. fused electrical supply. It is recommended that a separate circuit serving only this appliance be provided. When installing this appliance, observe all applicable codes and ordinances.
8 DMOC205SS VMOC205SS OPERA TION DESCRIPTION OF OPERATING SEQUENCE The following is a description of component functions during oven operation. OFF CONDITION Closing the door activates the door sensing switch and secondary interlock switch. (In this condition, the monitor switch contacts are opened.
9 DMOC205SS VMOC205SS CONVECTION COOKING CONDITION PREHEATING CONDITION Program desired convection temperature by touching the CONVECTION pad and the Temperature pad.
10 DMOC205SS VMOC205SS The sensor “senses” the vapor and its resistance increases gradually. When the resistance reaches the value set according to the menu, supplementary cooking is started. The time of supplementary cooking is determined by experi- ment with each food category and inputted into the LSI.
11 DMOC205SS VMOC205SS Figure O-2. Oven Schematic-Microwave Cooking Condition IMPORTANT: During sensor cooking operation, the fire sensing op- eration sequence will not begin until the AH sensor has SCHEMATIC NOTE: CONDITION OF OVEN 1. DOOR CLOSED. 2.
12 DMOC205SS VMOC205SS SCHEMATIC NOTE: CONDITION OF OVEN 1. DOOR CLOSED. 2. CONVECTION PAD TOUCHED. 3. DESIRED TEMP. TOUCHED. 4. COOKING TIME PROGRAMMED. 5. “START” PAD TOUCHED. SCHEMATIC NOTE: CONDITION OF OVEN 1. DOOR CLOSED. 2. MIX COOKING PAD TOUCHED.
13 DMOC205SS VMOC205SS THIRD DOOR SWITCH The switch is activated by the latch heads, while the door is closed. When the door is opened, the switch interrupt the circuit to the power transformer. This switch prevents power transformer engaging and microwave when the door opened.
14 DMOC205SS VMOC205SS TR OUBLESHOOTING GUIDE When troubleshooting the microwave oven, it is helpful to follow the Sequence of Operation in performing the checks. Many of the possible causes of trouble will require that a specific test be performed. These tests are given a procedure letter whic h will be found in the “Test Procedure”section.
15 DMOC205SS VMOC205SS A MAGNETRON B POWER TRANSFORMER C H.V. RECTIFIER ASSEMBLY D HIGH VOLTAGE CAPACITOR E PRIMARY INTERLOCK SWITCH F SECONDARY INTERLOCK SYSTEM G MONITOR SWITCH H MONITOR FUSE E THIR.
16 DMOC205SS VMOC205SS TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST HIGH VOLTAGES ARE PRESENT DURING THE COOK CYCLE, SO EXTREME CAUTION SHOULD BE OBSERVED. DISCHARGE THE HIGH VOLTAGE CAPACITOR BEFORE TOUCHING ANY OVEN COMPONENTS OR WIRING. To test for an open filament, isolate the magnetron from the high voltage circuit.
17 DMOC205SS VMOC205SS If the capacitor is open, no high voltage will be available to the magnetron. Disconnect input leads and check for short or open between the terminals using an ohmmeter.
18 DMOC205SS VMOC205SS Disconnect connector-E from the control unit. Measure the resistance of the thermistor with an ohmmeter. Connect the ohmmeter leads to Pin No’s E-3 and E-4.
19 DMOC205SS VMOC205SS P TOUCH CONTROL PANEL ASSEMBLY TEST The touch control panel consists of circuits including semiconductors such as LSI, ICs, etc. Therefore, unlike conventional microwave ovens, proper maintenance cannot be performed with only a voltmeter and ohmmeter.
20 DMOC205SS VMOC205SS S COMPU DEFROST TEST (1) Place one cup of water in the center of the turntable tray in the oven cavity. (2) Close the door, touch the "DEFROST" pad twice and touch the Number pad "5". And then touch the "START" pad.
21 DMOC205SS VMOC205SS U AH SENSOR TEST Checking the initial sensor cooking condition (1) The oven should be plugged in at least two minutes before sensor cooking. (2) Room temperature should not exceed 95 ο F (35 ο C). (3) The unit should not be installed in any area where heat and steam are generated.
22 DMOC205SS VMOC205SS Plunger NC NO COM COM NO NC R3 R4 R1 R2 1 2 3 F-1 F-2 F-3 To connector (F) on Control Unit. CONNECTOR TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST When the AH sensor is defective (open or short), Error will appear in the display after 16 seconds cleaning time.
23 DMOC205SS VMOC205SS T OUCH CONTR OL P ANEL ASSEMBL Y OUTLINE OF TOUCH CONTROL PANEL The touch control section consists of the following units as shown in the touch control panel circuit. (1) Key Unit (2) Control Unit The principal functions of these units and the signals communicated among them are explained below.
24 DMOC205SS VMOC205SS Pin No. Signal I/ O Description 5 AN7 IN Used for initial balancing of the bridge circuit (absolute humidity sensor). This input is an analog input terminal from the AH sensor circuit, and connected to the A/D converter built into the LSI.
25 DMOC205SS VMOC205SS Pin No. Signal I/ O Description 18 P50 OU T Damper motor relay driving signal. To turn on and off shut-off relay(RY4). 19 P47 OU T Heating element driving signal. To turn on and off shut-off relay(RY3). "L" level during convection cooking; "H" level otherwise.
26 DMOC205SS VMOC205SS Pin No. Signal I/ O Description 37 P23 OU T Segment data signals. The relation between signals and indicators are as follows: Signal Segment Signal Segment Signal Segment Signal Segment P23 ............. P1 P17 ............. P5 P13 .
27 DMOC205SS VMOC205SS (1) Structure of Absolute Humidity Sensor The absolute humidity sensor includes two thermistors as shown in the illustration. One thermistor is housed in the closed vessel filled with dry air while another in the open vessel.
28 DMOC205SS VMOC205SS SERVICING Transistor 2SB910M Transistor DTA123ES KRA101M KRA223M KRC243M 1. Precautions for Handling Electronic Components This unit uses CMOS LSI in the integral part of the circuits. When handling these parts, the following precautions should be strictly followed.
29 DMOC205SS VMOC205SS COMPONENT REPLA CEMENT AND ADJUSTMENT PROCEDURE CAUTION: DISCONNECT OVEN FROM POWER SUPPLY BEFORE REMOVING OUTER CASE. DISCHARGE HIGH VOLTAGE CAPACITOR BEFORE TOUCHING ANY OVEN COMPONENTS OR WIRING AFTER REMOVING OUTER CASE. POWER TRANSFORMER REMOVAL To prevent an electric shock, take the following man- ners.
30 DMOC205SS VMOC205SS POSITIVE LOCK ® CONNECTOR (NO-CASE TYPE) REMOVAL Push the lever of positive lock ® connector. Pull down on the positive lock ® connector. CAUTION: WHEN YOU CONNECTING THE POSITIVE LOCK ® CONNECTORS TO THE TERMINALS, INSTALL THE POSITIVE LOCK ® SO THAT THE LEVER FACES YOU.
31 DMOC205SS VMOC205SS FAN MOTOR REMOVAL HEATER UNIT ASSEMBLY REMOVAL (HEATING ELEMENT/CONVECTION FAN/CONVECTION MOTOR/THERMISTOR) THERMISTOR REMOVAL 1. Disconnect oven from power supply and remove outer case cabinet. 2. Discharge the high voltage capacitor.
32 DMOC205SS VMOC205SS CONTROL PANEL ASSEMBLY AND CONTROL UNIT REMOVAL To remove the control panel, procedure as follows: 1. Disconnect oven from power supply and remove outer case. 2. Discharge high voltage capacitor. 3. Disconnect connector CN-A, CN-E and CN-F from the control unit.
33 DMOC205SS VMOC205SS DOOR REPLACEMENT AND ADJUSTMENT REMOVAL 1. Disconnect oven from power supply and remove the outer case. Remove turntable tray and turntable support from oven cavity. 2. Remove three (3) screws holding lower oven hinge. 3. Remove the lower oven hinge from oven cavity bottom flange.
34 DMOC205SS VMOC205SS 7. Make sure the door is parallel with oven face lines (left and upper side lines) and door latch heads pass through latch holes correctly. 8. Insert the lower oven hinge into oven cavity bottom flange and then engaged the door hinge pin.
35 DMOC205SS VMOC205SS MICR O W A VE MEASUREMENT PROCEDURE Leakage test: Leakage Test with Enclosure Installed. 1. Grasp the probe of the survey instrument and hold it perpendicular to the gap between the door and the body of the oven. 2. Move the probe slowly, not faster than 2.
36 DMOC205SS VMOC205SS Figure S-1. Pictorial Diagram 6 45 1 2 3 6 45 1 2 3 A B C D E F G H A B C D E F G H TURNTABLE MOTOR GRY BRN ORG GRN PNK BLK DAMPER MOTOR COOLING FAN MOTOR PNK RED CONV.
37 DMOC205SS VMOC205SS Figure S-2. Control Panel Circuit 6 45 1 2 3 6 45 1 2 3 A B C D E F G H A B C D E F G H + – + – + – + – + – + – A 9 A 7 A 1 A 3 A 5 E 1 E 2 E 5 E 6 E 3 E 4 F 1 F 2 F 3 N O N O N O COM COM COM VRS1 C1 0.1µ/50v C22 0.
38 DMOC205SS VMOC205SS 6 45 1 2 3 6 45 1 2 3 A B C D E F G H A B C D E F G H Figure S-3. Printed Wiring Board R R 0 1 2 1 31 1 1 1 1 1 65 4 3 2 1 1 135 7 9 45 78 3 3 1 4 58 12 12 12 32 33 64 3 4 6 9 1.
39 DMOC205SS VMOC205SS P AR TS LIST • Refer to "IMPORTANT" described at end of parts list. REF. NO. PART NO. DESCRIPTION Q'TY ELECTRICAL PARTS 1- 1 FACCDA074WRE0 Power supply cord 1 1.
40 DMOC205SS VMOC205SS REF. NO. PART NO. DESCRIPTION Q'TY CODE 4-16 FDUC-A323WRW0 Steam duct assembly 1 A Y 4-17 MCAMPA030WRF0 Damper cam 1 AC 4-18 NSFTTA114WRE0 Damper shaft 1 A B 4-19 FFTA-A034.
41 DMOC205SS VMOC205SS REF. NO. PART NO. DESCRIPTION Q'TY CODE 7-11 XBTWW40P06000 Screw; 4mm x 6mm 7 A A 7-12 XCTSD40P08000 Screw; 4mm x 8mm 7 A A 7-13 LX-NZ0029YBE0 Special nut 1 A A 7-14 XBPSD4.
42 DMOC205SS VMOC205SS OVEN AND CABINET PARTS 6 45 1 2 3 6 45 1 2 3 A B C D E F G H A B C D E F G H 1-10 1-11 7-24 2-1 7-24 1-8 2-6 7-12 7-16 A 7-4 7-24 1 - 19 7-24 4-32 7-19 4-33 4 - 41 4 - 15 7-26 1.
43 DMOC205SS VMOC205SS 6 45 1 2 3 6 45 1 2 3 A B C D E F G H A B C D E F G H CONTROL PANEL PARTS 5-2 5-9 5-1 5 5-8 5-4 5-8 5-8 5-8 5-5 5-3 5-7 5-6 5-10 VMOC205SS DMOC205SS 5-11 7-24 7-24 3-5 3-4 3-7 3-3 3-2 3-2-1 3-6 3-1 3-2-3 3-7 3-2-2 3-9 3-8 Actual wire harness may be different than illustration.
44 DMOC205SS VMOC205SS PACKING AND ACCESSORIES 6 45 1 2 3 6 45 1 2 3 A B C D E F G H A B C D E F G H 4-3 TURNTABLE TRAY 6-9 OPERATION MANUAL 4-2 TURNTABLE SUPPORT TRAY PACKING FOAM DOOR PROTECTION SHEET MICROWAVE OVEN TOP PAD ASSEMBLY PLASTIC BAG TRAY HOLDER BOTTOM PAD ASSEMBLY Not replaceable items.
45 DMOC205SS VMOC205SS NO TES:.
46 DMOC205SS VMOC205SS No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.
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