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Menumaster DECS11MA, Руководство по обслуживанию

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Menumaster DECS11MA Скачать руководство пользователя страница 24

5-8

CAUTIONS

1. DISCONNECT THE POWER SUPPLY CORD FROM THE OUTLET WHENEVER REMOVING THE

OUTER CASE FROM THE UNIT. PROCEED WITH THE TEST ONLY AFTER DISCHARGING THE HIGH
VOLTAGE CAPACITOR AND REMOVING THE WIRE LEADS FROM THE PRIMARY WINDING OF THE
HIGH VOLTAGE TRANSFORMER. (SEE PAGE 2-1)

2. ALL OPERATIONAL CHECKS WITH MICROWAVE ENERGY MUST BE DONE WITH A LOAD (1 LITER

OF WATER IN CONTAINER) IN THE OVEN.

COMPONENTS

TEST PROCEDURE

RESULTS

HIGH VOLTAGE
TRANSFORMER
(Wire leads removed)

MAGNETRON
(Wire leads removed)

1. Measure the resistance. 

(Ohm-meter scale: Rx1 and Rx100)
•  Primary winding
•  Secondary winding
•  Filament winding

2. Measure the resistance. 

(Ohm-meter scale: Rx1000) 
• Primary winding to ground 
• Filament winding to ground

1. Measure the resistance. 

(Ohm-meter scale: Rx1)
• Filament terminal

2. Measure the resistance.

(Ohm-meter scale: Rx1000) 
• Filament to chassis

Approx.: 1.81 ~ 2.4 ohm
Approx.: 110 ~ 125 ohm
Less than: 1 ohm

Normal: Infinite
Normal: Infinite

Normal: Less than 1 ohm

Normal: Infinite

FILAMENT
WINDING

SECONDARY
TERMINAL

 PRIMARY
TERMINAL

COMPONENT TEST PROCEDURE

Содержание DECS11MA

Страница 1: ...Microwave Oven Service Manual DECS11MA DES11EA DFS11G DFS11EA UCS11MA US11EA UFS11EA CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL...

Страница 2: ...ration 2 proper door closing 3 seal and sealing surfaces arcing wear and other damage 4 damage to or loosening of hinges and latches 5 evidence of dropping or abuse C Before turning on microwave power...

Страница 3: ...GRAMMING 4 7 SCHEMATIC DIAGRAM 4 9 CIRCUIT DESCRIPTION 4 10 SERVICE INFORMATION 5 1 TOOLS AND MEASURING INSTRUMENTS 5 1 MICROWAVE LEAKAGE TEST 5 1 MEASUREMENT OF MICROWAVE POWER OUTPUT 5 3 DISASSEMBLY...

Страница 4: ...30 Volts AC 50 Hz 1 600 Watts Single phase 3 wire grounded 1 100 Watts full microwave power IEC60705 2 450 MHz 2M282 0 60 min 213 4 W x 141 4 H x 177 8 D 141 4 W x 87 8 H x 163 8 D 51 kg 58 kg Touch C...

Страница 5: ...operation of the microwave oven requires that the magnetron be assembled to the waveguide and cavity Never operate the magnetron unless it is properly installed Be sure that the magnetron gasket is pr...

Страница 6: ...o prevent interference 8 Do not touch the front glass during or after cooking of the Grill and Combination mode This glass is very hot during heater operating 9 Do not operate the oven at microwave an...

Страница 7: ...ter times for Manual Time Entry cooking HOLD 0 Use to select power level Oven can heat at full or reduced power If oven power level is set to 0 oven does not heat for programmed time If no power level...

Страница 8: ...cooking Use to select power level Oven can heat at full or reduced power If oven power level is set to 0 oven does not heat for programmed time If no power level is selected oven operates at 100 powe...

Страница 9: ...will not glow Pads Use to enter cooking time Use to begin heating with preprogrammed times and power levels Use to select power level Oven can heat at full or reduced power Use to start Manual Time En...

Страница 10: ...Time Entry cooking cooking Use to select power level Oven can heat at full or reduced power If oven power level is set to 0 oven does not heat for programmed time If no power level is selected oven op...

Страница 11: ...tages displays COOK shows when oven is operating 20 indicates the microwave power level used If power level does not show oven is heating at 100 power Cooking Displays Cooking Displays Cooking Display...

Страница 12: ...pad Example press 18 sec QTY 2X QTY 2X 1 2 3 4 5 6 7 8 9 0 10 sec 20 sec 30 sec 45 sec 1 min 1 30 min 2 min 3 min 4 min 5 min 01 02 03 04 05 06 07 08 09 10 Pads Pads Pads Heating Times Heating Times H...

Страница 13: ...n oven memory Repeat step 3 6 to program additional pads 7 Press RESET pad or close oven door to exit programming mode Multiple Heating Stages Follow instructions below to program oven to perform 3 co...

Страница 14: ...minates beep Sets volume to low Sets volume to medium Sets volume to high 3 Key Beep OP 30 OP 31 Prevents beep when pad is pressed Allows beep when pad is pressed 4 Keyboard Enable Window OP 40 OP 41...

Страница 15: ...SCHEMATIC DIAGRAM 4 9...

Страница 16: ...volts AC is generated in the secondary of the high voltage transformer which is increased by the action of the high voltage diode and charging of the high voltage capacitor The negative 4 000 Volts DC...

Страница 17: ...nt openings for microwave leakage Check for microwave leakage after every servicing The power density of the microwave radiation leakage emitted by the microwave oven should not exceed 4 mW cm2 Always...

Страница 18: ...test probe must be removed no faster than 1 inch sec 2 5 cm sec along the shaded area otherwise a false reading may result The test probe must be held with the grip portion of the handle A false read...

Страница 19: ...er output P in watts is calculated from the following formula 5 3 CERAMIC PLATE WATER LOAD MEASUREMENT OF MICROWAVE POWER OUTPUT P DISASSEMBLY AND ADJUSTMENT is measured while the microwave generator...

Страница 20: ...er replacing the door be sure to check that the primary switch monitor switch and secondary switch operate normally 2 After replacing the door check for microwave energy leakage with a survey meter Mi...

Страница 21: ...or microwave leakage with a survey meter around the Microwave energy must be below the limit of 5 mW cm2 With a 275 ml water load Make sure that gasket is rigidly attached to the magnetron To prevent...

Страница 22: ...owave activity when the door is opened during cooking and thus to prevent the danger resulting from the microwave leakage 2 MOUNTING OF THE PRIMARY MONITOR SECONDARY SWITCHES TO THE LATCH BOARD 3 INST...

Страница 23: ...door is closed meter should indicate a closed circuit When the secondary switch operation is abnormal make the necessary adjustment or replace the switch using only the same type of switch C MONITOR S...

Страница 24: ...ESULTS HIGH VOLTAGE TRANSFORMER Wire leads removed MAGNETRON Wire leads removed 1 Measure the resistance Ohm meter scale Rx1 and Rx100 Primary winding Secondary winding Filament winding 2 Measure the...

Страница 25: ...scale Rx10000 Normal Momentarily indicates several ohms and then gradually returns to infinite Normal Infinite Normal Infinite Abnormal Continuity Normal Continuity Abnormal Infinite NOTE When testin...

Страница 26: ...THE UNIT IS SERVICED FOR ANY REASON MAKE SURE THE WIRE LEADS ARE IN THE CORRECT POSITION WHEN REMOVING THE WIRE LEADS FROM THE PARTS BE SURE TO GRASP THE CONNECTOR NOT THE WIRES Relay 2 FAN MOTOR Wir...

Страница 27: ...f cookware with metallic trimming CAUSE REMEDY This may be cause incomplete connect to H V transformer TROUBLE SHOOTING WHEN YOU GET A COMPLAINT FROM YOUR CUSTOMER EVALUATE THE COMPLAINT CAREFULLY IF...

Страница 28: ...ROUBLE 1 The following visual conditions indicate a probable defective control circuit 1 Incomplete segments Segment missing Partial segment missing Digit flickering NOTE Slight flickering is normal 2...

Страница 29: ...on defective fuse only Fuse blows again Defective high volt age transformer Replace high volt age transformer Disconnect one side of the wire lead connected from transformer to the high voltage capaci...

Страница 30: ...n Replace magnetron Decrease in power source voltage with load Suggest customer contact local electric power utility co or qualified electrician Check the power source voltage CONDITION CHECK RESULT C...

Страница 31: ...tor Replace high voltage capacitor Normal Check high vol tage capacitor Abnormal Defective high voltage diode Replace high voltage diode Normal Check high vol tage diode Abnormal Defective magnetron R...

Страница 32: ...DOOR PARTS CONTROL PANEL PARTS LATCH BOARD PARTS BASE PLATE PARTS OVEN CAVITY PARTS INTERIOR PARTS 6 1 EXPLODED VIEW INTRODUCTION MODEL DFS11G DECS11MA UCS11MA EV...

Страница 33: ...MODEL DES11EA DFS11EA US11EA UFS11EA DOOR PARTS CONTROL PANEL PARTS LATCH BOARD PARTS BASE PLATE PARTS INTERIOR PARTS OVEN CAVITY PARTS INTRODUCTION EV 6 2...

Страница 34: ...EV 6 3 1386 1384 W136 1006 1007 W108 W105 1009 W207 W206 1385 1004 1005 1013 1000 1002 DOOR PARTS MODEL DFS11G DECS11MA UCS11MA DES11EA DFS11EA US11EA UFS11EA...

Страница 35: ...6 4 2012 2400 2005 2006 2381 2000 W130 W102 CONTROL PANEL PARTS MODEL DFS11G EV...

Страница 36: ...6 5 2012 2400 2005 2006 2381 W130 2000 2002 W102 CONTROL PANEL PARTS MODEL DECS11MA UCS11MA EV...

Страница 37: ...2004 2381 2000 2002 2006 W130 W102 CONTROL PANEL PARTS MODEL DES11EA US11EA 6 6 EV...

Страница 38: ...6 7 2004 2006 2381 W130 W102 2000 CONTROL PANEL PARTS MODEL DFS11EA UFS11EA EV...

Страница 39: ...6 8 7037 9000 3001 5045 W121 W109 W158 W121 W109 3009 W105 W109 3004 5024 W109 W108 OVEN CAVITY PARTS MODEL DFS11G DECS11MA UCS11MA DES11EA DFS11EA US11EA UFS11EA EV...

Страница 40: ...6 9 4003 4000 4009 W102 W117 4002 4004 4008 4001 LATCH BOARD PARTS MODEL DFS11G DECS11MA UCS11MA DES11EA DFS11EA US11EA UFS11EA EV...

Страница 41: ...09A 5000 Discord original for parts supplied Change pieces simultaneously After Before W101 6021W3B001L 6851W1A001G 5013 3007 W108 W109 5104 W109 5001 5051 5302 W109 5019 9000 5203 3381 3028 W101 5008...

Страница 42: ...6 11 6001 6000 W121 W108 6013 W121 3026 3901 3902 W162 BASE PLATE PARTS MODEL DFS11G DECS11MA UCS11MA DES11EA DFS11EA US11EA UFS11EA EV...

Страница 43: ...7 1 SCHEMATIC DIAGRAM OF P C B...

Страница 44: ...7 2 PRINTED CIRCUIT BOARD...

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