DCS MO-24SS Technical Service Manual

Text of DCS MO-24SS User Guide:

• DCS MO-24SS, 7 SENSOR COOKING CONDITION Using the SENSOR function, food is cooked without figuring time, power level or quantity. When the oven senses enough steam from the food, it relays the information to its microprocessor which will calculate the remaining cooking time and power level needed for best results. When the food is cooked, water vapor is developed. the sensor "senses" the vapor and its resistance increase 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. An example of

• 6 OPERATION 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.) When oven is plugged in, 120 volts A.C. is supplied to the control unit. (Figure O-1). 1. The display will show flas

• DCS MO-24SS, 2 MICROWAVE MEASUREMENT PROCEDURE A. Requirements: 1) Microwave leakage limit (Power density limit): The power density of microwave radiation emitted by a microwave oven should not exceed 1mW/cm 2 at any point 5cm or more from the external surface of the oven, measured prior to acquisition by a purchaser, and thereafter (through the useful life of the oven), 5 mW/cm 2 at any point 5cm or more from the external surface of the oven. 2) Safety interlock switches Primary interlock relay and door sensing switch shall prevent microwave radiation emission in excess of the requirement as above mentioned, secondary interlock switc

• DCS MO-24SS, 31 3. Secure latch hook (with two (2) mounting screws) to oven flange. 4. Make sure that the monitor switch is operating properly and check continuity of the monitor circuit. Refer to chapter "Test Procedure" and Adjustment procedure. DOOR SENSING SWITCH/SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH ADJUSTMENT 1. Disconnect the power supply cord, and then remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. If the door sensing switch, secondary interlock switch and monitor s

• DCS MO-24SS, 12 B POWER TRANSFORMER TEST 1. Disconnect the power supply cord, and then remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. 4. Disconnect the primary input terminals and measure the resistance of the transformer with an ohmmeter. Check for continuity of the coils with an ohmmeter. On the R x 1 scale, the resistance of the primary coil should be less than 1 ohm and the resistance of the high voltage coil should be approximately 90 ohms; the resistance of the filament c

• 17 COMPU DEFROST TEST WARNING : The oven should be fully assembled before following procedure. (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 and touch the number pad 5 twice. Then touch the start pad. (3) The oven is in Compu Defrost cooking condition. (4) The oven will operate as follows

• DCS MO-24SS, 3 DCS is a leading manufacturer of premium quality cooking and speciality appliances for both residential and professional use. We are proud of our reputation for quality and our commitment to customer satisfaction. We have set high standards for ourselves along with our network of independent Part Distributors and Service Agencies. As an Authorized Part Distributor or Authorized Service Agency we are counting on you to represent our company in a professional manner. We are here to help support you should you need help. Our technic

• DCS MO-24SS, 1 WARNING TO SERVICE 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. (Example) High Voltage Capacitor, High Voltage Power Trans- former, Magnetron, High Voltage Rectifier Assem- bly, High Voltage Harness etc.. Read the Service Manual carefully and follow all instructions. Before Servicing 1. Disconnect the power supply cord , and then remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. WARNING:RISK OF ELECTRIC SHOCK. DISCHARGE THE HIGH-VOLTAGE CAPACITOR BEFORE SERVICING. The high-voltage capacito

• DCS MO-24SS, 35 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 CPU Unit Circuit C-10 C-9 C-1 C-8 C-12 F-1 F-2 F-3 G 1 G 2 G 3 G 4 G 5 G 6 G 7 G 8 G 9 G10 G11 G12 G13 G14 C-11 C-3 C-4 C-2 CN-C GND INT VC LED VR VA OVEN LAMP TURNTABLE MOTOR FAN MOTOR BUZZERR MICRO NC DOOR SENSING SWITCH NC AH SENSOR NOTE : IF NOT SPECIFIED 1/10W ± 5% CN-F CN-G Q20 DTA143EAK Q30 DTA143EAK R90 330 1w IC-2 BA4558 CF1 CST4.00MGW IC-1 IXA098DR 7237 36 1 144 109 108 73 R94 4.7k R69 15k R97 15k R41 15k R92 1.8kF R93 360kF R91 3.32kD R96 3.57kD R40 4.7k R74 270k 8 7 6 5 1 2 3 4 R95 15k Q21 DTA123JKA D20 MA152WA D90 MA152WA Q

• DCS MO-24SS, 13 TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST 1. Disconnect the power supply cord, and then remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. 4. 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. Checking with a high ohm scale, if the high voltage capacitor is normal, the meter will indicate continuity for a short time and should indicate a

• DCS MO-24SS, 27 To remove the outer case, proceed as follows. 1. Disconnect the power supply cord. 2. Open the oven door and block it open. 3. Remove the two (2) screws from the lower portion of the rear cabinet using a T20H Torx type or GTXH20-100 screw driver. 4. Remove the remaining two (2) screws from rear and four (4) screws along the right side of outer case. 5. Slide the entire outer case back out about 1 inch (3 cm) to free it from retaining clips on the cavity face plate. 6. Lift entire outer case from the unit. Microwave ovens contain circuitry capable of producing very high voltage and current, contact with following parts may result in severe, possibly fatal, electric shock. (Example) High

• 33 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-1. Pictorial Diagram HIGH VOLTAGE CAPACITOR HIGH VOLTAGE WIRE A H.V. RECTIFIER POWER SUPPLY CORD 120V 60Hz HIGH VOLTAGE COMPONENTS OVEN LAMP AND SOCKET MAGNETRON COM. MONITOR SWITCH COM. N.O. N.C. DOOR SENSING SWITCH SECONDARY INTERLOCK SWITCH TURNTABLE MOTOR NOTE: Hot (ORG) wire must be connected to the te

• DCS MO-24SS, 14 TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST 1. Disconnect the power supply cord, and then remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. 4. Before performing this test, make sure that the secondary interlock switch and the primary interlock relay are operating properly, according to the above Switch Test Procedure. Disconnect the wire lead from the monitor switch (COM) terminal. Check the monitor switch operation by using the ohmmeter as follows. When the door is open, the meter should indicate a closed circuit. When the monitor switch actuator is pushed by a screw driver through the lower latch hole on t

• DCS MO-24SS, 19 TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST Checking the initial sensor cooking condition Warning: The oven should be fully assembled before following procedure. 1) The oven should be plugged in at least two minutes before sensor cooking. 2) Room temperature should not exceed 95 o F(35 o C). 3) The unit should not be installed in any area where heat and steam are generated. The unit should not be installed for example, next to conventional surface unit. Refer to the "INSTALLATION INSTRUCTIONS" of the operational manual. (4) Exhaust vents are provided on the back of the unit for proper cooling and air flo

• 40 REF. NO. PART NO. DESCRIPTION Q'TY MISCELLANEOUS 6- 1 19103-01 Stop switch harness 1 6- 2 19103-02 Main wire harness 1 6- 3 19142 Cavity hole cover 1 6- 4 19101 Turntable support 1 6- 5 19117 Turntable tray 1 6- 6 19139 Monitor caution label 1 6- 7 19140 DHHS/Screw caution label 1 6- 8 19141 Operation manual 1 6- 9 19132 High

• DCS MO-24SS, 38 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 DOOR PARTS MISCELLANEOUS 5-1 5-1-2 5-1-1 5-3 5-4 5-2 Actual wire harness may be different from illustration. 6-9 6-2 6-1 3-3 3-5 3-2 3-4 3-6 3-6 3-6 3-1

• DCS MO-24SS, 37 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 OVEN AND CABINET PARTS 2-3 4-7 6-7 1-5 4-6 4-10 7-10 7-5 1-15 4-8 6-3 6-5 6-4 2-1 7-10 1-12 4-9 7-2 7-2 4-3 1-13 1-10 7-3 7-7 7-10 1-9 7-7 7-7 4-2 7-4 1-11 1-3 1-4 7-1 1-8 1-8 4-4 7-1 4-1 1-1 1-2 2-2 2-2 2-2 2-2 7-4 7-4 4-11 7-4 6-6 1-7 1-6 4-5 1-14 7-9 7-6 7-9 7-8 7-8 7-6

• DCS MO-24SS, 23 16.7 msec. H : GND L : -5V 34 INT0 IN Signal synchronized with commercial power source frequency. This is the basic timing for time processing of LSI. 35 P07 OUT Key strobe signal. Signal applied to touch-key section. A pulse signal is input to AIN7, P14, P15, P16 and P17 terminal while one of G1 line keys on key matrix is touched. 36 P06 OUT Key strobe signal. Signal applied to touch-key section. A pulse signal is input to AIN7, P14, P15, P16 and P17 terminal while one of G2 line keys on key matrix is touched. 37 P05 OUT Key strobe signal. Signal applied to touch-key section. A pulse signal is input to AIN7, P14, P15, P16 and P17 terminal

• DCS MO-24SS, 41 PACKING AND ACCESSORIES Non-replaceable items. DOOR PROTECTION SHEET PLASTIC BAG PACKING CASE TOP PAD ASSEMBLY I NT OTHE OVE N CAVITY 6-5 TURNTABLE TRAY 6-8 OPERATION MANUAL TRAY PACK BOTTOM PAD ASSEMBLY TRAY HOLDER

• DCS MO-24SS, 20 CHECKING CONTROL UNIT (1) Disconnect the power supply cord, and then remove outer case. (2) Open the door and block it open. (3) Discharge high voltage capacitor. (4) Disconnect the sensor connector that is mounted to control panel. (5) Then connect the dummy resistor circuit (see fig.) to the sensor connector of control panel. (6) Disconnect the leads to the primary of power transformer. (7) Ensure that these leads remain isolated from other components and oven chassis by using insulation tape. (8) After that procedure, re-connect the power supply cord. (9) Check the sensor cook operation proceed as follows: 9-1 Touch Time

• DCS MO-24SS, 11 A MAGNETRON ASSEMBLY TEST 1. Disconnect the power supply cord, and then remove outer case. 2. Open the door and block it open. 3. Discharge high voltage capacitor. Home fuse or circuit breaker blows when power cord is plugged into wall receptacle Monitor fuse blows when power cord is plugged into wall receptacle. All letters and indicators do not appear in display when power cord is first plugged into wall outlet. Display does not operate properly when STOP/CLEAR key is touched. (Buzzer should sound and ":" or time of day should appear in display.) Oven lamp does not light when door is opened. Oven lamp do

• 34 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-2 Power Unit Circuit + – + – + – A 1 CN-A R4 27 D5 T1 1 3 4 D1 D3 D2 D4 6 ab c d VRS1 (J1) D7D8 1SS270A1SS270A 10G471K C1 0.1µ/50v C3 0.1µ/50v ZD1 HZ16-1 C5 10µ/35v C2 1000µ/35v C4 10µ/35v R1 2.4k 1SS270A1SS270A D1-D4 11ES1 D6 R5 4.7k R2 680 1/2w R3 510 1/2w R6 3.3k Q2 2SB1238 SP1 PKM22EPT Q1 2SB1238 RY1 RY2 Q3 KRC243

• DCS MO-24SS, 4 ITEM DESCRIPTION Power Requirements 120 Volts / 13.8 Amperes/1650Watts 60 Hertz Single phase, 3 wire grounded Power Output 1200 watts (IEC-705 TEST PROCEDURE) Operating frequency of 2450MHz Case Dimensions Width 24" Height 13-3/8" Depth 19-1/8" Cooking Cavity Dimensions Width 17-3/8" 2.0 Cubic Feet Height 10-1/2" Depth 18-5/8" Tray Size 15" Control Complement Touch Control System Clock ( 1:00 - 12:59 ) Timer (0 - 99 min. 99 seconds) Microwave Power for Variable Cooking Repetition Rate; P-HI ............

• DCS MO-24SS, 18 1) Disconnect the power supply cord, and then remove outer case. 2) Open the door and block it open. 3) Discharge high voltage capacitor. 4) Follow the troubleshooting guide given below for repair. STEPS OCCURRENCE CAUSE OR CORRECTION 1 Only pattern at "a" is broken. *Insert jumper wire J1 and solder. 2 Pattern at "a" and "b" are broken. *Insert the coil RCILF2003YAZZ between "c" and "d". 5) Make a visual inspection of the varistor. Check for burned damage and examine the transformer with a tester for the presence of layer short-circuit (check the primary coil resistance which is approximately 210 ohm ± 15%). If any

• DCS MO-24SS, 39 REF. NO. PART NO. DESCRIPTION Q'TY CODE PARTS LIST Note: The parts marked “ ∆∆ ∆∆ ∆” may cause undue microwave exposure. The parts marked “*” are used in voltage more than 250V. ∗∆ ∗∆ ∗ ELECTRIC PARTS 1- 1 19133 High voltage capacitor 1 AQ 1- 2 19099 High voltage rectifier assembly 1 AM 1- 3 19130 Oven lamp socket 1 AE 1- 4 19134 Oven lamp 1 AE 1- 5 19136 Fan motor 1 AR 1- 6 19127 Fuse holder 1 AD 1- 7 19098 Monitor switch (V-16G-2C25) and fuse assembly (20A 250V AC) 1AF 1- 8 19131 Se

• DCS MO-24SS, 5 adapter properly grounded and polarized. If the extension cord must be used, it should be a 3-wire, 15 amp. or higher rated cord. Do not drape over a countertop or table where it can be pulled on by children or tripped over accidentally. CAUTION: DO NOT UNDER ANY CIRCUMSTANCES CUT OR RE- MOVE THE ROUND GROUNDING PRONG FROM THIS PLUG. OVEN DIAGRAM 1. One touch door open button. Push to open door. 2. Door latches. The oven will not operate unless the door is securely closed. 3. Removable turntable

More Instructions:

	DCS MO-24SS Use and care manual 17-10-2023 32	DOWNLOAD
	DCS MO-24SS Specifications 02-05-2023 2	DOWNLOAD
	DCS MO-24SS Use and care manual 04-08-2023 32	DOWNLOAD

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