AMANA LD510 Built In Microwave Oven Owner’s Manual

AMANA LD510 Built In Microwave Oven

SAFETY PRECAUTIONS

• This device is to be serviced only by properly qualified service personnel.
• Consult the service manual for proper service procedures to assure continued safety operation and for precautions to be taken to avoid possible exposure to excessive microwave energy.

PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY

• A) Do not operate or allow the oven to be operated with the door open.
• B) Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source, and make repairs as necessary; (1) interlock operation, (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 for any service test or inspection within the microwave generating compartments, check the magnetron, wave guide or transmission line, and cavity for proper alignment, integrity, and connections.
• D) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation and transmission systems shall be repaired, replaced, or adjusted by procedures described in this manual before the oven is released to the owner.
• E) A microwave leakage check should be performed on each oven prior to release to the owner.

CAUTION
MICROWAVE RADIATION
DO NOT BECOME EXPOSED TO RADIATION FROM THE MICROWAVE GENERATOR OR OTHER PARTS CONDUCTING MICROWAVE ENERGY.

SPECIFICATIONS

• MODEL LD510/ULD510/LD510S/ULD510S
• Power Requirement 230 Volts AC 50 Hz 1,350 Watts (6.3 A)
• Single phase, 3 wire grounded
• Power Output 1000 Watts full microwave power (IEC705)
• Microwave Frequency 2,450 MHz
• Magnetron 2M214 – 39F, 2M218J
• Timer 0 ~ 60 min.
• Outside Dimensions 530 (W) x 322 (H) x 404(0) mm
• Cavity Dimensions 348 (W) x 232 (H) x 373 (D) mm
• Net Weight 17 kg (approx.)
• Shipping weight 19 kg (approx.)
• Control Complement Microwave Power for Variable Cooking
• Power level
  • Max —————- Full power throughout the cooking time
  • Med.-High ———– approx. 80% of Full power
  • Medium ————- approx. 60% of Full power
  • Defrost —– ——– approx. 40% of Full power
  • Low/Warm ———– approx. 20% of Full power
• Name Plate Location
• Accessories Owner’s manual
  • Glass tray
  • Rotating Ring
• This microwave oven is designed for household use only.
• It is not recommended for commercial purposes.

CAUTIONS

Unlike other appliances, the microwave oven is high-voltage and high-current equipment. Though it is free from danger in ordinary use, extreme care should be taken during repair.

• DO NOT operate on a 2-wire extension cord during repair and use.

• NEVER TOUCH any oven components or wiring during operation.

• BEFORE TOUCHING any parts of the oven, always remove the power plug from the outlet.

• For about 30 seconds after the oven stops, an electric charge remains in the high voltage capacitor. When replacing or checking, you must discharge the high voltage capacitor by shorting across the two terminals with an insulated screwdriver.

• Remove your watches whenever working close to or replacing the Magnetron.

• DO NOT touch any parts of the control panel circuit. A resulting static electric discharge may damage this P.C.B.

• NEVER operate the oven with no load.

• NEVER injure the door seal and front plate of the oven cavity.

• NEVER put iron tools on the magnetron.

• NEVER put anything into the latch hole and the interlock switches area.

MICROWAVE RADIATION
Personnel should not be exposed to the microwave energy which may radiate from the magnetron or other microwave generating device if it is improperly used or connection. All input and output microwave connections, waveguide, flange and gasket must be secure never operate the device without a microwave energy absorbing load attached. Never look into an open waveguide or antenna while the device is energized.

• Proper 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 properly installed around the dome of the tube whenever installing the magnetron.

THE OVEN IS TO BE SERVICED ONLY BY PROPERLY QUALIFIED SERVICE PERSONNEL.

INSTALLATIONS

BEFORE YOU BEGIN, READ THE FOLLOWING INSTRUCTIONS COMPLETELY AND CAREFULLY.

INSTALLING

1. Empty the microwave oven and clean inside it with a soft, damp cloth. Check for damage such as misaligned door, damage around the door or dents inside the cavity or on the exterior.
2. Put the oven on a counter, table, or shelf that is strong enough to hold the oven and the food and utensils you put in it. (The control panel side of the oven is the heavy side. Use care when handling.)
3. Do not block the vent and the air intake openings. Blocking vent or air intake openings can cause damage to the oven and poor cooking results. Make sure the microwave oven le s are in lace to ensure proper air flow.
4. The oven should not be installed in any area where heat and steam are enerated because the ma damage the electronic or mechanical parts of the unit. Do not install the oven next to a conventional surface unit or above a conventional wall oven.
5. Use microwave oven in an ambient temperature less than 104°F(40°C).
6. Place the microwave oven on a sturdy and flat surface at least 10 cm(4 inches) from the wall.
7. Place the microwave oven as far away as possible from TV, RADIO, COMPUTER, etc., to prevent interference.

EARTHING INSTRUCTIONS
This microwave oven is designed to be used in a fully earthed condition. It is imperative, therefore, to make sure it is properly earthed before servicing

WARNING: THIS APPLIANCE MUST BE EARTHED.

IMPORTANT

• As the colors of the wires In the mains lead of this appliance may not correspond with the colored markings 1dent1fy1ng the terminals In your plug, proceed as follows.
• The wire which is colored green-and-yellow must be connected to the terminal in the plug which is marked with the letter E or by the earth symbol (¼) or colored green or green-and-yellow.
• The wire which is colored blue must be connected to the terminal in the plug which is marked with the letter N or colored black.
• The wire which is colored brown must be connected to the terminal in the plug which is marked with the letter L or colored red.

FEATURES

CONTROL PANELS

Pads

Display

Some items in display can be seen but will not glow.

Cooking Displays

• Shows when power is connected to oven. Open and close door to clear.
• READY shows when oven control will accept entries. Appears after oven door is opened and closed.
• 00:00 shows heating time. When more than 1 heating stage is programmed, total time for all stages 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.

Programming Displays

• Indicates programming mode. See Programming section of manual for programming procedure.
• Indicates programming user options mode. See User Options section of manual for programming procedure.

OPERATION

CAUTION: To avoid damaging oven, only heat in microwave oven when turntable is in place.

Interrupting Operation

• Open oven door to interrupt operation. Oven fan continues to operate. Close door and press STARTpad to resume oven operation.
• Press STOP/RESET pad to interrupt operation. Display continues to show countdown time. Press STOP/RESET AH, pad to resume oven operation and countdown timing.

Canceling Mistakes

• If oven is operating, press STOPIRESETpad once to stop oven, then again to clear display.
• If oven door is open and time shows in display, close oven door and press STOP/RESET pad to clear display.

Operating Preprogrammed Pads
All models has 10 pre-programmed number pads. Model LD51 OS, ULD51 OS has 20 programmable pads (01-20). Instructions are written for factory programmed ovens. Ovens that are reprogrammed can respond below.

1. Open oven door, place food in oven, and close ovendoor.
   • If pad is not pressed in 30 seconds, open and close oven door again.
2. Press desired number pad.
   • For some models press 2 digits (01-20).
   • Oven operates and time counts down.
3. Oven stops heating and oven signal sounds when heating timing elapses.

X2 (Double Quanity Feature)
Model 6D51 OS, ULD51 OS only. The X2 pad can add from 10%-100% of additional heating time.

The factory setting is 80%

1. Open oven door, place food in oven, and close oven
   • If pad is not pressed in 30 seconds, open and close oven door again
2. Press X2 pad.
3. Press desired number pad.
   • For some models press 2 digits (01-20).
   • Oven operates and time counts down.
4. Oven stops heating and oven signal sounds when heating timing elapses.

Preprogrammed Times and Cook Level
All preprogrammed pads arrive set at Tull power.

Manual Time Entry
Manual Time Entry feature allows the operator to enter time and power levels, and heat without changing the preprogrammed pads.

1. Open oven door, place food in oven, and close door.
   • Display shows “READY”.
   • If pad is not pressed in 30 seconds, open and close oven door again.
2. Press TIME ENTRYpad.
   • Display shows “0000”.
3. Press number pads to enter desired cooking time.
   • For example, to heat for 2 minutes 30 seconds, press 2, 3, and O pads.
4. Press desired power level pad to change power level.
   • Display shows current power level if other than 100 percent power.
   • The factory setting is 100%.
5. Press S7’ARTpad.
   • Oven operates and time counts down.
6. Oven stops heating and oven signal sounds when heating timing elapses.

PROGRAMMING

Preprogrammed Number Pads
Oven has 1 0 preprogrammed number pads. Model LD51 OS, ULD51 OS has 20 programmable pads (01-20). Follow instructions below to program heating times and power levels for customized cooking.

1. Open oven door.
   • If door is closed or STOP/RESETpad is pressed before finishing programming sequence, oven exits programming mode.
2. Press and hold pad 1 for approximately 5 seconds.
   • After 5 seconds, signal sounds. Display shows “PROGRAM” indicating program mode ..
3. Press desired number pad.
   • For some models press 2 digits(01-20).
   • Display shows heating time, “COOK LEVEL” and power level if other than 100 percent power.
4. Press number pads to enter desired cooking time.
   • For example, to heat for 2 minutes 30 seconds, press 2, 3, and 0 pads.
5. Press desired power level pad to change power level.
   • Display shows current power level if other than 100 percent power.
6. Press power level pad to enter desired power level.
   • For example, pressing DEFROST/20% pad is 20 percent power
   • The factory setting is 100%
7. Press STARTpad to save new heating time and power level in over menory.
8. Press STOP/RESET pad or close oven door to exit programming mode.

X2 (Double Quamty Feature)

Model LD51 OS, ULD51 OS only. It allows the programmer to change how much heating time is added when X2 pad and then the preprogrammed pad is pressed. The X2 pad can add from 10%-100% of additional heating time.

1. Open oven door.
   • If door is closed or STOP/RESET pad is pressed before finishing programming sequence, oven exits programming mode.
2. Press pad hold pad 1 for approximately 5 seconds.
   • After 5 seconds, signal sounds. Display shows “PROGRAM” indicating program mode.
3. Press desired number pad.
   • For some models press 2 digits (01-20) number.
   • Display shows heating time, and programmed number.
4. Press X2 pad.
   • CF:08 shows in display. “CF” represents “cooking factor” and “08” indicates 80%.
5. Press number pad to enter desired cooking factor.
   • For example, pressing 2 pad is 20% (0=100%).
6. Press START pad to save new cooking factor in oven memory.
   • Repeat step 3-6 to program additional pads.
7. Press RESET pad or close oven door to exit.

Multiple Heating Stages

Follow instructions below to program oven to perform 3 consecutive heating cycles without interruption.

1. Open oven door.
   • If door is closed or STOP/RESET pad is pressed before finishing programming sequence, oven exits programming mode.
2. Press pad 1 for approximately 5 seconds.
   • After 5 seconds, signal sounds.
3. Press desired number pad.
   • Display shows heating time and preprogrammed number.
4. Press number pads to enter desired cooking time.
   • For example, to heat for 2 minutes 30 seconds,
5. Press desired power level pad to change power level.
   • If a power level pad is not pressed, oven defaults to 100%power.
   • For example, pressing MEDIUM 50% pad sets oven to 50% power.
   • Display shows current power level if other than 100 percent power.
6. Press power level 9
   • For example, pressing DEFROST 120% pad is 20 percent power.
   • The factory setting is 100%.
7. Press TIME ENTRYpad.
   • Display briefly shows “ST AGE 2”. Then cook time and power level for stage show in display.
   • Repeat steps 5-8 to create additional stages.
8. Press START pad to save new heating time and power level in oven memory.
9. Press RESET pad or close oven door to exit programming mode.

User Options
Follow the instructions below to customized the microwave oven’s operation. End-of-cycle signal, maximum heating time and other options can be changed to meeting your cooking needs.

1. Open oven door.
   • If door is closed or STOP/ RESET pad is pressed before finishing programming sequence, oven exits programming mode.
2. Press and hold pad 2 for approximately 5 seconds.
   • After 5 seconds, signal sounds. Display shows “OPTION”.
3. Press number pad that matches desired option.
   • “OP” represents optional program mode, first number represents option number and second number represents functions currently selected for option.
4. Press STARTpad to advance to next option. See table for options.
5. Press number pad (0, 1-3) to change option.
6. Press STARTpad to save changes.
   • Repeat steps 4-6 to change additional options.
7. Press STOP/RESET pad or close oven door to exit programming mode.

SCHEMATIC DIAGRAM

CIRCUIT DESCRIPTION

GENERAL DETAILS

• The low voltage transformer supplies the necessary voltage to the micom controller when power cord is plugged in.
• When the door is closed, the primary switch is ON, the secor1da1y switcl1 is ON, ai1d t11e 111or1itor switcl1 opeIIs (contact COM and NO).

WHEN SELECTING COOKING POWER LEVEL AND TIME

• The micom controller memorizes the function you set.
• The time you set appears in the display window.
• Each indicator light turns on to indicate that the stage has been set.

WHEN TOUCHING THE START PAD

• The coil of the relay is energized by the micom controller.

• Power input is supplied to the high voltage transformer through the fuse to the primary switch and relay 2.

• Turntable rotates.

• The fan motor rotates and cools the magnetron by blowin the air comin from the intake on the baseplate).

• The air is also directed into the oven to exhaust the vapor in the oven through the upper plate.

• Gookin time starts countin down.

• 3.2 volts AC is generated from the filament winding of the hi h volta e transformer. This 3.2 volts is a lied to the magnetron to heat the magnetron filament through two noise-preventing choke coils.

• A high voltage of approximately 2100 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 is applied to the filament of the magnetron.

WHEN THE OVEN IS SET AT ANY LEVEL EXCEPT MAXIMUM
The micom controller controls the ON-OFF time of 1elay 2 by the applied signal to vary the averge output power of microwave oven as POWER LEVEL. (1efe1 to page 1-1)

WHEN THE DOOR IS OPENED DURING COOKING

• Both the primary switch and relay 2 are cut off primary winding voltage of the high voltage transformer.
• ON-OFF of relay 2 is coupled electrically with opening and closing of the secondary switch.
• When the door is opened, the secondary switch is opened and closing of the secondary switch.
• The cooking time stops counting down.
• Relay stops functioning.
• As the door is opened, if the contact of primary switch and relay 2 and/or secondary switch fails to open, the fuse opens due to the large current surge caused by the monitor switch activation, which in turn stops magnetron oscillation.

References

• Repair Your Grill: Shop Replacement Parts for 24,880 Models
• Amana Microwave Parts - Select From 149 Models

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