Domestic Microwave Technical Information AMV564BA* Due to possibility of personal injury or property damage, always contact an authorized technician for servicing or repair of this unit. Refer to Service Manual 6078 for detailed installation, operating, testing, troubleshooting, and disassembly instructions.! CAUTION All safety information must be followed as provided in Service Manual 6078. Model AMV564BA* Power Source Voltage AC 0 VAC 0 VAC 0 VAC Frequency 60 Hz 60 Hz 60 Hz Single Phase, 3 wire grounded Yes Yes Yes Power Output Nominal microwave energy (IEC705) 50 Watts 000 Watts 000 Watts Operating frequency 450 MHz 450 MHz 450 MHz Power Consumption Microwave, lamp and vent fan 700 Watts 650 Watts 650 Watts Dimensions, Exterior (Cabinet) Width 9 7/8" 76 cm 9 7/8" 76 cm 9 7/8" 76 cm Height 6 5/6" 43 cm 6 /" 4 cm 6 /" 4 cm Depth 5 /3" 40 cm 5 /4" 38 cm 5 /4" 38 cm Dimensions, Interior (Cavity) Width 0 3/3" 5 cm 0 3/3" 5 cm 0 3/3" 5 cm Height 9 3/8" 4 cm 9 3/8" 4 cm 9 3/8" 4 cm Depth 4 3/8" 37 cm 4 3/8" 37 cm 4 3/8" 37 cm Weight (approx.) Uncrated 57 lbs 6 kg 46 lbs kg 46 lbs kg Crated 63 lbs 8.5 kg 55 lbs 5 kg 55 lbs 5 kg June 006 607304
Illustration Component Test Procedure Results High voltage transformer 0 V Primary 0 V AMV564BA*, High voltage transformer 0 V Primary 0 V Low voltage transformer Low voltage transformer AMV564BA* Low voltage transformer Magnetron High Voltage Capacitor Secondary Filament Secondary Filament Disconnect connector and measure continuity with meter on R x scale: Secondary... Filament... Primary... (Measure at room temp, or 70 F/ C.) Measure continuity with meter on "High" scale: Primary winding to ground... Filament winding to ground... Disconnect connector and measure continuity with meter on R x scale: Secondary... Filament... Primary (High & Low)... (Measure at room temp., or 70 F/ C.) Measure continuity with meter on "High" scale: Primary winding to ground... Filament winding to ground... Remove low voltage transformer from control circuit board and check: (Measure at room temp., or 68 F/0 C.) Between pins and (Input)... Between pins 4 and 5 (9v output)... Between pins 6 and 7 (7.0v output)... Between pins 7 and 8 (.7v output)... Remove low voltage transformer from control circuit board and check: (Measure at room temp., or 68 F/0 C.) Between pins and (Input)... Between pins 4 and 5 (9v output)... Between pins 7 and 8 (.7v output)... Remove low voltage transformer from control circuit board and check: (Measure at room temp., or 68 F/0 C.) Between pins and (Input)... Between pins 4 and 5 (9v output)... Between pins 7 and 8 (.7v output)... Remove wires from magnetron and connect ohmmeter to terminals. Also check between each terminal and ground. Remove wires from capacitor terminals and connect ohmmeter, set on highest resistance scale to terminals. Check resistance between each terminal and capacitor case... Approx. 00-04 Ω.. Less than Ω. Infinite Ω. Infinite Ω. Approx. 88-9 Ω.. Less than Ω. Infinite Ω. Infinite Ω. Approx. 8 Ω. Approx. Ω. Approx. Ω. Approx. 5 Ω. Approx. 379 Ω. Approx. Ω. Approx. Ω. Approx. 43 Ω. Approx. Ω. Approx. Ω. Between Terminals: Less than Ω Each Terminal to Ground: Infinite Ω. NOTE: This test is not conclusive. If microwave oven does not heat and all other components test good, replace the magnetron and retest. Between Terminals: Meter should momentarily indicate continuity, then 9 MΩ (deflection). A steady 9 MΩ indicates an open capacitor. Steady continuity indicates a shorted capacitor. In either case, replace capacitor. Infinite Ω. 607304 June 006 Replaces 6074 006 Maytag Services
Illustration Component Test Procedure Results High Voltage Diode Power Control Relay Remove diode lead from capacitor and connect ohmmeter. Reverse leads for second test. Disconnect the leads. Place water in the microwave oven and select power levels through 0. Press the START pad. Check continuity between the terminals of the relays... Infinite resistance should be measured in one direction and several hundred KΩ in the opposite direction. NOTE: Ohmmeter must contain a battery of 6 volts minimum. Power Level Cycle On Cycle Off () (Open) 4 sec 6 sec 7 sec 3 sec 3 0 sec 0 sec 4 3 sec 7 sec 5 6 sec 4 sec 6 9 sec sec 7 sec 8 sec 8 5 sec 5 sec 9 8 sec sec 0 30 sec 0 sec Primary Interlock Switch (Bottom Switch) Measure resistance between terminals and : Door Open... Door Closed... Open.. Secondary Interlock Switch (Top Switch) Measure resistance between terminals and : Door Open... Door Closed... Open.. Interlock Monitor Switch (Middle Switch) Measure resistance between terminals and : Door Open... Door Closed.... Open. A B C Cavity (Flame Sensor) Thermal Cut-Out (Thermostat) AMV564BA*, Cavity (Flame Sensor) Thermal Cut-Out (Thermostat) Fan motor Disconnect all wires from TCO. Measure resistance across terminals. Disconnect all wires from TCO. Measure resistance across terminals. Remove all wires from motor. Non resetable. Open:... F (00 C). Non resetable. Open:... 48 F (0 C). Measure resistance... Approx. 8-35 Ω. Infinite or several, motor is defective. June 006 3 607304
Illustration Component Test Procedure Results Hood Thermal Cut-Out (Thermostat) Bottom Thermal Cut-Out (Thermostat) Disconnect all wires from TCO. Measure resistance across terminals... NOTE: This TCO only works in an overheat condition. Otherwise, it will measure "open" when testing. Disconnect all wires from TCO. Measure resistance across terminals... Resetable. Open:... 58 F (70 C). Vent fan engaged. Closed:... 04 F (40 C). Vent fan disengaged. Non resetable. Open:... 48 F (0 C). Magnetron Thermal Cut- Out (Thermostat) Lamp Receptacle Disconnect all wires from TCO. Measure resistance across terminals... Measure resistance of receptacle terminals... Resetable. Open:... 30 F (60 C). Closed:... 40 F (60 C). when known good bulb is inserted. 3 Stirrer Motor AMV564BA*, Turntable Drive Motor AMV564BA*, Stirrer Motor Turntable Drive Motor Ventilation Motor Vent Blower Motor (run) Capacitor Sensor Test AMV564BA*, Measure voltage across terminals... Measure resistance across terminals... Measure voltage across terminals... Measure resistance across terminals... Measure voltage across terminals... Measure resistance across terminals... Measure voltage across terminals... Measure resistance across terminals... Remove two wires to run capacitor and measure resistance across the wires... Remove one wire from capacitor terminals and connect ohmmeter. Set on highest resistance scale. Apply power to microwave for 5 minutes. Press AUTO DEFROST and REHEAT pads simultaneously and monitor display for V-Out value... Approx. 0 VAC. Approx. 3 to 4 kω. Approx. 0 VAC. Approx. 3 to 4 kω. Approx. 0 VAC. Approx. 08 to 3 Ω. Approx. 0 VAC. Approx. 08 to 3 Ω. Approx. 75 Ω. (Tests all 3 windings.) Between Terminals: Meter should momentarily indicate several ohms, then return to infinity (deflection). If no deflection occurs, or if continuous deflection occurs, replace capacitor. Terminal to Case: Infinite resistance. Less than 0... Sensor failure. 0 to 50... Normal. More than 50... Sensor failure. Error Code Table Error Code Explanation Possible Cause SE Keypad shorted 0 seconds or longer. Sticky keypad(s). E6 Sensor open error. Sensor unplugged, wiring or PCB assembly. E6 Sensor shorted error. Sensor shorted or PCB assembly. E63 T Max Time error. PCB assembly. 607304 4 June 006 Replaces 6074 006 Maytag Services
Power Test (Traditional Test Method) Test equipment required is Amana power test kit R057397 (Fahrenheit), or Menumaster power test kit M95D5 (Celsius).. Fill the plastic container to the 000 ml. line with cool tap water.. Using the thermometer; stir the water, measure, and record the water temperature. Initial water temperature should be approximately 60 F (6 C). 3. Place container on the center of the oven shelf and heat the water for 33 seconds for ovens with more than 550 watts or 63 seconds for ovens with less than 550 watts. NOTE: Use a watch second hand, not the oven timer. 4. Stir the water, measure and record the temperature of the water after heating time is complete. 5. Subtract the starting water temperature (Step ), from the ending water temperature (Step 4) to obtain the temperature rise ( T). 6. See the Traditional Power Test Temperature Chart below. NOTES: The IEC-705 test method requires precision measurements and equipment. It is not practical to perform the IEC test in the field. To convert the traditional power test results to the approximate IEC-705 rating, take the traditional power test results and add 00 watts per magnetron for the unit being tested. Example: 900 watts output using the traditional power test + 00 watts ( magnetron X 00 watts) 000 Approximate IEC-705 results Always perform power test three times for accuracy, changing the water after each test is performed. Variation or errors in the test procedure will cause a variance in the temperature rise. Additional power tests should be made if temperature rise appears marginal. Low line voltage will cause lower temperature rise. Traditional Power Test Temperature Chart SIXTY-THREE (63) SECONDS run time chart for units less than 550 Watts cooking power. Fahrenheit Celsius T Cooking T Cooking T Cooking T Cooking ( F) Power Output ( F) Power Output ( C) Power Output ( C) Power Output 6 60 3 89 7 490 5 050 7 659 4 930 8 560 6 0 8 697 5 969 9 630 7 90 9 736 6 007 0 700 8 60 0 775 7 046 770 9 330 84 8 085 840 0 400 85 9 4 3 90 470 4 980 540 June 006 5 607304
Component Test Procedure Results Removal of Touch Pad/Control Panel is required to perform test. Check for continuity. Touch Pad/Control Panel AMV564BA* When touched: Less than 400 Ω. When not touched: More than mega Ω. Pad 3 4 5 6 7 8 9 0 Vegetables Cook Pizza Slice Option Baked Potato Popcorn Light Hi/Lo/Off Pound Defrost Add 30 Seconds Reheat Light Timer Control Setup Turntable On/Off Kitchen Timer Custom Program Auto Defrost Enter/Start Clock Power Level Stop/Clear Vent Hi/Lo/Off Trace 8 & 6 7 & 6 6 & 6 5 & 6 4 & 6 3 & 6 9 & 5 8 & 5 7 & 5 9 & 6 8 & 0 9 & 0 3 & & 0 6 & 7 & 8 & 9 & 4 & 3 5 & 3 6 & 3 7 & 3 8 & 3 9 & 3 3 & 4 4 & 4 5 & 4 9 & 4 3 & 5 4 & 5 6 & 5 Measurement 607304 6 June 006 Replaces 6074 006 Maytag Services
Component Test Procedure Results Removal of Touch Pad/Control Panel is required to perform test. Check for continuity. Touch Pad/Control Panel When touched: Less than 400 Ω. When not touched: More than mega Ω. Pad 3 4 5 6 7 8 9 0 5 Speed On/Off Vegetables Cook Option Pizza Slice Baked Potato Popcorn Light Hi/Lo/Off Pound Defrost Delay Off Add 30 Seconds Reheat Light Timer Control Setup Kitchen Timer Custom Program Auto Defrost Enter/Start Clock Power Level Stop Clear Trace 8 & 6 7 & 6 6 & 6 5 & 6 4 & 6 3 & 6 9 & 5 8 & 5 7 & 5 9 & 6 3 & 0 4 & 0 8 & 0 9 & 0 & 3 & 6 & 7 & 8 & 9 & 3 & 3 4 & 3 5 & 3 6 & 3 7 & 3 9 & 3 3 & 4 4 & 4 5 & 4 9 & 4 3 & 5 4 & 5 Measurement June 006 7 607304
Component Test Procedure Results Removal of Touch Pad/Control Panel is required to perform test. Check for continuity. Touch Pad/Control Panel When touched: Less than 400 Ω. When not touched: More than mega Ω. Pad 3 4 5 6 7 8 9 0 Pizza Slice Vegetables Cook Beverage Baked Potato Popcorn Light Hi/Lo/Off Pound Defrost Add 30 Seconds Reheat Light Timer Control Setup Turntable On/Off Kitchen Timer Custom Program Auto Defrost Enter Start Snacks Kids Meals Soften/Melt Clock Power Level Stop/Clear Vent Hi/Lo/Off Option Trace 6 & 5 5 & 5 4 & 5 3 & 5 & 5 & 5 7 & 4 6 & 4 5 & 4 7 & 5 & 0 & 0 3 & 0 3 & 4 & 5 & 6 & 7 & & 3 & 4 & 5 & 6 & 7 & & 3 & 3 3 & 3 4 & 3 5 & 3 6 & 3 7 & 3 & 4 & 4 4 & 4 9 & 4 Measurement 607304 8 June 006 Replaces 6074 006 Maytag Services
Wiring Diagram and Schematic Schematic Diagram June 006 9 607304
Wiring Diagram and Schematic AMV564BA* Schematic Diagram 607304 0 June 006 Replaces 6074 006 Maytag Services
Wiring Diagram and Schematic Schematic Diagram June 006 607304