Table of Contents
Troubleshooting
Related Manuals for Panasonic NE9051BBQP
Summary of Contents for Panasonic NE9051BBQP
- Page 1 SPARE PARTS DIAGRAM FOR Microwave/Combi NE9051BBQP First Choice Group Blakeney Way, Kingswood Lakeside Cannock, Staffs, WS11 8LD TEL: 01543 577778 FAX: 01543504141 Email: enquires@firstchoice-cs.co.uk Web: www.firstchoice-cs.co.uk...
- Page 2 MOP0110037C2 Microwave Oven NE-9051BBPQ © 2001 Matsushita Electric Industrial Co., Ltd. All rights reserved. Unauthorized copying distribution is a violation of law.
-
Page 3: Table Of Contents
E-9051BBPQ CONTENTS Page Page 1 Inverter Warning 11 Troubleshooting guide 2 Feature Chart 12 Digital Programmer Circuit Troubleshooting Guide 3 Control Panel 13 Main Parts List 4 Operation And Digital Programmer Test Procedure 14 Exploded View 5 Schematic And Wiring Diagram 15 Door Assembly 6 Description Of The Operating Sequence 16 Escutcheon Base... -
Page 4: Inverter Warning
NE-9051BBPQ 1 Inverter Warning The inverter board looks like a normal printed circuit board. However, this printed circuit board supplies the magnetron tube with very high voltage and current. The inverter PCB: 1. Produces very high voltage and current. 2. Has an Aluminium heat sink which becomes very hot. 3. -
Page 5: Control Panel
E-9051BBPQ 3 Control Panel... -
Page 6: Operation And Digital Programmer Test Procedure
NE-9051BBPQ 4 Operation And Digital Programmer Test Procedure 4.1. Setting the Clock 4.2. Single Stage Cooking 4.3. 2 or 3 Stage Cooking 4.4. Function A Memory Pads... - Page 7 E-9051BBPQ 4.5. Function B Memory Pads (Programming) 4.6. Function B Operation 4.7. Program Lock 4.8. Auto Weight Defrost 4.9. Double Quantity / x 2 Function...
-
Page 8: Schematic And Wiring Diagram
NE-9051BBPQ 5 Schematic And Wiring Diagram... -
Page 9: Description Of The Operating Sequence
E-9051BBPQ 6 Description Of The Operating Sequence 6.1. Variable power cooking control The output power is controlled by the inverter power supply, which is controlled by signals from the digital programmer circuit (DPC). The digital programmer cicruit operates relay RY1 to supply power to the inverter circuit. The outpower is controlled by the inverter control signal from the digital programmer circuit. -
Page 10: Cautions To Be Observed When Troubleshooting
NE-9051BBPQ 7 Cautions to Be Observed When Troubleshooting Unlike many other appliances, the microwave oven is a high voltage, high current device. Though it is free from danger in ordinary use, extreme care should be taken during repair. Caution Servicemen should remove their watches whenever working close to or replacing the magnetron. - Page 11 E-9051BBPQ 7.6. Confirm after repair 7.3. Part Replacement. 1. After repair or replacement of parts, make sure that the When any part or component is to be replaced, always ensure screws of the oven, etc. are neither loose nor missing. that the power cord is removed from the wall outlet.
-
Page 12: Parts Replacement Procedure
NE-9051BBPQ 8 Parts Replacement Procedure 9. Remove the four screws holding the PCB to the inverter 8.1. Magnetron support base. 1. Discharge the high voltage capacitors on the inverter circuit. Caution when replacing the inverter power supply (U) 2. Remove the screw holding the air guide. 1. - Page 13 E-9051BBPQ 4. Remove the six screws holding the DPC DU assembly. relays and install the new components making sure that the terminal pins are inserted completely. Carefully re solder all 5. Remove the door lever. terminal contacts carefully. 6. Remove the seven screws holding the DPC AU assembly. Note NOTE: Do not use a soldering iron or de soldering tool of more...
- Page 14 NE-9051BBPQ 2. Adjust so that the door has no play between the inner door Note: After breaking off the motor cover, make sure that surface and the oven front surface. If the door assembly is cut-off portions are properly trimmed off or bent inside so not mounted properly, microwave power may leak from the that no sharp edges are exposed.
-
Page 15: Component Test Procedure
E-9051BBPQ 9 Component Test Procedure Caution 1. High voltage is present at the high voltage terminal of the inverter unit, including the aluminium heat sink. 2. It is not necessary or advisable to attempt to measure this high voltage. 3. Before touching any oven components, or wiring, always unplug the oven from its power source and discharge the high voltage capacitors. - Page 16 NE-9051BBPQ 9.5. Inverter Power Supply Caution DO NOT try to repair this inverter power supply). Replace as a whole H.V. Inverter Unit. Figure 3 Inverter Power Supply Diagram 9.6. Inverter Power Supply Unit Warning Do not attempt to make any measurements in the high voltage circuitry of the inverter or magnetron.
-
Page 17: Measurements And Adjustments
E-9051BBPQ 10 Measurements and Adjustments Warning 5. The normal temperature rise at the high power position for • For continued protection against radiation hazard, each model is shown in the table. (Figure 2). replace only with identical parts. • When the 10 amp fuse is blown due to the operation of the short switch, you must replace the primary latch switch and short switch. -
Page 18: Troubleshooting Guide
NE-9051BBPQ 11 Troubleshooting guide Caution 1. Do not try to repair this H.V. Inverter power supply. Replace as a whole unit. When returning the inverter unit pack in the original inverter box. 2. Do not adjust the preset volume on the H.V. Inverter. It is very dangerous to repair or adjust without sufficient test equiptment, this circuit handles very high volatge and current. - Page 19 E-9051BBPQ Troubleshooting (Fuse is blown) Figure 2 Troubleshooting (Other problems) Figure 3 Troubleshooting of Inverter Circuit and Magnetron. Oven shuts down after approximately 15 -33 seconds. If the microwave shuts down after a short time in micropower mode, conduct the following test. The microwave oven must be set in test mode to activate the self diagnostic failure code system.
- Page 20 NE-9051BBPQ Troubleshooting Inverter by Input out voltage Figure 4 Alternative way to troubleshooting oven using AC Ampere meter. Oven shuts down after approximately 15 -33 seconds. Troubleshooting of Inverter Circuit and Magnetron. If the microwave shuts down after a short time in micropower mode, conduct the following test. The microwave oven must be set in test mode to activate the self diagnostic failure code system.
-
Page 21: Digital Programmer Circuit Troubleshooting Guide
E-9051BBPQ 12 Digital Programmer Circuit Troubleshooting Guide How to test the semiconductors Figure 2... -
Page 22: Main Parts List
NE-9051BBPQ 13 Main Parts List 1. Part numbers are indicated on most mechanical parts. Please use these part numbers for part orders. Do not use the description of the part. Important safety notice 1. Components identified by mark have special characteristics important for safety. When replacing any of these components, use only the manufacturers specified parts. -
Page 23: Exploded View
E-9051BBPQ 14 Exploded View... -
Page 24: Door Assembly
NE-9051BBPQ 15 Door Assembly Ref. Part No. Part Name & Description Remarks E302A4N20SGP DOOR A ASSEMBLY E302K4N00BP DOOR E ASSEMBLY E30214000AP DOOR KEY SPRING E30184L00GS DOOR KEY E30854N30BP DOOR C E30064N30BP UPPER HINGE E31454N00BP DOOR SCREEN A E30844V00SBP DOOR EMBLEM NOTE: When ordering any Door component also order door C as this part may become damaged during disassembly. -
Page 25: Escutcheon Base
E-9051BBPQ 16 Escutcheon Base Ref. No. Part No. Part Name & Description Remarks E80725D00SBP DOOR OPENING BUTTON E80378AOAG SPRING E800S5F70SBP ESCUTCHEON BASE ASSY E81274V00SBP ESCUTCHEON BACK PLATE E603L5F70BP DPC AU E66164L00GS RIBBON CABLE E82564V00SBP DOOR OPENING LEVER E603Y5D20BP DPC DU E83264L10BP DISPLAY SHEET E00075F70BP... -
Page 26: Packing And Accessories
NE-9051BBPQ 17 Packing And Accessories Ref. Part No. Part Name & Description Remarks E06014N30BP GLASS TRAY E290D4N30BP ROLLER RING UNIT E00035F70BP COOK BOOK E01695F70BP SERVICE CENTER LIST E01134N30BP TRAY STYROL E01084N30BP TRAY PACKING E01025F70SBP CARTON BOX E01054N30BP LOWER FILLER E01064N70GS VINYL BAG E01076700BP DOOR SHEET... -
Page 27: Key Board Matrix
E-9051BBPQ 18 Key Board Matrix... -
Page 28: Digital Programmer Circuit
NE-9051BBPQ 19 Digital programmer Circuit DPC Schematic 1... - Page 29 E-9051BBPQ DPC Schematic 2...
-
Page 30: Digital Programmer Circuit Parts List
NE-9051BBPQ 20 Digital programmer circuit parts list These components are not available separately and are only listed to assist with fault diagnosis. 20.1. E603L5F70BP DPC AU Ref. No. Part No. Part Name & Description Remarks J5 J13 A64454L60UP 20mm JUMPER A64454V00BP 15mm JUMPER J9 J10 J14 J22...