Table of Contents
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Service Manual
Specifications:
Power Source:
Power Requirements:
Output: (IEC705-88)
Microwave Frequency:
Timer:
Oven Cavity Size:
Outside Dimensions:
Inside Dimensions:
Weight:
Inverter Power Supply
Output power:
240 V AC Single Phase, 50 Hz
Microwave: 1280W
900W
2,450Mhz
99 min. 99 sec.
27L
510mm (W) X 380mm (D) X 304mm (H)
359mm (W) X 352mm (D) X 217mm (H)
11.5 Kg
IEC705-88 Test procedure
Specifications subject to change without notice
ORDER NO. MOP9905005C2
Microwave Oven
NN-T559WB
NN-T559CB
NN-T589WB
© 1999 Matsushita Electric Industrial Co., Ltd.
All rights reserved. Unauthorized copying and
distribution is a violation of law.
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Table of Contents
Troubleshooting
Related Manuals for Panasonic NN-T559WB
Summary of Contents for Panasonic NN-T559WB
- Page 1 ORDER NO. MOP9905005C2 Service Manual Microwave Oven NN-T559WB NN-T559CB NN-T589WB Specifications: Power Source: 240 V AC Single Phase, 50 Hz Power Requirements: Microwave: 1280W Output: (IEC705-88) 900W Microwave Frequency: 2,450Mhz Timer: 99 min. 99 sec. Oven Cavity Size: Outside Dimensions:...
- Page 2 WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered by electricity should be serviced or repaired only by experienced professional technicians.
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Page 3: Table Of Contents
TABLE OF CONTENTS CONTROL PANELS .................................. 4 OPERATION AND DIGITAL PROGRAMMER CIRCUIT TEST PROCEDURE ................ 5 SCHEMATIC DIAGRAM................................7 DESCRIPTION OF OPERATING SEQUENCE ......................... 8 Variable power cooking control ............................8 Autoweight defrost, autoweight cook..........................8 Auto Sensor cook ................................9 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING.................... -
Page 4: Control Panels
CONTROL PANELS NN-T559 NN-T589 Display Window Time Pads Auto Weight Microwave Programs Auto Sensor Microwave Programs Sensor Reheat Pad Auto Weight Defrost Programs Microwave Power Setting Delay/Stand Pad: This can be used to delay a cooking program for up to 9 hrs 99 mins., or used to time or for standing (non-cooking) time. -
Page 5: Operation And Digital Programmer Circuit Test Procedure
OPERATION AND DIGITAL PROGRAMMER CIRCUIT TEST PROCEDURE Operation guide on the display. To assist in programming, the next operation will appear on the display. When you are used to operating the oven, you can turn the operating guide off. To turn off: To turn on: Press 3 times Press 3 times... - Page 6 4. DELAY STAND OPERATION DISPLAY OPERATION DISPLAY 4. Press start 1. Set power level and time 2. Press stand STAND SET TIME 7. AUTO SENSOR COOK (NN-T589WB) OPERATION DISPLAY 3. Set standing time 1. Select auto sensor program STEAMED PUDDING PRESS START PRESS START 4.
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Page 7: Schematic Diagram
SCHEMATIC DIAGRAM W IR IN G D IA G R A M N O TE : *W he n rep lacing, check the lead colour as sho w n. *C olours show n by ( ) in dicate colours of leadw ire con nector h ousing. M AG N ETRO N C A U T IO N : H E AT S IN K... -
Page 8: Description Of Operating Sequence
DESCRIPTION OF OPERATING SEQUENCE 4.1 Variable power cooking control VARIABLE POWER COOKING POWER OUTPUT RY-1 INVERTER HIGH VOLTAGE INVERTER POWER SUPPLY (U) controls SETTING POWER CONTROL output power by a signal from Digital Programmer Circuit (DPC). APPROX. SIGNAL Power relay 1 stays on to supply power to the inverter circuit. HIGH 900W stay ON... -
Page 9: Auto Sensor Cook
4.3 Auto Sensor cook NN-T589WB Auto sensor cooking is a revolutionary way to cook by microwave without setting a power level or selecting a time. All that is necessary is to select an Auto Sensor Program before starting to cook. Understanding Auto Sensor Cooking As a food cooks, a certain amount fo steam is produced. -
Page 10: Cautions To Be Observed When Troubleshooting
CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING Unlike many other appliances, the microwave oven is high- voltage, high-current equipment. Though it is free from danger in ordinary use, extreme care should be taken during repair. H.V. INVERTER(U) CAUTION Servicemen should remove their watches whenever working BE SURE TO HAVE PROPER close to or replacing the magnetron. -
Page 11: When Parts Must Be Replaced, Remove The Power Plug From The Outlet
5.3 When parts must be replaced, remove 5.6 Confirm after repair the power plug from the outlet. 1. After repair or replacement of parts, make sure that the screws of the oven, etc. are neither loose nor missing. 5.4 When the 10A fuse is blown due to the Microwaves might leak if screws are not properly tightened. -
Page 12: Disassembly And Parts Replacement Procedure
DISASSEMBLY AND PARTS REPLACEMENT PROCEDURE 6.1 Magnetron DANGER 1. Discharge the high voltage capacitors. HIGH VOLTAGE AREA 2. Remove 1 screw holding the air guide A. 3. Remove 2 screws holding the tie bar. 4. Remove the oven lamp and lead wire harness cables from the Air guide A. -
Page 13: Digital Programmer Circuit (Dpc) And Membrane Key Board
6.3 Digital Programmer Circuit (DPC) and 6.4 Low voltage transformer and/or power membrane key board. relays (RY1) NOTE: Be sure to ground any static electric charge built up on NOTE: Be sure to ground any static electric charge built up on your body before handling the DPC. -
Page 14: Door Disassembly
6.6 Door disassembly 1. Remove door C from door E by carefully pulling outward starting from upper right hand corner using a flat blade TURNTABLE MOTOR screwdriver. 2. Remove 4 screws holding door E to door A assembly to separate door E from door A. 3. -
Page 15: Component Test Procedure
COMPONENT TEST PROCEDURE 7.3 Magnetron Continuity checks can only indicate an open filament or a CAUTION NEW H.V. shorted magnetron. To diagnose for an open filament or shorted 1. High voltage is present at the high voltage terminal of the magnetron. -
Page 16: Inverter Power Supply (U)
7.5 Inverter Power Supply (U) DO NOT try to REPAIR this H.V. Inverter power supply(U). Replace as whole H.V. Inverter(U) Unit. HIGH VOLTAGE HEAT SINK TRANSFORMER (RECTIFIER BRIDGE) CHOKE COIL FILM CAPACITORS CN 702 SAND BAR RESISTOR PRIMARY WINDINGS CUSTOM I.C. HIGH VOLTAGE DIODES PHOTO COUPLER CN 701... -
Page 17: Measurements And Adjustments
MEASUREMENTS AND ADJUSTMENTS WARNING • For continued protection against radiation hazard, replace only with identical replacement parts. • When the 10 Amp. fuse is blown due to the operation of SCREW short switch, you must replace Primary latch switch and short switch. -
Page 18: Troubleshooting Guide
TROUBLESHOOTING GUIDE NEW H.V. CAUTION 1. DO NOT try to REPAIR this H.V. Inverter power supply(U). Replace as whole H.V. Inverter(U) Unit. When returning H.V. Inverter(U) make sure to pack as originally packed. 2. DO NOT RE-ADJUST PRESET VOLUME on the H.V. Inverter(U). It is very dangerous to repair or adjust without sufficient test equipment because this circuit handles very large current with very high voltage. - Page 19 SYMPTOMS CAUSE CORRECTIONS Turntable motor does not rotate. 1. Open or loose wiring of turntable motor 2. Defective turntable motor 10 Oven stops operation during cooking. 1. Open or loose wiring of primary and Adjust door and latch switches. secondary latch switch 11 Oven returns to plug in mode 9 secs.
- Page 20 NEW H.V. Alternative way to troubleshooting oven with AC Ampare meter used. Oven shuts down after approximately 15 or 33 seconds. If the microwave oven 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. SELF TEST MODE DISPLAY DISPLAY...
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Page 21: Trouble Related To Digital Programmer Circuit
Trouble Related to Digital Programmer Circuit SYMPTOM STEP CHECK RESULT CAUSE/CORRECTIONS No display when oven is first Fuse pattern of DPC Normal STEP 2 plugged in. Open (NOTE) Shorted Circuit of ZNR, L.V.T., Oven Lamp etc. Replace DPC IC10 Pin 9 Abnormal 0V IC10 Oven is dead. -
Page 23: Parts Lists
INVERTER EARTH BRACKET E65854L00GS INVERTER SUPPORT BRACKET E606Y4N10GP INVERTER E10014N30BP BASE PLATE E10614L00GS WATER SHIELD E1008-1180 RUBBER FOOT E110D4N30HGP OUTER PANEL NN-T589WB NN-T559WB E110D4N30GP OUTER PANEL NN-T559CB E63268960JP TT MOTOR E21778000BP PULLEY SHAFT WASHER E21315870GP PULLEY SHAFT E30074L00GS LOWER HINGE E20554L00GS... -
Page 24: Door Assembly
12. DOOR ASSEMBLY Ref. No. Part No. Part Name & Description Pcs/Set Remarks E302A4N00HBP DOOR A SCREEN B ASSY NN-T589WB NN-T559WB E302A4N00BP DOOR A SCREEN B ASSY NN-T559CB E30214000AP DOOR KEY SPRING E30184L00GS DOOR KEY A E302K4N30BP DOOR E UNIT... -
Page 25: Escutcheon Base Assembly
13. ESCUTCHEON BASE ASSEMBLY Ref. No. Part No. Part Name & Description Pcs/Set Remarks E80724L10HBP DOOR OPENING BUTTON NN-T559WB NN-T589WB E80724L10BP DOOR OPENING BUTTON NN-T559CB E80378A0AG DOOR OPENING BUTTON SPRING E80344L10HBP ESCUTCHEON BASE NN-T559WB NN-T589WB E80344L10BP ESCUTCHEON BASE NN-T559CB E81274L10BP... -
Page 26: Packing And Accessories
E290D4N00BP ROLLER RING E00034N00BP OPERATING INSTRUCTIONS E01695750BP SERVICE CENTER LIST E01134N30BP TRAY STYROL E01024N10HBP CARTON BOX NN-T589WB E01024N00HBP CARTON BOX NN-T559WB E01024N00BP CARTON BOX NN-T559CB E01054N30BP LOWER FILLER E01084N30BP TRAY PACKING E01066750BP VINYL COVER E01076700BP DOOR SHEET E01926430GP PROTECTOR SHEET... -
Page 27: Trim Kit Parts List
Parts list for microwave oven trim kits Exploded View Trim Top and Bottom Pcs/Set Side Strip Pcs/Set Microwave Oven Model No. Strip Ref No: 1 Ref No: 2 Model No. NN-TKV69W E1603A510HBP E1601A510HBP NN-T589WB NN-T559WB NN-TKV69C E1603A510BP E1601A510BP NN-T559CB TRIMKIT ASSY INSTRUCTION E0003A800BP... -
Page 28: Digital Programmer Circuit
16. DIGITAL PROGRAMMER CIRCUIT... -
Page 30: Digital Programmer Circuit - Parts List
17. DIGITAL PROGRAMMER CIRCUIT - PARTS LIST DPC AU - E603L4N10BP (NN-T589WB) Ref. No. Part No. Description Remarks AEEM19FESVKN 19PIN CONNECTOR DISP110 AEDDHLC4L2BP IC220 AN6747B CUSTOM IC D180-D182 AESQTLGE260T GREEN LED CX320 EF0MC8004T4 CERAMIC RESONATOR SW40-48 EVQ11L05R PUSH SWITCH SW50 SW53-63 R182 ERDS2TJ361T... - Page 31 DPC AU - E603L4N00BP (NN-T559WB) (NN-T559CB) Ref. No. Part No. Description Remarks AEEM19FESVKN 19PIN CONNECTOR DISP AEDDHLC4L2BP IC220 AN6747B CUSTOM IC D180-D182 AESQTLGE260T GREEN LED CX320 EF0MC8004T4 CERAMIC RESONATOR SW40-42 EVQ11L05R PUSH SWITCH SW44-63 R182 ERDS2TJ361T RESISTOR 360Ω R314 ERDS2TJ181T RESISTOR 180Ω...
- Page 32 E607X4L00BP - Noise Filter Assembly Ref. No. Part No. Description Remarks ERG1SJ753P RESISTOR 75KΩ 1W C1&C2 AECQJ5225KX1 CAPACITOR 2.2µf C3&C4 ECKMNA472ME CAPACITOR 4700pF 250V AC E621A4J00XN INDUCTOR 2.4mH E03594080BP EARTH WIRE E62316010BP FUSE HOLDER 10A 250V AC NOTES: S - 4N00BP S - 4N10BP Printed in the UK...