Panasonic NN-GS595A Service Manual Download Page 1

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10/24/2016

XML Service Manual

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ORDER NO.PHAMOS0511035C3

Microwave Oven
NNGS595A

CHP(Hong Kong)
CYP(Singapore)
CMP(Malaysia)
CTP(Thailand, Indonesia)
CYT(Others)
CKT(UAE)
CPT(Iran)
CKP(Kuwait, Doha, Qatar, Oman, Bahrain, Pakistan)
CZP(CIS Countries)

Summary of Contents for NN-GS595A

Page 1: ...nde 1 3 ORDER NO PHAMOS0511035C3 Microwave Oven NN GS595A CHP Hong Kong CYP Singapore CMP Malaysia CTP Thailand Indonesia CYT Others CKT UAE CPT Iran CKP Kuwait Doha Qatar Oman Bahrain Pakistan CZP CIS Countries 2005 Panasonic Home Appliances Microwave Oven Shanghai Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law ...

Page 2: ...10 24 2016 XML Service Manual file C Users sh dehghani Desktop NN GS595AOTSVC_PHAMOS0511035C3 viewing SGML_VIEW_DATA OT NN GS595A SVC PHAMOS0511035C3 inde 2 3 ...

Page 3: ...10 24 2016 XML Service Manual file C Users sh dehghani Desktop NN GS595AOTSVC_PHAMOS0511035C3 viewing SGML_VIEW_DATA OT NN GS595A SVC PHAMOS0511035C3 inde 3 3 ...

Page 4: ...10 24 2016 schemat1 png 540 753 file C Users sh dehghani Desktop NN GS595AOTSVC_PHAMOS0511035C3 viewing SGML_VIEW_DATA OT NN GS595A SVC PHAMOS0511035C3 doc 1 1 ...

Page 5: ...10 24 2016 schemat2 png 540 753 file C Users sh dehghani Desktop NN GS595AOTSVC_PHAMOS0511035C3 viewing SGML_VIEW_DATA OT NN GS595A SVC PHAMOS0511035C3 doc 1 1 ...

Page 6: ...is rectified to DC voltage immediately 2 DC voltage will be supplied to the switching devices called IGBT These devices are switched ON OFF by the 20 to 40 KHz PWM pulse width modulation signal from the microcomputer in the DPC 3 This drives the High voltage transformer to increase voltage up to 2 000V AC 4 Then the half wave doubler voltage rectifier circuit consisting of the H V diodes and capac...

Page 7: ...ature will continue increasing for a while and then decrease as shown in Figure When the oven temperature drops below the set temperature the digital programmer circuit senses the signal and starts supplying a high level signal to power relays again 2 5 Combination cook control Combination cooking is accomplished by microwave and grill cooking upper heater being done synchronously during one combi...

Page 8: ...lf 19 points 2 7 Steam function micro steam steam reheat 2 7 1 Water Supply Water in water tank will be pumped out and supply to the steam generation heater located inside back bottom of oven cavity 2 7 2 Operation When pressing start pad oven preheat will start and then water supply begins It will take 1 minute for preheating When preheat is completed it will turn into actual cooking process Duri...

Page 9: ...RTER POWER SUPPLY U The High Voltage Inverter Power Supply handles very high voltage and current for the magnetron tube Though it is free from danger in ordinary use extreme care should be taken during repair The aluminum heat sink is also energized with high voltage HOT do not touch when the AC input terminals are energized The power device Collector is directly connected to the aluminum heat sin...

Page 10: ...present with high current capabilities in the circuits of the primary and secondary windings choke coil and heat sinkof the inverter It is extremely dangerous to work on or near these circuits with the oven energized DO NOT measure the voltage in the high voltage circuit including the filament voltage of the magnetron WARNING Never touch any circuit wiring with your hand or with an insulated tool ...

Page 11: ...fore inserting the plug into the wall outlet 3 Check for microwave energy leakage Refer to procedure for measuring microwave energy leakage CAUTION MICROWAVE RADIATION USE CAUTION NOT TO BECOME EXPOSED TO RADIATION FROM THE MICROWAVE MAGNETRON OR OTHER PARTS CONDUCTING MICROWAVE ENERGY IMPORTANT NOTICE The following components have potentials above 2000V while the appliance is operated Magnetron H...

Page 12: ...nforce bracket B on oven cavity 4 Remove 1 screw holding oven thermistor on cavity top plate 5 Remove 1 grounding screw holding AC cordʼs earth lead 6 Disconnect 2 high voltage lead wires from magnetron filament terminals 7 Remove 1 screw holding thermistor on magnetron 8 Remove 1 screw holding air guide A on magnetron then remove air guide A 9 Remove 2 screws holding air guide B on magnetron on b...

Page 13: ... NOTE Be sure to ground any static electric charge built up on your body before handling the DPC 1 Draw out water tank from escutcheon base 2 Pull out tube A connecting to pump from copper pipe 3 Remove all wiring connectors from D P C board AU 4 Remove 1 grounding screw holding on cavity front plate 5 Open the door of oven slide the escutcheon base upward and out slightly 6 Remove 3 screws holdin...

Page 14: ...are inserted completely then resolder all terminal contacts carefully 4 4 H V Inverter 1 Discharge high voltage remaining in high voltage capacitor 2 Remove 2 screws holding reinforce bracket A on oven cavity 3 Remove 2 screws holding reinforce bracket B on oven cavity 4 Remove 1 screw holding oven thermistor on cavity top plate 5 Remove 1 grounding screw holding AC cordʼs earth lead 6 Disconnect ...

Page 15: ...2 screws holding air guide B on magnetron on base plate respectively then remove air guide B 3 Remove 2 screws holding fan motor and detach fan motor from oven assy 4 Remove fan blade from fan motor shaft by pulling it straight out 4 6 Upper heater 1 Disconnect lead wires from both sides of upper heater terminals 2 Remove 1 screw holding heater support from the left side of microwave oven 3 Remove...

Page 16: ... board AU 2 Remove 1 screw holding IR SENSOR U on right heater panel To replace swing motor of IR sensor 1 Release the locking lever of connector on swing motor then remove drive line 2 Remove 2 screws holding swing motor on motor mounting plate 3 Remove swing motor from IR sensor assy 4 8 Door assembly 1 Remove left and right door key springs from door arm with plier NOTE Please support door befo...

Page 17: ...on below for proper installation and adjustment so as to prevent an excessive microwave leakage Adjustment of the door assembly 7 When mounting the door to the oven be sure to adjust the door parallel to the cavity front plate by moving hinges back or front NOTE Upper portion of door A should firmly touch the cavity front plate without pushing 4 9 Pump 1 Draw out water tank from escutcheon base 2 ...

Page 18: ... afterbody of pump slightly to release the tabs of pump bracket then draw out pump 10 Pull out tube A from outlet of pump To install pump 1 Insert pump into pump bracket Inlet of pump should be close to harness clasp of pump bracket 2 Please confirm if it is fitted well after installing NOTE After repairing when insert copper pipe into tube A make sure the inserted depth should be no less than 9 m...

Page 19: ...move base from oven assy 6 Disconnet 2 lead wires from stir motor terminals 7 Remove 2 screws holding stir motor 4 11 Heater DU steam heater 1 Remove tubes from both ends of copper pipe 2 Remove 1 screw holding air guide B on the base 3 Remove left and right door key springs from door arm NOTE Please support door before operation 4 Turn over the microwave oven and remove all screws holding base on...

Page 20: ...stor please fill enough silicon grease into the installation hole of heater DU for good conductibility 4 12 Lower heater 1 Remove tubes from both ends of copper pipe 2 Remove 1 screw holding air guide B on the base 3 Remove left and right door key springs from door arm NOTE Please support door before operation 4 Turn over the microwave oven and remove all screws holding base on oven assy two hinge...

Page 21: ...of switches at door opened and closed positions with ohm meter low scale Normal continuity readings should be as follows Door Closed Door Opened Primary Latch switch 0Ω Close Ω Open Door Switch 0Ω Close Ω Open Power Relay B Ω Close Ω Open 5 2 Short switch monitor 1 Unplug lead wires from Inverter Power Supply U primary terminals 2 Connect test probes of ohm meter to the disconnected leads that wer...

Page 22: ...r by doing the following procedure It is recommended to use an AC line input current Ampere meter for testing Test1 1 Program DPC 1 Press Timer Clock pad twice 2 Press Start pad once 3 Press Micro Power pad once 2 Place 1 liter of water load into oven cavity 3 Unplug 2 pin H V lead wire connector CN703 from magnetron tube 4 Program oven at High power for 1 minute and press start 1 After approximat...

Page 23: ...NETRON THERMISTOR STEAM HEATER THERMISTOR OVEN THERMISTOR 100 C 30 60KΩ 10 20KΩ 10 20KΩ 25 C 700K 1 5MΩ 100K 300KΩ 100K 300KΩ If the resistance reading is out of the range stated here the thermistor is detective and must be replaced 5 7 IR Sensor To test if IR sensor is ok by doing the following procedures Test 1 Program DPC 1 Press Timer Clock pad twice 2 Press Start pad once 3 Press Micro Power ...

Page 24: ... that the oven door will not have any play in it Check for play in the door by pulling the door assembly Make sure that the latch keys move smoothly after adjustment is completed Completely tighten the screws holding the door hook assembly to the oven assembly 3 Reconnect the short switch and check the continuity of the monitor circuit and all latch switches again by following the component test p...

Page 25: ... the water using the thermometer and record the water s temperature recorded as T1 2 Place the beaker on the center of glass tray Set the oven for High power and heat it for exactly one minute 3 Stir the water again and read the temperature of the water recorded as T2 4 The normal temperature rise at High power level for each model is as shown in table TABLE 1L 1min test RATED OUTPUT TEMPERATURE R...

Page 26: ...and primary circuit of Digital Programmer Circuit When troubleshooting be cautious of possible electrical shock hazard Before troubleshooting operate the microwave oven following the correct operating procedures in the instruction manual in order to find the exact cause of any trouble since operator error may be mistaken for the oven s malfunction Self diagnostic display Oven has self diagnostic f...

Page 27: ...701 CN702 Oven stops in 23 seconds after pressing start pad H V Inverter U operates by the control signals from DPC but magnetron is not oscillating 1 Magnetron 2 Loose lead wire connector CN703 Oven stops in 1 minute after pressing start pad Oven cooking Oven thermistor circuit is not functions 1 Oven thermistor 2 Loose wiring Oven stops in 30 seconds after pressing start pad Steam cooking Steam ...

Page 28: ...er magnetron filament voltage and cause magnetron to have lower output and or be intermittent Check high voltage component according to component test procedure and replace if it is defective 3 Defective high voltage component H V Inverter Power Supply u Magnetron Check high voltage component according to component test procedure and replace if it is defective 4 Open or loose wiring of power relay...

Page 29: ...n explains failure codes of H95 H97 H98 and H99 First you must program the DPC into TEST MODE press Timer Clock pad twice Press Start pad once press Micro Power pad once Program unit for operation H95 H97 H98 H99 appears in display window a short time after start key is pressed and there is no microwave oscillation Alternate way to troubleshoot oven with AC Ampere meter used H95 H97 H98 H99 appear...

Page 30: ... Magnetron simultaneously and automatically without going through this procedure Power will Ammeter reading is To do Remedy Power will Ammeter reading is To do Remedy Shut off in 23 seconds after Start 1 Between 0 5A and 1 0A Check and repair open magnetron circuit Open magnetron wiring between Inverter and magnetron terminal 2 Between 1 0A and 2 0A Check continuity of D702 in Inverter PCB 1 D702 ...

Page 31: ...Part No Part Name Description Pcs Set Remarks Q701 A691EM300GP IGBT 1 Q702 IGBT 1 C701 ECWF5184N300 FILM CAPACITOR 1 C702 ECQE2505T869 FILM CAPACITOR 1 C703 ECWF2395N632 FILM CAPACITOR 1 DB701 B0FBBS000001 RECTIFIER BRIDGE 1 L701 F5020M300GP CHOKE COIL 1 R702 D0CM352JA002 SAND BAR RESISTOR 1 T701 A609AM300GP TRANSFORMER 1 INCLUDING D701 D702 C706 C707 D701 D702 B0FBAZ000001 DIODE 2 C706 ECWH30562U...

Page 32: ...10 24 2016 exploded png 757 538 file C Users sh dehghani Desktop NN GS595AOTSVC_PHAMOS0511035C3 viewing SGML_VIEW_DATA OT NN GS595A SVC PHAMOS0511035C3 doc 1 1 ...

Page 33: ...parts Ref No Part No Part Name Description Pcs Set Remarks 1 F01577J70HP NAME PLATE 1 CHP 1 F01577J70KP NAME PLATE 1 CKP 1 F01577J70KT NAME PLATE 1 CKT 1 F01577J70MP NAME PLATE 1 CMP 1 F01577J70PT NAME PLATE 1 CPT 1 F01577J70TP NAME PLATE 1 CTP 1 F01577J70YP NAME PLATE 1 CYP 1 F01577J70YT NAME PLATE 1 CYT 1 F01577J70ZP NAME PLATE 1 CZP 2 F10017J70XPG BASE 1 EXCEPT CTP 2 F1001 1K00 BASE 1 CTP 3 A10...

Page 34: ...61447J70XP STIR MOTOR 1 25 F20197J70XP ANTENNA BRACKET 3 26 J61424T00AP MICRO SWITCH 1 V 15G 3C25 PRIMARY LATCH SWITCH 27 A61425180AP MICRO SWITCH 1 D3V 16G 3C25 SECONDARY LATCH SWITCH 28 A61785180AP MICRO SWITCH 1 D3V 1G 2C25 SHORT SWITCH 29 F603Y7J70XP D P CIRCUIT DU 1 30 A62304210BP FUSE 1 10A 31 F62315G10XN FUSE HOLDER 1 EXCEPT CZP 32 MKPX2335K FILM CAPACITOR 1 EXCEPT CZP 33 F900C5Q00YK AC COR...

Page 35: ...OUNTING PLATE 1 48 F01506W50XP NO TOUCHING LABEL 1 49 F22377J70XP LEFT HEATER PANEL 1 50 F22367J70XP RIGHT HEATER PANEL 1 51 F300B7J70XP LEFT HINGE U 1 52 F300U7J70XP RIGHT HINGE U 1 53 F601L7J70XP IR SENSOR U 1 54 A6760 1E20 SWING MOTOR 1 55 F44967J70XP NOZZLE A 1 56 F45137J70XP TIE IN C 1 57 F92017J70XP COPPER PIPE 1 58 F46507J70XP TUBE C 1 59 F92047J70XP TUBE D 1 60 F04457J70KP MENU LABEL 1 CKP...

Page 36: ...TANK 1 E3 F06117J70XP TANK COVER 1 E4 F44247J70XP SEAL 1 E5 F44437J70XP TANK PLUG A 1 E6 F46107J70XP TANK SPRING 1 E7 F46077J70XP WASHER 1 8 4 ESCUTCHEON BASE ASSEMBLY Ref No Part No Part Name Description Pcs Set Remarks Ref No Part No Part Name Description Pcs Set Remarks E11 F603L7J70HP D P CIRCUIT AU 1 CHP E11 F603L7J70KP D P CIRCUIT AU 1 CKP E11 F603L7J70MP D P CIRCUIT AU 1 CMP E11 F603L7J70PT...

Page 37: ...27J70XP TIE IN B 1 E19 F46487J70XP TUBE A 1 E20 F46497J70XP TUBE B 1 8 5 DOOR ASSEMBLY Ref No Part No Part Name Description Pcs Set Remarks Ref No Part No Part Name Description Pcs Set Remarks D1 F390L7J70SXP DOOR U 1 D3 F30447J70XP DOOR ARM RIGHT 1 D4 F30857J70XP DOOR C 1 D5 F33347J70XP SEAL 1 D7 F30547J70XP DOOR ARM LEFT 1 D8 F32317J70XP DOOR KEY SPRING A 1 D9 F32307J70XP DOOR KEY SPRING B 1 8 6...

Page 38: ...P CYP CYT P2 F01027J70KP PACKING CASE PAPER 1 CKP P2 F01027J70KT PACKING CASE PAPER 1 CKT CPT P2 F01027J70ZP PACKING CASE PAPER 1 CZP P3 F01047J70KP UPPER FILLER 1 P4 F01057J70XP LOWER FILLER 1 P5 F01064W00AP P E BAG 1 P6 F01078100XN DOOR SHEET 1 P7 F06217J70XP QUADRATE COOKING TRAY 1 P8 F01127J70XP TRAY PACKING 1 P9 F01137J70XP TRAY PACKING 1 P10 F06027J70XP OVEN RACK 1 P11 F60037J70XP CERAMIC CO...

Page 39: ...10 24 2016 water png 439 315 file C Users sh dehghani Desktop NN GS595AOTSVC_PHAMOS0511035C3 viewing SGML_VIEW_DATA OT NN GS595A SVC PHAMOS0511035C3 doc 1 1 ...

Page 40: ...10 24 2016 escut png 520 458 file C Users sh dehghani Desktop NN GS595AOTSVC_PHAMOS0511035C3 viewing SGML_VIEW_DATA OT NN GS595A SVC PHAMOS0511035C3 doc 1 1 ...

Page 41: ...10 24 2016 doorass png 411 351 file C Users sh dehghani Desktop NN GS595AOTSVC_PHAMOS0511035C3 viewing SGML_VIEW_DATA OT NN GS595A SVC PHAMOS0511035C3 doc 1 1 ...

Page 42: ...10 24 2016 wiring png 487 287 file C Users sh dehghani Desktop NN GS595AOTSVC_PHAMOS0511035C3 viewing SGML_VIEW_DATA OT NN GS595A SVC PHAMOS0511035C3 doc 1 1 ...

Page 43: ...10 24 2016 packing png 525 384 file C Users sh dehghani Desktop NN GS595AOTSVC_PHAMOS0511035C3 viewing SGML_VIEW_DATA OT NN GS595A SVC PHAMOS0511035C3 doc 1 1 ...

Page 44: ...10 24 2016 circuit1 png 532 719 file C Users sh dehghani Desktop NN GS595AOTSVC_PHAMOS0511035C3 viewing SGML_VIEW_DATA OT NN GS595A SVC PHAMOS0511035C3 doc 1 1 ...

Page 45: ...10 24 2016 circuit2 png 533 719 file C Users sh dehghani Desktop NN GS595AOTSVC_PHAMOS0511035C3 viewing SGML_VIEW_DATA OT NN GS595A SVC PHAMOS0511035C3 doc 1 1 ...

Page 46: ...A108 CHIP CAPACITOR 15 0 1µF 25V C27 AESCT08F104M CAPACITOR 1 0 1µF 25V C40 C47 F1H1H102A896 CHIP CAPACITOR 8 C100 C221 F1H1H103A897 CHIP CAPACITOR 2 0 01µF 50V C320 C321 F1H1H220A894 CHIP CAPACITOR 2 22PF 50V CYT CZP CN1 K1KA04A00419 CONNECTOR 1 4 pin CN2 F03547J50XP LEAD WIRE HARNESS 1 5 pin CN3 K1KA06A00246 CONNECTOR 1 6 pin CN4 K1KA05A00236 CONNECTOR 1 5 Pin CN5 K1KA14A00201 CONNECTOR 1 14 Pin...

Page 47: ...40 Q132 2SD0601A0L CHIP TRANSISTOR 6 Q224 2SD0602ARL CHIP TRANSISTOR 1 Q226 2SB709A0L CHIP TRANSISTOR 1 Q130 Q210 Q228 UNR221M00L CHIP TRANSISTOR 3 Q540 NUR211M00L CHIP TRANSISTOR 1 Q225 UNR211100L CHIP DIGI TRANSISTOR 1 R11 R223 D0AE104JA155 CARBON RESISTOR 2 100K 1 4W 5 R13 D0AE222JA155 CARBON RESISTOR 1 2 2K 1 4W 5 R240 R241 D0AE241JA155 CARBON RESISTOR 2 240Ω 1 4W 5 R220 R221 D0AE391JA155 CARB...

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