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Panasonic NN-GS597M, Service Manual

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Panasonic NN-GS597M Service Manual Download Page 28

9.6. How to check the semiconductors using an OHM meter

9.7. H.V. Inverter main parts list

Ref. No.

Part No.

Part Name & Description

Pcs/Set

Remarks

Q701

A691EM300BP

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

ECWH30562U03

FILM CAPACITOR

1

C707

ECWH30432U04

FILM CAPACITOR

1

28

NN-GS597M

Summary of Contents for NN-GS597M

Page 1: ...s reserved Unauthorized copying and distribution is a violation of law NN GS597M HPE Hong Kong YPQ Singapore MPQ Malaysia TPE Thailand Indonesia YTE Others KTE UAE PTE Iran KPQ Kuwait Doha Qatar Oman Bahrein Pakistan ZPE CIS Countries Microwave Oven ORDER NO PHAMOS0708040C3 ...

Page 2: ...2 NN GS597M ...

Page 3: ...3 NN GS597M ...

Page 4: ... 9 IR sensor 18 6 10 Stirrer motor 18 6 11 Heater DU steam heater 19 7 COMPONENT TEST PROCEDURE 20 7 1 Primary latch switch Secondary Latch switch and power relay RY3 20 7 2 Short switch monitor 20 7 3 Magnetron 20 7 4 Membrane key board Membrane switch assembly 20 7 5 Inverter power supply U 21 7 6 Temperature thermistor 21 7 7 IR Sensor 21 8 MEASUREMENTS AND ADJUSTMENTS 22 8 1 Adjustment of Prim...

Page 5: ...1 FEATURE CHART 2 CONTROL PANEL 5 NN GS597M ...

Page 6: ...3 SCHEMATIC DIAGRAM 6 NN GS597M ...

Page 7: ...operating conditions and output necessary to control PWM signal to the Inverter Power Supply for control of the output power 4 3 Steam defrost Auto cook Steam reheat When the Auto Control feature is selected and the Start button is tapped 1 The digital programer circuit determines the power level and cooking time to complete cooking and indicates the operating state in the display window Table sho...

Page 8: ...0 26 ON 7 OFF 2 24 9 26 ON 7 OFF 3 18 15 26 ON 7 OFF 4 6 IR reheat The temperature of food being heated is detected by an infrared IR sensor and you do not have to set time 4 6 1 How to read temperature by IR sensor IR sensor can read food temperature without touching IR rays are emitted from food IR sensor is to generate temperature related electric signal output and microcomputer is to convert a...

Page 9: ...ing start button 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 During heating the temperature sensor Thermistor located on steam heater will monitor steam heater temperature and when it exceeds 200 C the additional water will be supplied to maintain moisture steam within oven cavity 9 NN ...

Page 10: ... The aluminum heat sink may be HOT due to heat energy therefore extreme care should be taken during servicing H V Inverter warning WARNING FOR INVERTER POWER SUPPLY U GROUNDING Check the High Voltage Inverter Power Supply circuit grounding The high voltage inverter power supply circuit board must have a proper chassis ground The inverter grounding bracket must be connected to the chassis If the in...

Page 11: ...not bent broken or deficient in their ability to hold the switches 5 6 Avoid inserting nails wire etc through any holes in the unit during operation Never insert a wire nail or any other metal object through the lamp holes on the cavity or any holes or gaps because such objects may work as an antenna and cause microwave leakage 5 7 Verification after repair CAUTION After repair or replacement of p...

Page 12: ...imize the amount of water that leaks out Wipe up excess water throughly with the dry cloth CAUTION After repair or replacement of parts make sure that all the water pipes and tubes are properly connected otherwise the water might invade the electric parts and will cause a short circuit or electric shock 6 1 Magnetron 1 Discharge the high voltage capacitor 2 Remove 2 screws holding reinforce bracke...

Page 13: ...n to prevent microwave leakage CAUTION When replacing the magnetron be sure the antenna gasket is in place 6 2 Digital programmer circuit D P C DU and low voltage transformer 1 Remove 5 screws holding board cover D P C board DU on the reinforce bracket A 2 Disconnect all connectors on D P C board DU 3 Remove D P C board DU 4 Using solder wick or a desoldering tool and 30W soldering iron carefully ...

Page 14: ...tcheon base 13 Remove 2 screws holding D P C board AU big one on escutcheon base 14 Release locking tabs holding D P C board AU big one on escutcheon base then remove 5 screws holding D P C board AU small one on backstop to remove D P C board AU 15 Disconnect 1 flat cable connected from the membrane keyboard to connector CN7 on the D P C board AU To replace membrane key board 16 Use tools such as ...

Page 15: ...r terminals 8 Disconnect 2 high voltage lead wires from magnetron filament terminals 9 Unplug connector CN701 CN702 from H V Inverter board 10 Remove 1 screw holding air guide bracket on reinforce bracket B then release locking tabs detach air guide bracket 11 Release locking tabs connecting Inverter bracket A with Inverter bracket B detach bracket A B 12 Remove 2 screws holding H V Inverter on In...

Page 16: ...of the door reassemble it properly and adjustment so as to prevent an excessive microwave leakage Adjustment of the door assembly Refer page 22 3 When mounting the door to the oven be sure to adjust the door parallel to the cavity front plate by moving hinges back or forward 4 Adjust so that the upper portion of the door will touch firmly to the oven cavity front plate without pushing the door If ...

Page 17: ...l out tube B from inlet of pump 8 Remove 2 screws holding pump bracket on escutcheon base 9 Slide out pump bracket from bottom rail of escutcheon base 10 Slightly uplift the pump over the locking tabs on the pump bracket then slide the pump out 11 Pull out tube A from outlet of pump To install pump 1 Insert pump into pump bracket Inlet of pump must be aligned toward the harness clasp of pump brack...

Page 18: ... by breaking off at the 8 spots indicated by arrows with a cutter or the like NOTE After removing the motor cover be sure that cut portions are properly trimmed or bent to the Inside so that no sharp edges will be exposed to outside 2 Disconnect 2 lead wires from stirrer motor terminals 3 Remove 2 screws holding stirrer motor NOTE After reinstalling the new stirrer motor and reconnecting the 2 lea...

Page 19: ... left and right hinges on the bottom of cavity front plate 8 Remove base from oven assy 9 Disconnect 2 lead wires from heater DU terminals 10 Remove 1 screw holding thermistor on heater DU 11 Remove 6 screws holding heater DU thermal cutout bracket on the bottom of oven assy To install heater DU NOTE 1 Spread silicon grease evenly between the interface of heater DU and bottom of oven cavity about ...

Page 20: ... 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 were connected to Inverter Power Supply U 3 Test the continuity of short switch with door opened and closed positions using lowest scale of the ohm meter Normal continuity readings should be as follows Door Opened Door Closed 0Ω Close Ω Open 7...

Page 21: ...Start button a After approximately 3 seconds oven stops operating b During oven operation the input current is approximately 0 4A INPUT CURRENT FAILURE CODE Unplug CN701 0 4A Oven stops in 3 seconds after started If both a and b check OK the Inverter Power Supply U can be determined to be OK 7 6 Temperature thermistor These sensor monitors the heat produced by the heater circuit and maintains the ...

Page 22: ... front plate is 2 4mm if the door gap is greater than 4mm the Primary latch switch must be OFF If alignment is poor oven may not operate after oven grill use 8 2 Measurement of microwave output The output power of the magnetron can be determined by performing IEC standard test procedures However due to the complexity of IEC test procedures it is recommended to test the magnetron using the simple m...

Page 23: ...istaken for the oven s malfunction Self diagnostic display Oven has self diagnostic function but it will not be activated in normal operation mode To show self diagnostic result please take the following steps 1 Firstly you must program the DPC into TEST MODE Plug in oven press Timer Clock pad twice press Start button once press Micro Power pad once 2 Keep pressing Timer Clock pad for more than 2 ...

Page 24: ...ng 1 Magnetron 2 Loose lead wire connector CN703 3 H V Inverter U Oven stops in 1 minute after pressing Start button Oven function Oven thermistor circuit is not functioning 1 Oven thermistor 2 Loose wiring Oven stops in 30 seconds after pressing Start button Steam function Steam heater thermistor circuit is not functioning 1 Steam heater thermistor 2 Loose wiring 3 bad conductibility between ther...

Page 25: ...ection of high voltage circuit especially magnetron filament circuit NOTE Large contact resistance will cause lower magnetron filament voltage and cause magnetron to have lower output and or be intermittent Adjust door and latch switches 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 d...

Page 26: ...8 and H99 First you must program the DPC into TEST MODE press Timer Clock pad twice Press Start button once press Micro Power pad once Program unit for operation H95 H97 H98 H99 appears in display window a short time after Start button is pressed and there is no microwave oscillation Alternate way to troubleshoot oven with AC Ampere meter used H95 H97 H98 H99 appears in display window a short time...

Page 27: ...ars in window and oven stops operation Program High power for 1 minute and conduct following test quickly unless H95 H97 H98 appears and oven stops 1 Unplug CN702 2 pin connector and measure voltage between terminals Abnormal 0V 1 Latch Switch 2 D P C Power Relay Normal 220 240V Step2 2 Unplug CN701 3 pin connector and measure pin3 voltage Abnormal 0V D P C Approx AC 3V Magnetron 9 5 Simple way of...

Page 28: ...1 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 ECWH30562U03 FILM CAPACITOR 1 C707 ECWH30432U04 FILM CAPACITOR 1 28 NN GS597M ...

Page 29: ...10 EXPLODED VIEW AND PARTS LIST 10 1 EXPLODED VIEW 29 NN GS597M ...

Page 30: ...16 F31037J70XP DOOR HOOK 1 17 F31057J70XP LATCH BRACKET 1 18 F32497J70XP LATCH SWITCH LEVER 1 19 F612E5G50XN INCANDESCENT LAMP U 1 20 F60747J70XPG INCANDESCENT LAMP BRACKET 1 21 F64377J70XP GLASS 1 22 A010T6Y40HP MICROLITE GLASS U 1 HPE YPQ MPQ YTE TPE 22 A010T6Y40KT MICROLITE GLASS U 1 KTE PTE KPQ 22 A010T6Y40ZP MICROLITE GLASS U 1 ZPE 23 F202K7J70XPG ANTENNA STIRRER U 1 24 F61447J70XP STIRRER MO...

Page 31: ...2047J70XP TUBE D 1 60 F03348S80HP MENU LABEL 1 HPE YPQ MPQ YTE TPE 60 F03348S80KP MENU LABEL 1 KTE PTE KPQ 60 F03348S80ZP MENU LABEL 1 ZPE 62 XTWFA4 12T SCREW 4 MAGNETRON 63 XTWAFE4 12D SCREW 4 CABINET BODY 64 F22587J70XP ADIABATIC MATERIAL C 1 65 F22597J70XP ADIABATIC MATERIAL D 1 68 F40277Q30XP AIR GUIDE BRACKET 1 69 F15676Y40XP DRIP PLATE 1 71 F11657J50XP REINFORCE BRACKET C 1 72 F61458S80XP TH...

Page 32: ...R TANK ASSEMBLY Ref No Part No Part Name Description Pcs Set Remarks T1 F060Q7J70HN WATER TANK U 1 WITHOUT TANK COVER T2 F061A7J70HN WATER TANK BU 1 T3 F06117J70XP TANK COVER 1 T4 F44247J70XP SEAL 1 32 NN GS597M ...

Page 33: ... MPQ YTE TPE E3 F630Y8S80SKP MEMBRANE SWITCH U 1 KTE PTE KPQ E3 F630Y8S80SZP MEMBRANE SWITCH U 1 ZPE E4 F800A8S80SHP ESCUTCHEON BASE AU 1 HPE YPQ MPQ YTE TPE E4 F800A8S80SKP ESCUTCHEON BASE AU 1 KTE PTE KPQ E4 F800A8S80SZP ESCUTCHEON BASE AU 1 ZPE E5 F800B7J60SXP ESCUTCHEON BASE BU 1 E6 F803G8G00SBP POP UP DIAL U 2 E7 F80188S80XP BRACKET 1 E8 F81388S80XP BREAKWATER 1 E10 F400L6Y40XP PUMP LED U 1 I...

Page 34: ...302A8S80SXP DOOR B U 1 D3 F3044 1L40 DOOR ARM RIGHT 1 D4 F3085 1L40 DOOR C 1 D5 A3334 1L40 SEAL 1 D7 F3054 1L40 DOOR ARM LEFT 1 D9 A3230 1K20 DOOR KEY SPRING B 2 10 6 WIRING MATERIALS Ref No Part No Part Name Description Pcs Set Remarks W1 F030A8S80HP LEAD WIRE HARNESS 1 INCLUDING THERMISTOR W2 F030E 1L40 H V LEAD WIRE 1 34 NN GS597M ...

Page 35: ...F01078100XN DOOR SHEET 1 P7 F06217J70XP QUADRATE COOKING TRAY 1 P8 F01126Y40XP FOAM 1 P9 F01136Y40XP FOAM 1 P10 F06027J70XP OVEN RACK 1 P11 F60037J70XP CERAMIC COVER 1 P12 F01126Y40BP FOAM 1 P13 F06038S80HP CRISPY PAN 1 HPE YPQ P13 F06037J70XP CRISPY PAN 1 EXCEPT HPE YPQ P14 F000B8S80MP COOKING GUIDE 1 HPE YPQ MPQ YTE TPE P14 F000B7J70KP COOKING GUIDE 1 KTE PTE KPQ P14 F000B6V50ZP COOKING GUIDE 1 ...

Page 36: ...11 DIGITAL PROGRAMMER CIRCUIT 11 1 SCHEMATIC DIAGRAM 36 NN GS597M ...

Page 37: ...37 NN GS597M ...

Page 38: ... 1 IC10 C0DBAHD00013 IC 1 IC220 IC221 B1HBGFF00007 IC 2 IC350 C0ZBZ0001494 IC 1 IC25 MIP2F40MSSCF IC 1 IC26 IC27 B3PAA0000387 IC 2 IC309 C0ZBZ0001494 IC 1 IC222 B3PAC0000060 IC SSR 1 Q492 B1BAAJ000003 TRANSISTOR 1 Q493 UNR211600L TRANSISTOR 1 Q227 B1ACGF000004 AUDION 1 R231 D0AE102JA155 CARBON FILM RESISTOR 1 1K 1 4W 5 R211 R232 D0AE103JA155 CARBON FILM RESISTOR 2 10K 1 4W 5 R223 D0AE104JA155 CARB...

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