Panasonic NN-CS599S, Service Manual

Page 1: ... Panasonic Home Appliances Microwave Oven Shanghai Co Ltd 2009 NN CS599S HPE Hong Kong YPQ Singapore MPQ Malaysia TUE India YTE Others PTE Iran Microwave Oven ORDER NO PHAMOS0906032C3 ...

Page 2: ...2 NN CS599S ...

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Page 4: ... sensor 18 6 9 Stirrer motor 18 6 10 Pump motor 19 6 11 Heater DU steam heater 20 6 12 Convection motor and convection heater 21 7 COMPONENT TEST PROCEDURE 23 7 1 Primary Secondary Latch Switch interlocks Power Relay RY1 23 7 2 Short Switch 23 7 3 Magnetron 23 7 4 Membrane key board Membrane switch assembly 23 7 5 Inverter power supply U 24 7 6 Temperature thermistor 24 7 7 IR sensor 24 8 MEASUREM...

Page 5: ...1 FEATURE CHART 2 CONTROL PANEL 5 NN CS599S ...

Page 6: ...3 SCHEMATIC DIAGRAM 6 NN CS599S ...

Page 7: ...Control feature is selected and the Start pad 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 shows the corresponding cooking times for respective serving by categories Steam Defrost SELECTED WEIGHT COOKING TIME 1 0 kg 15 min 50 sec Auto Cook Vegetable SELECTED WEIGHT COOKING TIM...

Page 8: ...relay RY9 s ON OFF time In all three combination cooking categories power relay RY1 always stay on but RY9 s ON OFF time as shown in Figure COMBINATION CATEGORY GRILL RY9 MICROWAVE RY1 ON sec OFF sec 1 33 0 ON 2 24 9 ON 3 18 15 ON 4 6 Grill cooking control Grill cooking is accomplished by upper heaters only One grill cooking cycle is 33 seconds 1 During grill cooking the digital programmer circuit...

Page 9: ...ys are emitted from food IR sensor is to generate temperature related electric signal output and microcomputer is to convert actual temperature 4 7 2 Operation IR sensor is mounted on top right of oven cavity through the hole It scans all over cooking shelf IR sensor has 8 eyes and can read oven shelf left to right at the time Then IR sensor is designed to scan front to back to cover all over shel...

Page 10: ...g 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 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 10 NN CS59...

Page 11: ...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 reinforcement and grounding bracket must be connected to the chassis If the inv...

Page 12: ...nting tabs are 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 r...

Page 13: ...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 see page 10 for instructions 2 Remove 2 screws holding the inverter reinforceme...

Page 14: ... pump from copper pipe 4 Disconnect wiring connectors CN3 CN4 CN8 and all connectors connecting to power relays from D P C board HU relay board 5 Disconnect wiring connector CN2 from D P C board DU power supply board 6 Remove 1 screw holding escutcheon base on cavity front plate 7 Open the door of oven slide the escutcheon base upward and out slightly 8 Disconnect connector CN6 connecting pump LED...

Page 15: ...contacts carefully 6 4 H V Inverter 1 Discharge high voltage remaining in high voltage capacitor 2 Remove 2 screws holding the inverter reinforcement grounding bracket A on oven cavity 3 Remove 2 screws holding inverter reinforcement bracket B on cavity top plate 4 Remove 1 screw holding oven thermistor on cavity top plate 5 Release lead wire harness from locking tabs on Inverter bracket A 6 Disco...

Page 16: ...m oven assy 4 Remove fan blade from fan motor shaft by pulling it straight out 6 6 Upper heaters There are two kinds of heater on the top of oven cavity Both the front one back one are 450W 110V heaters and the center one is 450W 220V heater 1 Disconnect lead wires from both sides of 3 upper heaters 2 Remove 3 screws holding heater support from the left side of microwave oven 3 Remove the heater b...

Page 17: ...crowave leakage Adjustment of the door assembly Refer page 25 2 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 3 Adjust so that the upper portion of the door will touch firmly to the oven cavity front plate without pushing the door If the door assembly is not mounted properly microwave power may leak from the cleara...

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: ...let of pump motor 8 Remove 2 screws holding pump motor bracket on escutcheon base 9 Slide out pump bracket from bottom rail of escutcheon base 10 Slightly uplift the pump motor over the locking tabs on the pump motor bracket then slide the pump motor out 11 Pull out tube A from outlet of pump motor To install pump motor 1 Insert pump motor into pump motor bracket Inlet of pump motor must be aligne...

Page 20: ... the 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 ab...

Page 21: ...4 Remove 1 screw holding back cover on the lower of back plate then remove back cover and back cover C module 5 Release 3 metal tabs which are holding the insulated wire harness to the convection outside cover B 6 Disconnect 2 lead wires from thermal cutout and convection motor terminals respectively 7 Remove 4 screws holding convection outside cover B on cavity back plate 8 Remove 4 screws shown ...

Page 22: ...ection motor and convection heater To replace convection heater 11 Remove 1 screw holding heater bracket A on convection inside cover A 12 Remove 2 screws holding convection heater on convection inside cover A To replace convection motor 13 Remove 1 nut holding convection fan then remove convection fan 14 Remove 3 screws holding convection fan bracket on convection inside cover A 15 Remove 2 screw...

Page 23: ...ort Switch 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 3 Magnetron ...

Page 24: ...oximately 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 magnetron temperature whi...

Page 25: ...ion of door A and cavity 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 convection 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 th...

Page 26: ...or may be mistaken 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 pad once press Micro Power pad once 2 Keep pressing Timer Clock pad for more...

Page 27: ...oose lead wire connector CN703 Oven stops in 1 minute after pressing start pad Convection Grill convection cooking Oven thermistor circuit is not functioning 1 Oven thermistor 2 Loose wiring Oven stops in 30 seconds after pressing start pad Steam cooking Steam heater thermistor circuit is not functioning 1 Steam heater thermistor 2 Loose wiring 3 bad conductibility between thermistor and steam hea...

Page 28: ...s 2 Open or loose connection 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 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 ...

Page 29: ...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 30: ...l Display H95 H97 H98 appears 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 M...

Page 31: ...F5184N300 FILM CAPACITOR 1 C702 ECQE2505T869 FILM CAPACITOR 1 C703 ECWF2395N632 FILM CAPACITOR 1 DB701 B0FBBS000001 RECTIFIER BRIDGE 1 L701 F5020M300XN CHOKE COIL 1 R702 D0CM352JA002 SAND BAR RESISTOR 1 T701 A609A7F40QP TRANSFORMER 1 INCLUDING D701 D702 C706 C707 D701 D702 B0FBAZ000002 DIODE 2 C706 F0C3F562A002 FILM CAPACITOR 1 5600PF 3KV C707 F0C3F432A002 FILM CAPACITOR 1 4300PF 3KV 31 NN CS599S ...

Page 32: ...10 EXPLODED VIEW AND PARTS LIST 10 1 EXPLODED VIEW 32 NN CS599S ...

Page 33: ...HP CERAMIC PLATE U 1 HPE YPQ MPQ YTE 22 A010T6Y40BP CERAMIC PLATE U 1 TUE PTE 23 F202K6Y40XPG ANTENNA STIRRER U 1 24 F61447J70XP STIRRER MOTOR 1 25 F20197J70XP ANTENNA BRACKET 3 26 F61425U30XN 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 F603Y6Y40XP D P CIRCUIT DU 1 30 F623...

Page 34: ...706Y40BP HEATER MOUNTING PLATE 1 74 F22394V00BP CONVECTION FAN BLADE 1 75 F41594V00BP COOLING FAN BLADE 1 77 F50579A50BP COVER 1 79 F41806Y40BP CONVECTION FAN BRACKET 1 80 F490S6Y40XP CONVECTION FAN MOTOR 1 81 F631D6Y40XP CONVECTION HEATER 1 HPE TUE YTE PTE 81 F631D6Y40BP CONVECTION HEATER 1 YPQ MPQ 82 F64174V00BP HEATER BRACKET A 1 83 F66796Y40BP CONVECTION INSIDE COVER A 1 85 F607J6Y40BP CONVECT...

Page 35: ...TANK ASSEMBLY Ref No Part No Part Name Description Pcs Set Remarks T1 F060Q6Y40XP WATER TANK U 1 INCLUDING TANK COVER SEAL T2 F061A6Y40XP WATER TANK 1 T3 F06116Y40XP TANK COVER 1 T4 F44247J70XP SEAL 1 35 NN CS599S ...

Page 36: ...E SWITCH U 1 TUE PTE E4 F800A9K10SHP ESCUTCHEON BASE U 1 HPE YPQ MPQ YTE INCLUDING MEMBRANE SWITCH U E4 F800A9K00SPT ESCUTCHEON BASE U 1 TUE PTE INCLUDING MEMBRANE SWITCH U E5 F800B9K00SPT ESCUTCHEON BASE BU 1 E6 F803G8J00SXP POP UP DIAL U 2 E10 F400L 1M60 PUMP LED U 1 INCLUDING PUMP LED PCB E11 F83876Y40QP BUTTON 1 E12 F06397J70XP PUMP BRACKET 1 E13 F66166Y40BP FLAT CABLE 1 WIDE ONE E14 F66166Y40...

Page 37: ...marks D1 F390L9A50SEP DOOR U 1 INCLUDING DOOR C SEAL D2 F30859A00WT DOOR C 1 D3 A3334 1L40 SEAL 1 D4 F3054 1M60 DOOR ARM LEFT 1 D5 F3044 1L40 DOOR ARM RIGHT 1 D6 F32309A50BP DOOR KEY SPRING B 1 D7 A3230 1K20 DOOR KEY SPRING B 1 D8 F302A9A50SEP DOOR B U 1 37 NN CS599S ...

Page 38: ...10 6 WIRING MATERIALS Ref No Part No Part Name Description Pcs Set Remarks W1 F030A9K00PT LEAD WIRE HARNESS 1 W2 F030E 1L40 H V LEAD WIRE 1 38 NN CS599S ...

Page 39: ...6Y40XP 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 MPQ TUE YTE PTE P14 F000B6Y40HP COOKING GUIDE 1 HPE YPQ MPQ TUE YTE P14 F000B6Y40KT COOKING GUIDE 1 PTE P15 F01926Y40XP SHEET 1 P17 F01096Y40XP SHEET 1 P18 F01896Y40XP PROTECT CORNER 2 P20 F00166Y40HP NOTE 1 HPE YPQ MPQ TUE YTE P23 F0731...

Page 40: ...11 DIGITAL PROGRAMMER CIRCUIT 11 1 SCHEMATIC DIAGRAM 40 NN CS599S ...

Page 41: ...41 NN CS599S ...

Page 42: ...C221 B1HBGFF00007 IC 2 IC350 C0EBH0000264 IC 1 IC26 IC100 B3PAA0000387 IC 2 IC28 MIP0255SPSCF IC 1 IC220 B3PAC0000060 IC SSR 2 Q492 B1BAAJ000003 TRANSISTOR 1 Q493 UNR211600L TRANSISTOR 1 Q227 B1ACGF000004 AUDION 1 R10 D0AE470JA155 CARBON FILM RESISTOR 1 47Ω 1 4W 5 R210 R220 R221 D0AE391JA155 CARBON FILM RESISTOR 3 390Ω 1 4W 5 R240 D0AE751JA155 CARBON FILM RESISTOR 1 750Ω 1 4W 5 R231 D0AE102JA155 C...