Panasonic NN-ST652WRUN Скачать руководство пользователя страница 27 | Manualshive

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5-17

(TROUBLE 6) Oven does not cook properly when programmed for the set power level

(Operates properly on HIGH)

CONDITION

CHECK

RESULT

CAUSE

REMEDY

Output is full when

you set lower
power level.

Abnormal.

Disconnect the
wire leads from
relay 2 and check
continuity relay 2.
(Operate the unit)

Defective P.C.B.
assembly.

Replace P.C.B.
assembly.

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Содержание NN-ST652WRUN

Страница 1: ...d 50 seconds W x H x416 D mm 2M219J Panasonic Corporation 2012 Unauthorized copying and distribution is a violation of law Model No NN ST652WRUN Volts AC 60 Hz Order No MOD1006319 PE White Brazil NN ST652WRUK 220 1 650 Watts 8 0 A Single phase 3 wire grounded Volts AC 60 Hz NN ST652WRUN NN ST652WRUK 127 Weight 14 2kg approx 2 450 MHz Internal Capacity 32L 900 Watts full microwave power IEC60705 32...

Страница 2: ...r any service test or inspection within the microwave generating compartments check the magnetron wave guide or transmission line and cavity for proper alignment integrity and connections D Any defective or misadjusted components in the interlock monitor door seal and microwave generation and transmission systems shall be repaired replaced or adjusted by procedures described in this manual before ...

Страница 3: ...QUENCE 4 2 SCHEMATIC DIAGRAM 4 3 CIRCUIT DESCRIPTION 4 4 SERVICE INFORMATION 5 1 TOOLS AND MEASURING INSTRUMENTS 5 1 MICROWAVE LEAKAGE TEST 5 1 MEASUREMENT OF MICROWAVE POWER OUTPUT 5 3 DISASSEMBLY AND ADJUSTMENT 5 3 INTERLOCK CONTINUITY TEST 5 7 COMPONENT TEST PROCEDURE 5 8 TROUBLE SHOOTING 5 12 EXPLODED VIEW 6 1 REPLACEMENT PARTS LIST 7 1 SCHEMATIC DIAGRAM OF P C B 8 1 ...

Страница 4: ...recommended for commercial purposes DESCRIPTION Microwave Power for Variable Cooking Power level ITEM Control Complement Rating Label Location Accessories Inside I Glass Tray Ro R ller ing Instruction manual 270 Watts Max Low Medium High Medium Medium Low 900 Watts 720 Watts 540 Watts 90 Watts ...

Страница 5: ...tron be assembled to the waveguide and cavity Never operate the magnetron unless it is properly installed Be sure that the magnetron gasket is properly installed around the dome of the tube whenever installing the magnetron 2 1 CAUTIONS Unlike other appliances the microwave oven is high voltage and high current equipment Though it is free from danger in ordinary use extreme care should be taken du...

Страница 6: ...lat surface at least 10 cm 4 inches from the wall 7 Place the microwave oven as far away as possible from TV RADIO COMPUTER etc to prevent interference EARTHING INSTRUCTIONS This microwave oven is designed to be used in a fully earthed condition It is imperative therefore to make sure it is properly earthed before servicing WARNING THIS APPLIANCE MUST BE EARTHED IMPORTANT As the colors of the wire...

Страница 7: ...ab Serving Weight Tab Stop Cancel Tab Before Cooking one tap cancels the inserted instructions During Cooking one tap temporarily stops the cooking process Another tap cancels cooking Start Tab One tap begins oven functioning Beep Sound When a pad is pressed correctly a beep will be heard If a pad is pressed and no beep is heard the unit did programmed stages At the end of any not or cannot accept...

Страница 8: ...s Clock top Desired defrost Desired Start program weight Using this system will make the oven inoperable however the door can be opened Child Lock can be set when the display shows a colon or the time Press Start Pad 3 consecutive times The display will the indication on the word LOCK To Cancel Press Stop Pad 3 consecutive times The colon or the time will be displayed again on the display TO Set S...

Страница 9: ...SCHEMATIC DIAGRAM 4 3 ...

Страница 10: ...gh voltage capacitor The negative 4000 Volts DC is applied to the filament of the magnetron WHEN THE OVEN IS SET AT ANY LEVEL EXCEPT MAXIMUM The micom controller controls the ON OFF time of relay 2 by the applied signal to vary the average output power of microwave oven as POWER LEVEL refer to page 1 1 WHEN THE DOOR IS OPENED DURING COOKING Both the primary switch and relay 2 are cut off primary w...

Страница 11: ...hich is graduated to 600 cc and place the beaker on the center of the turntable Set the energy leakage monitor to 2450 MHz and use it following the manufacturer s recommended test procedure to assure correct result When measuring the leakage always use the 2 inch 5cm spacer supplied with the probe Operate the oven at its maximum output Measure the microwave radiation using and electromagnetic radi...

Страница 12: ...e test probe must be removed no faster than 1 inch sec 2 5 cm sec along the shaded area otherwise a false reading may result The test probe must be held with the grip portion of the handle A false reading may result if the operator s hand is between the handle and the probe When testing near a corner of the door keep the probe perpendicular to the surface making sure the probe horizontally along t...

Страница 13: ...est position and the microwave power switched on The time T for the temperature of the water to rise by a value T of 10 2 K is measured where T is the time in seconds and T is the temperature rise The initial and final water temperatures are selected so that the maximum difference between the final water temperature and the ambient temperature is 5 K 4187 x T 0 55 X T2 T0 X M T T2 Temperature afte...

Страница 14: ...gh voltage capacitor 2 Disconnect the leadwire from magnetron high voltage transformer and capacitor 3 Remove the screw holding the high voltage transformer to the baseplate to the Cavity Ass y 2 Remove two screws holding the Hinge F 1 Discharge the high voltage capacitor 2 Disconnect the leadwire from fan motor noise filter and high voltage capacitor 3 Remove the two screws holding the orifice ov...

Страница 15: ...t the leadwire from the turntable motor terminals 6 Remove the screw securing the turntable motor to the oven cavity ASS Y 7 After rep the motor rotate the removed turntable motor cover 8 Fit the turntable motor cover s projecting part to the base plate slit NOTE 1 Remove the wire lead from the turntable motor VERY CAREFULLY Waveguide Magnetron Gasket Magnetron Dome Waveguide Bracket Magnetron 2 W...

Страница 16: ...the mounting screw Check for play in the door by pushing the door release button Door movement should be less than 0 5 mm 1 64 inch Don t push the door release button while making adjustment Make sure that the latch moves smoothly after adjustment are completed and that the screws are tight Make sure the primary monitor and secondary switches operate properly by following the continuity test proce...

Страница 17: ...n circuit in the door open condition When the door is closed meter should indicate an closed circuit When the secondary switch operation is abnormal make the necessary adjustment or replace the switch only with the same type of switch C MONITOR SWITCH TEST Disconnect the wire lead from the monitor switch Connect the ohmmeter leads to the common COM and normally closed NC terminals of the switch Th...

Страница 18: ...EDURE RESULTS HIGH VOLTAGE TRANSFORMER Wire leads removed MAGNETRON Wire leads removed 1 Measure the resistance Ohm meter scale Rx1 Primary winding Secondary winding Filament winding 2 Measure the resistance Ohm meter scale Rx1000 Primary winding to ground Filament winding to ground 1 Measure the resistance Ohm meter scale Rx1 Filament terminal 2 Measure the resistance Ohm meter scale Rx1000 Filam...

Страница 19: ...x10000 Measure the continuity Reverse Ohm meter scale Rx10000 Normal Momentarily indicates several ohms and then gradually returns to Normal Normal Abnormal Continuity NOTE When testing the magnetron be sure to install the magnetron gasket in the correct position and be sure that the gasket is in good condition Antenna Gasket Chassis Filament 10M ohms NOTE Some inexpensive meters may indicate infi...

Страница 20: ...ation replace the defective switch and the fuse at the same time Replace just the fuse if the switches operate normally Normal Abnormal Below specified temperature specified temperature Above L V Transformer of P C B Refer to schemetic diagram 1 3 5 Check for P C B connector Disconnect the 3 pin connector from P C B Normal Abnormal RELAY 2 RELAY 3 OF P C B Wire leads removed Note Relay Relay 1 Fan...

Страница 21: ...e resistance Ohm meter scale R x 1000 Normal Abnormal or several Ω Abnormal or several NOTE A MICROWAVE LEAKAGE TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS SERVICED FOR ANY REASON MAKE SURE THE WIRE LEADS ARE IN THE CORRECT POSITION WHEN REMOVING THE WIRE LEADS FROM THE PARTS BE SURE TO GRASP THE CONNECTOR NOT THE WIRES 00 500 1 Ω Normal Approx 100 200KΩ Ω ...

Страница 22: ... does not work Inserting many plug into one plug outlet and using them at the same time causes overloading Microwave oven plug is not inserted tightly Output power is too low Low AC input voltage Food temperature is too low Using metallic ware and allowing it to touch the oven wall Sparks occurring Inconsistent intensity of microwave by their characteristics 1 Wrap the thinner part with aluminum f...

Страница 23: ... setting cooking cycle 11 Display time of day does not reappear when cooking is finished 12 Beep sound is not heard when correct key is touched TROUBLE 1 The following visual conditions indicate a probable defective control circuit CONDITION CHECK RESULT CAUSE REMEDY 1 No input can be programmed Continuity No continuity Everything works as specified Still have trouble Defective PCB assembly Replac...

Страница 24: ...ch with door closed Check continuity of primary switch with door opened Disconnect one side of the wire lead connected from transformer to the high voltage capacitor and operate the unit Replace fuse TROUBLE 2 Oven does not operate at all Display window does not display any figures and no input is accepted NOTE All these switches must be replaced at the same time Refer to page 5 6 5 7 2 Fuse does ...

Страница 25: ...k continuity of secondary switch with door closed Check fan motor Check oven lamp Abnormal Abnormal Normal Defective fan motor Defective oven lamp Replace fan motor Replace oven lamp Loose connection Connection then tightly CONDITION CHECK RESULT CAUSE REMEDY Output is low Lower than 90 of rating voltage Normal Normal Abnormal Abnormal Measure the output power Disconnect the wire leads from relay ...

Страница 26: ...high voltage transformer Check H V transformer normal normal Abnormal Defective high voltage Diode Replace high voltage Diode Check H V diode Abnormal Defective high voltage capacitor Replace high voltage capacitor Check H V capacitor Abnormal Defective magnetron Replace magnetron Check Magnetron normal Abnormal Defective Protector Diode Replace Protector Diode Check Protector Diode TROUBLE 5 No m...

Страница 27: ...e set power level Operates properly on HIGH CONDITION CHECK RESULT CAUSE REMEDY Output is full when you set lower power level Abnormal Disconnect the wire leads from relay 2 and check continuity relay 2 Operate the unit Defective P C B assembly Replace P C B assembly ...

Страница 28: ...6 1 EXPLODED VIEW INTRODUCTION OVEN CAVITY PARTS INTERIOR PARTS BASE PLATE PARTS LATCH BOARD PARTS CONTROL PANEL PARTS DOOR PARTS ...

Страница 29: ...6 2 DOOR PARTS S03 D08 D05 D04 D01 D07 D06 D14 D03 D02 S05 ...

Страница 30: ...6 3 CONTROL PANEL PARTS C C18 S03 C 05 C01 C 17 C55 ...

Страница 31: ...6 4 OVEN CAVITY PARTS S05 S03 T02 T01 S07 T 04 T03 Z24 S07 A 00 D05 A 01 ...

Страница 32: ...6 5 LATCH BOARD PARTS L01 L04 L03 L02 L03 S05 S05 A ...

Страница 33: ...INTERIOR PARTS 6 6 S05 S10 E16 S06 S05 W01 W02 A00 E32 W04 E13 S07 E11 E12 W03 E01 S07 L05 ...

Страница 34: ...6 7 BASE PLATE PARTS B02 S07 B03 S07 E05 Z01 E07 E06 S07 S07 Z22 B01 B02 B02 B02 ...

Страница 35: ... HINGE 1 C01 261300268301 ESCUTCHEON BASE 1 C05 261820902853 ESCUTCHEON SHEET 1 C18 261400124990 PC BOARD U 1 C26 261400209450 MEMBRANE SWITCH 1 C55 261515903600 ESCUT BACK PLATE 1 D01 D02 D 03 D04 D0 5 D06 D07 D08 D14 263600205246 ASS Y DOOR 1 D01 251500200001 DOOR E 1 D02 251300500002 DOOR KEY A 1 D03 252010000000 DOOR KEY SPRING 1 D04 256502400556 TOP DOOR HINGE 1 D04 256502400556 TOP DOOR HING...

Страница 36: ...E MOTOR 1 T02 262200100006 PULLEY SHAFT 1 T03 262200200017 ROLLER RING U 1 T04 252100500587 GLASS TRAY 1 W01 251300800011 ORIFICE 1 W02 261300900400 FAN BLADE 1 W03 261200600370 FAN MOTOR 1 W04 261503202100 AIR GUIDE A 1 Z01 261501500301 CAPACITOR BRACKET 1 Z22 252200700003 CUSHION RUBBER 1 beside base plate Z24 261001100194 PCM Pre Coated Metal 1 691 0 5 383 1125 S03 257012800001 SCREW ST4 8PBHC ...

Страница 37: ...500200 LOWER HINGE 1 C01 261300268301 ESCUTCHEON BASE 1 C05 261820902853 ESCUTCHEON SHEET 1 C18 261400124990 PC BOARD U 1 C26 261400209450 MEMBRANE SWITCH 1 C55 261515903600 ESCUT BACK PLATE 1 D01 D02 D 03 D04 D0 5 D06 D07 D08 D14 263600205246 ASS Y DOOR 1 D01 251500200001 DOOR E 1 D02 251300500002 DOOR KEY A 1 D03 252010000000 DOOR KEY SPRING 1 D04 256502400556 TOP DOOR HINGE 1 D04 256502400556 T...

Страница 38: ...OTOR 1 T02 262200100006 PULLEY SHAFT 1 T03 262200200017 ROLLER RING U 1 T04 252100500587 GLASS TRAY 1 T04 252100500587 GLASS TRAY 1 W01 251300800011 ORIFICE 1 W02 261300900400 FAN BLADE 1 W03 261200600360 FAN MOTOR 1 W04 261503202100 AIR GUIDE A 1 Z01 261501500301 CAPACITOR BRACKET 1 Z22 252200700003 CUSHION RUBBER 1 beside base plate Z24 261001100194 PCM Pre Coated Metal 1 691 0 5 383 1125 S03 25...

Страница 39: ...R31 4K7 1 2 3 4 5 6 7 8 9 10 CN2 CON10 B C E Q1 S8050 1 2 GND DOOR CN2 E C B Q6 S8550 B C E Q2 S8050 B C E Q3 S8050 1 2 3 4 RLY1 GRIIL 1 2 3 4 RLY2 MICRO 1 2 3 4 RLY3 LAMP SWA SWB SWC SWD SWE key i n 5 键入5 key i n 4 键入4 key i n 3 键入3 key i n 1 键入1 key i n 0 键入0 key i n 2 键入2 R7 100K R36 47k R35 2K 烧烤非烧烤机型选择说明 1 烧烤型不装R36 装烧烤继电器部分电路包括R37 2 非烧烤型只装R36 不装烧烤继电器部分电路包括R37 VCC VCC D1 4148 D2 4148 D3 144...

Страница 40: ......

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