Sharp R-342 Скачать руководство пользователя страница 25 | Manualshive

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E10

261400300036

FILTER NOISE

1

FES1E

E11

261201200030

FUSE

1

RT1-20 H 10A 250V

E13

263600500006

LAMP 1

240V

25W

E16

261201002830

POWER CORD ASS'Y

1

VDE 1M Black

E28

251203301548

ASS'Y H.V FUSE

1

800mA 5KV

E35

261201301200

THERMOSTAT 160/95 *V

1

L01

261301301500

BRKT INTERLOCK

1

E25L

L02

261301101001

LEVER SWITCH

1

E25L

L03

261201600180

MICROSWITCH INTERLOCK

2

16A 250V

L04

261201600160

MICROSWITCH MONITOR

1

16A 250V

L05

261202807270

HARNESS MAIN

1

EM925E-P00E-H1

T01

251200300001

MOTOR TRAY

1

TYJ50-8A7 220-240V

T02

252200100008

COUPLER

1

C23L PPS

T02

252200100008

COUPLER

1

C23L PPS

T03

262200200007

RING ROTATING ASS'Y

1

A28L PPS

T04

252100500013

TRAY

1

E25L Diameter315mm

W01

261300800100

GUIDE FAN

1

C23L

W02

251300900016

FAN

1

C23L

W03

261200600350

MOTOR FAN

1

220-240V

W04

261503202100

GUIDE WIND

1

A28L SGCC T=0.5

Z01

261501500300

HOLDER H.V.C

1

A23L SGCC T=0.5

Z24

261502640800

CASE OUT

1

E25L PCM T=0.5

251900100149

PACKING *T

1

E25L LK 177±15

251900200150

PACKING *U

1

E25L LK 133±10

261910000230

BIG PLASTIC BAG

1

21/23L

261862501047

CARTON BOX

1

R-342(IN)W

261800310254

MANUAL USER

1

251910100001

SMALL PLASTIC BAG

1

160*250

REPLACEMENT PARTS LIST

F

R-342(IN)W

or Model:

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Содержание R-342

Страница 1: ...HINGS TO DO PRIOR CHAPTER 13 SAFTY CHEC S AND TESTS AFTER CHAPTER 14 Parts List MICROWAVE OVEN R 342 SERVICE MANUAL MODEL CONTENTS SHARP CORPORATION This document has been published to be used for after sales service only The contents are subject to change without notice In interests of user safety the oven should be restored to its original condition and only parts identical to those specified sh...

Страница 2: ...or closing 3 seal and sealing surfaces arcing wear and other damage 4 damage to or loosening of hinges and latches 5 evidence of dropping or abuse C Before turning on microwave power for 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 misadjus...

Страница 3: ...AM 4 1 CIRCUIT DESCRIPTION 4 2 SERVICE INFORMATION 5 1 TOOLS AND MEASURING INSTRUMENTS 5 1 MICROWAVE LEAKAGE TEST 5 2 MEASUREMENT OF MICROWAVE POWER OUTPUT 5 3 TROUBLE SHOOTING PROCEDURES 5 4 COMMON BREAKDOWN AND MEANS OF REPAIRING 5 8 IMPORTANTTHINGSTODOPRIORTOCRITICALPARTSERVICING 5 9 SAFETY CHECKS AND TESTS AFTER SERVING 5 10 EXPLODED VIEW 6 1 REPLACEMENT PARTS LIST 6 1 ...

Страница 4: ...latch hole and the interlock switches area 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 during repair MICROWAVE RADIATION Personnel should not be exposed to the microwave energy which may radiate from the magnetron or other microwave generating device if it is improperly used or conn...

Страница 5: ...gth among the molecule and changed to microscopic microwave heating Microwave heating not only concerned the nature of the matter itself but also closely connected with the electric field strength and frequency When the frequency is low the molecule swaying rate and the acute degree of the mutual friction among the molecule is low and would produce much heat When the frequency is too high as the s...

Страница 6: ... and flat 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 BEFORE YOU BEGIN READ THE FOLLOWING INSTRUCTIONS COMPLETELY 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 ...

Страница 7: ...SCHEMATIC DIAGRAM ...

Страница 8: ...ir is also directed into the oven to exhaust the vapor in the oven through the upper plate Timer starts rotating 3 2 volts AC is generated from the filament winding of the high voltage transformer This 3 2 volts is applied to the magnetron to heat the magnetron filament through two noise preventing choke coils A high voltage of approximately 2100 volts AC is generated in the secondary of the high ...

Страница 9: ...microwave leakage Check for microwave leakage after every servicing The power density of the microwave radiation leakage emitted by the microwave oven should not exceed 5 mW cm2 Always start measuring of an unknown field to assure safety for operating personnel from radiation leakage NECESSARY MEASURING INSTRUMENTS TESTER VOLTS DC AC Ohmmeter Microwave survey meter Holaday HI 1710 A Narda 8100 820...

Страница 10: ...an 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 the oven surface this may possibly cause p...

Страница 11: ...d on the center of the turntable which is in the lowest 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...

Страница 12: ...nce Measure the insulating resistance with a multi meter or a mega ohmmeter The value should not less than 2 mega ohm Otherwise part examination should be taken at once Such as checking whether the motor the thermal cutout the transformer or the capacitor are electricity leaking 2 Examination of the resistance value of the microwave oven Close the door set the time the oven is at operating conditi...

Страница 13: ...citor pole and the cabinet FIG 5 6 should be checked If the resistance value between the capacitor pole and the cabinet is the capacitor is normal Then check the earth of the magnetron s two filament to see whether they are short circuited FIG 5 7 If they are short circuited and the filament strikes the shell of the magnetron it indicates the magnetron has broken and should be replaced by a new sa...

Страница 14: ...st the upper screw Loosen out the screw push the door close to the oven to hook the door hook with the plastic parts then tighten the screw again If the leakage is larger at the right below then adjust the lower screw Loosen the screw push the door close to the oven to hook the door hook with the switch holder tightly then tighten the screw again and open and close the door repeatedly to check whe...

Страница 15: ...l cutout is playing its protective role and you should check whether the fan is working in normal Turn off the oven pull out the power plug take down the outer case discharge the capacitor then turn the fan with hand to see whether it is moving flexibly If not it indicates that the oil bearing of the fan motor has run off the oil and should take down the fan combination to repair the motor Loosen ...

Страница 16: ... Turntable Motor Wire leads removed Measure the resistance Ohm meter scale R 1000 Normal Approx 3 2kΩ Abnormal or Several Ω NOTE z A MICROWAVE LEAKGE TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS SERVICED FOR ANY REASON z MAKE SURE THE WIRE LEADS ARE IN THE CORRECT POSITION z WHEN REMOVING THE WIRE LEADS FROM THE PARTS BE SURE TO GRASP THE CONNECTOR NOT THE WIRES 5 8 ...

Страница 17: ...2 Insert the plug securely 3 Change the weave 5 The oven can heat within 2 3 minutes but can not heat from the fourth minutes 1 The winding of the fan motor in open circuited 2 The fan falls off 3 The plug of the fan motor falls off 4 The turntable shaft is griped with the motor bearing 5 The cooling vent blocked 1 Change the fan motor 2 Change the fan 3 Insert the plug 4 Overhauling them 5 Repair...

Страница 18: ...eck the electrical continuity 2 2 Make sure the power cord is pulled out and the high voltage capacitor is discharged before the electrical continuity check 2 3 Set the ohmmeter to Low Resistance range and connect both leads alligator clips to the switch terminals 2 4 Open the door and notice the meter reading The primary or secondary interlock switch should show an infinite resistance when the do...

Страница 19: ...1 3 Check the following items before turning the oven ON 1 Proper door closing seal choke surfaces and hinges 2 No outer case damage 3 Proper interlock and monitor operations Insulation Resistance Test If the low voltage power supply has been repaired use a 500 V Mega ohmmeter to measure the resistance between the primary Line and Neutral of the power plug and operator accessible metal parts The r...

Страница 20: ...ECO MEMBRAN R 342 ...

Страница 21: ...R 342 ...

Страница 22: ...209130 SWITCH CIRCUIT 1 C55 261515901000 SHIELD 1 SGCC T 0 5 D01 251500200108 ASS Y DOOR FRAME 1 E25L SPCD T 0 6 D02 251300500046 LATCH 1 A28L D03 252010000000 SPRING LATCH 1 25L D04 256502400556 ASS Y BRKT HINGE T 1 A28L SPCC T 2 0 D05 252200400382 BARRIER SCREEN I 1 E25L PET D06 262100402834 BARRIER SCREEN O 1 D07 261300141102 PANEL DOOR 1 E25L White D07 261300141102 PANEL DOOR 1 E25L White D08 ...

Страница 23: ...A 250V L05 261202807270 HARNESS MAIN 1 EM925E P00E H1 T01 251200300001 MOTOR TRAY 1 TYJ50 8A7 220 240V T02 252200100008 COUPLER 1 C23L PPS T03 262200200007 RING ROTATING ASS Y 1 A28L PPS T04 252100500013 TRAY 1 E25L Diameter315mm W01 261300800100 GUIDE FAN 1 C23L W01 261300800100 GUIDE FAN 1 C23L W02 251300900016 FAN 1 C23L W03 261200600350 MOTOR FAN 1 220 240V W04 261503202100 GUIDE WIND 1 A28L S...

Страница 24: ...SGCC T 0 5 D01 251500200108 ASS Y DOOR FRAME 1 E25L SPCD T 0 6 D02 251300500046 LATCH 1 A28L D03 252010000000 SPRING LATCH 1 25L D04 256502400556 ASS Y BRKT HINGE T 1 A28L SPCC T 2 0 D05 252200400382 BARRIER SCREEN I 1 E25L PET D06 262100402834 BARRIER SCREEN O 1 D06 262100402834 BARRIER SCREEN O 1 D07 261300141101 PANEL DOOR 1 E25L Silver D08 256300600075 GASKET DOOR 1 E28L Black E01 251200100068...

Страница 25: ...RAY 1 TYJ50 8A7 220 240V T02 252200100008 COUPLER 1 C23L PPS T02 252200100008 COUPLER 1 C23L PPS T03 262200200007 RING ROTATING ASS Y 1 A28L PPS T04 252100500013 TRAY 1 E25L Diameter315mm W01 261300800100 GUIDE FAN 1 C23L W02 251300900016 FAN 1 C23L W03 261200600350 MOTOR FAN 1 220 240V W04 261503202100 GUIDE WIND 1 A28L SGCC T 0 5 Z01 261501500300 HOLDER H V C 1 A23L SGCC T 0 5 Z24 261502640800 C...

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