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INSTALLATIONS 

 

INSTALLING 

1. Empty the microwave oven and clean inside it with 

a soft, damp cloth. Check for damage such as 

misaligned door, damage around the door or dents 

inside the cavity or on the exterior. 

 

2. Put the oven on a counter, table, or shelf that is 

strong enough to hold the oven and the food and 

utensils you put in it. (The control panel side of the 

oven is the heavy side. Use care when handling.) 

 

3. Do not block the vent and the air intake openings. 

Blocking vent or air intake openings can cause 

damage to the oven and poor cooking results. 

Make sure the microwave oven legs are in place to 

ensure proper air flow. 

 

4. The oven should not be installed in any area where 

heat and steam are generated, because they may 

damage the electronic or mechanical parts of the 

unit. 

Do not install the oven next to a conventional 

surface unit or above a conventional wall oven. 

 

5. Use microwave oven in an ambient temperature 

less than 104°F(40°C). 

 

6. Place the microwave oven on a sturdy 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-   

THIS  APPLIANCE 

MUST BE EARTHED 

IMPORTANT

 

 

The wires in this mains lead are colored in 

accordance with the following code: 

Green-and-yellow:              Earth 
Blue:                                      Neutral 
Brown:                                  Live

 

As the colors of the wires in the mains lead of this 

appliance may not correspond with the colored 

markings identifying the terminals in your plug, 

proceed as follows. 

 

The wire which is colored 

green-and-yellow 

must be 

connected to the terminal in the plug which is marked 

with the letter 

or by the 

earth symbol 

(

 ) or 

colored 

green 

or 

green-and-yellow

 

The wire which is colored 

blue 

must be connected to 

the terminal in the plug which is marked with the letter 

or colored 

black

 

The wire which is colored 

brown 

must be connected 

to the terminal in the plug which is marked with the 

letter 

or colored 

red

3-1 

Summary of Contents for AG930AZJ-P00C

Page 1: ...MICROWAVE OVEN MODEL 220V50Hz SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT READTHE SAFETY PRECAUTIONS IN THIS MANUAL AG930AZJ P00C 9 00W...

Page 2: ...r 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 te...

Page 3: ...M 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 BR...

Page 4: ...atch 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 tak...

Page 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...

Page 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 INSTRUC...

Page 7: ...SCHEMATIC DIAGRAM...

Page 8: ...e negative 4 000 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...

Page 9: ...icrowave 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...

Page 10: ...n 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...

Page 11: ...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 th...

Page 12: ...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...

Page 13: ...itor 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 t...

Page 14: ...t 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...

Page 15: ...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 th...

Page 16: ...Turntable Motor Wire leads removed Measure the resistance Ohm meter scale R 1000 Normal Approx 3 2k Abnormal or Several NOTE z A MICROWAVE LEAKGE TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS SERVICE...

Page 17: ...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...

Page 18: ...ck 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...

Page 19: ...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...

Page 20: ...24 TONE PF0 25 T2 PF1 26 PF2 27 PF3 28 SINO SH69P26 IC1 SH69P26 28PIN RESET ZERO LED 1 LED 2 LED 4 C7 471 C8 471 C9 471 C6 471 R28 20K BUZ1 R3 4 7K R1 3 3k BUZZER R2 2K R22 4K7 R23 4K7 LED 3 R24 4K7...

Page 21: ...5 4 3 2 1 D C B A Title Number Revision Size B Date 18 Sep 2012 Sheet of File D MyData 1 DDB Drawn By SW4 1 2 3 4 5 10PIN PCB 1 10PIN 10 GND 2 3 10 GND SW5 SW2 SW6 SW7 30 SW3 SW1 B1 SW_CONDER 1 2 3 4...

Page 22: ...AG930AZJ...

Page 23: ...E02 E04 E02 W IRE T HERMOSTAT_FILTE E04 WIRE HEATER_THERMOSTA E02 E02 WIRE HEATER AG930AZJ P00C...

Page 24: ...0068 Magnetron Magnetron 2M219J E522 900W 1 E01 261502637100 Outer Cover Outer Cover A28L PCM T 0 5 1 Z24 251502610243 Outer Cover PCM white color plate outer cover T 0 5 with blue easy to tear film a...

Page 25: ...cs ctn 10 layers 1 W02 261200300080 Turntable Motor Turntable Motor MDS 4A BTTB 220 240V50Hz60 Hz CL B EKXINTE 1 T01 261501500301 Capacitor Clamp RoHS Capacitor Clamp C23L SGCC T 0 5 with packge stuff...

Page 26: ...261502701300 Upper Insulating Plate Upper Insulating Plate 1 G09 251501000005 Quartz Supporter Quartz Supporter 1 G06 251202700230 Connector RoHSConnect or 120mm 3122 1 E04 E21 251202701535 Grill Tube...

Page 27: ...KV 350mA T3512 1 E07 251202701048 Harness Harness between filter and magnetron 1 E02 251203301548 H V Fuse H V Fuse GERF 800mA SONGSHAN 1 E28 261203300080 H V Fuse H V Fuse 800mA 5KV 721 1 E28 2612012...

Page 28: ...Metal Air Guide A28L SGCC 0 5mm 1 W04 251201600002 Interlock Switch RoHS Interlock Switch KW3A 10T t OPEN 16A 250V T105 187 2 L03 261201600080 Interlock Switch RoHS Interlock Switch 16A 250V T105 LF 1...

Page 29: ...252200100008 T T Driver RoHS T T Driver HG23L PPS 7130140008 1 T02 252200700003 Air Guide Sponge RoHS Air Guide Sponge 17L 7130790001 1 256302002770 Foot RoHS Foot apply to new platform black PPT30 4...

Page 30: ...1MM 1 GND 269004 Connection Peg 187 Connection Peg 4 8 0 5mm length 3 5 1MM 4 N L OUT N OUT 261003 Carbon Resistor Carbon Resistor 510K 1 2W 5 distance 15mm length 4 1MM 1 R1 264020 PCB PCB MDFLT25A...

Page 31: ...inge ass y cavity 2 Air guide 1 filter grounding 257012800016 Screw RoHS Screw 4 25TWBHC 2 Fan motor Fan support 2 257012800009 Screw OHS Screw ST3 10PWTH C 3 Thermostat magnetron 2 Filter Fan support...

Page 32: ...7 electrolytical capacitance RoHS Electrolytical capacitance E_220u_16_D 6 3H11_M_10 5_CKD 5 0mm 1 E104 263001200036 electrolytical capacitance RoHS electrolytical capacitance E_10u_50_D5 H11_M_105 f...

Page 33: ...0002 color wheel inductors ROHS color wheel inductors L_LGA0410 222KT52E_2 2mH K T52 1 L101 263000100004 metal oxide film resistors ROHS metal oxide film resistors RY_220K_1W _J 1 RY 263000200001 wire...

Page 34: ...MDA 3482AHG_CK D 45 35 21 5 red green 1 LED1 253005400233 Crystal oscillator ROHS Crystal oscillator OSC_4M_2_3 0PPM_CKD 1 CSA1 251402200958 sinle chip microcompute rs ROHS empty chip SH69P26 chip wi...

Page 35: ..._Z_C KD 3 C15 C16 C10 2 253001100246 Smt CAP RoHS Smt CAPC_0805_ 15P_50_NPO _J_CKD 2 C13 C14 253001100182 Smt CAP RoHS Smt CAP C_0805_103_ 50_X7R_K_C KD 1 C103 253000400043 Smt Resistor ROHS Smt Resis...

Page 36: ...1 10W_J_CK D 4 R34 R37 253000400045 Smt Resistor ROHS Smt Resistor R_0805_203_ 1 10W_J_CK D 3 R28 R31 R10 9 253000400047 Smt Resistor ROHS Smt Resistor R_0805_102_ 1 10W_J_CK D 12 R7 R13 R38 R40 R104...

Page 37: ...R7 253006100058 jumper ROHS jumper J_Cu Sn_D0 6_7 5 mm 6 J1 J5 J16 253006100056 jumper ROHS jumper J_Cu Sn_D0 6_10m m 8 J6 J13 253006100083 jumper ROHS jumper J_Cu Sn_D0 6_12 5 mm 3 J14 J17 J18 253006...

Page 38: ...tch RoHS Coding Switch B_EC16P24L 20F12V 2_26 5_CKD 1 B1 263005600003 Tact Switch ROHS Tact Switch KEY_6X6X5_ 180 40gf_CK D feet distance 5 0mm 7 SW1 SW7 263006000227 PCB PCB PCBKEY ZJ R 146 68 5 1 6m...

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