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SERVICE

MICROWAVE OVEN

CONTENTS

SUPER GRILLE
MICROWAVE OVEN

1. Precaution

2. Specifications

3. Operating Instructions

4. Disassembly and Reassembly

5. Alignment and Adjustments

6. Troubleshooting

7. Exploded Views and Parts List

8. PCB Diagrams

9. Schematic Diagrams

Manual

PG113UR (WHITE)

PG113UR (SILVER)

Summary of Contents for PG113UR

Page 1: ...ICROWAVE OVEN 1 Precaution 2 Specifications 3 Operating Instructions 4 Disassembly and Reassembly 5 Alignment and Adjustments 6 Troubleshooting 7 Exploded Views and Parts List 8 PCB Diagrams 9 Schematic Diagrams Manual PG113UR WHITE PG113UR SILVER ...

Page 2: ...s 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 misadjusted components in the interlock monitor door seal and microwave generation and transmission systems s...

Page 3: ...uld remove their watches while repairing an MWO 11 To avoid any possible radiation hazard replace parts in accordance with the wiring diagram Also use only the exact replacements for the following parts Primary and secondary interlock switches interlock monitor switch 12 If the fuse is blown by the Interlock Monitor Switch Replace all of the following at the same time Secondary door sensing switch...

Page 4: ...e oven and discharge the high voltage capacitor See Figure 1 1 2 The high voltage capacitor remains charged about 30 seconds after disconnection Short the negative terminal of the high voltage capacitor to to the oven chassis Use a screwdriver 3 High voltage is maintained within specified limits by close tolerance safety related components and adjustments If the high voltage exceeds the specified ...

Page 5: ...IMENSIONS OVEN DIMENSIONS SHIPPING DIMENSIONS SHIPPING WEIGHT APPROX MICROWAVE 99 MINUTES 90 SECONDS GRILL 60 MINUTES 230V 50Hz AC MICROWAVE 1 450W SUPER GRILL 1 850W FROM 180 TO 900W IEC 705 TEST PROCEDURE 2 450MHz OM75P 31 ESS COOLING FAN MOTOR 529mm W x 350mm H x 496mm D 344mm W x 240mm H x 345mm D 611mm W x 435mm H x 541mm D NET 21 kg GROSS 24 kg ...

Page 6: ... 3 Operating Instructions 3 1 Control Panel 3 2 Features HANDLE DOOR LATCHES GLASS TRAY GUIDE ROLLER COUPLER GRILL HEATER HEATER GRILLE CONTROL PANEL DOOR ...

Page 7: ...ment of Damper Assembly 1 Disconnect wires from the Damper Assembly Lamp Motor and Micro switch 2 Remove screws securing the Damper Assembly to the cavity 3 Remove the Lamp 4 Remove the Damper Motor and cam motor 5 Remove screws securing the micro switch 6 Remove the micro switch 4 3 Replacement of High Voltage Transformer 1 Discharge the high voltage capacitor 2 Disconnect all the leads 3 Remove ...

Page 8: ...nd separate the Ass y Door by slightly sliding it to the left side 2 Separate DOOR C using minus driver 3 Separate DOOR E from DOOR A after separation of 1 piece of screw 4 Separate Key Door and Handle 5 Assemble the device in the reverse order ARM SLIDER L ARM SLIDER R 1 3 2 SCREW ...

Page 9: ...ailure replace the primary interlock switch door sensing switch monitor switch and power relay 3 When the above three switches operate properly check if any other part such as the control circuit board blower motor or high voltage transformer is defective 4 5 Replacement of Drive Motor 1 Take out the glass tray guide roller and coupler from cavity 2 Turn the oven upside down to replace the drive m...

Page 10: ...d 3 Lift up the control circuit board from the Ass y control box 4 When reconnecting the FPC connector make sure that the holes on the connector are properly engaged with the hooks on the Plastic Fastener 4 8 4 Removal of Window Display Membrane Panel 1 Window display should not be disassembled as its mounting tabs will be broken If repair work is difficult replace with Ass y control panel 2 The m...

Page 11: ... Isolate the magnetron from the circuit by disconnecting its leads 3 A continuity check across the magnetron filament terminals should indicate one ohm or less 4 A continuity check between each filament terminal and magnetron case should read open Magnetron Antenna Gasket Plate Cooling Fins PRECAUTION 1 High voltage is present at the high voltage terminals during any cook cycle 2 It is neither nec...

Page 12: ...e figure 2 No specific adjustment during installation of Primary switch and Monitor switch to the latch body is necessary 3 When mounting the Latch Body to the oven assembly adjust the Latch Body by moving it so that the oven door will not have any play in it Check for play in the door by pulling the door assembly Make sure that the latch keys move smoothly after adjustment is completed Completely...

Page 13: ...ure will cause a variance in the temperature rise Additional power test should be made if temperature rise is marginal NOTE 2 Output power in watts is computed by multiplying the temperature rise step 5 by a factor of 91 times the of centigrade temperature 5 9 Microwave Heat Distribution Heat Evenness The microwave heat distribution can be checked indirectly by measuring the water temperature rise...

Page 14: ...at the highest power level 4 Set survey meter dual ranges to 2 450MHz 5 Using the survey meter and spacer cone as described above measure arnear the opening of magnetron the surface of the air guide and the surface of the wave guide as shown in the following photo but avoid the high voltage components The neading should be less than 4mW cm2 5 12 Note on Measurement 1 Do not exceed the limited scal...

Page 15: ...rocedure Replace PCB main Timer starts countdown but no microwave oscillation No heat while oven lamp and fan motor turn on 1 Off alignment of latch switches 2 Open or loose connection of high voltage circuit especially magnetron filament circuit NOTE Large contact resistance will bring lower magnetron filament voltage and cause magnetron to lower output and or intermittent oscillation 3 Defective...

Page 16: ...ain Loud buzzing noise can be heard 1 Loose fan and fan motor 2 Loose screws on H V Transformer 3 Shorted H V Diode Tighten screws of fan motor Tighten screws of H V Transformer Replace H V Diode Turntable motor does not rotate 1 Open or loose wiring of turntable motor 2 Defective turntable motor Replace turntable motor Oven stops operation during cooking 1 Open or loose wiring of primary interloc...

Page 17: ...005 MM16 MM29 MM30 MM31 MM67 MM71 MM65 MB08 MM17 MB07 MM06 MM17 MM08 MM22 MM07 MM59 MM1006 MB02 MM1015 MM42 MM1007 MM18 MM19 MM20 MM156 MM64 MM1008 MM03 MM10 MM27 MM1014 MM28 MM14 MM93 MM61 MM17 MM1012 MM61 MM62 MM63 MM61 MM1001 MB04 MB02 MB02 MB01 MB09 MB05 MB01 MM1011 MM1009 MM1010 MM05 MM55 ...

Page 18: ...2340V 3 3V 1 MM156 DE64 00537A GRILLE TBMO PC T2 5 WHT 1 WHITE MM156 DE64 00537B GRILLE MT1088SB PC T2 5 SILVER 1 SILVER MM16 DE63 00102A COVER CEILING TBMO MICA SHEET T0 3 W110 1 MM17 DE47 20009A THERMOSTAT PW2N 520PB 160 60 250V 7 5A H 1 GUIDE AIR MM17 DE47 00003A THERMOSTAT PW2N 120 110 187 1 GRILL MM17 DE47 20009A THERMOSTAT PW2N 520PB 160 60 250V 7 5A H 1 MGT MM18 DE74 20015G TRAY COOKING T6 ...

Page 19: ... TBMO UP DOWN SILVER 1 SILVER MD01 ASSY DOOR PG113UR WHT TBMO 1 S N A MD02 DE64 00109A DOOR A TBMO PC P WHT TOAST BAK 1 WHITE MD02 DE64 00109B DOOR A MT1088SB PC SILVER TOAST BAKE 1 SILVER MD03 DE64 00539A SCREEN DOOR A TBMO GLASS T2 0 T 1 MD04 DE94 00755A ASSY DOOR E MT1044WB SELANT COATING GLAS 1 MD06 DE64 00195A DOOR C TBMO PBT BLK TOAST BAKE 1 MD07 DE61 00151B SPRING KEY MT1044WB SWP BLUI 1 MD...

Page 20: ...CH18A ZPC2 PH TC M4X8 WT 1 CO BACK IN DE60 10098A SCREW ASSY TAP TITE GLD SWRCH18A ZPC2 PH TC M4X8 WT 1 M DRIV DE60 10098A SCREW ASSY TAP TITE GLD SWRCH18A ZPC2 PH TC M4X8 WT 1 DE60 10098A SCREW ASSY TAP TITE GLD SWRCH18A ZPC2 PH TC M4X8 WT 1 HVD DE60 10098A SCREW ASSY TAP TITE GLD SWRCH18A ZPC2 PH TC M4X8 WT 2 DE60 10098A SCREW ASSY TAP TITE GLD SWRCH18A ZPC2 PH TC M4X8 WT 1 6009 001297 SCREW SPE...

Page 21: ... 8 P C B Diagrams 8 1 P C B Diagrams ...

Page 22: ...STOR PTC 27ohm 20 265V 1 5A 360mA BK 1 PTC1 2007 000033 R CHIP 0OHM 5 1 8W DA TP 3216 12 J01 J11 OJ03 2007 000277 R CHIP 100KOHM 1 1 10W DA TP 2012 1 R13 2007 000300 R CHIP 10KOHM 5 1 10W DA TP 2012 6 R07 R08 R09 R16 R17 R18 2007 000468 R CHIP 1KOHM 5 1 10W DA TP 2012 7 R01 R03 R05 R10 R14 R15 2007 000468 R CHIP 1KOHM 5 1 10W DA TP 2012 7 R24 R31 2007 000671 R CHIP 2KOHM 5 1 10W DA TP 2012 2 R02 R...

Page 23: ... 9 Schematic Diagrams 9 1 Schematic Diagrams ...

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