DOWNLOAD LG MC-804AR Service Manual ↓ Size: 1.4 MB | Pages: 39 in PDF or view online for FREE

Model
MC-804AR
Pages
39
Size
1.4 MB
Type
PDF
Document
Service Manual
Brand
Device
Microwave Oven
File
mc-804ar.zip
Date

LG MC-804AR Service Manual ▷ View online

MICROWAVE/GRILL
CONVECTION OVEN
SERVICE MANUAL
MODEL : MC-804AR
CAUTION
BEFORE SERVICING THE UNIT, READ THE
SAFETY PRECAUTIONS IN THIS MANUAL.
This device is to be serviced only by properly qualified service personnel.
Consult the Service Manual for proper service procedures to assure continued safety operation and for precautions to
be taken to avoid possible exposure to excessive microwave energy.
SAFETY PRECAUTIONS
PRECAUTIONS TO BE OBSERVED
BEFORE AND DURING SERVICING TO
AVOID POSSIBLE EXPOSURE TO
EXCESSIVE MICROWAVE ENERGY
A) Do not operate or allow the oven to be operated with the door open.
B) Make the following safety checks on all ovens to be serviced before activating the magnetron or other
microwave source, and make repairs as necessary; (1) Interlock operation, (2) proper door 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 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
the oven is released to the owner.
E) A microwave leakage check should be performed on each oven prior to release to the owner.
CAUTION 
MICROWAVE RADIATION
DO NOT BECOME EXPOSED TO RADIATION FROM THE MICROWAVE
GENERATOR OR OTHER PARTS CONDUCTING MICROWAVE ENERGY.
TABLE OF CONTENTS
(Page)
SAFETY PRECAUTIONS
.................................................................................................
Inside front cover
SPECIFICATIONS
......................................................................................................................................1-1
CAUTIONS
................................................................................................................................................ 2-1
INSTALLATIONS
....................................................................................................................................... 3-1
OPERATING INSTRUCTIONS
.................................................................................................................. 4-1
FEATURES ........................................................................................................................................... 4-1
CONTROL PANEL .................................................................................................................................4-1
OPERATING SEQUENCE .................................................................................................................... 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  ........................................................................................................ 5-8
COMPONENT TEST PROCEDURE ..................................................................................................... 5-9
TROUBLE SHOOTING GUIDE ........................................................................................................... 5-14
EXPLODED VIEW
..................................................................................................................................... 6-1
REPLACEMENT PARTS LIST 
.................................................................................................................. 7-1
SCHEMATIC DIAGRAM OF P.C.B.
........................................................................................................... 8-1
PRINTED CIRCUIT BOARD................................................................................................................. 8-2
PCB PARTS LIST
....................................................................................................................................... 9-1
SPECIFICATIONS
1-1
ITEM
DESCRIPTION
MODEL
MC-804AR
Power Requirement
230V AC50Hz
Single phase, 3 wire grounded
Microwave 1,350W
Grill
1,250W
Convection
1,350W (MAX. 2,550W)
Combination
2,650W
Power Output
850W full microwave power(IEC705)
Microwave Frequency
2,450MHz
Magnetron
2M214 - 39F, 2M254J, 2M218J
Timer
99min. 50sec.
Outside Dimensions
530(W) X 322 X 500mm
Cavity Dimensions
348(W) X 232 X 374mm
Net Weight
23.0kg
Shipping weight
25.5kg
Control Complement
Microwave Power for Variable Cooking
Power level
HIGH...............................................Full power throughout the cooking time(100%)
MED-HIGH .....................................approx. 80% of Full power
MEDIUM .........................................approx. 60% of Full power
DEFROST ......................................approx. 40% of Full power
LOW ...............................................approx. 20% of Full power
• Convection - Max. 250°C
• Grill
• Combination
Name plate Location
Accessories
Owner's manual 
Glass tray
Rotating ring
Convection rack
Grill rack
Metal tray
Rotisserie-Bar                    
Rotisserie-Handle
This microwave oven is designed for household use only.
It is not recommended for commercial purpose.
Back Side
Page of 39
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LG MC-804AR Service Manual ▷ Download

  • DOWNLOAD LG MC-804AR Service Manual ↓ Size: 1.4 MB | Pages: 39 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the LG MC-804AR in PDF for free, which will help you to disassemble, recover, fix and repair LG MC-804AR Microwave Oven. Information contained in LG MC-804AR Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.