PROPER USE AND SERVICE PRECAUTIONS
CAUTION : 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.
1. For Safe Operation
Damage that allows the microwave energy (that cooks or heats the food) to escape will result in poor cooking and
may cause serious bodily injury to the operator.
IF ANY OF THE FOLLOWING CONDITIONS EXIST, OPERATOR MUST NOT USE THE APPLIANCE.
(Only a trained service personnel should make repairs.)
1) A broken door hinge.
2) A broken door viewing screen.
3) A broken front panel, oven cavity.
4) A loosened door lock.
5) A broken door lock.
The door gasket plate and oven cavity surface should be kept clean.
No grease, soil or spatter should be allowed to build up on these surfaces or inside the oven.
DO NOT ATTEMPT TO OPERATE THIS APPLIANCE WITH THE DOOR OPEN. The microwave oven has
concealed switches to make sure the power is turned off when the door is opened. Do not attempt to defeat them.
DO NOT ATTEMPT TO SERVICE THIS APPLIANCE UNTIL YOU HAVE READ THIS SERVICE MANUAL.
2. Correct Installation
1) This microwave oven weighs 18 kg(40lbs.) and must be placed on a horizontal base strong enough to support
this weight.
2) The oven should be placed as far from high temperature source and vapour as possible.
3) The power supply cord is about 1.6m (5.25ft) long. Earthing is required when connecting the power source.
4) Power consumption of this oven is approximately 2.8 kw. It is suggested that the unit is operated on such power
line(about 12 amperes) that can provide more power than this rating.
5) Object must not be placed on the top enclosure so as not to obstruct air flow for ventilation.
2
3
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 to verify compliance with the Federal performance standard should be
performed on each oven prior to release to the owner.
TABLE OF CONTENTS
PROPER USE AND SERVICE PRECAUTIONS
3
SPECIFICATIONS
5
NAMES AND FUNCTION OF PARTS
6
CONTROL PANEL
7
HOW TO SET THE OVEN CONTROLS
9
PROGRAMMING COMBINATIONS
17
INTERLOCK MECHANISM FUNCTIONS AND ADJUSTMENTS
18
PRECAUTIONS FOR DISASSEMBLY AND REPAIR
20
DISASSEMBLY AND ASSEMBLY
21
TROUBLE SHOOTING GUIDE
28
MEASUREMENT
34
COMPONENT TEST PROCEDURE
36
WIRING DIAGRAM
37
SCHEMATIC DIAGRAM
38
WIRING DIAGRAM(GERMANY)
40
SCHEMATIC DIAGRAM(GERMANY)
41
EXPLODED VIEWS AND PARTS LIST
43
PRINTED WIRING BOARD
46
P.C.B. CIRCUIT DIAGRAM
53
P.C.B. LOCATION NO
54
CAUTION
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 CONNECTED. ALL INPUT AND OUTPUT MICROWAVE CONNECTIONS, WAVEGUIDE,
FLANGES AND GASKETS MUST BE SECURE. NEVER OPERATE THE DEVICE WITHOUT A
MICROWAVE ENERGY ABSORBING LOAD ATTACHED. NEVER LOOK INTO AN OPEN WAVEGUIDE
OR ANTENNA WHILE THE DEVICE IS ENERGIZED
