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R-7H55
2. Deviation of door alignment from horizontal line of cavity
face plate is to be less than 1.0mm.
3. Door is positioned with its face pressed toward cavity
face plate.
4. Re-install outer case and check for microwave leakage
around door with an approved microwave survey meter.
(Refer to Microwave Measurement Procedure.)
Note:
The door on a microwave oven is designed to act as
an electronic seal preventing the leakage of
microwave energy from oven cavity during cook
cycle. This function does not require that door be air-
tight, moisture (condensation)-tight or light-tight.
Therefore, occasional appearance of moisture, light
or sensing of gentle warm air movement around
oven door is not abnormal and do not of themselves,
indicate a leakage of microwave energy from oven
cavity.
UPPER DOOR
HINGE PIN
SCREWS
UPPER
OVEN HINGE
SCREWS
LOWER DOOR HINGE PIN
LOWER
OVEN HINGE
Figure C-4. Door Replacement and adjustment
DOOR DISASSEMBLY
Remove door assembly, refer to "Door Replacement".
Replacement of door components are as follows:
1. Place door assembly on a soft cloth with latches facing
up.
Note: As the engaging part of choke cover and door panel
are provided at 22 places, do not force any particular
part.
2. Insert an putty knife (thickness of about 0.5mm) into the
gap between the choke cover and corner portion of door
panel as shown Figure C-5 to free engaging parts.
3. Lift up choke cover.
4. Now choke cover is free from door panel.
5. Remove six (6) screws holding the door frame to the
gutter for choke cover.
6. Remove the door frame with pulling the upper door
hinge pin.
Figure A-1
CUT
H.V. READ WIRES
H.V. RECTIFIER
ASYMMETRIC RECTIFIER
PROCEDURE FOR SERVICE OF DEFECTIVE HV. RECTIFIER ASSEMBLY
1. When a part of the HV. Rectifier was defect, please replace the whole HV.
Rectifier assembly.
2. When a part of the Asymmetric Rectifier was defect, please remove part of
it by cut lead wires as shown Fig. A-1.
2-1. After remove it, please check operation of the unit. If no power,
please replace main fuse.
2-2. Put water load in the oven and operate the unit. If no heat, please
replace the magnetron.
∆
Please keep more than 15.5mm of clearance distance from left of
leads to other parts.
Blown fuse due to defective asymmetric rectifier
There are many cases that the fuse is blown due to defective asymmetric rectifier. So, please follows below.
SERVICE INFORMATION
1. When use the current HV. Rectifier assembly with the Asymmetric Rectifier for service, please remove a part of the
Asymmetric Rectifier by cut lead as shown in Figure A-1.
2. When the HV. Rectifier assembly with the Asymmetric Rectifier in the microwave oven was defect, please take steps
indicated in below
Figure C-5. Door Disassembly
DOOR
PANEL
CHOKE
COVER
Summary of Contents for R-7H55
Page 2: ...R 7H55 ...
