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R-734 - 29

PARTS

SYMBOL

VALUE / DATA

Special fuse

F1

20A / 250V

Fuse

F2

F 8A / 250V

Thermal cut-out (MAG.)

TC1

125

°

C Off

Thermal cut-out (OVEN)

TC2

145

°

C Off / 115˚C On

Grill heating element

GH

Approx. 56 

Ω

 / Insulation resistance > 10 M

Ω

Oven lamp

OL

240–250 V   25W

High voltage capacitor

C

1.07

µ

F AC 2100V

Filament < 1

Ω

Magnetron

MG

Filament – chassis 

∞

 ohm.

Filament winding   < 1

Ω

High voltage transformer

T

Secondary winding Approx. 130

Ω

Primary winding Approx. 2 

Ω

6. Release two (2) pins of door panel from two (2) holes

upper and lower oven hinges by lifting up.

7. Now, door sub assembly is free from oven cavity.
8. Remove the six (6) screws holding the door panel to the

door frame.

9. Now, door panel is free.
10.Slide latch head upward and remove it from door

frame, releasing latch spring from door frame and
latch head.

11.Now, latch head and latch spring are free.
12.Remove the one (1) screw holding the glass stopper to

the door frame.

13.Remove the glass stopper from the door frame.
14.Slide the front door glass upwards and then right-

wards.

15.Remove the door glass from the door frame.
16.Remove the handle covers A and B from the door

frame.

17.Now, the door frame is free

RE-INSTALL
1. Re-install the front door glass to the door frame as

follows.
1) Insert the upper edge of the front door glass into the

door frame.

2) Slide the front door glass downwards into the door

frame and then leftwards.

3) Re-install the glass stopper to the door frame with

one (1) screw.

2. Re-install the handle covers A and B to the door frame.
3. Re-install the latch spring to the latch head. Re-install

the latch spring to the door frame. Re-install latch head
to door frame.

4. Fit the door panel to the door frame with six (6) screws.
5. Insert two (2) pins of door panel on two (2) holes of

upper and lower oven hinges.

6. Re-install choke cover to door panel.

PIN

PIN

LOWER
OVEN HINGE

UPPER
OVEN HINGE

LOWER
OVEN HINGE

CHOKE COVER

DOOR
PANEL

DOOR SUB 
ASSEMBLY

SLIT CHOKE

R-734 - 30

After adjustment of door latch switches, monitor switch
and door are completed individually or collectively, the
following leakage test must be performed with a survey
instrument and it must be confirmed that the result meets
the requirements of the performance standard for micro-
wave oven.

The safety switch must prevent microwave radiation emis-
sion in excess of 5mW/cm

2

 at any point 5cm or more from

external surface of the oven.

Before beginning the actual test for leakage, proceed as
follows;
1. Make sure that the test instrument is operating nor-

mally as specified in its instruction booklet.
Important:
Survey instruments that comply with the requirement
for instrumentations as prescribed by the performance
standard for microwave ovens must be used for test-
ing.

Recommended instruments are:
NARDA 8100
NARDA 8200
HOLADAY HI 1500
SIMPSON 380M

2. Place the oven tray into the oven cavity.
3. Place the load of 275 

±

 15ml of water initially at 20

±

  5˚C in the centre of the oven tray. The water

container should be a low form of 600 ml beaker with
inside diameter of approx. 8.5cm and made of an
electrically non-conductive material such as glass
or plastic.
The placing of this standard load in the oven is impor-
tant not only to protect the oven, but also to insure that
any leakage is measured accurately.

4. Close the door and turn the oven ON with the timer set

for several minutes. If the water begins to boil before
the survey is completed, replace it with 275ml of cool
water.

5. Move the probe slowly (not faster that 2.5cm/sec.)

along the gap.

6. The microwave radiation emission should be meas-

ured at any point of 5cm or more from the external
surface of the oven.

R-734 - 30

After adjustment of door latch switches, monitor switch
and door are completed individually or collectively, the
following leakage test must be performed with a survey
instrument and it must be confirmed that the result meets
the requirements of the performance standard for micro-
wave oven.

The safety switch must prevent microwave radiation emis-
sion in excess of 5mW/cm

2

 at any point 5cm or more from

external surface of the oven.

Before beginning the actual test for leakage, proceed as
follows;
1. Make sure that the test instrument is operating nor-

mally as specified in its instruction booklet.
Important:
Survey instruments that comply with the requirement
for instrumentations as prescribed by the performance
standard for microwave ovens must be used for test-
ing.

Recommended instruments are:
NARDA 8100
NARDA 8200
HOLADAY HI 1500
SIMPSON 380M

2. Place the oven tray into the oven cavity.
3. Place the load of 275 

±

 15ml of water initially at 20

±

  5˚C in the centre of the oven tray. The water

container should be a low form of 600 ml beaker with
inside diameter of approx. 8.5cm and made of an
electrically non-conductive material such as glass
or plastic.
The placing of this standard load in the oven is impor-
tant not only to protect the oven, but also to insure that
any leakage is measured accurately.

4. Close the door and turn the oven ON with the timer set

for several minutes. If the water begins to boil before
the survey is completed, replace it with 275ml of cool
water.

5. Move the probe slowly (not faster that 2.5cm/sec.)

along the gap.

6. The microwave radiation emission should be meas-

ured at any point of 5cm or more from the external
surface of the oven.

R-734 - 30

After adjustment of door latch switches, monitor switch
and door are completed individually or collectively, the
following leakage test must be performed with a survey
instrument and it must be confirmed that the result meets
the requirements of the performance standard for micro-
wave oven.

The safety switch must prevent microwave radiation emis-
sion in excess of 5mW/cm

2

 at any point 5cm or more from

external surface of the oven.

Before beginning the actual test for leakage, proceed as
follows;
1. Make sure that the test instrument is operating nor-

mally as specified in its instruction booklet.
Important:
Survey instruments that comply with the requirement
for instrumentations as prescribed by the performance
standard for microwave ovens must be used for test-
ing.

Recommended instruments are:
NARDA 8100
NARDA 8200
HOLADAY HI 1500
SIMPSON 380M

2. Place the oven tray into the oven cavity.
3. Place the load of 275 

±

 15ml of water initially at 20

±

  5˚C in the centre of the oven tray. The water

container should be a low form of 600 ml beaker with
inside diameter of approx. 8.5cm and made of an
electrically non-conductive material such as glass
or plastic.
The placing of this standard load in the oven is impor-
tant not only to protect the oven, but also to insure that
any leakage is measured accurately.

4. Close the door and turn the oven ON with the timer set

for several minutes. If the water begins to boil before
the survey is completed, replace it with 275ml of cool
water.

5. Move the probe slowly (not faster that 2.5cm/sec.)

along the gap.

6. The microwave radiation emission should be meas-

ured at any point of 5cm or more from the external
surface of the oven.