R-2498G (serv.man2). Part 1 Text(1-25) - Sharp Home Appliance Service Manual (repair manual). Page 5

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When this commercial  microwave oven is installed near other commercial electrical appliances, connect a lead wire
to each equivalent potential terminal with equipotential marking between them (insert a lead wire between a washer and
an earth angle, and screw them), as shown in Fig. A-1, to make sure that they are at equivalent potential.
If any lead wire is not connected between them, when person touch them he/she will get a electric shock.

COMMERCIAL MICROWAVE OVEN

OTHER COMMERCIAL 
ELECTRICAL APPLIANCE

Lead wire

Equipotential marking

Earth angle
(Equivalent potential terminal)

Equivalent 
potential terminal

Screw

Washer

Lead wire

1. Control panel

2. Hole for safety door latches

3. Ceramic floor

4. Splash cover

5. Oven light

6. Air intake filter

7. Air intake openings

8. Oven cavity

9. Door seals and sealing surfaces

10. Door hinges

11. Oven door with see-through window

12. Door safety latches

13. Door handle.

14. Outer cabinet

15. Removable cover over oven light bulb

16. Air vent openings

17.  Power supply cord

18 Mounting plate

19 Screw for mounting plate

1

2

3

4

5

7

6

8

9

10

11

12

13

15

16

14

18

19

17

DISPLAY AND INDICATORS
Check indicators after the oven starts to
confirm the oven is operating as desired.

1.

Cook indicator

This indicator shows cooking in progress.

2.

Time display

3.

Microwave power level display

4.

HIGH

100%

5.

MEDIUM

50%

6.

MED LOW 20%

7.

DEFROST 10%

8.

TIMER CONTROL

Rotate the control to enter cooking time.

9.

START button

MICROWAVE POWER
LEVEL buttons

2
1

3

4

5

6

7

8

9

START

HIGH

MEDIUM

MED LOW

DEFROST

TIME CONTROL