Component Teardown
4-7
Control Panel Assembly Removal
1. Disconnect the oven power supply cord and remove
outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect the wire leads from panel components.
5. Remove the one (1) screw holding the control panel
assembly to the oven cavity front plate.
6. Slide control panel assembly upward and remove.
7. Now, individual components can be removed.
Key Sheet Replacement
1. Disconnect the oven power supply cord and remove
outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Remove the control panel assembly, referring to
Control Panel Assembly Removal.
5. Remove the five (5) screws holding the control unit to
the control panel frame. And remove the control unit
by releasing from tabs.
6. Remove the key sheet from the control panel frame.
(Heat gun will soften adhesive)
To discharge the high voltage capacitor, wait for 60
seconds and then short-circuit the connection of
the high-voltage capacitor (that is the connecting
lead of the high-voltage rectifier) against the
chassis with the use of an insulated screwdriver.
1. Before attaching a new key unit, wipe off remain-
ing adhesive on the control panel frame surfaces
completely with a soft cloth soaked in alcohol.
2. When attaching key unit to control panel frame,
adjust upper edge and right edge of the key unit
to the correct position of control panel frame.
3. Place the key unit firmly to the control panel
frame by rubbing with soft cloth not to scratch.
To discharge the high voltage capacitor, wait for 60
seconds and then short-circuit the connection of
the high-voltage capacitor (that is the connecting
lead of the high-voltage rectifier) against the
chassis with the use of an insulated screwdriver.
Installation
1. Remove remaining adhesive on the control panel
frame surfaces with a soft cloth soaked in alcohol.
2. Make sure that the VFD (Vacuum Fluorescent
Display) is in good condition.
3. Remove the backing paper from the new graphic
sheet.
4. Adjust the upper edge and left edge of the graphic
sheet to the large depression on the surface of the
control panel frame.
5. Attach the graphic sheet to the control panel frame
by rubbing with a soft cloth not to scratch.
6. Reinstall the control panel frame to the oven.
Do not touch contact surface of ribbon cable (edge).
(Rear side)
Control Unit
Key
Unit
Ribbon
Cable
Control Panel Frame
Control Panel Frame
Figure 4-5. Control Panel Assembly
Summary of Contents for EI27MO45GSA
Page 2: ......
Page 32: ...Troubleshooting and Testing 3 14 Notes ...
Page 46: ...Wiring Diagrams 5 4 Notes ...
Page 52: ...Parts List 6 6 Notes ...