Motus M990T, Service Manual

Page: 40 / 105

39
3.1 How to Replace the LCD Screen
Do the steps below while referring to the following Exploded Views in Appendix and Section
4
ELECTRONIC PCB, CONNECTOR AND CABLE OVERVIEW.
D.1 OVERLAY BEZEL ASSEMBLY
E.1 CONSOLE ASSEMBLY
1) Turn off the unit power at the switch and then unplug the line cord at wall outlet.
2) Remove eleven screws (B23) from the Console Bottom (C2).
3) Lift off the Console Bottom from the Console Case (C1) while disconnecting the Download
Cable (C41) from the MPU PCB (L9).
4) From the underside of the Console Case (C1), remove three screws (B26) securing the
Overlay Bezel Assembly to the Console Case.
5) Remove green Earth Cables connected between MPU PCB (L9) and Handle Frame (C3) by
removing two screws (B21) from Handle Frame.
6) Disconnect all of electrical connectors from MPU PCB (L9) and the Co-axial Cable(TU1),
Stereo Cable (CN12), RCA Cable(CN5, 8, 9), S-VIDEO Cable(CN2) and DC12V Cable(CN3)
from the A/D Board (L13).
<The Connectors of A/D Board>
7) Lift out the Overlay Bezel Assembly from the front of Console Case and then put it down on
the flat and clean surface so that LCD Screen faces downward.
8) Remove six screws (B33) securing the LCD Metal Bracket (L12) to the LCD Overlay Bezel
and then remove the LCD Metal Bracket (L12) from the Overlay Bezel.
9) Disconnect LVDS Cable (CB16) from the LCD screen (L11).
10) Disconnect the Lamp Cable from the Lamp Inverter (L14).