14 — Keyboard
14–6
CX20/CX30/CX34 Service Manual
14.3.4
Fitting a keyboard (CX34)
To fit a keyboard to CX34, proceed as follows:
1
Clean case surface.
2
Remove backing paper from rear of new keyboard to reveal
self–adhesive material (do not press keyboard pads until keyboard is
fitted to case of unit: to do so will distort permanently keyboard
laminates).
3
Check that keyboard is correct way up (ribbon cable to bottom) and
position in case aperture, with ribbon cable and earth strap located
through slot in case aperture. Lightly press keyboard to make good
contact with unit case.
4
Fit rubber strips, top and bottom of keyboard.
Figure 14.2
Keyboard Earthing Arrangement
Screw
Keyboard earth strap
(with metal strip insert)
Washer
Keyboard earth braid
Pillar (behind keyboard, inside
(display housing top)
Bare surface of metal
strip inside earth strap
Shakeproof
washer
5
Connect earth strap to inside case with the screw, two washers and
earth braid. See Figure 14.2 for configuration.
6
Fit connector to end of keyboard’s acetate ribbon cable.
7
Re–assemble unit (refer to Section 3).
Содержание CX20 SERIES
Страница 133: ...11 Main PCB 11 4 CX20 CX30 CX34 Service Manual Figure 11 1 Main PCB Electrical Connections See Tables 11 1 and 11 2 ...
Страница 137: ...11 Main PCB 11 8 CX20 CX30 CX34 Service Manual Figure 11 2 Main PCB DIL Switches and Potentiometers ...
Страница 246: ...25 Appendices 25 9 CX20 CX30 CX34 Service Manual 1 Voids printed on receipt 2 Voids not printed on receipt ...
Страница 258: ...PL 1 CX20 CX30 CX34 Service Manual Section PL Parts List ...
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Страница 317: ...Addendum A Phase 1 4 and CX34 Parts List A 30 CX20 CX30 CX34 Addendum A ...
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Страница 323: ...Contents B 2 Addendum B ...
Страница 343: ...Addendum B Phase 1 5 1 5 3 and New Main PCB B 22 Addendum B ...
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Страница 351: ...PL Parts List Devlin Keyboard C 6 Addendum C ...
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