3 — Disassembly and Assembly
3–10
CX20/CX30/CX34 Service Manual
3.3.5
Replacing the LCD (CX20 W)
Refer to Figure 3.1.
To change the LCD, proceed as follows:
1
Remove case (refer to Section 3.3.1).
2
Detach LCD from clips in LCD cradle (pull out).
3
Disconnect LCD from wiring harness.
4
If necessary, remove LCD cradle from unit (pull out).
5
Reassemble in reverse order and fit case (refer to Section 3.3.2).
3.3.6
Removing external connector plate (CX20 W)
Refer to Figure 3.3.
To remove and disassemble external connector plate, proceed as follows:
1
Disconnect mains supply.
2
Remove case (refer to Section 3.3.1).
3
Access is improved if main PCB is detached and if shroud of power
supply unit is removed. It is not necessary to perform this work but, if
desired, refer to Sections 11 (main PCB) and 16 (power supply unit).
4
It is possible to remove all components of external connector plate
without removing connector plate. If removal of plate is desired refer to
Section 3.2.6. Refer to this section also for removal of fuseholder,
mains connector/filter, mains On/Off switch and the 9–way electrical
connectors.
5
To remove the 5–pin DIN connector at end of plate: disconnect the
cable (four leads) from terminal block TB2 on the RS232 PCB and the
earth lead from the primary earth in base (refer to Figure 2.7); unscrew
connector’s locking ring and remove the connector and cable assembly
by pulling out from the underside of machine.
6
Items are fitted in reverse order (see above).
7
If applicable, fit shroud covering power supply PCB (refer to
Section 16).
8
If applicable, fit main PCB (refer to Section 11).
9
Fit case (refer to Section 3.3.2).
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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