Avery Berkel CX20 SERIES, Service Manual

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3 — Disassembly and Assembly
3–4 CX20/CX30/CX34 Service Manual
3.2.2 Fitting the case
To fit case of the CX20/CX30 and close up the unit, proceed as follows:
1 Connect case earth strap by attaching its spade connection at chassis
secondary earth.
2 Connect flying connector for keyboard.
3 Carefully rotate case about the front edge, so that rear edge is lifted
over machine and to rear. Check to ensure that wires are not trapped
by this action.
4 Position blank plate at left side of machine and settle case into position.
5 Fit case by locating front edge to location tongues on lower housing,
and then pressing rear edge down to secure (snap–fit).
6 Close printer door. (Refit, if removed, by aligning hinges with underside
of the two clips and pushing up until hinges click into position.)
7 Secure case by fitting two Posidrive screws in the underside of the
machine.
8 Secure case by fitting the Posidrive screw in the base of the ticket
aperture.
9 Fit ticket mouth over ticket aperture and clip in to position.
10 Fit tamper–proof screws to secure cover at top.
11 Fit weighplate (press fit).
3.2.3 Replacing the keyswitch
To change the keyswitch, at the front of the unit, proceed as follows:
1 Remove case (refer to Section 3.2.1).
2 Disconnect electrical connector from rear of keyswitch.
3 Remove keyswitch by removing two Posidrive screws.
4 Fit new item in reverse order and fit case (refer to Section 3.2.2).
3.2.4 Replacing the DCU/remote keyboard connector
To change the DCU/remote keyboard connector, at the front of the unit adjacent
to the keyswitch, proceed as follows:
1 Remove case (refer to Section 3.2.1).
2 Remove main PCB (refer to Section 11.2.1).
3 Disconnect the keyswitch/DCU/LCD loom from the keyswitch. CX20
only: disconnect loom from the LCD; if necessary, detach LCD from
cradle (pull out). CX30 only: detach LCD connector end of
keyswitch/DCU/LCD loom from base.
4 Detach DCU/remote keyboard connector from the keyswitch/DCU plate
by removing the two screws from the front of the machine.