Avery Berkel CX20 SERIES, Service Manual

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3 — Disassembly and Assembly
3–9 CX20/CX30/CX34 Service Manual
3.3.2 Fitting the case (CX20 W)
To fit case of the CX20 W 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 Fit ticket mouth (press fit).
9 Fit tamper–proof screws to secure cover at top.
3.3.3 Replacing the keyswitch (CX20 W)
To change the keyswitch, at the front of the unit, proceed as follows:
1 Remove case (refer to Section 3.3.1).
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 3.3.2).
3.3.4 Replacing the DCU/remote keyboard connector
(CX20 W)
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 3.3.1).
2 Remove main PCB (refer to Section 11.2.1).
3 Disconnect the keyswitch/DCU/LCD/RS232 loom from: the keyswitch;
the LCD display (detach LCD from cradle by easing up from bottom
edge): and the RS232 PCB.
4 Detach DCU/remote keyboard connector from the keyswitch/DCU plate
by removing the two screws from the front of the machine (either side of
the D–type connector).
5 Remove the DCU/remote keyboard connector and loom assembly
noting the routing of the loom.
6 Fit new item in the reverse order, then fit main PCB (refer to Section
11.2.2) and case (refer to Section 3.3.2).