Avery Berkel CX20 SERIES, Руководство по обслуживанию

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3 — Disassembly and Assembly
3–13 CX20/CX30/CX34 Service Manual
10 Remove front housing: lift up front housing (being careful not to strain
the electrical connections) and disconnect looms from the vendor
display PCB and keyboard (intermediate connection). Disconnect the
keyboard earth braid from the power supply unit cover by removing the
screw and shakeproof washer: the earth lead connected to
keyboard/main PCB loom is also freed.
11 Detach rear display housing from chassis by carefully lifting out chassis
(being careful not to strain electrical connections) and disconnect the
loom from the customer display PCB (inside the rear housing).
Remove any sub–assemblies as required (refer to appropriate sections).
NOTE: It is advisable, when servicing a component fitted to the chassis, that
the chassis be seated in either the front or rear housing, depending
on which side the component is fitted. However, it may be easier to
refit the chassis (after removing housings) to the customer fixing and
service the unit in its hanging position.
3.4.2 Fitting the housings
To fit the front and rear housings of the CX34 and close up the unit, proceed as
follows:
1 Fit any sub–assemblies previously removed and ensure chassis is
resting on its rear or is seated in the rear housing on a clean, flat
surface.
2 Connect free connectors of keyboard looms from front and rear
housings.
3 Connect the keyboard earth braid to the power supply unit cover, along
with the earth cable (connected to main PCB end of the keyboard
ribbon loom) using the screw and shakeproof washer.
4 Lift up chassis, carefully turn it upside down and lower it into the front
housing, being careful not to strain or trap any electrical cables.
5 Secure top of chassis to front housing using the two countersunk
screws (through the two countersunk holes in rim of front housing).
6 Connect display loom to customer display PCB in rear housing.
7 Fit rear display housing in position over front housing and secure using
the three Posidrive screws and then the countersunk socket screw (top
right–hand side) through rim of rear housing. Screw in the two screws
adjacent to the mounting boss in top of the unit through the front and
rear housings.
8 Fit the black plastic moulding in the support bracket aperture (underside
of machine) using the two M4 x 16 mm screws.
9 Fit the printer tear edge to ticket mouth (bottom right–hand side of
machine) using the slotted screw: make sure heads of the three small
screws on printer tear edge are outermost.
10 Fit printer cassette.