Silca Quattrocode, Руководство по эксплуатации

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Operating manual - English QUATTROCODE
40 Copyright Silca 1999
9.5 Replacing the UNIPOW 50 Supply circuit board
When the UNIPOW 50 supply board is working
properly the two 5V dc and 12V dc green leds
are illuminated and the leds on the display
rotate; the P.F. red led must be off (fig. 31).
Any other signals indicate a fault; in such cases
contact the Silca After-Sales Service.
If it is necessary to replace the board, proceed
as follows:
Fig. 31
1) switch off the machine and disconnect the
supply wire.
2) remove the three screws (O1) (fig. 32 - rear
view)
3) detach the cover (O), pushing in the
direction of the arrows (fig. 33)
WARNING: do not bend the cover during this operation
as the attachment hooks could easily be
broken.
Fig. 32
4) disconnect the plug
1
(fig. 34) and
loosen the four screws (W)
securing the module (it is not
necessary to remove them).
5) slide the module from the rack and
replace with a new one.
6) secure with the four screws (W)
and replace the plug
1
.
Fig. 33
WARNING: replacing this module, which contains
the buffer battery for data in the RAM
memory, causes loss of the operating
program.
Fig. 34
display
A
O
O1
O
1
SUPPLY
CIRCUIT BOARD
W