Necta Brio Espresso, Installation, Use And Maintenance Manual

Page: 26 / 40

© by NECTA VENDING SOLUTIONS SpA
22
0101 Brio C-I
Fig. 20
1 - Control board
2 - LED
3 - Relay
Fig. 19
1 - Brightness adjustment trimmer
2 - Printer
3 - Programmer connector
4 - To the control board
5 - Payment system minidip
(1-2 OFF = Executive - ON = MDB)
6 - Jp2 =
7 - To the control board
8 - Executive serial interface
9 - Front validator
10 - Jp1 =
11 - Coin return lamp
12 - not used
13 - MDB coin mechanism power supply
14 - MDB coin mechanism
15 - Programming button
PRINTED BOARD FUNCTIONS
AND INDICATOR LIGHTS
CONTROL BOARD
This board (see Fig. 19) processes the information from
the push-buttons and from the payment system, it also
controls the actuations and the push-button board.
The 15 V AC voltage required for board operation is
supplied by a transformer which is protected by a 125 mAT
fuse on the primary and by a 1.25 AT fuse on the secondary
winding. The voltage supply is rectified and stabilised
directly by the board.
The board also houses the EPROM.
- the yellow LED indicates the presence of 12 V DC;
- the green LED, when blinking indicates that the micro-
processor is working correctly;
- the red LED indicates the operating status of the boiler
heating element.
PUSH-BUTTON BOARD
This board controls the alphameric display, the selection
buttons and the programming button.
It supports the coin mechanism connectors (MDB or
Executive as alternative) as well as the printer port.
CONFIGURING THE
CONTROL BOARD
The electronic board was designed to be used on different
machine models.
In case of replacement it must be checked that the new
board is correctly configured.
A set of 8 minidips (3), allowing configuration of the board
for use in the various versions and in the different coun-
tries, and a jumper (5), allowing configuration of the board
for Instant or Espresso models, are located at the centre of
the board (see Fig. 22). The board is also designed to
support 512 Kb and 1 Mb EPROMs by setting jumpers JS3
and JS4.
To correctly configure a board in case of replacement or to
change the machine performance, refer to the following
tables and to the selection dose table.