Necta Colibri - Printed Board Functions and Indicator Lights; Control Board

© by NECTA VENDING SOLUTIONS SpA
22
01-2003 197 00
PRINTED BOARD FUNCTIONS
AND INDICATOR LIGHTS
CONTROL BOARD
This board, placed at the back of the machine, (see Fig.
16) 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 second-
ary winding. The voltage supply is rectified and stabilised
directly by the board.
The board also houses the EPROM (see Fig. 16).
- the yellow LED indicates the presence of 12 V DC;
- the green LED blinking indicates that the microprocessor
is working correctly;
- the red LED indicates the operating status of the boiler
heating element.
Fig.16
1 - 230 V~ power users
2 - RAM
3 - EPROM
4 - Input signal
5 - Green LED
6 - Not used
7 - To the push-button board
8 - Expansion board for payment systems (optional)
9 - Green LED
10 - Board power supply
11 - Red LED
12 - TRIAC for the boiler heating element
13 - To boiler heating element
14 - 230 V~ power users
15 - Relays
16 - Control board
17 - Transformer fuse
18 - Network fuses
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