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© by NECTA VENDING SOLUTIONS SpA 09-2003 228 00
Fig. 18
1 - To the front validator
2 - Not used
3 - To the machine board
4 - Signals: free vend - jug facilities
5 - To the display card
6 - Display contrast adjustment trimmer
7 - Programming button
8 - Wash button
9 - RS232 port
10 - To the programmer
11 - Display card
Fig. 17
1 - 110 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 - 110 V~ power users
15 - Relays
16 - Control board
17 - Transformer fuse
18 - Mains fuses
PUSH-BUTTON BOARD
This board controls the alphanumeric display, the selec-
tion buttons and the programming button (see Fig 18).
It supports the coin mechanism connectors as well as the
printer port.
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