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NW Global Vending – TECHNICAL MANUAL

This document was produced by MARK AC for the exclusive use of the technical personnel in the after-sales service.

. No part of this document may be divulged to a third party or reproduced partially or entirely without the prior permission of NW GLOBAL VENDING

New dispenser “KORO” 07/10/2005 page 20 / 42

15 - ACTUATION BOARD - CONFIGURATIONS

ACTUATION BOARD

This board, placed at the back of the machine, (see Fig. 29)

processes the information from the push-button card and

from the payment system; it also controls the actuations, the

input signals and the boiler board.

The 15 VAC voltage necessary for operating the board is

supplied by the transformer, protected by a 125 mAT fuse on

the primary winding and by a 1.25 AT fuse on the secondary

winding; the voltage is rectified and stabilised directly by the

board.

This board houses the Flash EPROM. The control software of

the board is installed directly (via RS232) in the

microprocessor.

- The red LED (7) indicates the operating status of the

boiler heating element;

- The red LED (9) for resetting the CPU glows during the

board reset;

- The green LED (11) blinking indicates that the

microprocessor is working correctly;

- The yellow LED (12) indicates the presence of 12 V DC.

Necta Koro Service Manual

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