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Section B
MAINTENANCE INFORMATION
1.
INTRODUCTION
The following sections detail the functionality of each of the main components within the Triple
7’s cabinet. The instructions within these sections will allow a competent engin
eer to perform
essential maintenance and will also aid in fault finding should a machine malfunction occur.
2.
MPU 6 SYSTEM
The MPU 6 system is a modular system comprising a number of key modules that in
combination provide a flexible, reliable I/O for the
Triple 7’s cabinet.
The key modules are as follows:
1. MPU6 board
2. LED driver board
3. Switch mode power supply
The key modules are interconnected by a proprietary Barbus power/data link, which provides
D.C. power supply routing and integrates the modules into a working system. Each end of the
Barbus data link is terminated at the PSU interface board.
MPU6 Board
The MPU 6 board offers numerous enhancements from its reliable & robust MPU5 ancestor,
these include an integrated on board 16 character LCD display with backlight and menu
buttons, increased processor power, additional memory and USB connectors.
The MPU6 board is a single board controller comprising of a microprocessor, memory, Barbus
power/data link, 2 x USB ports, SP/DIF input, Dataport, Stakes & prizes & percentage key
sockets and a main 64 way connector connector for driving numerous peripheral devices and
for receiving inputs from switches and pushbuttons etc. To interface to the outside world these
connectors are mounted around the periphery of the unit, ensuring good mechanical support
when plugging or unplugging thus minimising flexing of the PCB. The MPU6 board and its
enclosure are fixed to the cabinet via two M4 screws.
USB A PORT
STAKES &
PRIZES PORT
% KEY
PORT
DATAPORT
CONNECTOR
USB B PORT
S/P DIF
Input
64 WAY
INPUT/OUTPUT
CONNECTOR
ON BOARD
MENU
BUTTONS
POWER
STATUS
INDICATORS
BARBUS
INTERFACE
16 CHARACTER
LCD DISPLAY
PANEL.
