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The bands are designed to be easily removed and refitted without re-alignment being
necessary. Each band is securely located beneath the rim on each side of the drum. Two
pegs retain the band to secure and ensure correct alignment and prevent any slipping.
The transparent leader at the start of each band is printed with machine identification and
part number.
4.9.11 Reel Assembly fixing
Gamesman assemblies
A reel mounting plate is fitted in the cabinet and provides a firm platform for the reel
assemblies. Front and rear fixing feet are screwed to the mounting plate to ensure the
accurate and secure location of each reel assembly. A tongue on the front of the assembly
base locates in the front fixing foot and the rear of the assembly is snapped in place on the
rear fixing foot.
4.9.12 Reel alarms
The MPU5 is normally programmed to monitor correct operation of the reel assembly and
give a warning alarm if a fault condition is detected. The alarm takes the form of an
alternating audio tone, flashing symbol illumination on the defective reel and an appropriate
alphanumeric caption.
4.9.13 Set-up alarm
On initialisation, the MPU5 processor requires the CPU on the REEL5 control board to spin
the reels at least two revolutions to synchronise the cpu counters and to ensure that each
reel has stopped in a "flag off" position. A "Set-up" alarm is produced if an interrupter flag is
present on one or more reels. If the test is satisfactory the CPU is then required to spin the
reels to position "zero" where the interrupter flags should be seen. If one or more flags are
not seen, perhaps due to a faulty stepper motor, a "Set-up" alarm is produced. Enter the
Self-Test mode to verify the problem Sect 2.3.2.
4.9.14 Spin alarm
The REEL5 control board CPU controls the position of each reel by generating drive pulses
as required. The CPU loads a counter with the pulse count and then monitors the reel drives
to check that the required steps have occurred. A "Spin" alarm is produced if the actual
pulse count differs from the required value. This alarm is also generated during a reel spin if
an interrupter flag is seen other than 48 motor steps from when it was previously detected,
indicating that a reel has been prevented from rotating freely for some reason.
A useful facility is provided, in that with the machine doors sensed open the Self Test routine
can be entered from the alarm mode as normal.