Table of Contents
Advertisement
Machine
not
6.4
This can be caused by faults in the electronics or problems,
with the Dartboard Assembly and the technique is to ascertain
which of these two are giving trouble.
Set up 4 players in a new game and score a single 13 for each.
(Take care not to hold down the 13 segment too long so that it
could be recorded twice over).-
288 for each.
If one of the segments of a display are missing, for instance
off power and exchange that players PSD card with
the test.
If the fault 'follows'
needs
replacement.
the
display
in section
After
Motherboard
TAlOOO into the PLlO
With a player up on the machine,
a score of 63 points.
score that player started with for example if -he started at 301
the new score would be 238).
A correct indication that 63 points have been scored confirms
that the electronics is good and it is the dartboard which has the
fault.
In either case remove the simulator and reconnect the
board.
Dartboard
Each segment on the dartboard has a score value which is encoded
into a binary code for the electronics to recognize.
sists of the numbers 1,2,4,8,16
into a unique combination of these numbers.
therefore activate the 4 line and the 16 line and a sc0r.e of 5 will
activate the 1 line and the 4 line.
If by a deliberate action the single 5 and single 20 were to
be
pressed
(The 4 line although appearing in both can only be activated once.)
The
electronics
of them -which is in this case would be 21.
With
process of deducing the location and type of fault on the dartboard
can be undertaken.
Three types of fault are predictable on the dartboard assembly:
-an oversensitive switch or even a switch that is always closed,
-an
undersensitive
-a bad diode on the 'wrap around' diode matrix.
Assuming that only one fault is present the procedure is one of
elimination.
scoring
properly
If
the
needs
replacing.
6.11
displays, disconnect
checking
the
by
removing
position
(This will be 63 points deducted from whatever
mis-scoring
simultaneously,
will
recognize
this
prior
explanation
switch
Check the displayed score reads
the PSD card then the card is faulty and
fault
stays
in
The
replacement
from
the
Motherboard.
on
the
Motherboard.
operation of TAlOOO
and 32 and each score is broken down
the numbers 16,4
these
numbers
of
the
encoding
including
one
that
and repeat'
the
same
position
is outlined
the
Dartboard
from
Plug Test Assembly
should give
The code con-
A score of 20 will
and 1 would be activated.
and
register
the
technique
the
never
makes
contact,
then
the
sum
Advertisement
Table of Contents
