Williams PIN-BOT - Page 34

TEST/DIAGNOSTIC
PROCEDURES
(Continued)
SWITCH TESTS
(Continued).
Among the
possibilities is
the fact that the
players have not
hit that
switch because
of some
other problem; the
operator should try to
analyze what
could cause the
switch to be
missed,
and remedy
that problem cause.
With
these
new tests,
switch
problems are,
therefore, more
easily
isolated.
Coin
Chute Switches.
During the Switch Edges
test,
the System-11
switch
testing pro-
gram
energizes the coin
lockout relays,
to
prevent testing
actuations of the
coin chute
switches
from affecting
the
data
contained in
the audit
counters, thereby
maintaining accurate
records
of
the game’s earnings.
3. Playfield or
CPU Board? To
determine
whether
a
switch
problem is in the
playfield or
the CPU
Board,
remove connectors 1P8
and 1P10
from the CPU
Board. Begin
the Switch Test.
Use a
jumper wire
to
simulate
switch actuation.
For example,
placing
a
jumper between 1
J10-9
and
1J8-2
should (based
on the
Switch-Matrix Table)
should
produce an indication
of switch 09
being actuated.
ENDING THE
DIAGNOSTIC TESTS.
To
end the Diagnostic
Tests, reach the
Switch Edges Test
(06
in the
Credits display),
use
AUTO-UP
and press ADVANCE.
The backbox
displays should
show the
PIN-BOT game's
Identifi-
cation
Information. Use
MANUAL-DOWN, and
press
ADVANCE
to
reach
Adjustment
Item 70
(INSTALL FACTORY). Use
AUTO-UP and
press ADVANCE to
obtain the Attract
Mode .
AUTO
BURN-IN MODE.
The
Auto Burn-in Mode
permits the
operator
to
check
intermittent (or
nonrecurring)
problems
associated with most
portions of the game's
circuitry.
Repeatedly cycling
through
a
group
of
tests
can sometimes bring a
problem, which
occurs only
randomly or
occasionally,
to
exhibit
itself more
frequently, thereby
aiding in the
isolation of the problem.
To activate the
Auto
Burn-in Mode:
1 . While in
the Game Adjustments,
reach Ad 67 and
change the
Factory Setting of
NO
to
YES,
via
the
Credit button. Set the
AUTO-UP/MANUAL-DOWN switch to
AUTO-UP.
2. Press ADVANCE to
start the Auto
Burn-in Mode. This
mode repeatedly
sequences
through the
Music Test,
the Display Test, the
Sound Test, the
All Lamps portion
of the Lamp Test,
and the
Solenoid
Test.
3.
To halt the Auto
Burn-in Mode
,
switch the game
Off and then
On. PIN-BOT
now starts
in the
Attract Mode. (If
a
switch
problem is now
reported
by
the
displays,
perform the
Switch Tests
again
to
determine the
nature of the problem;
then, perform
necessary
repairs.)
SYSTEM-11
MEMORY CHIP
TEST.
A new fealure is
now included in
the Memory
Chip Test lor
System 1 1 .
During power-up,
the CPU
performs a
self-testing routine.
When all tests
are satisfactory,
the game
proceeds to
the Attract
Mode,
allowing players to use
the game.
Whenever a
portion of the
testing does
not produce
satisfactory
results, the
game displays a
message,
before proceeding to
the
next portion
of the
testing.
ONLY after all tests
are satisfactory does
the game
allow play.
In
addition
to
the displayed
message,
when
a
test
fails, the lower LED
mounted on the
CPU Board
can be
observed
to
determine the probable cause
of the
problem. The
LED blinks,
or flashes, a
certain
number of times to
identify the
probable cause, as
described in
the CPU
LED
Indicator
Codes
Table. The
operator can also
start the
self-testing
routine by
pressing
the CPU
Diagnos-
tic Switch (SW
2)
on
the
edge
of the
CPU Board.
PIN*BOT
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