Basic HTML Version
TEST/DIAGNOSTIC PROCEDURES
(Continued)
SWITCH TESTS,
1. Switch Levels.
(From Solenoid Test) To initiate the Switch Levels Test, press ADVANCE.
Observe that the
Player 1 and 2 displays show the message, SWITCH LEVELS, and the Player 3 display shows
06 (Switch Levels Test identifier).
Normally, the right portion of the Player 3 display remains
blank, indicating that no switch is actuated.
If, however, a switch
is
actuated (possibly stuck closed), the Player 3 display shows that switch's
number, while the Player 1 and 2 displays indicate the switch's name.
A sound also
accompanies the displays.
(This is another facet of the
TAXI
System-11 B's switch testing
capability.) If more than one switch is closed, a series of displays show each actuated switch's
name and number.
(In addition, either of these problems could result in the reporting of a switch problem (or
problems) at game Turn-On or at the beginning of Diagnostic Tests.}
As soon as the operator opens a closed switch, its name and number are eliminated from the
Switch Levels display series. For
TAXI,
switch numbers can range from 01 through 64. Refer
to the Switch·Matrix
Table for switch numbers and wiring information.
CPU Board
connections at jacks 1J8 (columns) and 1J10 (rows) are also listed in the table.
TAXI Switch-Matrix Table
~
1
Q45
2
049
3
U44
4
Q48
5
043
6
047
7
042
8
046
GRN·BRN GRN·REO GRN·ORN GRN·YEL
GRN·BLK
GRN·BLU GRN·VIO GRN·GRY
W
1J a·1
1 J8·2
1J a·3
1J B·4
, J B·5
1J a·7
, J
e-s
, JB·9
WHT·
Plumb Bob
leftJel
left Ramp Right Ramp
lane Change
1
BRN
Playfield
Bumper 1 7 Entry 25
Right 57
lJl0·9
n
1
n
9
33
4 1
4 9
WHT·
Left Kicker
Right Ramp left Ramp
lane Change
2
RED
Outhole
('sling')
Entry 2 6
Left
i.ne-a
2
1 0
1 8
34
42
50
58
WHT.
Credit
Ball Trough Right Jet
Mdl3-Bank DT
3
CRN
Button
#1
Bumper
(left) 27
Catapult
Top Kicker
1Jl0·7
3
1 1
1 9
35
43
5 1
59
WHT.
Left Coin Ball Trough Right Kicker Mdl 3-Bank Dr
4
YEL
Right Eject
SPINOUT
Chute
#2
('sling')
(mid)
1Jl0·6
4
1 2
20
28
36
44
52
60
WHT·
Center Coin
Lower Jet
Mdl 3-Bank DT Left
5
GRN
Chute
Top Eject
Bumper
(right)
ouuane
'Jl0·5
5
Hole 1 3
2 1
2 9
37
45
53
6
1
WHT·
Right Coin
C
R 3-Bank DT Left Return
6
BLU
Chute
Ball Shooter
lJl0·3
6 Top Lane, 4
22
(top) 30
Lane 38
46
54
62
WHT·
Slam Ti~
A
Top Lane
R 3-Bank DT Right
7
VIC
Top Lane 1 5 Entry
(mid)
Outlane 39
1Jl0·2
7
23
:1 1
47
55
63
WHT·
High Score
B
Tips Carried R 3-Bank DT Right Return
8
GRY
Reset
(bottom)
lJl0·1
8 Top Lane 1 6
24
32
lane 40
48
56
64
Row Problems.
It a display of two (or more) switch numbers of a row occurs, although only
one switch is closed, check for a short circuit between the column wires.
Multiple Switch Number Indications.
Check the associated column wire for a short circuit
to ground.
Column Problems,
If display of two (or more) switch numbers in a column occurs (while only
one switch is actuated), check for a short circuit between the row wires.
Use AUTO-UP to proceed to the next test.
TAXI 31