Basic HTML Version
LAMP MATRIX
YELLOW (B+)----~CQ0~~~
••~I---RED
~
1
2
3
4
5
6
7
8
Yellow-
Yellow-
Yellow-
Yellow-
Yellow-
Yellow-
Yellow-
Yellow-
Brown
Red
Orange
Black
Green
Blue
Violet
Gray
J137-1
J137-2
J137-3
J137-4
J137-5
J137-6
J137-7
J137-9
096
097
096
095
094
093
092
091
W
Red-Brown
YELLOW BLUE
AMBER GREEN RED
CARD
CASHIER PINBOT
J134-1
ARROW ARROW ARROW ARROW ARROW
,
MINI-PLF"D POKER
090
(LEFT)
1
'1
21
31
41
51
61
71
81
Red-Black
YELLOW BLUE
AMBER GREEN RED
CARD
J134-2
MEGA
SLOT
069
1
,
,
1
1
2
RAMP
MACHINE
(HIGH)
(HIGH)
(HIGH)
(HIGH)
(HIGH)
MINI-PLF"D
2
12
22
32
42
52
62
72
82
Red-Orange
YELLOW BLUE
AMBER GREEN RED
CARD
LIGHT
ROLL
J134-4
2
2
2
2
2
3
EX. BALL THE
088
MINI-PLF"D DICE
3
13
23
33
43
53
63
73
63
Red-Yellow
J134-5
YELLOW BLUE
AMBER GREEN RED
CARD
JACK-BOT KENO
087
3
3
3
3
3
4
MINI-PLF"D
4
14
24
34
44
54
64
74
84
Red-Green
J134-5
YELLOW BLUE
AM8ER GREEN RED
CARD
GAME
CASHIER
087
4
4
4
4
4
5
SAUCER (UNDER
5
15
25
35
45
55
(RIGHT)55
75 RAMP) 85
Red-Blue
YELLOW BLUE
AMBER GREEN RED
CASINO MEGA
JACK-BOT
J134-7
5
5
5
5
5
RUN
RAMP
(RAMP)
066
(LOW)
(LOW)
(LOW)
(LOW)
(LOW)
6
15
26
36
45
56
66
75
86
Red-Violet
LEFT
BONUS
SHOOT
BONUS RIGHT
HIGH
BUY-IN
J134-8
OUTLANE 2X
AGAIN
5X
F"L1PPER HIT ME DROP
BUTTON
084
LANE
TARGET
7
17
27
37
47
57
57
77
87
Red-Gray
LEFT
BONUS
BONUS JACK-BOT RIGHT
LOW CENTER START
J134-9
FLIPPER 3X
4X
(TARGET)
OUTLANE DROP
DROP
BUTTON
063
LANE
TARGET TARGET
8
16
28
38
48
58
68
78
88
J 1XX
=
POWER DRIVER BOARD
LAMP MATRIX CIRCUIT
COLUMN A 8
H L
OFF
L H ON
PLAYFIELD
I
I
I
I
I
I
I
I
I
L
~
ROW
NORMAL H
OPERATION H
3-4
The microprocessor sends a signal to the column circuit causing the output of the UNL-2803 to toggle.
When point "A" drops low, the TIP107 transistor conducts and point "S" changes to a high state. At the
same time, the microprocessor drives the input of the 74LS74 low, causing a high at output "P. A high
state at the base of the TIP102 causes the transistor to conducts, bringing the row circuit to ground and
turning the lamp on.
The microprocessor changes the input of the 74LS74 to a high state to turn the lamp off.
In overcurrent conditions, the lamp is shut off through the comparator. If the voltage at the negative input
of the LM339 rises above 1.4V, the output changes to a low, which is fed back to the 74LS74 and shuts
the row circuit off.