S*TJ MARCH 1982 10
A Regular Monthly Feature Technically Outlining a Newly Released Game
WILLIAMS "HYPERBALL"
Williams has just released this exciting new game
and everyone in the industry is waiting anxiously
to see just how "hot" this machine really is.
To Williams' credit, they didn't rush this unique
game out the door and patch the problems as
they are reported from the field. They've invested
many hours refining and testing this piece before
its release. This attitude will certainly result in
less initial service problems usually encountered
with the release of a dramatically new game
design.
Reviewing the block diagram and signal distri-
bution illustration, you can see Williams did not
design an entirely new electronics system, but
stayed basically with the electronic package
they've been using on their recent pins. Observing
revision levels, strapping changes and correct
program Roms, boards may be exchanged
between "Hyperball" and newer Williams pin
games. This should facilitate general maintenance
and reduce troubleshooting time.
NOTES:
1. Connections are indicated
by circled numbers as
follows:
l CPU Board
2 Control Board
3 Power Supply Board
4 Master Display Board
5 Slave Display Board
6 Backbox
7 Cabinet
8 Playfield
9 Insert Board
10 Sound Board
11 Not Assigned
12 Not Assigned
13 Speaker Panel
14 Alphanumeric Display
15 Power Switching Board
2. Refer to Power Wiring
Diagram for connections to
3Pl.
CIRCUIT BOARD INFORMATION
CPU Board
1. Revision level 7 CPU Boards (batteries located on
lower left comer at board) or later boards must be
used.
2. Must be equipped with three white-labeled Game
Roms.
3. Jumpers W5, Wll, W22, W24, W27, and W28
must be connected. Jumpers W3, W4, W5, W6,
W9, Wl0, Wl2, Wl5, Wl6, Wl8, W21, W23,
and W26 must be removed. With the exception of
W25, (Factory Setting Jumper) all other jumpers
are not changed.
Control Board
Replaces Driver Board; equipped with four 6821
PIAs.
Sound Board
Must be jumpered for blue-labeled sound Rom opera-
tion and be equipped with Sound Rom 8. (Jumpers
W3, W5, W7, W9, Wl0, Wl2,andW15connected;
W2, W4, W6, W8, Wll, and Wl3 removed.)
Power Supply Board
Model D 8345 required (Equipped with relay).
Power Switching Board
Required for ball shooter solenoid DC and isolated
11 SV AC for motors. Some games are equipped with
two transformers and some with three. Secondaries of
the second transformer provide 75VAC for the ball
shooter solenoid and 115VAC for the motors. The © ..... {
75VAC is rectified to supply +80VDC to the ball ' ....,..
shooter solenoid. The Control Board applies a switched
. ,. ,oc {
+ l .4VDC signal to the Switching Board to pulse the © , ms
ball shooter solenoid. The Control Board function,
{
enabling the AC drive, is similar to the flipper relay of © SC:-~~g
flipper games. The function is activated during game
play and diagnostics, and deactivated in Game Over.
In games with two transformers, the switched 115V AC
drives both the ball feed motor and ball shooter fan. In
games with three transformers, only the AC for the
ball feed motor is switched, and the fan is powered by
the third transformer secondary which is on all the
time.
(Continued on next page)
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INPUT
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SOUND
ROMB
0
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POWER
SOlfNOIO
sb
SELECT VOLUME
SOUND BOARD
SUPPLY
LAW,OW(llt
OPTION
SWITCHES
4A
SB