Star Tech Journal

15
STAR*TECH JOURNAL/SEPTEMBER 1983
New System Preview continued.
PIN OUTS & CONTROLS
External
Controls
'o
==i
P1O2-7
Vee
Tint
,0 , R13O
c~- --
P1O2
101R139
0
Brilliance
Color
w,....._...,_
R1O7
White Level
Control
P1O2-5-
R1O2
Detail
1OK
P1O2-2 -
R1O3
Tint
1OK
P1O6
Contrast
P1O3
0
P1O1
0
P1O2-4
External Controls
(Customer Supplied)
NTSC Input
Composite Video
To
RGB
Monitor
Pin Outs
PlOl-1 75-ohm input
PlOl-2 Ground
~102-1
Pl02-2
P102-3
Pl02-4
Pl02-5
Pl02-6
Pl02-7
Vs Supply (16v)
External Tint Wiper
External Color Wiper
Ground to Control
External Detail Wiper
Not Used
Vee to Control (12v)
P103-l Ground
P103-2 l:lorizontal Sync.
Pl03-3 Vertical Blanking/Sync.
P103-4 Red Output
P103-5 Green Output
P103-6 Blue Output
Notes:
1. Vs ( 16 volt) may be obtained on Elect.J:!-)home GO? Monitor by adding a wire
from Pin 102-1 on NTSC Board to the cathode ofD504 on the GO? chassis.
2. External controls provision is made for customer supplied color, detail and
tint controls at plug Pl02 (use lOKfl pots).
The Disc Player
The disc player used in Dragon's Lair is made by Pioneer and is known as
Model PR7820 and is a commercial grade player. On most disc players, you
simply push the play button and the laser disc is read the same way a record
player reads a record. The pick-up starts on the inside edge of the disc and works
its way outward. But on a player that is used in a laser disc game, it must be able
to move, for example, from frame #2600 to frame #2605 accurately if the
correct move has been made. If an incorrect move has been made, the unit must
be able to move from frame #2600 to frame #2590 to show a death sequence.
Next month, the entire second part of New System Preview, Dragon's Lair,
will entail and be dedicated to laser disc players, so we won't go any further here
except to say that these units retail for $2295, and if you find it necessary to send
the disc player in for repairs, it would be very advisable to do two things:
1. Pack the unit VERY CAREFULLY and completely insulate the unit
2. Insure the unit for $2500.
SERVICE.
Bally Midway believes that it's our responsibility to make
your job easier. We keep your service needs in mind beginning
with our games's initial designs.
A history of conducting the industry's first service schools
is continued today through our distributors, holding service
schools all over the world. Our service manuals are specifi-
cally designed to simplify repairs and are packed in every
pin or video game we ship, saving you unnecessary time
and money locating one.
Star-Tech's reader survey speaks for us: Bally Midway is
among the leaders in service.
Get our service newsletter! Call Bally Midway's toll-free
service number: 1-800-323-7182.