Star Tech Journal

Issue: 1984-January - Vol 5 Issue 11

27
STAR*TECH JOURNAL/JANUARY 1984
"Rally Video Car" continued from page 26.
Next month we will cover the last set of schematics I have and if room
permits I will include a symptom/remedy chart that may speed some repairs
if they need be done. The schematics to be covered include the score
summing and latch circuit, character generator, fuel video bar graph, and
possibly some other goodies that may be of interest to you. See you then!
The crash circuitry is basically self-explanatory and brieMsimply
controls the video circuits discussed in part 1. CRASH AND
H are
enabling signals that cause the screen to flash at a l 4Hz rate whenever the
player's car runs over some obstruction. PC RASH is a signal that blanks the
player's car off the screen during a crash. The 7 4123s and 5 56 respectively
located at H6 and HS trigger and time the crash cycle.
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28
STAR*TECH JOURNAL/JANUARY 1984
PIONEER'S
LATEST VIDEODISC PLAYER/LD-V1000
Designed for special purpose applications, the
Pioneer LD-Vl 000 offers features tailored for
external computer control in original equipment
(OEM), industrial and other high usage
environments. This product realizes the
frequently requested concept of a laserdisc
turntable, a deck with only the basic mech-
anisms leaving control and integration to the
end users' customized requirements. Typical
applications include simulators, high level
CAI systems and the increasingly popular
arcade video games. The player can handle
heavy-duty, aluminum-backed CA V ( constant
angular velocity) discs as well as standard
CAY discs.
According to Ron Butler, Pioneer's vice
president of industrial sales, key features of the
LD-VlOOO include full random access to 30
minutes of video with two channel sound,
54,000 still frames or combinations thereof per
side. The player can randomly access any of
the frames in a maximum access time of three
seconds. "A new feature of this player which
helps to improve random access time capability
is multiple jump track capability," Butler
pointed out. "That is, the player can perform
multiple track jumps in selected increments up
to 100 when so programmed Maximum skip
time is less than five milliseconds."
The LD-Vl 000 has a bi-directional parallel
computer interface with continuous player
status output at speeds of 3 3 milliseconds per
command and 17 milliseconds for status output.
The player can also load disc resident data
dumps into its random access memory (RAM)
and then send that data to the host computer.
Operational features of the Pioneer LD-
Vl 000 include play, fast play at one, two,
three, four or five times normal play speed, step
frame, still frame, scan, frame accurate search
and autostop, and selectable display of frame
number, regis!'!! r..umber and register contents.
There are 512 user registers in the players'
RAM.
Two selectable audio channels on the LD-
Vl 000 can be utilized during variable speed
fast play for special audio effects.
Front panel features on the LD-V 1000 are
power on/ off with indicator lamp and reject/lid
open. All other functions are controlled
through a parallel input/output by an attached
computer.
The LD-VlOOO can be satisfactorily
operated in temperatures ranging from 41 ° to
104°F (5-40°C) at0 to90% humidity. The 33-
pound player is 5.6 inches high by 20.7 inches
wide and 15.6 inches deep.
The LD-VI 000 has a published price of
$1,200 in quantities of one to ten units with
discounts available for larger quantity
purchases.
***
ARDAC
* NOTE ACCEPTORS: RESISTOR CHANGE, NEW ALIGNMENT CARD
* HOPPERS: CRIMPING PROBLEM, COIN JAM IMPROVEMENT
* TROUBLESHOOTING TIP: INTERMITTENT VENDS
NOTE ACCEPTORS
HOPPERS
ARDAC has recently changed the two grid
Due to a crimping problem, ARDAC has
found that some hoppers have been shipped
that do not have the pins properly seated in the
connector. The connector is located at the
bottom rear of the hopper and is the connector
which is plugged into the hopper harness. The
pins should be checked to see if they can be
pulled out from the connector. Defective pins
can cause the following problems: no motor on
in re-fill or dump moae, no payout, no emitter
lights. Units affected have serial numbers
beginning with 033 , 043 , 053, and 063.
In April 1983, ARDAC began shipping
hoppers that had only two thumb screws holding
the clear upper channel front. At the same time,
lamp resistors mounted on the small board next
to the master board During an acceptor inhibit
condition, there is a great deal of heat build-up
in the resistors, which causes them to de-solder
from the board. This in turn causes intermittent
missing vends and poor acceptance. The new
resistors are smaller and provide for greater
heat dissipation.
A new alignment card has been developed
that can be used to make all electrical adjust-
ments on SSTR/SSTR2 units. This is a
Universal Alignment Card that can be ordered
from the ARDAC Parts Department under
part number 49x218.
ARDAC changed the lower support blocks so
that they would hold the upper channel front.
This improvement was made to simplify
clearing coin jams.
TROUBLESHOOTING TIP
Troubleshooting tip for intermittent missing
vends: Tum the clearing circuit control (R-8 on
the acceptor master board) fully clockwise. If
this solves the intermittent vend, the problem is
likely to be the grid lamp. It should be replaced.
000

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