Star Tech Journal

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major difference in the new cabinet
is that the coin box is not accessible
through the back of the game as it
was in the old cabinet. (The only
way to get to the coin box is through
the coin door.)
GAME BETTINO
OPTIONS FOR
BPACEACE
DIPSWITCH
SPECIFICATIONS:
off = 2 coins/credit.
on = 3 coins/credit.
A1
off = 3 lives/credit.
on = 5 lives/credit.
A2
A2
A3
10. Correct pin out for inputs on
U20
(74LS244)
effective
9/16/83.
DIFFICULTY SETTING
off = Difficulty increases automatically after player goes
through five consecutive episodes without losing
a life.
on = Difficulty increases automatically after player goes
through three consecutive episodes without losing
a life (harder setting).
A3
off = Slow difficulty increase.
on = Fast difficulty increase (harder setting).
A4
off = Attract mode audio on.
on = Attract mode audio off.
A5
off = Attract mode audio plays continuously.
on = Attract mode audio plays only one out of eight
times.
A6
Not used.
A7
Not used.
BO
off = Pioneer model 7820 videodisc player.
on = Pioneer model LD-V1000 videodisc player.
B1
Not used.
B2
Not used.
B3
Not used.
B4
off = Default to setting of A1 and A2 (normal).
on = Free play (2 credits always).
B5
off = Default to setting of A1 and A2 (normal).
on = Unlimited lives.
B6
off = Normal.
on = Enable frame display.
B7
off = Normal.
on = Diagnostics mode.
CONVERSIONS
Now fora II of you who are interested
in converting your Dragon's Lair to
a Space Ace, there are two ways of
doing this:
1 . You can convert from Dragon's
Lair to Space Ace without exchang-
ing the players.
2. You can convert from Dragon's
Lair to Space Ace and exchange
your old PR-7820 disc player for a
new LD-V1000 unit.
Now there has been a lot of
politicking going on between the
distributors to sell kits. I personally
know of one distributor who was
advertising and selling the kit with-
out the disc player exchange for
$150.00 below cost, but was
marking up the kit with a disc player
$300.00 above what others were
because he knew that he could
convince the people to exchange
the playerto"reduce maintenance"
so shop before you buy!
'
8. Reset signal sent from U23, pin
9to U16, pin 1 to cure false coin
count on power up.
9. Reference letter not used.
(As shown in white on PC Board)
AO
7. C63: Was0.001 ufdisc. Became
470pf effective 9/5/83.
When you convert your Dragon's
Lair to Space Ace you will receive a
videodisc, decals, marquee, control
panel, circuit panel assembly, 16-
pin ribbon cable, adaptor harness,
control panel harness, Space Ace
ROM set, some screws and a
manual.
In the LD-V1000 conversion kit
you receive instructions for remov-
ing the PR-7820 disc player,
mounting the LD-V1000 disc player,
modifying the wiring harness, and
exchanging the P.C.A. logic board.
In the LD-V1000 conversion kit
you will also receive a complete
parts list, instruction manual and
65 component parts including the
LD-V1000 disc player.
NOTES:
The major difference between the
Dragon's Lair cabinet and the new
Space Ace dedicated cabinet is
that the area where the disc player
sits is partitioned off in the new
cabinet. This helps to keep heat
out of the disc player area. Another
MAOICOM MAIN
LOGIC SCHEMATIC
REVISIONS
11 . C63: Was 470pf disc; became
330pf disc.
C17: Was 330pf mica; became
330pf disc.
1. Original release.
Addition of U31 (74LS74) to
divide clock.
2. R3: Was 1 K; became 300.
DO on U20 incorrectly shown
as pin 8. Changed to pin 18 on
6/23/83.
Y1: Was 4.000MHz; became
16.000MHz.
U24: Was 74LS04; became
74S04.
3. Addition of capacitor C63, 220pf
disc between U24, pin 3 and
ground. 6/27/83.
Addition of R29 between U29,
pin 4 and C24.
Addition of R50 between U30
pin 4 and C50.
'
4. C54: Was 0.001 uf disc. Became
0.1 uf disc on 6/29/83.
C63: Was 220pf disc. Became
0.001 uf disc on 6/29/83.
These two additions allow
option for U29 and 30 with the
following components:
LM383
R49, R50 = 0 ohm jumper
C24, C50 = 0.2 Disc
74LS244 inserted between
4MHz signal and U1 (Z80), pin
6. U17, pins 13 and 7 used-
these were formerly a spare
gate. 6/29/83.
5. C40, 0.01 disc tied between
U22, pin 2 and ground is deleted.
7 4LS244 inserted between 01
collector and U22, pins 1 and 2.
U17, pins 11 and 9 used-these
were formerly a spare gate.
U1 (Z80), pin 25 cut from U7
(MC68705P5), pin 9. U1 (Z80),
pin 25 tied to R48 (new addition)
4.7K ¼W 5% resistor. Other
side of R48 tied to +5v.
U18(74LS245), pin 19cutfrom
U7 (68705) pin 14. U18, pin 19
tied to +5v.
U17 (74LS244), pin 17 cut from
U7, pin 19. U17, pin 17 tied to
+5v.
U23 (74LS244), pin 1 cut from
U22 (7 4LSO0), pin 11 . U23, pin
1 tied to ground.
All of "5" above were effective
on 7/8/83.
6. Deletion of the following effec-
tive 7 /8/83:
U5
74LS244
U6
74LS393
U12
74LS244
U13
74LS393
U17
74LS244
U18
74LS245
Substitute U23 for U17
(7 4LS244) for clock signal into
Z80 (U1 , pin 6 from U23, pin 7)
and reset signal into U22, pins
1 and 2 from U23, pin 9 effective
7/8/83.
CA2002
2.2ohm,¼W
0.1 disc
Addition of Jumper W1, when
installed, allows board to be
used with Pioneer 7820 disc
player with proper software.
Deleted: U7 MC68705
Addition (reinstallation) . U6,
74LS393; U13, 74LS393
U6, pins 2 and 12, and U13,
pins 2 and 12 all grounds.
U6, pin 6 tied to U26, pin 11
(RTC).
U13, pin 13 tied to U26, pin 5
(GI CLI().
All of "11 " above effective
10/10/83.
"11" revision schematic is for
"3" revision printed circuit board
used with LD-V1000 laserdisc
player.
Once again I say thanks to the
Cinematronics customer service
department for all the help! If you're
lucky, you might even receive a
memo from Pat on his special sta-
tionery! The customer service
department is still open 7 a.m. to 5
p.m. California standard time and
the number within the state of
California is 619/562-7000. Out-
side California call toll free
800/854-2666.
They are there to help!