Star Tech Journal

Issue: 1982-December - Vol 4 Issue 10

16
STAR*TECH JOURNAL/DECEMBER 1982
"Make the choice that
difference!" The choice you
could mean a big difference in
Find out about the alternative
Gaming Schools can offer.
makes the
make now
your future .
that Nevada




Approved for the training of Veterans
Tuition Plans Available
Day and Evening Classes Starting Now
Government Loans & Grants for Qualified Students
Call or Write Today For More Information.
Train with our expert staff to become
qualified in· every phase of the repair and
maintenance of video games, electronic
pinball machines, juke boxes, T.V .
monitors and micro-processors.
NEVADA GAMING SCHOOLS, INC.
3100 Sirius Ave. , Suite ST., Las Vegas , Nev. 89102
(702) 873-2345
"The Choice That Makes The Difference Since 1972"
WE
_ _ _ I_N_QizITIVE
REPAIR
EVERYTHING
This month's InQuizltive was sent to us by Ed Zylka/Stem Electronics.
32. Complete the Truth Table for the "Set-Reset" flip-flop made up of 2 NAND gates
(½-74LSOO).
FAST!
Board
Specialists
Video Games
Domestic & Foreign
Technicians
formerly with Bally
Send your
repair work to:
REPAIRS
UNLIMITED
117 Robin Road
Altamonte Springs, FL 32701
(305) 339-6601
Truth Table
R
Function
Invalid*
Set
Reset
Latch
r>--------1
s
0
0
1
1
R
0
1
0
1
Q
Q
*
*
*When in this state, the circuit is not in a valid
flip-flop operating condition, so this is
disregarded.
lnQuizltive Answers (November)
28) Source of EMF, set of conductors, load, means of control.
29) No, the output voltage is only filtered, not regulated.
30) To turn off the video intensity amps when deflection is not occurring.
31) + 12v
MURPHY'S IA W #410
Experience varies directly with requipment ruined.
17
STAR*TECH JOURNAL/DECEMBER 1982
TAITO
"JUNGLE KING" TO "JUNGLE HUNT' CONVERSION KIT
This conversion kit will allow you to convert a
T aito upright model "Jungle King" game into a
Taito upright model, "Jungle Hunt" game. All
parts needed are included in this kit, and the
conversion is easily performed. After following
the step-by-step instructions, you will soon be
able to operate your "Jungle Hunt" game. A
complete Game Manual for a "Jungle Hunt"
game is provided for learning the operation
features, game description, etc., of the T aito
"Jungle Hunt" game.
Taito Conversion Kit
"Jungle King" to "Jungle Hunt"
PARTS LIST
ITEM TAITO PART NO.
DESCRIPTION
1
16-00025-001 EPROM Set-JHCNV
2
63-00114-001 Lexan Overlay-J.H. UPR
3
47-00016-005 Coverglass-J.H. UPR
4
47-00012-013 Marquee, Screened-J.H.
5
72-00031-001 Game Manual-"Jungle
Hunt"
6
72-00032-001 Conversion Kit I nstructioos
7
79-00055-001 Instruction Card-Switch
Settings
The EPROM Set consists of 7 EPROMs for
the top ROM PCB and 3 EPROMs for the
CPU (bottom) board.
EPROM Replacement Procedure:
1. Unlock and open the Rear Door. The
"Jungle King" Game PC boardset, located
on the inside of the Rear Door should be
removed as follows: Disconnect connectors
G, H, and T from the boards. Loosen and
tum the Stop Bracket; then pull the 3
boards (as a unit) towards you, out of the
board guide. Set the boardset on a flat work
surface component side facing up.
2. On the topmost (very small). circuit board,
remove and replace the EPROM chips as
shown in the table below. Refer to Figure 1
for EPROM chip locations as needed.
Remove the "old" chips, and replace with
the "new" chips supplied with this kit. The
label markings (KN52 etc.) denote the chip
identification numbers. IMPORTANT:
The notches in all EPROM chips MUST
face in the same direction when installed.
Chip KN55 will NOT be removed, and
should be used as a guide for notch direction.
When completed, inspect all replacements
to be sure all pins are in their sockets, and
that there are no bent pins.
OLD
KN49
KN50
KN51
KN52
KN53
KN54
KN56
NEW
KN49A
KN50A
KN51A
KN52A
KN53A
KN54A
KN56A
3. Remove the bottom board from the boardset
by gently squeezing each of the six plastic
spacer/fasteners, allowing the bottom board
to be separated from the remaining boards.
4. Looking at the component side of the
bottom board, and referring to Figure 2 as a
chip location aid, make the following chip
replacements. IMPORT ANT: The notches
of all installed chips must face the same
direction as do notches of surrounding
chips.
Remove chip KN41 and replace with chip
KN41A from this kit.
Remove chip KN46 and replace with chip
KN46A from this kit.
Remove chip KN48 and replace with chip
KN48A from this kit.
Inspect all replacements to be sure all pins
are in their sockets, and that there are no
bent pins.
5. Install the bottom heard back to the board-
set, pressing lightly around each spacer to
refasten. Install the boardset into the board
guides and refasten the G, H, and T con-
nectors. Doublecheck all connections.
The conversion is complete after replacing the
cosmetics; control panel overlay, CRT cover-
glass, and the game marquee. Contact your
distributor for further information and
availability.
~ ~
~ □
~ ~
~ ~
~ ~
~ ~
2
2
,.ca:
0
FIGURE 1
FIGURE 2

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