Star Tech Journal

Issue: 1995-December - Vol 17 Issue 10

December 1995
CD
WILLIAMS
CRUISINUSA
VERTICAL OUTPUT
MONITOR F Al LURE
STAR*TEcH
Journal
4 Design Improvements to
the Industry Standard
The "Quick Release"
Ticket Dispenser
Improves serviceability
& reduces
maintenance
Mark Anderson
T. W. Gilchrist Vending
Toronto, Ontario, Canada
PROBLEM
Vertical output premature failure on Wells Gardner
25K5708 monitor in a Williams Cruisin' USA.
SYMPTOM
Horizontal line on screen.
CAUSE
Vertical output chip U601 has shorted out.
SOLUTION
Replace U601 available from any major distribu-
tor or get the replacement part from Wells Gardner.
Also check R303, 1.2 ohm/2w flameproof resistor
and D302, the high speed rectifier.
.. "Quick Release" face plate
Dynamic, new design allows the
ticket dispenser to "quickly release"
from it's face plate on your cabinet
or ticket door, no tools needed.
Easily replace one dispenser with
another in just seconds. No tools
necessary! The new face plate
NOTE
To prevent this chip from failing, perform the fol-
lowing modification to the monitor board:
retrofits any existing Deltronic
Labs machine.
Bottom METAL ticket guide
• REMOVE
W108
NEAR
U601
The extended, durable ticket guide
prevents curled tickets from catching.
AT EDGE OF BOARD.
Foolproof braking system
• INSTALL A
25
OHM,
5w
Our impressive new braking system
eliminates brake slippage, allowing
foolproof, accurate dispensing.
RESISTOR IN ITS PLACE.
Optical sensor dust cover
1
This should be done to all your monitors unless a
terminal strip is installed near the chip -in which
case the modification is already installed.
lfL_f.
Eliminates dust accumulation and
increases accuracy of the ticket count.
Another quality product from Delfronic Labs ...
the;"""""' /eOOO m licket De/Ironic Labs, inc.
*
*
*
*
120 Liberty Lane, Chalfont, PA 18914 • 215-997-7753
FAX # 215-997-9506
STAR*TEcH
Journal
December 1995
[I
i
':Just the Facts, eh?"
John Liikala • Canadian Amusements • Burnaby, BC • Canada
UNIVERSAL SHUFFLEBOARD
scoR1NG UN1T FusE
PROBLEM
Displays are dim, but when game
is coined up it starts, then imme-
diately the "Game Over" LED
comes on and ends the game.
NOTE
a D10DE MoD1F1cAT10Ns
SUBSTITUTE
NoTE2B
The suggested type to use is a
MSL fuse. This fuse consists of a
piece of fibre material wrapped
by a fuse winding. (See figure 1
for fuse pictorial.)
If the buttons are hit with a great
force, the lamps will short out and
cause the same fuses to open up
as well.
1
This unit's displays are seven-seg-
ment, 3-inch tall displays -not the
LED type.
SOLUTION
The first item to check here is the
diodes on the secondary of the
main transformer. See if the di-
odes are shorted, if not check
fuses F2 and F3. These are the
usual items that have failed. Re-
place only with fuses that are rec-
o mm ended: 1 amp slow-blo
type.
The other modification is to re-
move the two diodes and replace
it with a diode pack. An example
would be a back-to-back diode
package used in most switching
power supplies.
Some package outlines can be
TO-3P, TO-3PJ and T0-3PL.
This type can provide the current
needed to supply both the dis-
plays and the +5 volt regulator.
(See figure IA for diode package
drawings.) See figure 2 for game
board location diagram.
Figure 1
MDL Type
MSL Type
FOOTNOTES
I have noticed that the fuses do
get very warm and when MDL
type fuses are used, they melt on
the ends -causing them to open
up.
NOTE 2A
Please note that the diode pack-
age modification may not be rec-
ommended by your distributor,
but can be done at your own risk.
Both fuses are Slow-Bio Types

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