Star Tech Journal

Issue: 1987-January - Vol 8 Issue 11

STAR•TECH Journal
~
intendo PLA YCHOICE 10 Front Screen
By Nintendo Service Department
Redrrond, Washington
rue to the problem with the plexiglass
front screens of the PLAYCliOICE-10
cabinets becoming excessively scratched
from the gun, we have made a retrofit
nodification kit for the entire front
screen assembly. This nodification kit
(illustrated below) includes two (2)
pieces of glass, one (1) middle nounting
bracket, rrounting screws and installation
instructions.
January 1987
(3)
Data East LAST MISSION:
No Vertical Deflection
By Data East Service Dept.
San Jose, califomia
Symptom: No vertical deflection.
Solution: Resolder connections on
rronitor PCB.
Data East's Service departnent has
received several calls regarding failure
of the Wells-Gardner 19K5603 rronitor
chassis used in the LAST MISSION upright.
'lbe IAST MISSION garnes that may be
affected are serial nurrbers 279800 to
280055.
The rronitor suffers from bad solder
connections on the Main PCB. 'Ibis causes
some corrp:>nents to crack their solder
connections and the rronitor may not
operate when the game is received. The
usual failure node is no vertical
deflection, just a horizontal line across
the center of the screen.
'lbe Nintendo part number for the complete
nodification kit is PCHU-12-16 and is
available through any authorized Nintendo
distributor.
*
STAR•TECH JOURNAL, January 1987,
Volume 8, Number 11. Copyr;ght (cl 1987
by Star•Tach Journal, Inc. ALL rights
reserved. Address inquiries to: POB 1065,
Merchantville, NJ 08109. Advertising rates
on request. Phone: 609/662-1080.
James Calera: Publisher/Editor.
Check and resolder the capacitor leads on
C313, and l0Ornf@ 160vdc electrolytic.
This capacitor is 2 inches tall and is
subject to vibration. Wells-Gardner
applies a silicon rubber adhesive around
the base of this corrp:>nent to prevent it
from rroving, however, sone of the
defective rronitor PCB.s did not have this
corrp:>und applied. Secure this capacitor
with glue if it has not been done.
Wells-Gardner will no longer be supplying
the 19K5603 chassis as they have developed
a new unit; the 19K7602 series.
All subsequent shiprrents of upright
cabinets from Data East USA, Inc. will be
using the new Wells-Gardner rronitor or the
Hantarex MIC900/E.
STAR•TECH JOURNAL (ISSN 0739-1048) is
published monthly during the first week of
each month via First Class Mail in North
America, via Air Mail elsewhere.
••••••••••••••••••••••••••••••••••••••••••
Subscription rates: USA $56, Canada/Mexico
$63 ($US), Other c ·o untrias $98 ($US).
STAR*TECH Journal
Sega ENDURO RACER
Steering Modification
By Christopher Love
Recreational Concepts, Inc.
Jenkintown, Pennsylvania
Sega ENDURO RACER has been an excellent
earning garre for our conpany, but due to
the nature of the garre play, we have been
plagued with repeated failures in the
steering asserrbly.
THE PROBLEM
The problem exists in the type of bearings
used to hold the handlebar main shaft. My
wear or play in either of the two bearings
causes the steering potentiometer gear to
pull away from the main shaft gear during
a hard "wheelie." This has caused
calibration problems and, on occasion, has
led to pot breakage.
THE SOLUI'ION
The following rrodification allows the
bracket which holds the pot to float, and
the two gears are held together with
spring pressure. Previous to this
rrodification, our garre was losing steering
2 - 3 times per week. As of this writing,
I have not received a single complaint
regarding steering problems (4 weeks).
January 1987 (4]
5. Install the rrodified bracket using (2) a
10-24 x 1/2" machine screws and (2) 10-24 •
lock nuts. Tighten these screws only
enough to prevent up/down play while still
allowing free side-to-side rrovement of the
bracket.
6. Slide the bracket up and re-install the
pot and steering gear.
7. Loosen the metric bolt which secures
the handlebar shaft bearing. Install under
this bolt a keyhook or similar device from
which the other end of the spring will be
attached. Tighten the bearing bolt.
8. Using a spring that will apply 3-4
pounds of pressure against the steering
gear, attach it to the keyhook and the
small hole you drilled in the pot bracket.
9. Lubricate around both sides of the pot
bracket to assure smooth motion.
10. To calibrate the pot is now simply a
matter of pulling back on the pot bracket
and rotating the gear to its proper
A
position.

If you have any questions or need any
assistance, feel free to call me at (215)
572-6966.
THE K:DIFICATION
1. Rerrove the pot bracket from the
steering asserrbly and renove the gear and
pot from the bracket.
UndeR5tD£
If 1£/Y
2. Viewing the drawing, extend the slot in
the bracket all the way to the edge of the
bracket using a hack saw or similar
cutting tool. This will allow easy access
to the steering pot should it ever need to
be serviced. File any burrs or ragged
edges to prevent any binding.
3. Drill a small hole in the side of the
bracket to accept one end of the new
spring.
4. Widen the bracket rrounting holes in the
steering asserrbly using a 5/32" drill.
,
@
I
I
//0-2 'f .
@LOCK MIT
LU8Rlc,4TE
(!iVTO GREASE. OR E~VIV.)

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