Star Tech Journal

STAR*TECH Journal
be added to the primary circuit if
desired.
The project can be enclosed in any
suitable hobby oox, you may want to drill
a few holes for ventilation. You can also
add a few resistors with a switch to
increase or decrease the output and
provide selectable ranges. I have used the
"basic model" described for many years
with great results.
TFST SET-UP
M-len the tester is to be used, its Xis
connected to the oscilloscope's
horizontal, or X input and its Y to the
oscilloscope's vertical, or Y input. 'Ihe
oscilloscope should be placed in the X-Y
mode. The vertical and horizontal gain
controls on the oscilloscope should be
adjusted to prevent trace ends from going
off the screen.
TEST PROCID.JRE
Rerrove :rower to ooard under test. If the
printed circuit or chassis under test is
grounded, the black lead should be
attached to the ground end of the
comp:ments.
Next month I'll describe how to use the
analyzer to constructively repair
equipnent.
June 1987 (10)
TROUBLESHOOTING ELECTROHOME
WELLS GARDNER MONITORS
&
troubleshooting manual covering the
I A servicing
of the most popular color video
monitors used in the Coin-Operated
Amusement Industry, has just been
published by STAR*TECH JOURNAL.
This very thorough and detailed manual
covers every aspect of monitor repair
including: Power Supply Section - symptoms
and solutions. CRT Construction and
Operation -brightness problems end
solutions. Deflection Circuitry -sync
circuit description end troubleshooting.
Color Problems -including degaussing,
purity, white balance end convergence
adjustments.
Troubleshooting Electrohome & Wells
Gardner Monitors is priced at $19.95 (US)
plus $2.50 shipping.
Distributed by STAR*TECH JOURNAL.
POB 1065, Merchantville, NJ 08109.
SERVICE MANUAL
Instructional and reference manual
entitled ELECTRONIC GAME REPAIR covering
such subjects as: Basic Electronics,
Semiconductors, Video Game Systems,
Electronic Pinball Systems,
Troubleshooting Techniques, Tools end Test
Equipment, Schematic Reading and more.
This 8-1/2 11 x 11" manual contains 65 pages
of technical information for the servicing
of electronic amusement games and is
priced et $24.95 plus $2.50 shipping.
Distributed by STAR*TECH JOURNAL.
POB 1065, Merchantville, NJ 08109.
VOLUMES/ISSUES
Some beck issues end complete volumes
remain in our inventory. Complete Volumes:
$42 ($US). Single Issues: $5 ($US).
*
INSIDE SW1TCHIKi
~
*** Send self-addressed stamped ($0.39)
envelope (#10 or Larger) for complete
index of ell articles covered since Mer79.
(Part 4)
by James Beck of Greater Southern
Distributing Co., Atlanta, Georgia will be
seen next month. DJe to the late arrival
of data specs from Sharp Mfg. on their
control logic ICs, this roonth's
installnent was held-up beyond our
deadline. 'Ihe series will continue in the
next issue with coverage of the Control
Logic Circuitry and future articles will
include Troubleshooting Methods for these
switching-type power supplies.
Availability: Complete Volumes (twelve
issues bound under one cover);
#1 ( Ma r79-Feb80),
#2 (Mer80-Feb81),
#3 (Mar81-Feb82),
#4 (Mar82-Feb83).
******************************************
ISSUE PACKAGES@ $42 (US).
Pkgf5B1 May84, Jun84, Jul84, Aug84,
Nov/Oec84, Jun85, Jul85, Aug85,
Sep85, Oct85, Nov85, Oec85,
Pkgf78; Jan86, Feb86, Mar86, Apr86,
May86, Jun86, Jul86, Aug86,
Sep86, Oct86, Novas, Oec86,