Cautions, Precautions & Observations
Piggy Back PCBs, CPU Sockets, WG Med Res, Surface Mount Caution,
CRT Blaster, Wms Test Rom, Cabinet Alert
James Beck
Greater Southern Distributing
Atlanta, Georgia
CABINET ALERT
SURFACE MOUNT CAUTION
Watch out! Some HS-9 cabinets have been
miswired so the "earth" ground going to the
monitor is connected to neutral and neutral is
connected to ground. That isn't too much of a
problem as long as the outlet is wired OK other-
wise YOU could get knocked for a loop. The main
symptom that you can visibly see is a definite
"Hum Bar" in the video due to the hot returning
via ground.
Surface mount I C's should NOT be screwed with
by anyone but a qualified tech that has access to
the PROPER rework tools.
WMs Tm RoM
This new "Williams Test ROM" being sold by a
second source for close to $100 is NO better than
having a known good set of F-14 ROMs laying
around.
CRT BLASTER
Heath Kit sells a good CRT rejuvinator for close
to $100 that does everything the $450 B&K
Precision does and all you have to do is solder it
together. It will payforitselfthefirst time you use
it.
WG
MEDIUM RESOLUTION
Wells-Gardner K7000 monitors that have been
adapted to "Medium Res" (i.e. 24 KHz) blow
horizontal drive transformers right and left.
CPU
SOCKETS
Manufacturers should socket their CPU's so it is
easier to plug your ICE system into the suckers
without having to either destroy or thermally
stress the CPU.
PIGGY BACK PCB
Manufacturers who stick their ROM boards on
top of the CPU board with connectors that make
it impossible to troubleshoot the CPU board
without special extenders should be subjected to
a close-range thermo-nuclear blast.