Service manual

Wells-Garnder Color Vector Monitor Guide
Page 65 of 73
THE REAL INSTALLATION/UPGRADE STORY
When I ordered the Zanen #206 cap kit, I felt the instructions were rather brief and disorganized.
There are over 30 parts to install on three PCB's! Which ones go where? These instructions
should help correct that.
Also note the Zanen cap kit #206 is based on specs for the original revision of the Wells-Gardner
19K6100 X-Y Color monitor. There have been three revisions of this monitor, to address some
of its shortcomings. Although these upgrade parts are not included in the Zanen cap kit, I would
highly recommend you install the upgrade parts while the monitor is apart. You will have to buy
some additional parts, which are listed at the end of this section. It is unknown why Zanen will
not assemble a ‘proper’ cap kit for vector collectors. Bob Roberts offers a ‘complete’ cap kit for
the Wells-Gardner 6100 vector monitor.
If your WG6100 does not work, installing a Zanen cap kit #206 can solve many problems
without you knowing exactly what is wrong. For most people not familiar with this monitor, it is
an excellent starting point to fix your monitor. And at $15 per kit, you cannot purchase these
parts that cheaply anywhere else.
To finalize your WG6100 repair, I would recommend installing a LV2000 low voltage board. At
$35 each, this will also save you considerable time, trouble and money in the end. Between the
Zanen kit #206, the upgrades described here, and the LV2000, you should end up with a working
(!) and "bullet proof" Wells-Gardner 19K6100 X-Y color monitor. Even if your monitor is
completely dead, installing these two kits and doing the upgrades should give you a working
monitor (without you knowing anything about fixing monitors too!). For more information on
this upgrade, see http://www.geocities.com/jeffhendrix67/lv2000/ .
It is also important to note that the replacement capacitors should be low ESR, 105
o
C electrolytic
capacitors for better performance. Most electrolytic capacitors are not marked ‘Low ESR’.
However, in most cases low ESR caps will have an ‘X’ stamped in the metal casing and is
something to look for if you are buying capacitors over the counter.
Key:
• Q = Transistor
• R = Resistor
• C = Capacitor (all polarized electrolytic)
• F = Fuse
• D = Diode
• ZD = Zener Diode
Note that the capacitors come in two "types":
_____
_____ | |
--| |-- radial-lead | |
~~~~~ +---+
axial-lead | |