On Fri, 31 Mar 2017 17:25:50 -0700,
et...@whidbey.com wrote:
>The board I am replacing has only 6 EPROMs but still looks similar.
>Thanks for mentioning picture taking, I will for sure be doing that. I
>didn't know the programmers were so inexpensive now.
This is the one that I use:
<
http://www.ebay.com/itm/291531758605>
$30 plus $10 shipping. Maybe add about $15 for a 9V power supply,
DB25 extension cable, and USB cable.
There is a later version that runs on a USB port:
<
http://www.ebay.com/itm/290924359652>
$50 plus $14 shipping.
Notice that it uses a parallel port computah interface. Don't bother
trying a USB to parallel adapter cable. It won't work. Don't use a
ribbon cable for a DB25 extension. Mine went intermittent from
bouncing around in my car. I wasted a few days finding the problem.
>Since I have lots
>of old EPROMs from a few other FANUC controls I am gonna order a
>reader/programmer and see if I can copy the junk ones.
The hard part is getting the jumpers and switches correct. Don't
guess. One wrong switch or jumper and your device is blown. Also,
pay attention the EPROM manufacturer. Even though the chip number
might be similar, each mfg has a different voltage, timing, and
programming algorithm.
You'll also need an EPROM eraser. I suggest you get one with a drawer
that can handle more than one EPROM at a time. The UV light does not
last very long. If you're erasing one at a time, you'll burn out the
light after about 500 erases.
<
https://www.google.com/search?q=eprom+eraser&tbm=isch>
<
http://www.ebay.com/sch/i.html?_nkw=eprom+eraser>
The really cheap ones are fine and all the mechanical timers are noisy
and obnoxious.
>So I'll be
>asking for advice soon about which programmer to get for my particular
>devices and how to avoid scrapping them.
>Thanks,
>Eric