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GORF Joystick opto replacment

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Mattrock1

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Feb 2, 2006, 10:45:14 PM2/2/06
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I am posting this for future GORF repair googlers

I have a GORF I just recently purchased that did not have the up and
down movement with the joystick. Left and right worked OK. Turns out
after a little troubleshooting, the opto for the down stroke was
defective that made the logic board think you were holding the stick
down all the time. Then the real fun started. The opto on the board
is no longer available. I tried all the usual old buzzards that have
obsolete parts, but no joy. To make a long story short, I found that
the NTE 3100 opto has the same characteristics, same housing, same
mounting hole dimensions, but the leads were just a hair wider than the
original. Being faced with having a vertically challenged GORF, I
opted for a little modification. Its actually quite simple. Get out
your dremel with a bit just big enough to fit a lead through, and drill
holes just outside of the old ones. I mean as close as you can to the
others. The holes end up still on the solder pads of the old and
require no jumpers. SLip in the new NTE3100 and solder it up... and
your downtown. Or uptown, depending on which opto was defective ;))

You will meet a gorfian doom, space cadet.

Matt

Joey

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Feb 2, 2006, 11:07:33 PM2/2/06
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Interesting.. Believe it or not, when I first got into the hobby around
2000, one of the 5 game lot I bought was a Gorf..and I had to replace an
opto and found it at RADIO SHACK!!! Those were the days, huh.


Joey
joey...@hotmail.com


"Mattrock1" <matt...@aol.com> wrote in message
news:1138938314....@g44g2000cwa.googlegroups.com...

syn...@gmail.com

unread,
Feb 3, 2006, 10:23:07 AM2/3/06
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Matt, thanks for taking the time to post your opto fix. It's post like
yours that make rgvac such a valuable resource for the collecting
community.

GORF on!

Mike Doyle

Commander Dave

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Feb 3, 2006, 8:19:05 PM2/3/06
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Yes, thanks for posting! It's always good to get people who share their
idea's, mod's and fixes. The only game I have right now is a Gorf and it
sometimes has some problems thinking the handle is pressed up, so this
should come in handy.

-Commander Dave

"Mattrock1" <matt...@aol.com> wrote in message
news:1138938314....@g44g2000cwa.googlegroups.com...

>I am posting this for future GORF repair googlers

> <<snip>>


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