Computer Space TV questions

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Does anyone know anything about the TV used in computer space? Has it
been modified in any way prior to being installed? If I found an old
TV with UHF inputs, would that work? The wiring is interesting, the
Video and Audio connections attach to the UHF input and the ground to
one of the VHF inputs, while the other VHF input has no hook up. I
ahve a computer space in which the TV is removed and the TV appears not
to be working. No static on the screen or hiss from the speaker.
 
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To my knowledge,
The TV in computer space is just a standard 15" vacuum tube B/W.
The video wire from the computer is hooked to the final amplifier stage
(?); the TV tuner circuit is not used / bypassed. The audio wire from
the computer is hooked to the sound amplifier in the TV. The speaker in
the TV is removed from the casing and placed on the back door.
Refer to the TV schematics in the manual.

I would try and have your original TV repaired. Keep the originality,
especially in this game. Take it to a shop.

Marcel
 
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The original TV is a GE Adventurer II and you can find them on eBay
from time to time (I did). You're correct about bypassing the tuner
and connecting directly to the inputs. Especially for Computer Space,
you've got to have the original TV in there. Get the old one fixed if
you still have it, or search the net for an original type replacement.

I looked in flea markets and Salvation Army stores for months before
finding one on eBay. Apparently the 15" tube was the *big screen* of
it's day since all I could find were always 13" tubes. FWIW the front
of the TV case is used for mounting in the game and the original vinyl
handle is still in place which looks kinda funny.

Mike Doyle
 
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"danthepup" <danthepup@aol.com> wrote in message news:<1113410898.627277.226260@g14g2000cwa.googlegroups.com>...
> Does anyone know anything about the TV used in computer space? Has it
> been modified in any way prior to being installed? If I found an old
> TV with UHF inputs, would that work? The wiring is interesting, the
> Video and Audio connections attach to the UHF input and the ground to
> one of the VHF inputs, while the other VHF input has no hook up. I
> ahve a computer space in which the TV is removed and the TV appears not
> to be working. No static on the screen or hiss from the speaker.

It's a General Electric Model Number SF3101BK 15 SF Chassis, or you
can try a SF3102VYE 15 SE Chassis. I have heard the Panasonic WV-5410
monitor will do, it's a 15"
The TVs are late 60's early 70's black&white units that were using
vaccuum tubes.
I have a number of pictures showing the guts on my site. I also have a
contact who services Computer Space machines plus their TV sets.

computerspacefan@hotmail.com
http://www.computerspacefan.com
 
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My concern in taking it to a shop is that if the TV was modified as you
indicate the shop may have no idea how to handle that or how to test
it. I imagine the first thing a shop would do it reconnect the tuner,
I am not sure how else they could determine if the set was working at
all. I was getting a single verticle line down the center and some
sound, now I am getting nothing at all. I think the problem is the TV
but now I am not so sure. Is there a way to test the set? Some other
video/audio input to see if I get any picture or sound?
 
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you've got horizontal field collapse ?

a solid white line running from top to bottom ?

they should be able to fix that no problems.. or you could shotgun repair
the board... parts shouldnt cost alot for an old monitor like that..

- Chris.

"danthepup" <danthepup@aol.com> wrote in message
news:1113485991.108758.118150@z14g2000cwz.googlegroups.com...
> My concern in taking it to a shop is that if the TV was modified as you
> indicate the shop may have no idea how to handle that or how to test
> it. I imagine the first thing a shop would do it reconnect the tuner,
> I am not sure how else they could determine if the set was working at
> all. I was getting a single verticle line down the center and some
> sound, now I am getting nothing at all. I think the problem is the TV
> but now I am not so sure. Is there a way to test the set? Some other
> video/audio input to see if I get any picture or sound?
>
 
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Archived from groups: rec.games.video.arcade.collecting (More info?)

I had horizontal field collapse, but now I have a blank screen. I
started thinking it might be the game boards but I rigged a hookup to a
standard composit monitor and I did get a video signal. The picture
looked messed up as you might expect on a composit color monitor, but
was enough to let me know that the game appears to be working. I took
the TV to a local guy who looked at me as if I just walked in with a
Coelacanth. I thought those things were extinct! Anyway, I showed him
the diagram from the manual and he started rattling off the functions
of each of the tubes so it left me feeling pretty good about leaving
the set with him. Said he would check the B+ (which I already know to
be good) and has a friend with a tube tester. I'll pass on any info I
get, nice to be able to get a local guy to give it a once over for $15
even if it doesn't pan out. Either way I could use a replacement set
as a back up if anyone has one collecting dust they would part with.