Pong AY-3-8500-1

KevinMullins

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I know there's a console section, but figured I may get more of a techy response here.

I dug out an old "Pong" TV console jobby I've had for years. I remember the picture being kinda squigly and whatnot last time I used it, now I get no true image whatsoever. The "ants" image does change, just not in a recognizable way.

It has the AY-3-8500-1 all in one chip in it......I found a datasheet but need advice on how to maybe check the Sync Output, don't have a scope or anything like that.
Of course it has a slew of components after the output, but I really hadn't dug into it.

It's not a big deal that it doesn't work correctly, but I had a potential project I was thinking of using it for. (well, the guts of it anyways)
 
Do these have caps in them? Maybe crack it open, write the values down, and place an order on mouser. I know some vintage consoles from the 80's, have problems that can sometimes be fixed with new caps.
 
Not really much you CAN do with a sync signal other than checking with a scope. However you can try sending the signal throug a video line to an arcade monitor (to act as a quasi scope) and see what it looks like. Should be a nice clean line/band.
 
Do these have caps in them? Maybe crack it open, write the values down, and place an order on mouser. I know some vintage consoles from the 80's, have problems that can sometimes be fixed with new caps.

I popped it open looking for general broken wires, bad solder, corrosion, etc.
The only caps in it are of the ceramic type, lots of them, but no electrolytics.

Not really much you CAN do with a sync signal other than checking with a scope. However you can try sending the signal throug a video line to an arcade monitor (to act as a quasi scope) and see what it looks like. Should be a nice clean line/band.

Might just do that.... I can run it to my test bench monitor and see what it looks like.
 
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