O2 help

[dommie]

I am the proud owner of 2 completely non-functional O2 systems. Both systems have the same issue - unit powers up but all I get on screen is a jumble of junk or a solid color screen. Like this:

 

 

I posed this question before and the consensus was that the capacitors were bad, and that's where I left it. Well, I finally got around to replacing the caps. I replaced all but 1 of the electrolytic caps (I bought the wrong cap for the 1uF one at the top of the board). I hooked it all up after I finished and I got the same exact problem.

 

So, any ideas? I'm kind of at a loss as to what the problem could be. I'll replace that last electrolytic cap when I get a chance, but I'm not all that hopeful. I literally saw no change at all from replacing the old caps. Should I be looking into replacing the ceramic caps as well? Any other issues anybody can think of that might cause this?

 

Thanks in advance.

[fiddlepaddle]

I've had a couple of O2s sitting on my shelf for about a year now, and have been slowly collecting the games (I have about 20 so far). I guess I should try them out.

[Chris Leach]

My suggestion for the scrambled screen would be to try some cleaning. Maybe there is dut, dirt or possibly pizza in the cart slot. Pizza cause it could be anything...clean the contacts of the systems and the games with a fine tooth brush and you should be good to go....

[dommie]

My suggestion for the scrambled screen would be to try some cleaning. Maybe there is dut, dirt or possibly pizza in the cart slot. Pizza cause it could be anything...clean the contacts of the systems and the games with a fine tooth brush and you should be good to go....

 

Pizza?!? Seriously, I've cleaned the game carts and they all look good to go. I have about 30 of them, and the same or similar result for all. I really don't think it's the cart contacts. I can't be the only one with incredibly bad luck with O2 systems. Somebody out there must have some insight about what's going on.

[fiddlepaddle]

I've cleaned the game carts and they all look good to go. I have about 30 of them, and the same or similar result for all. I really don't think it's the cart contacts. I can't be the only one with incredibly bad luck with O2 systems. Somebody out there must have some insight about what's going on.

I think he was referring to the connector in the hole in your O2 where you push the carts INTO, not necessarily the carts themselves... you may have oxidation or gunk in your SLOT connector.

[dommie]

I've cleaned the game carts and they all look good to go. I have about 30 of them, and the same or similar result for all. I really don't think it's the cart contacts. I can't be the only one with incredibly bad luck with O2 systems. Somebody out there must have some insight about what's going on.

I think he was referring to the connector in the hole in your O2 where you push the carts INTO, not necessarily the carts themselves... you may have oxidation or gunk in your SLOT connector.

 

 

Yeah, I looked at those very closely and they look pretty clean and corrosion free. I could try maybe hooking wire leads from the cart pins to the cart connector, but that would be very time consuming because I'd have to make up a whole bunch of wire leads. But the contacts look remarkably good, so I haven't bothered.

 

I dunno, I'm at a loss as to what the problem could be.

[JacobZu7zu7]

I am the proud owner of 2 completely non-functional O2 systems. Both systems have the same issue - unit powers up but all I get on screen is a jumble of junk or a solid color screen. Like this:

 

 

I posed this question before and the consensus was that the capacitors were bad, and that's where I left it. Well, I finally got around to replacing the caps. I replaced all but 1 of the electrolytic caps (I bought the wrong cap for the 1uF one at the top of the board). I hooked it all up after I finished and I got the same exact problem.

 

So, any ideas? I'm kind of at a loss as to what the problem could be. I'll replace that last electrolytic cap when I get a chance, but I'm not all that hopeful. I literally saw no change at all from replacing the old caps. Should I be looking into replacing the ceramic caps as well? Any other issues anybody can think of that might cause this?

 

Thanks in advance.

 

I think by looking at that picture, could be that a person left both those consoles on with no game inside, or would pull the game out while it's still on?? I think I read at Videopac.org, that that guy from UK...

broke his videopac by doing something like this, read his section...

 

"""My console actually broke after about three months, I didn't actually get it from Argos in the long run, it was bought from my local Toymaster as a Christmas gift.

 

It broke because I discovered a neat trick with PAC no 1. Race/Spinout (did anyone ever actually play cryptogram ???), by starting the game, removing the cart and re-inserting it, the walls disappeared and you could wiz around in a wraparound world.

 

Head down in shame we took it back to the shop denying any abuse of the system, and after about 2 weeks they replaced it.""""

[Seob]

I'm pretty sure a videopac (odyssey2) won't break when plugging in a game when it is turned on, or removing a game when it is on.

Since the european version the videopac, lacked a power switch. If it would break because of this, then why have the power switch removed?

[JacobZu7zu7]

I'm pretty sure a videopac (odyssey2) won't break when plugging in a game when it is turned on, or removing a game when it is on.

Since the european version the videopac, lacked a power switch. If it would break because of this, then why have the power switch removed?

Iv'e never owned a videopac so I don't know. Just thought maybe that might

be the problem, but I don't think so after reading Seob's post.

 

Maybe the problem is uh, the power supply is not sending enough voltage to the computer?

Normally when I see that kinda picture after turning on a game, means

the game is dirty... not the computer itself, but the game.

 

My "War of Nerves, Pocket Billiards" had some problems like this I swabbed the

Billards game for example with a dry q-tip (not even wet) and it's perfectly fine again.