2600 - best video out option?

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LardoBoffin
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Joined: Thu Jun 21, 2018 7:13 pm

2600 - best video out option?

Postby LardoBoffin » Sun Apr 14, 2019 5:27 pm

I have just got a 6 switch woody 2600 and composite modded it using the following:-

https://www.thefuturewas8bit.com/shop/a ... o-mod.html

On LCD tellies the result varies from poor to awful with large bands going up the screen (fairly slowly - maybe 2 to 3 seconds from bottom to top). In between these bands I can sometimes see a crystal clear piece of screen.


0AA7EB1E-89D4-4095-BC02-F8E7340A85EB.jpeg


On an old glass screen telly the results are significantly better.

I don’t know if I am expecting too much - I am used to ZX81s going from being awful to pixel perfect on the same LCD tellies with similar mods.

What are the output mod options for these? Aside from the one I have used I can see this fairly sophisticated one:-

http://etim.net.au/2600rgb/

Any suggestions welcome!

Thanks

Lardo
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Atari 520STFM with 4MB of RAM
Atari 2600 6 switch woody
Atari 800 - dodgy keyboard being fixed (I hope)
Atari 800XL
Lots of 8 bit stuff

LardoBoffin
Atari User
Atari User
Posts: 36
Joined: Thu Jun 21, 2018 7:13 pm

Re: 2600 - best video out option?

Postby LardoBoffin » Mon May 06, 2019 7:55 am

I bought a game and plugged it in to test (no controllers plugged in) and no band going up the screen! I plugged in a joystick and the bands came back.
Clearly to do with the joysticks I thought. I cleaned the connectors and pins etc. and it made no difference.
I resoldered the connectors and checked for dry joints. Nothing.
I took all the switches apart and cleaned them. No difference.
I happened to knock the comp cable while it was on and the banding changed. If I moved / held the cable I could get rid of the banding completely.
Is the cable picking up interference? It is just a cheap one that came with the comp mod kit.
Would it be worth getting one that is shielded?
Atari 520STFM with 4MB of RAM
Atari 2600 6 switch woody
Atari 800 - dodgy keyboard being fixed (I hope)
Atari 800XL
Lots of 8 bit stuff

LardoBoffin
Atari User
Atari User
Posts: 36
Joined: Thu Jun 21, 2018 7:13 pm

Re: 2600 - best video out option?

Postby LardoBoffin » Mon May 06, 2019 8:18 am

Here is the comp mod installed. After coming to the conclusion it was probably the comp cable I experimented moving it about inside the case and that also made a difference.

EA54E2A7-9F7F-4B77-BD2A-7D2B13424F57.jpeg


I notice that other comp mods show taking the video signal etc. from the PCB directly next to the comp mod board. I may try this as well - currently the wires are connected directly to the main PCB.
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Atari 520STFM with 4MB of RAM
Atari 2600 6 switch woody
Atari 800 - dodgy keyboard being fixed (I hope)
Atari 800XL
Lots of 8 bit stuff

DoG
Atari maniac
Atari maniac
Posts: 88
Joined: Sun Apr 01, 2018 11:02 pm

Re: 2600 - best video out option?

Postby DoG » Mon May 06, 2019 3:24 pm

Hi!

I don't know anything about 2600, but...

Exxos is doing a 2600 video out something right now... check it out and this thread.

LardoBoffin
Atari User
Atari User
Posts: 36
Joined: Thu Jun 21, 2018 7:13 pm

Re: 2600 - best video out option?

Postby LardoBoffin » Mon May 06, 2019 3:45 pm

DoG wrote:Hi!

I don't know anything about 2600, but...

Exxos is doing a 2600 video out something right now... check it out and this thread.


Thanks. I will have a read.
Atari 520STFM with 4MB of RAM
Atari 2600 6 switch woody
Atari 800 - dodgy keyboard being fixed (I hope)
Atari 800XL
Lots of 8 bit stuff


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