Nothing Seems to WORK!!!

[Nothing Seems to WORK!!!]

I have indeed started three posts because I wanted to get plenty of feedback. 

 

I will now use this one as the primary. 

 

After installing a new RIOT, CPU, and TIA chip plus using a new adapter, still I have a black screen. 

 

I traced the video wire from where it starts on the board to the mod board and then to the jack. It read 5.01 up to the mod board and then from the mod board to the jack it dropped down to around 4.50.

 

All in all I’ve put in new caps, chips, voltage regulator, and am using a brand new adapter and still I have no video or audio. 

 

I’m pretty much at the point where I’ll just take out all the new stuff I put into the 2600 and either use it for parts or sell it for parts... 

 

Here are some more detailed photos of the upgrades I’ve done. 

 

Thanks for trying to help.

 

[Nothing Seems to WORK!!!]

On 6/26/2020 at 6:23 PM, Nathan Strum said:

You can find TIA chips at Best Electronics.

 

But first, I'd suggest installing a cap kit. Console5 has them.

I just installed new caps today and actually ended up losing the audio. There used to be at least audio but now I have a silent black screen...

[Nothing Seems to WORK!!!]

Hello there,

 

I modded my 4 switch woody so that it has AV plugs. Everything is wired up correctly as far as I know after studying pictures and schematics. I get audio and no video. 

 

I have upgraded the RIOT, CPU, and voltage regulator but still I have the same problem. 

 

I made sure to check check and check again that everything was soldered into the correct places. 

 

I also made sure there is voltage going from the adapter to the regulator and large capacitor that is near the regulator...

 

The adapter measures at 13.97, the regulator is the same on the left and then on the right leg it is 5.05. (Good) 

 

Do you think the problem is the TIA chip? I can’t seem to find one on the web and the other new chips I got were from arcade shop. 

 

Thanks for your input if you have any.

[Atari 2600 A/V Mod problem (NTSC - 4 switch)]

On 4/12/2013 at 3:54 AM, fujisama said:

Yes! It works!

 

I checked my 5 volt pin (initialy connected to the RF box) with my xprotolab.

I don't kwow why, but 5v was low (aprox. 1V) and noisy, (it may explain the poor quality with RF output).

 

So i took 5v directly out the 7508, and --> works fine.

It's wonderful to play on a big HD screen Oo

 

Thank you !

I am having exactly the same issue and it seems like you found a fix... did you run the 5v wire from your mod board to the 7508? 

[6er won’t play games that 4 will]

 

On 6/5/2020 at 8:31 PM, Rom Collector said:

The 6 switch may have a dirty cart slot.

So a dirty cart slot may indeed still yet play some games but not others?

[AV mod but no video!]

I upgraded my 4 switch with an AV mod and the audio works but there’s no video... I double checked that all the solder points were solid and no wires were crossed.

I made sure I took out the correct transformers/capacitors/resistors...I read somewhere that amplification might be needed for newer TVs? Can y’all point me in the right direction? 

 

Here are some pictures of what I did as far as the mod is concerned. 

 

[6er won’t play games that 4 will]

Here is a picture of the screen of the games that almost work. They all look like this. 

 

Other ones such as Mrs. Pac Man show a black screen. 

 

Others such as as space invaders work flawlessly! 

[Av mod- audio works but no video?]

I nodded my 4 switch with a av mod I found on eBay. The audio works perfectly but there is no video... I went over all of the connections that I soldered and double checked they were solid and in the right places which I think they are... here are some pics. Maybe I did something wrong? 

[6er won’t play games that 4 will]

I made sure to push the game cartridges in all the way. 

 

Most of them show a black screen except Berzerk which shows crooked lines and a few colors. 

 

What is strange is that when I first brought the 6er home the games that’s don't work now did then but only for like 10 minutes. 

 

[6er won’t play games that 4 will]

I recently found a 6er on Craigslist for $35 and swiped it up. I tried a few games on it and a majority of them worked while others didn’t. The ones that didn’t work on the 6er work just fine on my 4 switch... what’s up with that???