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donjn

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Posts posted by donjn

  1. Posted

    This cable is "S-Video, Composite, AV" which means the 4 plugs are:

    - Svideo Chroma

    - Svideo Luma

    - Composite Video

    - Mono Audio

     

    If you're plugging 2 of those into your L/R audio in, one of them will be some 60hz video signal you're hearing. you'll need an audio splitter something like this to plug into the single audio lead:

     

    https://www.ebay.com/itm/312251786406

     

    "It also includes left and right audio connectors."

     

    I'm confused...

  4. Posted

    I got a new Atari 800XL and ordered some cables for it to hook up to my CRT.
    Problem is, the right red RCA causes massive feedback sounds when plugged in. I have already eliminated it being anything other than the cable or the Atari 800XL itself. I've checked for ground loops, different speakers, etc..
    I'm ordering a new cable but just in case the issue is with the Atari itself I have a question:
    How do I take the left white RCA cable, attach it to a 3.5mm computer speaker cable BUT have it play in both speakers MONO? I don't care about stereo I just want both speakers to make noise. I have tried many combinations with cables and it always only comes out of one speaker.
    Thanks!

     

  8. Posted

    Generally, there is a typical color shift that happens as systems warm up over time. I think the extent of color shift is being exacerbated by the monitor you’re using, but having said that, it could also be that there’s a capacitor inside that is getting marginal. Usually warm up time for some degree of color shifting is just a couple minutes.

    Are you saying this is normal or is this possibly something that could get worse?

  10. Posted

    Just purchased an Atari 800XL with the Super Video 2.1 mod for s-video. Now, my s-video cable is on its way and should arrive today or tomorrow, so I have been playing around with composite.

     

    When the Atari has not been on for a while, off of a cold start it has a purple color to it. here is the transition:

     

    F4bvCdc.jpg

    • I tested this with two different cables all giving the same result
    • Pretty sure it is not the monitor as it does not happen with anything else.
    • Once the color is correct it does not turn back to purple at all and stays blue.
    • Need to try new power supply to see if that is the cause
    • This only happens if the unit has been off for a while, more than 15 minutes.

    So with this, I have some questions.

     

    I have a 30 day window to return this item

    • Would you keep or return an Atari 800XL that does this?
    • What if with s-video mode this does not happen?
    • Is this a sign that something serious is going to happen to this unit down the line?

    Thanks!

     

     

     

     

  11. Posted

    Another thing to add, my NES Classic as pictured runs with almost no lag at all. And I was able to mod my NES Classic and play SNES and Genesis games through Retoarch (an emulator) with no lag either.

     

    So if SNES games run great through NES Classic using an emulator, wouldn't a direct Atari 800XL straight into s-video have minimal lag as well? Or does the fact that NES Classic uses HDMI make a big difference?

     

    I guess I will know in a couple days.

  12. Posted

    While HDMI itself won't introduce much lag, quite often the image processing carried out by the TV does, and that can be applied to any input - analogue or digital. Things like dynamic contrast ratio (ugh) and similar effects need to analyse an entire frame, then adjust the TV accordingly before actually displaying the frame.

     

    Check if the TV has a "gaming" mode in amongst the colour and contrast settings - many do, and it removes steps from the processing, resulting in certain features being disabled but reducing the lag to the lowest possible using that display.

    This small LCD TV has very few post processing options. Just things like sharpness, noise reduction and dynamic contrast. I assume set all of these to zero or off?

  14. Posted

    I recently purchased an Atari 800XL with an s-video mod and an UnoCart to go with it.

     

    I also recently stumbled upon this beauty below. A Magnavox, 15" 4:3 ratio TV (it actually has HDMI too which is rare for 4:3 ratio TVs).

     

    I am worried as bit about the lag which I am very sensitive to. The easiest game to test lag for me is firing up H.E.R.O . and moving back and forth rapidly. Altirra emulation n Windows 10 on my gaming machine is quite good and lag is almost not noticeable.

     

    So my question is this, which would have worse lag:

     

    1. Atari 800XL emulation on the Altirra on Windows 10 on a very fast computer.

    2. Real Atari 800XL hardware hooked up via s-video to this tv/monitor?

     

    Here is the Magnavox tv:

     

    RLTF6HD.jpg

     

     

  17. Posted · Edited by donjn

    I found this awesome TV. It is a Maganvox 15" LCD TV 4:3 ratio with HDMI, Composite and S-video. Picture below.

     

    Now, I just ordered an Atari 800XL so I know that I may or may not have any luck regarding getting it to work with an s-video cable.

     

    My question is this. For arguments sake, lets say that my Atari does not work with s-video. It is revision B but the seller replaced the chip with revision C. I assume this has no effect on that.

     

    Would all I need to purchase be a DIN to RCA Color Composite Video A/V Monitor Cable for Atari 800/XL/XE? I messaged the Ebay user and he suggested I also get an Male Mini DIN S-Video Monitor Adapter to Male & Female RCA for Atari 800/XL/XE because my s-video pictured below has 4 pins.

     

    Is the only reason he is saying that because he assumes my Atari 800XL can handle s-video?

     

    Or would running a composite cable to an s-video cable into my TV improve the signal somehow?

     

     

    cKrjoTU.jpg

    • Like 1

  19. Posted

    Just purchased the UNoCart and while I wait for it to arrive I wanted to work on my SD card.

     

    Does the UnoCart support zip files? If not, I open some of these zip files and see many choices.

     

    For example, I open up a zip file and see the following:

     

    • Bounty Bob Strikes Back! (v1).atr
    • Bounty Bob Strikes Back! (v2).atr
    • Bounty Bob Strikes Back! (v3).atr
    • Bounty Bob Strikes Back! (v4).atr
    • Bounty Bob Strikes Back! (v5).atr
    • Bounty Bob Strikes Back!.dcm
    • Bounty Bob Strikes Back!.rom

     

    Which file do I add to my collection? The rom file? is that the most up to date? I assume the (v1, v2) are versions?

     

    Thanks!

  20. Posted

    Does anyone have an old, non-working Atari 800XL that would like to get paid by me to turn it into a working USB keyboard in Windows that works with the Altirra emulator and the controller ports would work too? Think of this like a Commodore 64 "Keyrah". I have seen it done before but would love to pay someone to do it for me.

  21. Posted

    I am on the west coast, Los Angeles.

     

    I want to buy an Atari 800XL or 130XE.

     

    I need to make sure it will work with an s-video cable. In Atari 800XL versions produced before August of 1984, this cable will not work. This can also be checked with the version of Atari BASIC (This would be listed as Rev C but not all Rev C versions support S-Video)

     

    Thanks!

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