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I booted with the option key held down and all the additional squares were green. Additionally, I was able to boot the Star Raiders cartridge and play as if nothing was wrong. Sent from my SM-N950U using Tapatalk

As a student, at my university I have access to some fairly nice soldering/desoldering equipment for free, so I probably won't need to buy anything fancy at the moment. That Hakko seems really nice, but I suspect it will be a few years before I can afford to spend that much on a tool. I will definitely keep the ZD-915 in mind though, in case I want to work on projects over the summer--£55 is definitely much more in my price range.

Thanks for all the advice!

Thanks for offering to mail me an MMU! The 800 (non-XL) doesn't have the right MMU, correct? They don't seem to be that expensive from Best Electronics, so I will probably just buy one. If it doesn't end up fixing the problem, it definitely won't hurt to have a spare as replacement parts get harder to find. When soldering, what temperature would you recommend to prevent burned traces? Thank you for your help

I recently managed to snag an Atari 8-Bit lot at an estate sale. I mostly bought it for the accessories it came with (since I already have an 800), but it also came with a 130XE. However, when I turn it on, it boots to the self-test. I pulled it apart and noticed the 320k upgrade had been done to it (according to a sharpie label on the RF shield, it was done in July, 1987). How do I interpret the memory test? Is there any set of steps I should take to try and fix this? I've attached pictures of the mod and the memory test screen (the white box one being tested in the photo passed).

If you don't have a TV with an analog tuner you could pick up a VCR from Goodwill for a few dollars or from a yard sale. They are dirt cheap and can output a composite signal. If you get it from Goodwill you could donate it back when you are done with it, if you don't want the clutter. Sent from my Nexus 6P using Tapatalk

Atari's CEO has said that the AtariBox is PC based hardware. https://www.cnet.com/news/ataris-rumored-new-game-console-is-real-and-pc-based/ Sent from my Nexus 6P using Tapatalk

Isopropyl alcohol is the common name, IUPAC calls it isopropanol, so yep, they're the same [emoji1] . Sent from my Nexus 6P using Tapatalk

I know about PC emulators. I googled the Atari Apple II emulator, it looks cool, but I don't have enough RAM. Oh well Sent from my Nexus 6P using Tapatalk

Apple II emulation? How does that work? Sent from my Nexus 6P using Tapatalk

NTSC 800: No. 388606 472

I'm trying to use a Tandy Single Sided disk. Is there any way to check the 3086 and the U1, or should I just try replacing them?

No luck. I tried this, and still got a 138 error. I tried to run Disk Diagnostics, but it said DISK DRIVE WILL NOT RESPOND.

No, i get a 138 Sent from my BLU R1 HD using Tapatalk

I am! What should i do? Sent from my BLU R1 HD using Tapatalk