Reply 19620 of 27521, by brostenen
- Rank
- l33t++
chrismeyer6 wrote on 2021-08-02, 09:53:brostenen wrote on 2021-08-02, 07:15:I have been playing around with the VIC-II part of my ATX-64. I had these artifacts that one normally do on a C64. However I was not able to get rid of them. I tried to adjust the onboard luma/stripe-fix, however it did not change much. I took notice, that with a S-Video cable plugged into the dedicated S-Video port and a Dell 2001FP that was turned off, removed all stripes and artifact's like it should. However that is not durable in the long run, and not really handy to have it hooked up to a monitor that I am not using. (Using DIN-to-Svideo and Retrotink for display)
I tried to attach a dedicated Lumafix64 between the motherboard and the VIC-II and that removed nearly all stripes when dialed in. But it still left that red/green tint effect on the picture quality, so I headed over to the LOOP64 website and asked what else I could do. I was recommended to remove the Composite jumper to disable Composite output, and that actually fixed my issue. Of course there are still a few artifacts here and there, however it is now less than what is found on a classic Breadbin+CRT setup. Crisp and clear video with perfect contrast and no colouring artifacts. There are only a faint level of vertical stripes now. Kind of what you see on a CRT if you look close. However the contrast is extremely strong, and one of the absolute best that I have ever seen on a C64. It rivals that of an emulator.
Fully happy with the result so far. Awesomme to have build yet another C64 from the ground and up.
That's great to hear. Have you been able to try any games on it yet?
Sadly not. There is no ROM chip in the machine as of now. In other words, no operating system. I have the eeprom chip, and I have the custom rom.bin file that I created (3 in 1 file and custom colours and boot-text). The only piece of software that I have had running, are the DeadTest cartridge. In regards to video signal quality, then it does not matter if it is C64-ROM or DeadTest cartridge. The signal is the same. 😀
I need to buy a TL866II-Plus programmer in order to write that eeprom. But I have to wait untill next month. I will buy this month though, if I can sell the AT-Case and/or the soundcards that I have put up for sale. But I doubt there are any buyers here in Denmark.
EDIT:
As the ATX-64 supports dual SID, in eighter seperate channels or combined into mono on both right and left. Then I am planning to have the ARMSID as the primary SID chip. I have an old-SID (the 9volt breadbin) that I will use as the secondary SID. The reason is that the ARMSID is as good or even better than original SID (can not hear difference + setup program for filthers), and my old version SID are a bit wonky. It is not dead nor defect in most games. However it sounds strange in a few games. So I deem it 95% working, and only 5% defect.
Don't eat stuff off a 15 year old never cleaned cpu cooler.
Those cakes make you sick....
My blog: http://to9xct.blogspot.dk
My YouTube: https://www.youtube.com/user/brostenen
001100 010010 011110 100001 101101 110011