Denial

Okay - sounds like it may be the Vic chip and the BASIC ROM in that case, but honestly, it could be a lot of things. You really need a known working machine into which you can try the suspect ICs.

Since you can hear sound with the cartridge, switch it on and type: poke 36876, 220 : poke 36878,15 <Press return> If you can here a sound then the KERNEL ROM and BASIC are working otherwise they are good candidates to swap. But most likely it's the Vic chip since you get no display running the game...

There is also a software only version of SAM. Download VicSAM7-sfx.zip

http://sleepingelephant.com/ipw-web/bul ... 6&start=15

[...] I'm still getting a little bit of fuzz though, [...] You should check out the plethora of threads regarding a S-Video mod on the VIC-20 here in Denial. :wink: I will do that, maybe a future mini project for me. The picture quality is acceptable but there's room for improvement. I actually pre...

I've got Bewitched to work! One important thing I didn't mention was I had a Simplex Data 16k memory pack plugged in, it hadn't occurred to me it could affect a cassette drive motor control! Removing the memory expansion allowed the game to load fully. I've now read that having too much ram can sto...

Welcome to the forum and the world of the Vic. I'd start by cleaning the tape heads and moving the cassette away from the TV if that doesn't work it could be the tape itself or even your Vic. Unless you have access to other hardware it's difficult to determine the issue. To enjoy the Vic-20 without ...

I find this very interesting. Thanks for sharing!

p.s. looking forward to you using it to implement Sabre-Wolf on the 35k Vic

tlr wrote: ↑Sat Feb 04, 2023 5:19 am This is an example of soldering a 0.5 pitch TSOP-style part using fairly normal tools: SMT Hand soldering of 38 pin TSSOP with 0.5mm pitch

They make it look so easy!

https://www.youtube.com/watch?v=Nq5ngauITsw

These are by far the best soldering videos I've seen (professionally produced). This is lesson 9 but all 9 are worth watching.

If your talking about the general public I'd say it would have to be Space Invaders (Avenger is coloured) or perhaps Donkey Kong?

Miklós wrote: ↑Sat Dec 11, 2021 5:27 pm Hi all.

DEC 13.
ALL GAME:
-LOAD AND RUN
-PAL CENTER

Many thanks for this bootloader menu.

Nice vibes - although I would have preferred Christmas 82, being more in the Vic's heyday with it being discontinued in Jan 1985.

He asked for someone to point him to a working version even though the versions he has already "work" if loaded in the necessary convoluted manner. I provided a solution that IMO is much more suitable to the intent behind the question. The metaphor of "expense" seems an ill fit h...

Mike wrote: ↑Mon Dec 19, 2022 10:14 pm

beamrider wrote:or far far easier, load the MegaCart ROM into VICE and just play it from the menu

... which does, however, not add any understanding into the actual issue at hand.

Perhaps some people don't care and just want to play the game.

Not sure what version of VICE you are using, but in 3.2 it's File --> Attach Cartridge Image --> Megacart Image Browse to ROM in GTK it's similar but choose MegaCart as cartridge type and change filter to all files. Preferences -> settings -> Cartridges -> Megacart -> Browse to ROM Having done that,...