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Re: The strange case of the Commodore 64 colour bands.

Posted: 07 Apr 2022 15:34
by stephen_usher
I could do it sooner rather than later as I made sure that I got one build with turned pins, which are less likely to damage the single-wipe VIC-II socket on the motherboard. I can at least do a quick test... unless it doesn't get a good connection in the single-wipe socket on the motherboard. :-)

Re: The strange case of the Commodore 64 colour bands.

Posted: 07 Apr 2022 15:40
by rubber_jonnie
stephen_usher wrote: 07 Apr 2022 15:34 I could do it sooner rather than later as I made sure that I got one build with turned pins, which are less likely to damage the single-wipe VIC-II socket on the motherboard. I can at least do a quick test... unless it doesn't get a good connection in the single-wipe socket on the motherboard. :-)
I hate single wipe sockets with a passion. Good luck.

Re: The strange case of the Commodore 64 colour bands.

Posted: 07 Apr 2022 15:56
by stephen_usher
Yeah, I already thought that I'd broken the VIC-II once due to one of the pins not quite being straight enough!

Re: The strange case of the Commodore 64 colour bands.

Posted: 07 Apr 2022 15:59
by rubber_jonnie
stephen_usher wrote: 07 Apr 2022 15:56 Yeah, I already thought that I'd broken the VIC-II once due to one of the pins not quite being straight enough!
I've not run into that yet with the VIC-20, but pretty sure they were a problem in the 600XL.

Re: The strange case of the Commodore 64 colour bands.

Posted: 07 Apr 2022 18:04
by stephen_usher
I've just tried the LumaFix64... The adjustments obviously go the "wrong way" and they all just make things worse.

Re: The strange case of the Commodore 64 colour bands.

Posted: 07 Apr 2022 19:19
by stephen_usher
Thankfully the LumaFix64 hasn't damaged the socket and the VIC-II still works in it.

The one thing the LumaFix64 did was to soften the output. It lost quite a bit of horizontal definition.

So, now I have to wait for the capacitors to arrive, which will be after my Easter break now.

Re: The strange case of the Commodore 64 colour bands.

Posted: 07 Apr 2022 19:20
by mrbombermillzy
Darn.

Sorry to hear that.

You must be miffed. :(

Re: The strange case of the Commodore 64 colour bands.

Posted: 07 Apr 2022 19:29
by stephen_usher
Only miffed by RS Components' "next day delivery", especially as it took 3 days before it even left their EU facility let alone make its way across the Channel.

From what I was seeing on the oscilloscope and from the chroma signal on its own I was pretty sure that it wasn't a luma issue and this has merely confirmed it.

Re: The strange case of the Commodore 64 colour bands.

Posted: 08 Apr 2022 12:56
by stephen_usher
The capacitors seem to be in the UK at last.

Re: The strange case of the Commodore 64 colour bands.

Posted: 08 Apr 2022 12:59
by rubber_jonnie
stephen_usher wrote: 08 Apr 2022 12:56 The capacitors seem to be in the UK at last.
Blimey, they've taken an age!!

:pullhair: