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Re: The strange case of the Commodore 64 colour bands.
Posted: 29 Apr 2022 11:32
by rubber_jonnie
Just a thought, would it be feasible to feed the signal from a function generator in place of the crystal, just to see if a stable signal makes the problem go away?
Re: The strange case of the Commodore 64 colour bands.
Posted: 29 Apr 2022 11:39
by stephen_usher
Unfortunately I don't have a signal generator.
Re: The strange case of the Commodore 64 colour bands.
Posted: 29 Apr 2022 13:17
by rubber_jonnie
stephen_usher wrote: 29 Apr 2022 11:39
Unfortunately I don't have a signal generator.
That won't fly then.....
Re: The strange case of the Commodore 64 colour bands.
Posted: 29 Apr 2022 20:26
by stephen_usher
My goodness that was quick. The Mouser package has already reached Stanstead Airport from Texus and I only ordered it about 24 hours ago.
Re: The strange case of the Commodore 64 colour bands.
Posted: 29 Apr 2022 22:15
by rubber_jonnie
stephen_usher wrote: 29 Apr 2022 20:26
My goodness that was quick. The Mouser package has already reached Stanstead Airport from Texus and I only ordered it about 24 hours ago.
Crikey, that was quite rapid!!
Re: The strange case of the Commodore 64 colour bands.
Posted: 01 May 2022 11:16
by stephen_usher
Now that I've adjusted the guns on my Ferguson TX telly it's showing the same degree of banding as on the LCD, just a bit more fuzzily.
Re: The strange case of the Commodore 64 colour bands.
Posted: 03 May 2022 13:41
by stephen_usher
I haz crystal!
Re: The strange case of the Commodore 64 colour bands.
Posted: 03 May 2022 13:49
by rubber_jonnie
Re: The strange case of the Commodore 64 colour bands.
Posted: 03 May 2022 18:11
by stephen_usher
With the new crystal it's not perfect but it's hugely better.
Re: The strange case of the Commodore 64 colour bands.
Posted: 03 May 2022 18:22
by stephen_usher
The next thing will be getting a replacement for the modulator as that's the only other place that noise can be introduced.