Picasso IV..defect

[Damion]

Agreed.... same issue here when I got my PIV, no output or messed output, re-seating the little guys fixed it.

[Damion]

Glad to hear you got it going! :pint:

My problem now is that games tend to lag...it's especially apparent in the Pinball series by Digital Illusions

Is there some setting on the PIV I haven't tweaked correctly?

This seems to be a problem with the PIV, at least my revision of the card (1.2N) with all the "latest" chips is also affected.

All you can do is tweak the frequencies to get it close as possible. If you get it looking good with a pinball game, most other things will look perfect.

Some info I posted in an earlier thread about this:

PAL line frequency (in the TNG tool) needs to be as close to 31.5552 as possible.

NTSC hsync needs to be at or slightly above 31.4857.

If someone here has an earlier revision PIV which does scroll perfectly, I would be interested in seeing a screenshot from the TNG tool, showing the PAL/NTSC settings.

[Damion]

Hey AMIGAZ,

My suggestion - jot down the frequencies when the scrolling is smooth. Go into the PIV boot menu and set the scanrate to double (100/120Hz). Then try to fine tune the line frequency until it's double where it's at now at the working 50/60Hz settings, and you should be OK. (So, if PAL vfreq is around 50.4Hz now, it needs to be at 100.8Hz for a flicker-less picture on your CRT.)

Basically, the default PIV settings are close, but not an exact double/multiple of what the Amiga outputs - so the Amiga and PIV are not synchronized, hence the annoying screen jerking (and artifacts on static screens).