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Author Topic: A3000 sync/video issue  (Read 2689 times)

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Offline smerf

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Re: A3000 sync/video issue
« on: October 01, 2013, 12:11:54 AM »
Quote from: jammarob;749111
So a quick update:

This weekend I pulled all of the socketed chips in the video section and inspected the chips and the sockets.

I replaced the 48-pin DIP sockets for Paula and Denise, as they were both corroded. The PLCC socket for Fat Agnus was also replaced as a precaution.

I am still seeing some weird sync issues. Does anyone know what this part is:



Vsync is 60Hz as it should be, but Hsync in 31KHz mode is measuring at 48KHz!


It looks like a potentiometer of some kind, and it is heavily corroded on my board. The sync jumps around if I try to adjust it.


Looking for the sync adjustment in the wrong place, the thing you are looking at I believe if I remember right is a fuse for the clock I think. The sync you want to adjust is in the back of the Amiga between the switch and the VGI connector, HOkay

smerf
I have no idea what your talking about, so here is a doggy with a small pancake on his head.

MorphOS is a MAC done a little better