A1200 rev.2B motherboard: resistor in ALICE pin
I noticed this this today:
http://i125.photobucket.com/albums/p55/restqp/363.jpg it caused some slight trouble when installing the DCE flickermagic... I have another 2B motherboard here, but it lacks this resistor... does this mean that the pictured motherboard with the resistor has the famous "timing fixes" :confused:confused:confused |
that resistor is hack for ntsc motherboards to make boot default in pal mode instead ntsc
that hack doesn't produce timing issues |
what? really? so I have an NTSC mobo?
bah will it affect me in any way? |
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anyways Im not sure about that hack is 100% bug-free it can cause some problems with scandoublers or with your particular DCE flickermagic... bye |
OK, did some tests...
removed the resistor and booted. Scout gave me a PAL Agnus. changed screenmode to NTSC, and again Scout gave me a PAL Agnus ... using ClassicWB ADVSP btw... so??? if it was an NTSC motherboard, removing the resistor should give me an Agnus NTSC, right? |
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that hack was invented by some resellers to sell 1200' ntsc motherboards on PAL countries btw, check what kind of video you got from composite video output bye |
hmmmm
I checked the early startup menu too, PAL is pre-selected... will try the VHS out in a while... |
just checked, it displays on my tv and flickers the same as my cd32/pal ...
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which problem exactly you have with that motherboard with the resistor? strong flicker? |
not really a problem, as I wrote before in caused trouble when installing the DCE flickermagic... I removed it now completelly, seems OK
will try connecting VHS to a tv-tuner and see what it gets recognised for (I have a SAA7135 based one that supports ALL formats) |
nice, I just checked with trusty FLY2000TV... 24.49 FPS VHS input...
I still wonder why the resistor was there in the first place... maybe I need to let it do intensive gfx stuff? an AGA demo perhaps? |
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