Pink graphics on AES

Xian Xi

Xian Xi

JammaNationX,
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Just got a super cheap "broken" AES, I had to replace the voltage regulator since it was broken but after I did it powered up and the graphics are clear BUT are pink, I did replace the 3.57mhz crystal and still the same. I did notice that it is missing the cap by the LSPC2? chip, what value cap is that?
 
dannywhac

dannywhac

Cheng's Errand Boy
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Mar 13, 2005
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The missing cap is the same as the majority of the other similar ones on the board: 104's, 100000pF = 10nF I think...Hope this helps
 
ttooddddyy

ttooddddyy

PNG FTW,
Joined
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Posts
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dannywhac said:
The missing cap is the same as the majority of the other similar ones on the board: 104's, 100000pF = 10nF I think...Hope this helps
Click to expand...

I go along with that, but its not likely to be the problem imho.

It is more likely something to do with the rgb DAC resistance ladder arrays, there is an interesting thread on it here. Thanks to MKL and others who contrbuted.

http://www.neo-geo.com/forums/showthread.php?t=78595
 
MKL

MKL

Basara's Blade Keeper
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Xian Xi said:
Just got a super cheap "broken" AES, I had to replace the voltage regulator since it was broken
Click to expand...

You replaced the 2576-5?
 
MKL

MKL

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There is a 2576-5 on those AES that use the 10v (or 9, 11, 12...) power supply. The regulator converts this voltage into 5v. It's more powerful than a 7805 and requires a few external components. It's the only VR I know of on AES systems.
 
ttooddddyy

ttooddddyy

PNG FTW,
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Thanks for clearing that voltage regulator question up MKL.

A pink picture ? is that pink or violet (no green from the RGB) only red and blue.

Is there any green at all ??
 
M

Magnaflux

Onigami Isle Castaway
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Slap some Hello Kitty stickers on it and put it up on ebay.
 
Xian Xi

Xian Xi

JammaNationX,
15 Year Member
Joined
Dec 1, 2005
Posts
27,750
ttooddddyy said:
Thanks for clearing that voltage regulator question up MKL.

A pink picture ? is that pink or violet (no green from the RGB) only red and blue.

Is there any green at all ??
Click to expand...

Good point dude. I gotta check when I get home and maybe replace some resistors.
 
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