X-men PCB not showing green

Xian Xi

Xian Xi

JammaNationX,
15 Year Member
Joined
Dec 1, 2005
Posts
27,762
No broken traces that I can see.

The green trace leads to a ?rectifier bridge? those long black things then it goes to a couple MB74LS07 chips all with good traces.

Where is the color generated on this board?
 
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MKL

MKL

Basara's Blade Keeper
20 Year Member
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Posts
3,686
Xian Xi said:
No broken traces that I can see.

The green trace leads to a ?rectifier bridge? those long black things then it goes to a couple MB74LS07 chips all with good traces.

Where is the color generated on this board?
Click to expand...

The manual contains schematics:

http://www.crazykong.com/manuals/Xmen.man.pdf

p.16, 19: Green < resistor array < LS07 < LS273 < SR16KSL4 (color RAM) < LS157 < 053251 (custom graphic chip)
 
Xian Xi

Xian Xi

JammaNationX,
15 Year Member
Joined
Dec 1, 2005
Posts
27,762
Just checked them and I have continuity to each input and out as listed. Only damage I can see is the top of one of the LS273s looks like something was running on it but just surface abrasion.
 
MKL

MKL

Basara's Blade Keeper
20 Year Member
Joined
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Posts
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You should use a logic probe and compare with red and blue since those are ok.
 
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