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Man those suckers are going to be hard to work on, surface mount chips are no joke. I'd send it to www.IRepairSega.com and be done with it.
Hi, thanks for your answer, i usually test all IC before change it, but not is easy test the ram...
Also i found chip ram on ebay, the price not is very expensive, 3usd for each, i think that i will buy 6 new ram
Yes, the problem were two faulty ram, now is ok!Hello, how did you go with the RAM fix?
Oh, good to know, will try it next time!You can remove SMT very easily using a product called ChipQuik
Hi, ic test not check ram in pcb videoDid you have any RAM errors in the IC tests
exactly!or just bad 3D GFX ?
I talked with sega assistence in my country (italy), they say me that 99% of bad 3dgfx are caused by faulty ram (poor quality)...If you can provide any other tips on your testing procedure etc that would be great also.