Corrupt Display

OldFoo · Post by **OldFoo** » Sat Feb 28, 2009 5:26 pm

I booted up my Naomi 2 for the first time to get hit by a double dose of trouble.

First thing being the checkered screen. You can't see it in the picture, but it is also flashing, making me think its a video syncing issue. The picture is taken from a widescreen lcd monitor, but I was also having this problem on my standard CRT monitor that I have set aside for the Naomi 2. I didn't see any swollen caps, bad traces, or excess dust anywhere on the motherboard or cart.

You may have also noticed the error 01 in the picture.

So anyways, I turn up with all these problems on screen whether or not I have the cart. Could these issues have a common source lurking somewhere behind them?

OldFoo · Post by **OldFoo** » Mon Mar 02, 2009 9:04 pm

Checker flag issue. Ken told me it has to do with BGA joints going wrong. Sounds like your dustbin has a new friend :s

OldFoo · Post by **OldFoo** » Mon Mar 02, 2009 10:19 pm

I bought this Naomi 2 on ebay without anything in the description mentioning these problems. Since it's not a simple fix I just emailed the seller and hopefully I can get my money back.

After carefully examining the motherboard I didn't see any physical damage to any traces, capacitors, etc. Well I hope this isn't a common fate amongst Naomi 2's. I'd still like to own a working one for my cab.

OldFoo · Post by **OldFoo** » Wed Mar 04, 2009 4:56 pm

Lite wrote: Well I hope this isn't a common fate amongst Naomi 2's.

It is sadly, I've seen few units doing this

OldFoo · Post by **OldFoo** » Wed Mar 04, 2009 7:56 pm

Very common on Naomi 2, Naomi 1 carts should still function, but Naomi 2 ones won't. Open BGA on the second GPU

OldFoo · Post by **OldFoo** » Wed Mar 04, 2009 11:24 pm

I've never had a problem with BGA's - but would jump on the chance to try to fix it if I did.. What about using a hot-air station on the chip (or under unless it has other components there) to reflow the balls?

OldFoo · Post by **OldFoo** » Thu Mar 05, 2009 3:59 pm

Heck, that would be a candidate for trying a cheap heat gun for repairs.

There are videos on YouTube on how to do that.

It all depends on how much money you have in that system and if you think you can afford to throw the money away if it doesn't work.

RJ

OldFoo · Post by **OldFoo** » Thu Mar 05, 2009 8:19 pm

would you believe my insane brother repairs apple notebook thingy's using a blowtorch and a g clamp

OldFoo · Post by **OldFoo** » Sat Mar 07, 2009 1:43 pm

grantspain wrote:would you believe my insane brother repairs apple notebook thingy's using a blowtorch and a g clamp

If it's a relation of yours Grant, I'd believe anything :smt006

Is he your dad too? :smt008

OldFoo · Post by **OldFoo** » Sun Mar 08, 2009 7:15 pm

dj_johnnyg wrote:
grantspain wrote:would you believe my insane brother repairs apple notebook thingy's using a blowtorch and a g clamp

If it's a relation of yours Grant, I'd believe anything :smt006

Is he your dad too? :smt008

Grant's from Arkansas?