model 2b-crx bad ic60

PCB problems and fixes
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neocps1
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Joined: May 5th, 2012, 8:55 am
Location: France

model 2b-crx bad ic60

Post by neocps1 »

hello,

I have a problem with a spare model 2b-crx motherboard. Ic60 (texture ram) appears bad in test mode. Some textures appear pixelated
in game mode.

I changed the ram and problem stays the same. All signals on the chip's pins are looking good.

Any idea what could be wrong ?

thank you
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leonardoliveira
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Joined: August 30th, 2012, 5:53 am
Location: Brazil
Initials: leo

Re: model 2b-crx bad ic60

Post by leonardoliveira »

Time to go check for bad traces or broken joints, sir. ;)

Very likely the original RAM was not bad and the problem is a severed connection instead.
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