The two things to watch out for in doing the upgrade are:

• Ensuring you have no static charge on you to fry the chips - you can do this by working close to a metal radiator (or other metal cased object that will be connected to the earth point of your house) and touching it before handling the chips, which will remove the static charge. Of course if you know an electronics guy, they will have wrist bands for doing the same job.
  
• That when you insert the new chips that the legs are aligned with the sockets - it is quite easy to splay a leg outwards (easy to spot) or inwards under the chip (which is not so easy to spot)

Oh, and you'll also need to get the OS from your nearest Yamaha dealer. Policy regarding the OS appears to vary from country to country. In the UK you pay a charge of around £80 GBP, which is refunded when you return the old OS.

Regarding the EX7 you have seen advertised, you post is a little scant on details, as is the advert I just spotted as well. I personally would approach with caution until I established from the seller precislely what had happened. It may be just a case of putting new chips in, but there is always a risk that something else was damaged in the process.

I suppose it all depends how cheap is cheap, and what confidence you have in fixing it. If it was in the UK then for the seller's asking price of £160 GPB, I would probably take the chance myself, especially as electronics was once my day gig.

HTH

[ May 31, 2004: Message edited by: Derek Cook ]

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When I first got my EX5 and was downloading patches and samples off the net and all, I learned that voices and such can come out looking and sound like Klingon. At first, I too thought I 'roasted something' on my EX.
But through reboots and/or just reloads, these problems go away, and the EX is pretty sturdy to not get 'roasted' IMHO.

quote:

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Your EX7 will be a beauty in no time!

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And the EX7 is REALLY beautiful, believe me!