Print Page - my first bend, so i could do with a little info!

Title: my first bend, so i could do with a little info!
Post by: sithedrummer on April 02, 2009, 06:49:27 PM

i ma currently doing my first bend on a pss 780. plenty of success with the pcm drum chip. some really nice sounds. however i cant seem to get the 2 fm synthesis chips to do anything but crash. some nice noises during the crash and sometime when i turn it back on, but nothing useable. i can only obtain data on the toshiba chip(static memory) but not the yamaha chip(which i presume is the meat and veg of the matter). having had luck with the drums, i don't want to fry it. can anyone tell me the pinout for the chip? or any other advice would be appreciated. cheers.

Title: Re: my first bend, so i could do with a little info!
Post by: Gordonjcp on April 02, 2009, 09:27:40 PM

I can't remember which FM chip it has, is it the YM2413 or YM3812?

Title: Re: my first bend, so i could do with a little info!
Post by: sithedrummer on April 07, 2009, 05:37:50 PM

hi. cheers for the reply. the yamaha chip says 8924pd
XG503B0-132

these are the only 2 serial numbers on it!

thanks again.

Title: Re: my first bend, so i could do with a little info!
Post by: nochtanseenspecht on April 07, 2009, 10:05:46 PM

hmm.. i remember i didn't found much either.. or was it the 790... :-\

Title: Re: my first bend, so i could do with a little info!
Post by: Gordonjcp on April 07, 2009, 11:20:43 PM

It might not be labelled Yamaha. Chances are it will start "YM" something.

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Circuitbenders Forum => Circuitbending discussion => Topic started by: sithedrummer on April 02, 2009, 06:49:27 PM