MATRIXSYNTH: The Yamaha TX81ZT - DIY Hardware TX81Z

Tuesday, February 28, 2012

The Yamaha TX81ZT - DIY Hardware TX81Z

via TX81ZT

"The Second Life Of A Legendary Synth

As interest in such kind of devices is increasing we have developed the first in the world DIY version of TX81Z with a much smaller PCB than that of the original device.

In order to preserve the “spirit of the past” and to simplify the assembling of our version, besides the original NOS HD63B03XP CPU, YM2414 OPZ and YM3012 DAC we have used up-to-date high quality DIP components and a bit modified the original schematics to improve sound characteristics and decrease the number of components used. Power supply is carried out from any 9-12V adapter; pinout switch and LCD connectors are completely compatible with the prototype.

Audio and MIDI jacks used in the device are produced by Jalco company of Japan; capacitors Nissei, Nichicon and Rubycon. Switches on switch board, which is included along with a free of charge 2*16 LCD are produced by Bourns. All IC sockets are Nextron Gold.

As program ROM we used rewritable EEPROM W27C512 with a modified but compatible with all TX81Z version firmware. Our version of TX81ZT has 100% the same functions as the prototype, but has better sound characteristics, smaller size and power supply from any 9-12V power supply available along with an option of connecting a MIDI USB module in future. Accessory set includes all necessary wire straps.

Some time later we are planning to produce an enclosure for our version of TX81ZT. We are also working on an up-to-date version of FB-01, which will be done soon, and some other famous devices in our vision."

See TX81ZT for more.

1 comment:

  1. So you guys have the datasheet of the YM1424. Of course. So why isn't it available on the web? I wonder why? Or is there an equivalent.



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