[sdiy] TR-8 partial teardown pics
Richie Burnett
rburnett at richieburnett.co.uk
Thu Jun 18 21:08:18 CEST 2015
Some pictures of Roland TR-8 internals for anyone who's interested: (15MByte
ZIP!)
http://www.richieburnett.co.uk/temp/tr8pics.zip
Some of the chips used...
AKM5357 24-bit stereo ADC
AKM4385 24-bit stereo DAC
NJM2115 Dual op-amp
NJM8080 Dual op-amp
NJM4556AD Headphone amp
Roland ESC2 Custom DSP (large area BGA package)
IS42S16160D 16M x 16bit Dynamic RAM
IS42S16800F 8M x 16bit Dynamic RAM
IS42S16400F 4M x 16bit Dynamic RAM
MX25L3206E 4MByte SPI Flash Mem
MB39A123 6-channel PWM DC-DC controller
-Richie,
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