Edirol UA-5 dissection photos

---

The Edirol UA-5 (distributed by Roland) is a 2-channel 24-bit/96 kHz USB audio interface with a good collection of analog and digital inputs and outputs. I use it for recording concerts and as a quality sound card. Works like a charm on Linux and Win2k (Linux users: here's some more information on UA-5 support on Linux!). The only drawback so far has been that it cannot be used without modification as a stand-alone A/D box (from one of the analog inputs to it's S/P DIF digital output), so that one could use it with, for example, the Archos Jukebox Recorders instead of a laptop. As usual, I wanted to take a look at what the box had eaten, so I opened it up, and took some photos of the internals on the way so that I wouldn't need to open it up again if I wanted to re-check something. Here are the photos in case you're interested, and some information on the components I found. If you identify more chips (or figure a way to do a non-destructive modification to do standalone A/D), please share your information with me. NEWS FLASH! Photos of an UA-5 with the standalone AD modification have arrived. I have also successfully modified my own unit, with a switch to toggle the modification on and off!

View: [1] [3] [5] [10] [20] photos per page

tiny	small	medium	large	huge	orig
115x86 94 K/page	288x216 259 K/page	576x432 753 K/page	1152x864 2 M/page	2048x1536 7 M/page	2048x1536 16 M/page
1-10	1-10	1-10	1-10	1-10	1-10
11-20	11-20	11-20	11-20	11-20	11-20
21-27	21-27	21-27	21-27	21-27	21-27

Total storage: 74 Mbytes

Data sheets for active components found inside the device: Texas Instruments TUSB3200    USB Streaming Controller AKM AK4524    24bit 96kHz Audio Codec (two-channel AD/DA) AKM AK4324    24bit 96kHz two-channel DAC (for monitoring?) Crystal CS8420    Digital Audio Sample Rate Converter Fairchild 74VHCT245A    Octal Buffer/Line Driver with 3-STATE Outputs Fairchild 74VHCT74A    Dual D-Type Flip-Flop with Preset and Clear Fairchild MM74HCU04    Hex Inverter Fairchild 74VHCT374A    Octal D-Type Flip-Flop with 3-STATE Outputs

(Back to photo archive index)