Wednesday 16 January 2019

Getting the data off a dead Buffalo Linkstation.....

Perhaps unsurprisingly given my "recovering a Buffalo Linkstation" post from September last year, come the start of January I have a dead Buffalo Linkstation HS-DH750GL as it died again.

After the September experience I had instigated fairly regular "Sync Toy" runs to back up the Linkstation HS-DH750GL to a WD MyCloud and a Synology NAS DS216se.

The way I worked, the Linkstation HS-DH750GL was my "working" store so when it broke I was only a few days of data lost but it was unfortunate.

Investigation suggested that the drive was OK and when I put it in a USB caddy and connected it to my Raspberry Pi, to my immense surprise the data partition "mounted" and all my files were there.

The drive isn't easily visible on a Windows machine as it has a Linux format and partition scheme.

I had a spare 1TB drive (the WD Blue that my PC seemed to not like) and so bought another Synology NAS case (a DS115j this time)  and fitted it to that.

After an hour of Synology initiation "stuff" it was all up and running with an empty 1TB drive. Unlike the old WD Blue 650GB there are no S.M.A.R.T. error reports on the 1GB drive so it seems OK to use.

The Synology NAS drive was seen by the Raspberry Pi as a server and by copy and paste I set the Raspberry Pi to clone the ex Linkstation 750GB drive (about 600GB of stuff) to the Synology NAS.

It isn't fast (about 48 hours) but is doing it..

Once I've got the data all on the new Synology, I'll have another go with the Linkstation HS-DH750GL but I think the PSU might be on the way out. There is a bit of a "capacitor" smell to it.

Monday 14 January 2019

Repairing a Behringer DSP9024

I have a Behringer DSP9024.

For those unfamiliar with the unit, it can be considered a "poor mans Optimod" as it does split band audio dynamic range reduction.

While I wouldn't consider it suitable for use before an A.M. transmitter, for taming audio before a web stream it is ideal, and that's what I use mine for.

Unfortunately it broke with what I now know is a common failure mode (all the lights on the front panel flash and it "hangs" half way through booting).

A google suggested that the PSU capacitor C65 which seems to do a logic rail is the common fault. It is 16V/2200uF and mine looked like it might have been previously replaced.

I replaced it with a recommended 25v/3300uF and to my great relief the Behringer DSP9024 is mended.

Even now, a second hand replacement would cost £80 on eBay and there is nothing obvious for less than 4 figures that would do a similar job. Behringer make a 2 band unit but I suspect the DSP9024 does a better job (if less easy to set up).

The perfect unit would be a combination of the Behringer DSP9024 and a Shoutcast server.

Orban make something like that but it costs about £5k.

Anyway, the Behringer DSP9024 is mended for now.

Good luck if yours breaks.