Soundguru,
thanks for your response, but where should there be a battery inside ?
Have you got any further infos about this battery ?
I completely dismanteled the unit, to take a look to the memory and the powersupply, but there is no battery inside.
The memory used is a flash e-prom (4pcs type Am29F040B). That memory doesn´t need a backup battery as far as I learned.
All connectors had been glued, so a bad cable connection can´t be the problem.
In the mean time I did some further tests.
- DDX saves new or edited snapshots in RAM. You´re able to work with it, and switch between them; as long as the DDX has power. After a powercycle, everything new and edited is gone.
- the snapshots (and other files) can be stored within the pc-software, and even reloaded, but anyway, after a powercycle you´re back to where you started.
Normally, DDX is initializing the faders during startup; mine doesn´t. (It did once, after I reassemled it after my inspection)
This could be a hint to some powersupply trouble, I´d think.
I read some things in another forum of faulty condensers withing the powersupply. These condensors caused a lock during startup. My DDX doesn´t really have this behavior, but sometimes startup lasts very long for a DDX (seconds, not minutes).
This other posting wrote about blown up condensers; mine look fine, but I think, I´ll change them anyway (1000uF, 25V, about 30 pcs, panasonic FC type prefered as I read)
Another posting in any forum tells of bad quality IC-sockets. The author exchanged the standard low quality sockets against high end types, and tells of a reliable console for years. Could be an opinion.
There are several servicecenters, which might be able to repair this stuff, but this console is about 10 years old, and worth something arround 300€ (working). Any repair will be 200€ up. Even if I love this thing, and there´s no real alternative (price vs. functionality); I don´t want to spend this amount of money. And I´m not shure, they still have spare parts, and even if they have; these parts must be well deposited
So, if the manufacturer doesn´t really support techs during repair, techs should support each other, using the web.
Jens
Maybe the DDX is growing old, and is sick of the alzheimer´s desease ...