Hi,

My legato is shorting across from the V+ channel across to the V- , Im hoping someone can point me in the right direction for likely component(s) at fault or alternative problem.

I noticed the other day that suddenly my dac was sounding very distorted and did not work at all from cold, so Ive just tested everything out as manual set up tests; discovered that the PSU (placid bp hd) was increasing its V output with change in VR1B (~current), obviously not correct. Also not shunting anything on its negative rail even with much increased current.

To cut a long story short, without the legato the placid is behaving perfectly; measuring the legato V to earth, I can see that the V is identical for each parallel component and that changing or removing V- input makes no difference to readings.

Is this likely to be the relay not cutting in, or something else perhaps?
Should the relay be making a 'click' noise btw?


Thanks,
Lucas

I have fixed it, thanks Rich you inspired me to try it once more before starting any desoldering and testing... definitely many thanks there!

Unfortunately I don't know exactly how it was fixed or what the problem was. All I can say is that after the third attempt today of resetting everything again from scratch it seems to be stable again.

L

Edited by user Thursday, September 20, 2012 11:03:51 AM(UTC)  | Reason: Not specified