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cubeasic  
#1 Posted : Thursday, May 31, 2012 7:15:06 PM(UTC)
cubeasic

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Hallo,

I ran into a problem today. There is no sound coming out of my Legato3.1/BIII anymore.
I used the Buffalo DAC yesterday, left it on over the night and today it is broken.

The voltages at the placid PB HD are +14V and -2.2V, so there is clearly something malfunctioning.
When i disconnect the Legato from its powersupply I read +14V/-14V at the Placid-output, as it should be.
This indicates that the Legato is the problem here.
The DAC Voltages are fine with 5.25V. All trident-Lights are on.

Has anyone an idea where I should start to track down the problem?
Thanks for any help


Update:
Now the Voltages at the Placid output seem to be normal again. Both at around +-14V.
Music is also playing again.

I think I remember that I had this issue before.
Anyone knows what this could be?

Edited by user Thursday, May 31, 2012 7:50:03 PM(UTC)  | Reason: Not specified

Rob Smit  
#2 Posted : Wednesday, June 20, 2012 7:02:08 AM(UTC)
Rob Smit

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Taiwan, Province Of China
Location: Taipei

Check the PB HD if the shunt current is high enough for both sides (>50mA).

If ok, check both the PB HD and the Legato for shorts, solder splashes, loose connections etc.

Use the back of a screwdriver to softly tab the PCB on several places to find bad connections.

Hope this helps.

Russ White  
#3 Posted : Wednesday, June 20, 2012 11:57:25 PM(UTC)
Russ White

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Sound like you Placid HD-BP may simply have gotten a bit too warm?
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