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muzzy  
#1 Posted : Wednesday, August 15, 2012 7:10:03 PM(UTC)
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Hi All,

Looking for your help! Some time ago I accomplished the following set - Buffalo II+ Trident, Legato 3.1, Placid HD_BP, LCDPS. Everything worked just fine until I left it for several months :))
After that period there was no sound at all, I've checked the voltage and it was twice more on Buffulo (10 or 12V), I don't know why. Outputs both from Placid HD_BP, LCDPS seem to be ok, tridents are alive as well. What should I do to restart my DAC!!!! Please help!
Thanks in advance and greetings from Moscow!
avr300  
#2 Posted : Wednesday, August 15, 2012 8:54:19 PM(UTC)
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Quote:

I've checked the voltage and it was twice more on Buffulo (10 or 12V)"


Pls explain. Where did you measure the 10-12V ?
muzzy  
#3 Posted : Thursday, August 16, 2012 6:56:19 PM(UTC)
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[img]null[/img]
Originally Posted by: avr300 Go to Quoted Post
Quote:

I've checked the voltage and it was twice more on Buffulo (10 or 12V)"


Pls explain. Where did you measure the 10-12V ?


LCDPS output. See the picture of my setup below (this is my first experience)
DAC setup

Edited by user Thursday, August 16, 2012 6:57:25 PM(UTC)  | Reason: Not specified

avr300  
#4 Posted : Thursday, August 16, 2012 8:04:56 PM(UTC)
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By that do you mean that the Buffalo has had 10v on it's 5v input ?
muzzy  
#5 Posted : Friday, August 17, 2012 6:58:27 AM(UTC)
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Originally Posted by: avr300 Go to Quoted Post
By that do you mean that the Buffalo has had 10v on it's 5v input ?


Exactly.
Previously I tuned everything and it worked. Then the voltage have changed in itself. I retuned it once again, all lights are working, voltage at Tridents and Balanced outputs are Ok, but there is no sound!
Russ White  
#6 Posted : Saturday, August 18, 2012 3:25:01 AM(UTC)
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Yikes.... This requires so better close ups. :)
muzzy  
#7 Posted : Monday, August 20, 2012 8:45:56 AM(UTC)
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Originally Posted by: Russ White Go to Quoted Post
Yikes.... This requires so better close ups. :)


Russ, thank you for setting eyes on my problem. What do I need to measure/repair??
avr300  
#8 Posted : Monday, August 20, 2012 3:28:51 PM(UTC)
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You need to take a really sharp picture, close-up of the DAC.
muzzy  
#9 Posted : Sunday, August 26, 2012 7:53:43 PM(UTC)
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Originally Posted by: avr300 Go to Quoted Post
You need to take a really sharp picture, close-up of the DAC.


Here they are. Sorry for the quality, my camera needs urgent upgrade :) I can try to retake some pictures if you need.
UserPostedImage
UserPostedImage
UserPostedImage
UserPostedImage
UserPostedImage

Edited by user Sunday, August 26, 2012 7:56:51 PM(UTC)  | Reason: Not specified

LeonvB  
#10 Posted : Sunday, August 26, 2012 9:09:15 PM(UTC)
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Why is the firmware missing?
I'm also seeing lots of connections without any visible solder. Before you proceed I would suggest fixing that first.
thanks 1 user thanked LeonvB for this useful post.
muzzy on 9/16/2012(UTC)
muzzy  
#11 Posted : Sunday, September 16, 2012 5:28:58 PM(UTC)
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Originally Posted by: LeonvB Go to Quoted Post
Why is the firmware missing?
I'm also seeing lots of connections without any visible solder. Before you proceed I would suggest fixing that first.


Hi,
Checked connections - all of them except radiators are solded rather good.
I have no firmware at all from the beginning and everything worked fine! Have changed Legato 3.1 to my previously installed Legato v1 and 100% known working and there was no sound :(

Later on checked voltage on Tridents and suddenly locked Trident 1.2V - and +, after it I've got only 0,1 DC instead of 1,2 :((
Don't know was it cause or consequence but now I have 100% dead DAC board or at least Trident. How can I fix it or check it operability?
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