!Buffalo 2 problem! - Page 3

jasonthegreat · 22nd May 2011, 04:40 AM

okay, I will tommorrow night, since I have to go get my dads camera.

but like I said, 1 of the 4 transformers (they call it(?)) is extremely hot, so that resistor failing could be it. Is the legato board the lcdbs? I have two lcdps board, on which each board have two black thing (i hope people understand what I mean), and on one of the board, one black thing gets super hot, and the other not, and on the other side, both remain relativly mildly hot...

ouff I feel a bit release as I feel we located the problem. thanks guys and I will post the pic tommorrow

PCKING · 22nd May 2011, 04:52 AM

The "Black" things are actually Heatsinks for the Voltage Regulators.

The LCBPS is not the Legato Board. The LCBPS is the power regulator board to supply power to the DAC or Legato I/V board.

Since you do not really understand what is what, a photo will speak a thousand words.

BrianDonegan · 22nd May 2011, 12:32 PM

Have you spoken to the Person who built and sold you the unit?

jasonthegreat · 22nd May 2011, 10:06 PM

Okay, I'm back from work.
I talked to the seller and he assure me that the DAC was working perfectly, but how do we know for sure.

pcking: how can you know that the problem might come from the capacitor? How can I find the problematic caps? Do you want any specific picture from the dac, what parts do you want to see?

Brian: have you ever experience with the problem I'm describing?

thanks

PCKING · 22nd May 2011, 11:59 PM

Quote:

Originally Posted by jasonthegreat

Okay, I'm back from work.

pcking: how can you know that the problem might come from the capacitor? How can I find the problematic caps? Do you want any specific picture from the dac, what parts do you want to see?

thanks

Hi Jason, I didn't say it was capacitors. I said it might be the resistors. I had a similar problem on my Legato.

An overview photo of the entire DAC would be good for now. It's basically to determine what you are having besides the BuffaloII DAC board. Or maybe you can ask the seller what are the various boards in your chassis.

I don't think it's the DAC board that is having this issue.

orpheus · 23rd May 2011, 07:54 PM

Do you have a DVD player, or CD player with a digital output? Try playing a CD through that into the Buffalo just to see what happens. Using computer audio there are too many variables to isolate your issue. If you have the problem with both sources, I would continue to diagnose the Buffalo using a digital source with fewer variables.

jasonthegreat · 23rd May 2011, 09:43 PM

okay, here is what I have:
The boards are:
Buffalo II
Legato
LCDPS
LCBPS
Trident Regulators

jasonthegreat · 23rd May 2011, 11:22 PM

I'm going to get a cd player tonight with digital out, since I dont have any.

But in the meantime, can someone tell me if its normal that only one heatsink gets really really hot, while all the other are just slightly hot...

BrianDonegan · 23rd May 2011, 11:35 PM

Yes. The side of the LCDPS that is supplying the Buffalo will get hot because it is delivering a lot of current.

PCKING · 24th May 2011, 12:02 AM

Quote:

Originally Posted by jasonthegreat

okay, here is what I have:
The boards are:
Buffalo II
Legato
LCDPS
LCBPS
Trident Regulators

Hmm... Since U have the Legato, there is a very high possibility that it's due to the resistors once U can confirm the problem is still there even with a CDP/DVDP as source.

22nd May 2011, 12:32 PM	#23
BrianDonegan diyAudio Member Join Date: Dec 2004 Location: Rock Ridge	Have you spoken to the Person who built and sold you the unit? __________________ Twisted Pear Audio

23rd May 2011, 11:35 PM	#29
BrianDonegan diyAudio Member Join Date: Dec 2004 Location: Rock Ridge	Yes. The side of the LCDPS that is supplying the Buffalo will get hot because it is delivering a lot of current. __________________ Twisted Pear Audio

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Buffalo II	Russ White	Twisted Pear	1820	7th February 2013 06:48 PM
Buffalo Dac original vs Buffalo II	mrtakib	Digital Line Level	7	24th August 2010 06:47 AM
Buffalo II audio dropouts SPDIF/I2S noise ground problem	merlin el mago	Digital Line Level	9	2nd May 2010 11:21 AM
Buffalo Tweaking	jkeny	Digital Line Level	316	10th March 2010 09:14 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read

22nd May 2011, 04:40 AM	#21
jasonthegreat diyAudio Member Join Date: Mar 2011	okay, I will tommorrow night, since I have to go get my dads camera. but like I said, 1 of the 4 transformers (they call it(?)) is extremely hot, so that resistor failing could be it. Is the legato board the lcdbs? I have two lcdps board, on which each board have two black thing (i hope people understand what I mean), and on one of the board, one black thing gets super hot, and the other not, and on the other side, both remain relativly mildly hot... ouff I feel a bit release as I feel we located the problem. thanks guys and I will post the pic tommorrow

22nd May 2011, 04:52 AM	#22
PCKING diyAudio Member Join Date: May 2008	The "Black" things are actually Heatsinks for the Voltage Regulators. The LCBPS is not the Legato Board. The LCBPS is the power regulator board to supply power to the DAC or Legato I/V board. Since you do not really understand what is what, a photo will speak a thousand words.

22nd May 2011, 10:06 PM	#24
jasonthegreat diyAudio Member Join Date: Mar 2011	Okay, I'm back from work. I talked to the seller and he assure me that the DAC was working perfectly, but how do we know for sure. pcking: how can you know that the problem might come from the capacitor? How can I find the problematic caps? Do you want any specific picture from the dac, what parts do you want to see? Brian: have you ever experience with the problem I'm describing? thanks

23rd May 2011, 07:54 PM	#26
orpheus diyAudio Member Join Date: Jul 2004 Location: NYC	Do you have a DVD player, or CD player with a digital output? Try playing a CD through that into the Buffalo just to see what happens. Using computer audio there are too many variables to isolate your issue. If you have the problem with both sources, I would continue to diagnose the Buffalo using a digital source with fewer variables.

23rd May 2011, 09:43 PM	#27
jasonthegreat diyAudio Member Join Date: Mar 2011	okay, here is what I have: The boards are: Buffalo II Legato LCDPS LCBPS Trident Regulators

23rd May 2011, 11:22 PM	#28
jasonthegreat diyAudio Member Join Date: Mar 2011	I'm going to get a cd player tonight with digital out, since I dont have any. But in the meantime, can someone tell me if its normal that only one heatsink gets really really hot, while all the other are just slightly hot...