Buffalo III - SE - Page 23 - diyAudio
Go Back   Home > Forums > Commercial Sector > Manufacturers > Twisted Pear

Twisted Pear Superior quality electronic kits

Reply
 
Thread Tools Search this Thread
Old 29th December 2012, 01:52 PM   #221
diyAudio Member
 
Russ White's Avatar
 
Join Date: Jan 2005
Location: Nashville, TN, USA
Send a message via Yahoo to Russ White
For safety, your chassis should be connected to mains earth. Nothing else need be.
__________________
Less pulp more juice Twisted Pear Audio.
  Reply With Quote
Old 29th December 2012, 02:01 PM   #222
diyAudio Member
 
BrianDonegan's Avatar
 
Join Date: Dec 2004
Location: TPA HQ
If you do decide to connect the DAC/PSU/Signal grounds to the chassis ground, do so in only one place (star ground). Multiple ground paths will result in ground loops and noise.

If you are using TPA components and wiring correctly, the DAC's ground will be connected to the PSU's ground and the output stage's ground already, so only one connection to the chassis would be needed.
__________________
Twisted Pear Audio
  Reply With Quote
Old 29th December 2012, 03:27 PM   #223
diyAudio Member
 
Join Date: Apr 2008
Thanks guys, Everything worked perfectly from switch on. I have the ps in a separate box (earthed) and just ran 2 wires to the dac. The transformer secondaries are 0v referenced at the power amp only.

May I say huge thanks for the great sound - really enjoying it on usb - not just flac files etc sound good, but listening to U-tube jazz lessons is a whole new experience.

At present using a 317 reg ps - planning to upgrade to Placid. Any comments on difference to expect?

best wishes, martin
  Reply With Quote
Old 29th December 2012, 04:27 PM   #224
manudrz is offline manudrz  France
diyAudio Member
 
Join Date: Feb 2012
Location: Ducey
Instead of the green leds mounted on the PCB, can I put two blue leds (mute/lock) on the front of my box ?
Blue leds are 2 mm - 3V - 30mA max

Also, to get a little off buffalo-topic, when I'm sure placids work properly, can I remove the green LEDs? I'm afraid it could illuminate through my air holes :/
  Reply With Quote
Old 29th December 2012, 06:02 PM   #225
diyAudio Member
 
Russ White's Avatar
 
Join Date: Jan 2005
Location: Nashville, TN, USA
Send a message via Yahoo to Russ White
Blue LEDs have a bit too much forward voltage.

No you cannot remove the LEDs from Placid - they are an integral part of the circuit.
__________________
Less pulp more juice Twisted Pear Audio.
  Reply With Quote
Old 29th December 2012, 06:03 PM   #226
diyAudio Member
 
Russ White's Avatar
 
Join Date: Jan 2005
Location: Nashville, TN, USA
Send a message via Yahoo to Russ White
Quote:
Originally Posted by Truetone View Post
Thanks guys, Everything worked perfectly from switch on. I have the ps in a separate box (earthed) and just ran 2 wires to the dac. The transformer secondaries are 0v referenced at the power amp only.

May I say huge thanks for the great sound - really enjoying it on usb - not just flac files etc sound good, but listening to U-tube jazz lessons is a whole new experience.

At present using a 317 reg ps - planning to upgrade to Placid. Any comments on difference to expect?

best wishes, martin
Glad to hear it!

The difference is subtle, but things will definitely be a bit better.
__________________
Less pulp more juice Twisted Pear Audio.
  Reply With Quote
Old 29th December 2012, 06:46 PM   #227
manudrz is offline manudrz  France
diyAudio Member
 
Join Date: Feb 2012
Location: Ducey
Ok, I let the green ones in place...
  Reply With Quote
Old 29th December 2012, 07:42 PM   #228
diyAudio Member
 
Join Date: Apr 2008
I noticed the green LEDs on the DVCC Trident don't light up (they are all lit on the VDD and VDD_XO) Is this normal? I have confirmed the ps voltage at the input is correct (5.25v)

thanks,
  Reply With Quote
Old 29th December 2012, 11:48 PM   #229
diyAudio Member
 
Russ White's Avatar
 
Join Date: Jan 2005
Location: Nashville, TN, USA
Send a message via Yahoo to Russ White
Quote:
Originally Posted by Truetone View Post
I noticed the green LEDs on the DVCC Trident don't light up (they are all lit on the VDD and VDD_XO) Is this normal? I have confirmed the ps voltage at the input is correct (5.25v)

thanks,
No. It is not normal. What is it's voltage output?
__________________
Less pulp more juice Twisted Pear Audio.
  Reply With Quote
Old 30th December 2012, 12:58 AM   #230
manudrz is offline manudrz  France
diyAudio Member
 
Join Date: Feb 2012
Location: Ducey
I've tested one of my blue led, it lights up with two aaa batteries, and I measured 2.7V, I think I'll try these leds on the lock/mute
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Buffalo III - flexibility without compromise. Russ White Twisted Pear 1339 3rd August 2014 11:08 AM
Buffalo III Build Thread dheming Twisted Pear 11 26th February 2014 02:30 AM
Buffalo III and Integer / HOG jtwrace Twisted Pear 5 19th January 2012 05:41 PM
WTB: Buffalo II/III DAC merlin2069er Swap Meet 1 10th January 2012 05:50 PM


New To Site? Need Help?

All times are GMT. The time now is 04:21 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2