Go Back   Home > Forums > Source & Line > Digital Line Level

Digital Line Level DACs, Digital Crossovers, Equalizers, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 17th September 2009, 12:08 PM   #1
diyAudio Member
 
Join Date: May 2001
Location: London UK
Default Best Way to cut Supply to USB Socket

I would like to cut the 5V supply on Pin 1 of a USB socket on a usb to spdif converter.

I can:

1. Unsolder the socket and cut the pin, then resolder back - I don't really want the hassle.

2. Cut a cable and reconnect the D+, D- and Ground lines - messy cable and easy.

3. Is there a better way like being able to get a molded adaptor or a cable?

  Reply With Quote
Old 17th September 2009, 12:29 PM   #2
diyAudio Member
 
jan.didden's Avatar
 
Join Date: May 2002
Location: Great City of Turnhout, Belgium
Blog Entries: 7
Quote:
Originally Posted by fmak View Post
I would like to cut the 5V supply on Pin 1 of a USB socket on a usb to spdif converter.

I can:

1. Unsolder the socket and cut the pin, then resolder back - I don't really want the hassle.

2. Cut a cable and reconnect the D+, D- and Ground lines - messy cable and easy.

3. Is there a better way like being able to get a molded adaptor or a cable?

?? Cut the track to the pin...?

jd
__________________
Never explain - your friends don't need it and your enemies won't believe you anyway - E. Hubbart
Check out Linear Audio Vol 7
!
  Reply With Quote
Old 17th September 2009, 01:58 PM   #3
diyAudio Member
 
Join Date: May 2001
Location: London UK
Quote:
Originally Posted by janneman View Post
?? Cut the track to the pin...?

jd
I guess I should have wriiten it. If there is a track to be cut, I would have done it! It's a multilayer board.
  Reply With Quote
Old 17th September 2009, 02:04 PM   #4
diyAudio Member
 
jan.didden's Avatar
 
Join Date: May 2002
Location: Great City of Turnhout, Belgium
Blog Entries: 7
Quote:
Originally Posted by fmak View Post
I guess I should have wriiten it. If there is a track to be cut, I would have done it! It's a multilayer board.
OK. What I have sometimes done is just to cut the connector pin above the board. You can easily repair it if necessary, but I don't know whether it is possible with your type of plug on the board.
Tell me, why do you need to cut that supply?

jd
__________________
Never explain - your friends don't need it and your enemies won't believe you anyway - E. Hubbart
Check out Linear Audio Vol 7
!
  Reply With Quote
Old 18th September 2009, 12:24 AM   #5
wwenze is offline wwenze  Singapore
diyAudio Member
 
Join Date: Mar 2008
Cut a small piece of tape...

Tape it over pin one

Add: Suggest taping the pin on one end of the cable, so the devices are left untouched. And Type-A connector is easiest to tape compared to type-B and mini/micro.

Last edited by wwenze; 18th September 2009 at 12:27 AM.
  Reply With Quote
Old 18th September 2009, 05:34 PM   #6
diyAudio Member
 
Join Date: May 2001
Location: London UK
Quote:
Originally Posted by janneman View Post
OK. What I have sometimes done is just to cut the connector pin above the board. You can easily repair it if necessary, but I don't know whether it is possible with your type of plug on the board.
Tell me, why do you need to cut that supply?

jd
I want to supply clean power to the adapter. The idea of using tape seems good and no, there is not sufficient protrusion to cut pins.
  Reply With Quote
Old 18th September 2009, 05:51 PM   #7
jkeny is offline jkeny  Ireland
Banned
 
Join Date: Feb 2007
Location: Dublin
Fred,
I did up a socket which my USB cable plugs into D+, D- & ground straight through - power & ground connected to external supply- there should be an improvement on the Musiland even as a transport!

This way I can plug the cable straight into the DAC or through the socket with external power & then to the DAC
  Reply With Quote
Old 19th September 2009, 05:07 AM   #8
diyAudio Member
 
Join Date: May 2001
Location: London UK
Quote:
Originally Posted by jkeny View Post
Fred,
I did up a socket which my USB cable plugs into D+, D- & ground straight through - power & ground connected to external supply- there should be an improvement on the Musiland even as a transport!

This way I can plug the cable straight into the DAC or through the socket with external power & then to the DAC
Good idea. However, in the USD version, bus power is regulated down to 3.3 and 1.2V via 1117 regulators and I think this accounts for the 'good' sound. It is these regulators that need improving and I may get round to it. The onboard closk is also disntinctly 'inferior' when compared to a reclocked output into my UA2192 which also offers a clock cleaning option.

The dac version may be different.
  Reply With Quote
Old 19th September 2009, 05:28 AM   #9
diyAudio Member
 
eclectic2k's Avatar
 
Join Date: Nov 2005
Location: Silicon Valley
Quote:
Originally Posted by fmak View Post
I would like to cut the 5V supply on Pin 1 of a USB socket on a usb to spdif converter.

I can:
1. Unsolder the socket and cut the pin, then resolder back - I don't really want the hassle.
2. Cut a cable and reconnect the D+, D- and Ground lines - messy cable and easy.
3. Is there a better way like being able to get a molded adaptor or a cable?
strip back some of the cable, open it up, and cut only the 5v wire. not as messy as cutting and patching the entire cable. Shouldn't be too difficult, still requires a bit of work. Can't think of anything better of the top of my head.
  Reply With Quote
Old 19th September 2009, 05:31 AM   #10
diyAudio Member
 
eclectic2k's Avatar
 
Join Date: Nov 2005
Location: Silicon Valley
Quote:
Originally Posted by fmak View Post
I want to supply clean power to the adapter. The idea of using tape seems good and no, there is not sufficient protrusion to cut pins.
of course there is this:
http://www.diyaudio.com/forums/pc-based/151844-usb-galvanic-isolation-post1927483.html

then you get to supply a clean ground and power to the peripheral/DAC...
  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
Which socket for a 5Y3?? Richard Ellis Tubes / Valves 2 11th November 2008 04:41 PM
Help on tube socket dung0981 Tubes / Valves 6 5th August 2006 08:31 AM
what rca socket do you think is best?? wuffer Parts 24 25th May 2006 11:35 PM
RCA socket without having to solder? reMC Parts 3 9th June 2005 06:34 AM
Op-Amp Socket justpoor Digital Source 3 8th March 2005 09:23 PM


New To Site? Need Help?

All times are GMT. The time now is 12:35 PM.


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