Tweaking a cheap Tenor TE7022 USB converter board - Page 2 - diyAudio
Go Back   Home > Forums > Source & Line > PC Based

PC Based Computer music servers, crossovers, and equalization

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 23rd April 2013, 07:58 PM   #11
diyAudio Member
 
Join Date: Jun 2012
OK, that was my misunderstanding. I do appreciate your help and wiring is now added on the to-do list for this little project...
  Reply With Quote
Old 23rd April 2013, 08:20 PM   #12
McLanz is offline McLanz  Germany
diyAudio Member
 
McLanz's Avatar
 
Join Date: Oct 2006
Location: South West
Cool change the 5V supply

Hi,

I've got expirience with DIYParadise's Monica for a long time now.
It onced used a PCM2706 USB chip supplied by USB 5V.

The far most impressive tweak I had was to play with a very clean 5V source
I started to cut the USB power supply and used mignon batteries, then expensiv tinfoil lead batteries which had "around" 5V volts.

The difference was huge. Why ? ->The battery is isolated from any GND issue you mave have with mains, also the lack of very high frequency trash. The difference is huge: Jitter improved (to my ears), it was much more quiete. And so staging, dynamics, details...improved

Now I use a 12V7Ah standard Lead acid /gel battery with a Paul Hynes 5V series regulator and this was again a small step further.


BTW: Different batteries changed the sound in my tests. Also capacitor after the battery did, I only enjoyed the "Black Gates"...but didn't had a lot of other things laying around, at least standard caps didn't sound well.



Bringing it to point: My expirience was that the supply modification of the USB chip was a huge step. I guess it can be easily done too at your PCB. Just remove the Plus of the USB and connect the battery pack to + and the GND. (USB GND is still needed)

Good Luck
__________________
I love high sensitive Fullrange drivers, currently listen with tube amps, NOS DAC, the good old vinyl. I'm optimizing my mains line situation...Located in South/West of Germany. **Love Arts and of course most of all my Family**
  Reply With Quote
Old 24th April 2013, 03:27 AM   #13
diyAudio Member
 
Join Date: Jun 2012
Quote:
Originally Posted by McLanz View Post

Bringing it to point: My expirience was that the supply modification of the USB chip was a huge step. I guess it can be easily done too at your PCB. Just remove the Plus of the USB and connect the battery pack to + and the GND. (USB GND is still needed)

Good Luck
McLanz, this is interesting to me. The board came with a switch for using an external power source. I bypassed the switch (making sure to switch the USB power off) and bypassed the little surface mount rectifier and connected 14V from the CD player PCB directly to the 5V regulator. Do you think the battery would be even better? Can you send me a link to a typical battery for this type of application?
  Reply With Quote
Old 24th April 2013, 03:49 AM   #14
diyAudio Member
 
Join Date: Apr 2007
Hello

Anybody did try the TE7022 USB converter on a old Mac computer with a
OS 9, does it work good with a Mac and OS 9 ?

Thank

Bye

Gaetan

Last edited by gaetan8888; 24th April 2013 at 03:52 AM.
  Reply With Quote
Old 24th April 2013, 03:28 PM   #15
diyAudio Member
 
Join Date: Jun 2012
Quote:
Originally Posted by gaetan8888 View Post
Anybody did try the TE7022 USB converter on a old Mac computer with a
OS 9, does it work good with a Mac and OS 9 ?
I don't know the answer to that question, but the table partway down the page on the following link suggests that it should work, since it is a USB Audio Class 1.0 device:
Ratoc Systems: Digital Audio Transport with USB Audio Class 2 Support RAL-24192UT1:
  Reply With Quote
Old 25th April 2013, 07:52 PM   #16
McLanz is offline McLanz  Germany
diyAudio Member
 
McLanz's Avatar
 
Join Date: Oct 2006
Location: South West
Hi, yes I do so! I'm pretty sure you'll like it!

Well the battery "to start" is maybe laying around already its not neccearry needed to have a special quality for a first test.


A) to just replace the 14V CDP supply take a Panasonic sealed lead acid - gel battery like this: "LC-R127R2PG"
thats what I did with success!

or

use what is more practival use a smaller one with 12Volts but less capacity maybe 3.2Ah. Its smaller of course you need a charger then but thats cheap.


B)
To supply 5V you may order very good regulator or use batteries in the range of 5V volts some tolerance is allowed like +/- 1V (read the datasheet!!!).

I would advise to buy the Panasonic battery and start this way. Such a battery is always good to have around

Jochen
__________________
I love high sensitive Fullrange drivers, currently listen with tube amps, NOS DAC, the good old vinyl. I'm optimizing my mains line situation...Located in South/West of Germany. **Love Arts and of course most of all my Family**
  Reply With Quote
Old 29th April 2013, 06:18 PM   #17
diyAudio Member
 
Join Date: Jun 2012
Quote:
Originally Posted by McLanz View Post
I would advise to buy the Panasonic battery and start this way. Such a battery is always good to have around

Jochen
If I got such a battery would I need to have a charger hooked up to it?
  Reply With Quote
Old 29th April 2013, 09:37 PM   #18
McLanz is offline McLanz  Germany
diyAudio Member
 
McLanz's Avatar
 
Join Date: Oct 2006
Location: South West
Default Good - lets start

Quote:
Originally Posted by themartianboy View Post
If I got such a battery would I need to have a charger hooked up to it?
Hi good you have already a battery!

No you don't need a charger all the time - this would even take away the positive effect of the battery. Don't contact the battery all the the time just for the hours it get charged.

I don't think your USB chip will consume a lot of energy! It will be just a few mA's. So charge your battery initially - and then hook it to your USB chip. It should last two weeks or longer without problems...
The 12V battery should be charged again when entering 12,3V. This avoids degradation.

Today just measure the voltage and if above that just hook it to your chip
and have some good music

PS: If you're going to take away the battery often...mark the poles with colour or solder in a diode to avoid killing your USB chip by a second of not being concentrated

Jochen
__________________
I love high sensitive Fullrange drivers, currently listen with tube amps, NOS DAC, the good old vinyl. I'm optimizing my mains line situation...Located in South/West of Germany. **Love Arts and of course most of all my Family**
  Reply With Quote
Old 30th April 2013, 12:10 PM   #19
marce is offline marce  United Kingdom
diyAudio Member
 
Join Date: Jun 2007
Location: Blackburn, Lancs
A regulator after a bettery is a very good idea, as digital likes nice solid supplies, and for digital it is the best option. There is also a good thread on battery noise.
  Reply With Quote
Old 1st May 2013, 09:17 PM   #20
diyAudio Member
 
Join Date: Jun 2012
Quote:
Originally Posted by McLanz View Post
Hi good you have already a battery!
Unfortunately I don't have a battery yet. I was wondering if I would need to buy a charger too. What kind of charger would work for that battery?
  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
WEILIANG DAC5 - WM8741 & Tenor TE7022 dhalbakken Digital Source 387 28th February 2014 07:40 PM
Info on Tenor TE7022? chaparK Digital Source 22 19th December 2013 11:02 AM
FS:Finished USB DAC - WM8741 & Tenor TE7022 diyhifishop Vendor's Bazaar 17 13th July 2013 11:05 PM
Cleaning continues - FS: Amanero USB to I2S 384kHz DSD converter board ultrafi Swap Meet 4 22nd February 2013 11:39 PM
FS: Amanero USB to I2S 384kHz DSD converter board ultrafi Swap Meet 4 20th February 2013 10:36 PM


New To Site? Need Help?

All times are GMT. The time now is 04:38 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