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

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, 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 11th August 2011, 12:39 PM   #481
diyAudio Member
 
Join Date: Mar 2001
Location: Brazil
Yes, that's the same kit I bought: all SMD parts soldered in.
  Reply With Quote
Old 12th August 2011, 05:40 PM   #482
diyAudio Member
 
Join Date: Jun 2011
Am I the only one who misses some bass? and dynamic. Maybe something is wrong with my DAC ??

Last edited by Silver84; 12th August 2011 at 05:57 PM.
  Reply With Quote
Old 12th August 2011, 06:16 PM   #483
diyAudio Member
 
Join Date: Jun 2011
I use 2 transformers 30va each. At the 2way block i have : 12,81v AC, and the 3 way block : 14,11v Ac. The power total is 0,1A, before the transformers. The 3 regulators is not getting warm at all ? only about 42* Celsius??

Last edited by Silver84; 12th August 2011 at 06:22 PM.
  Reply With Quote
Old 12th August 2011, 07:24 PM   #484
Reality first!
diyAudio Member
 
ClaveFremen's Avatar
 
Join Date: May 2005
Location: Milan, Italy
Quote:
Originally Posted by Silver84 View Post
Am I the only one who misses some bass? and dynamic. Maybe something is wrong with my DAC ??
Nothing, you should only apply the suggeste mods...

Start with regulators and LPF capacitors...
__________________
Dario
ClaveFremen "Bailando Salsa en el Sietch" - My_Ref Fremen Edition GB
  Reply With Quote
Old 12th August 2011, 08:24 PM   #485
diyAudio Member
 
Join Date: Jun 2011
Quote:
Originally Posted by ClaveFremen View Post
Nothing, you should only apply the suggeste mods...

Start with regulators and LPF capacitors...
Okay :-)

on my to do list is : change the 3 nichicon in the psu to Nichicon FW 2200uF 63 v (ordered) change the 2 caps after to Silmic II 220uF 50v(ordered). Change the "c3" digital cap, to Sanyo SEPC 470uF 16v (ordered) change the 3 regulators to Mc****CTG (right ???? ) Other things to change, who has a good improvement ??
  Reply With Quote
Old 12th August 2011, 10:09 PM   #486
pre65 is offline pre65  United Kingdom
diyAudio Member
 
Join Date: Oct 2005
Location: Essex/Suffolk borders.UK
I have a completely standard DAC at the moment, but having now read the whole thread will probably get another kit and start modding that.

I see mention of hot regulators. My 15-0-15 transformer was actually putting out 17-0-17 and I did have hot regulators.

Putting a 50R (ish) resistor in each lead (not centre tap) brought the voltage down to 15 and no more hot regs.
  Reply With Quote
Old 12th August 2011, 10:45 PM   #487
Reality first!
diyAudio Member
 
ClaveFremen's Avatar
 
Join Date: May 2005
Location: Milan, Italy
Quote:
Originally Posted by Silver84 View Post
Mc****CTG (right ???? ) Other things to change, who has a good improvement ??
Yes, On Semiconductors MC7xxxCTG.

LPF capacitors...
FKP2 or FKS2 or even better the old NOS FKC2, you can find them on eBay.

Insert some carbon films too
__________________
Dario
ClaveFremen "Bailando Salsa en el Sietch" - My_Ref Fremen Edition GB
  Reply With Quote
Old 12th August 2011, 11:12 PM   #488
diyAudio Member
 
Join Date: Jun 2011
Quote:
Originally Posted by ClaveFremen View Post
Yes, On Semiconductors MC7xxxCTG.

LPF capacitors...
FKP2 or FKS2 or even better the old NOS FKC2, you can find them on eBay.

Insert some carbon films too
Thanks
Btw. Any recommendations for the wires between the dac and the RCA chassis plugs ? I use ordinary copper wire (1mm2) But think i can do this better.

Last edited by Silver84; 12th August 2011 at 11:17 PM.
  Reply With Quote
Old 13th August 2011, 01:06 PM   #489
nuryev is offline nuryev  Australia
diyAudio Member
 
Join Date: Aug 2007
Hi evangelion
do you have any of the boards or kits available for this diy dac?
Thanks
__________________
NYV
  Reply With Quote
Old 13th August 2011, 01:59 PM   #490
awpagan is offline awpagan  Australia
diyAudio Member
 
Join Date: Nov 2004
Location: sydney
Quote:
Originally Posted by Silver84 View Post
Thanks
Btw. Any recommendations for the wires between the dac and the RCA chassis plugs ? I use ordinary copper wire (1mm2) But think i can do this better.
Old cat5 network cable.
__________________
Indecision makes the world gone round.
Maybe
  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
AK4393 burn... CIMONE Digital Line Level 5 24th June 2011 02:12 PM
AK4393 to CS4223? CIMONE Digital Line Level 0 13th December 2009 02:30 PM
AK4393 Serial Configuration Problem Aoxomox Digital Line Level 0 20th March 2009 05:25 PM
AK4393, CS8413 and CS8414 Data Sheets Blue_Max Digital Source 0 23rd December 2004 01:37 PM


New To Site? Need Help?

All times are GMT. The time now is 09:03 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