My terrible (non-fatal) Mistake ! - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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
Thread Tools Search this Thread
Old 28th January 2007, 10:02 AM   #1
lykkedk is offline lykkedk  Denmark
diyAudio Member
lykkedk's Avatar
Join Date: Dec 2002
Location: Denmark, Fredericia
Red face My terrible (non-fatal) Mistake !

Hmmm... I made a testsetup, with my DAC, connected through a Toslink TORX173, Strange sound ?, well, there was some 'Humming', a lot more, than i was used to, with my previous testsetup ???.

What to do then ? I tried to connect a testcable between the big 'GND' Connector on the s/pdif board to the left/right out RCA's, then the sound dissapeared from left channel ??? Strange it is ...

I took the hole thing, to my workshop, and looked carefully at this setup.... Ohhh stupid me ! The mistake i suddently see, I had by mistake connected the GND, along with the +out Right channel ???.

Now everything is working, and the hum is gone completly

I am surprised, it had actually worked, but it must be something with the 10K input impedance of my preamp, along with the 100K resistors on the RCA's of the dac. ??? I allway's doublecheck connection's before testing thing's but this time, i made a mistake... Well glad that it worked out well at last.. Look at my picture and have a nice day.
Attached Images
File Type: jpg my dddac.jpg (97.0 KB, 256 views)
DCG3 Dual DCSTB, R2R DAC in build (2 ReflectorD's (+5VDC/+3.3VDC) + SSLV1.1 (+/-12VDC))
AlephJ Mimi!
  Reply With Quote


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
Crossfire VR2000D Sounds terrible Mr. Old School Car Audio 3 26th December 2007 08:01 PM
Amp1-B Terrible Bass Performance dsavitsk Class D 16 18th September 2005 09:05 PM
Help, Shiva sounds terrible weddie Multi-Way 35 5th August 2004 07:18 PM
Tuner sounds terrible BernieA Everything Else 1 25th March 2003 12:33 PM
Terrible HISSING Amplifier!!! Duo Solid State 29 5th December 2002 05:00 PM

New To Site? Need Help?

All times are GMT. The time now is 06:19 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2