CarAudioForum.com

Go Back   CarAudioForum.com > UseNet Gateway > F.A.Q. > Components

Reply
Old 07-14-2002, 06:40 PM   #1
Lee

Administrator
 
Join Date: May 1997
Location: Pensacola, FL
Posts: 22,128
Lee has a reputation beyond reputeLee has a reputation beyond reputeLee has a reputation beyond reputeLee has a reputation beyond reputeLee has a reputation beyond reputeLee has a reputation beyond reputeLee has a reputation beyond reputeLee has a reputation beyond reputeLee has a reputation beyond reputeLee has a reputation beyond reputeLee has a reputation beyond repute



Motor noise I get with my portable CD player ..

Quote:
3.21 What's that weird motor noise I get with my portable CD player? [JSC]
Many people report problems while playing CDs from a portable CD player into their car audio systems. The problem, stated very simply, has to do with the stepping of the motor requiring a varying amount of current and non-isolated power and audio signal grounds. Using a liberal application of capacitors and inductors, this voltage variance can be restricted to a window of 8.990 to 9.005V for a 9V CD player, yet even the swing between these two levels is enough to cause annoyingly loud noise on the outputs. It has been reported that this entire problem can be solved by using a true DC-DC inverter at the power input to the CD player.
Lee is offline   Reply With Quote

Sponsored Links
Help Syrian Refugees Survive. Donate Now!
Or text REFUGEES to 50555 to give $10 to USA for UNHCR
Reply

Bookmarks

Thread Tools
Display Modes

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 Off
HTML code is Off

Forum Jump


All times are GMT. The time now is 08:50 PM.
Powered by vBulletin® - Copyright © 2000 - 2017, Jelsoft Enterprises Ltd.
Copyright 1996 - 2011 by CarAudioForum.com - all rights reserved.