Xref: utzoo rec.music.cd:4518 sci.electronics:7797 rec.audio:15301
Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!rpi!joplin.cs.rpi.edu!mcintyre
From: mcintyre@cs.rpi.edu (David McIntyre)
Newsgroups: rec.music.cd,sci.electronics,rec.audio
Subject: CBD-650 Malfunction
Message-ID: <7382@rpi.edu>
Date: 17 Sep 89 00:37:49 GMT
Sender: usenet@rpi.edu
Organization: Rensselaer Polytechnic Institute, Troy, NY
Lines: 34

I have a 2 year old CDB-650 cd player, with a few mods, including the
Audio mods, and part of the Audio Amateur Mods.  It has worked
flawlessly, never having a single tracking problem.

I leave the cd player and my amp (an Adcom 555) on all the time,
except for times when I will be away for more than a day or so.
The pre-amp is just a passive volume/balance box I made with 
premium components.

This morning I put a cd in the player, hit the PLAY button, and
only clicks and pops came out of the speakers.  It was a new cd,
so I thought "oh, I finally got a bad cd!", so I put an old,
reliable cd into the player.  The same bad sounds came out.

Well, I unplugged the rest of the stereo and listened through the
headphones.  Same bad sounds.

I have opened it and looked at the boards; nothing looks amiss.  I
was hoping for an obviously blown part but no such luck.

I have the service manual, but most of the test points require 
a scope and logic probe -- that is the next step.

Does anyone have know what could cause this problem?  What steps
should I take to isolate the problem?  Help me, please!!  I am
a poor student, and I will not be able to hire a real, expensive
service man.
			Thanks,
			   Dave

Dave "mr question" McIntyre     |      "....say you're thinking about a plate
mcintyre@turing.cs.rpi.edu      |       of shrimp.....and someone says to 
office : 518-276-8633		|	you `plate,' or `shrimp'......"
home   : 518-271-6664		|