Silent CDX
Posted by: phil. S on 24 January 2003
Does anybody know if the CDX has some sort of "trip" switch? Last night I unplugged my system, without switching off, naughty, naughty I know but thats how most dealers do it! I wanted to experiment with a spur from the cooker socket. When I powered up the CDX was silent. The facia was working normally and I could hear the laser moving to find different tracks but no music. I plugged the CDX into the tuner input on the pre amp and it still didn't work, so must be the CDX. I took a look inside the CDX (I dont know why because I wouldn't know what I was looking at). Everything looked ok, nothing burnt, no loose wires or anything. Anyway, when I put it back together, guess what, it worked fine.
Obviously I will switch everything off before unplugging in future, but I am curious to know if some kind of surge protection thing is fitted? If not has anybody else had a similar problem or do you all switch off correctly first!
Cheers
Phil
Posted on: 24 January 2003 by Simon Douglass
Phil
Had exactly same experience as you

ccurred after switching back on after a thunderstorm:nothing from CDX[with XPS],but all lit up as normal.
Switched off,waited a minute or two,back on and worked fine.Hasn't happened since.Haven't got a clue why.
We get quite a few power cuts around here so I'm surprised has only happened on this one occasion.
Simon
Posted on: 24 January 2003 by Bob Shedlock
JUST MY THEORY -
The microprocessor needs to be reset.
This is accomplished by removing the power from the unit completely.
Have seen this behavior in other electronics before.
Posted on: 24 January 2003 by syd
Hi All
Do you think the processing circuitry can get confused?
I had a problem with my Micromega Stage 5 last night. When I went to change the CD I left the draw open and started hunting through my Various artist collection for a specific track. Could'nt find it at first but when I did after 9 or so minutes and put it in the draw the machine switched to standby. I could'nt get the player to respond and had to switch off at the mains and let it reinitialise. I was worried that I'd damaged it. but it was fine after resetting it.
Yours in Music
Syd
Posted on: 24 January 2003 by Richard Dane
Bob is almost right on the button here. When you switch on the unit there is sometimes the possibility that a spike in the mains (or a static discharge from yourself) can confuse the DSP chip which switches on the audio output. This is easily cured by switching off the unit, waiting a few minutes for the memory to clear and then switching on again.
Posted on: 24 January 2003 by Richard Dane
quote:
Originally posted by Alan Ball:
Richard,
You didn't get Microsoft to program the DSP did you ? 
-A-
If they had I think our service department would have hit melt-down a long time ago...
But seriously, all chips are vulnerable like this to some extent but our experience has shown it to be an extremely rare occurrence and, as I mentioned earlier, very simple to fix by powering down, leaving for a couple of minutes and then powering up again.
Posted on: 24 January 2003 by Mick P
Alex
Miss Brightman will never be silent unlike some CDX's.
Regards
Mick
Posted on: 25 January 2003 by phil. S
Thanks for all the posts guys.....I now know I haven't buggered it completely. Promise I'll turn it off properly next time.
The CDX is currently pumping out some fine, vintage FZ,,,,sounds brilliant!
Phil