Hello

How much time the laser head of a Denon DCM420 cd player are lasting ?

Thank

Gaetan

"Gaetan Mailloux" wrote in message
...
Hello

How much time the laser head of a Denon DCM420 cd player are lasting ?

Thank

Gaetan

How long is a piece of string ?

It depends on many factors, including how often it is used, how dusty an
environment it lives in, whether it is a heavy smoking household and so on.
What's your actual problem with it ?

Arfa

"Arfa Daily" ) writes:
"Gaetan Mailloux" wrote in message
...
Hello

How much time the laser head of a Denon DCM420 cd player are lasting ?

Thank

Gaetan

How long is a piece of string ?

It depends on many factors, including how often it is used, how dusty an
environment it lives in, whether it is a heavy smoking household and so on.
What's your actual problem with it ?

Arfa




Hello

I want to modify my cd player, it was manufacture in 1991, I just want to
know if the laser will last many other years, so it would worth to work on
that Denon.

Thank

Gaetan

Gaetan Mailloux wrote:

I want to modify my cd player, it was manufacture in 1991, I just want to
know if the laser will last many other years, so it would worth to work on
that Denon.

Pray tell, exactly _what_ modification are you making that concerns you
about the laser head life?
--
Linux Registered User # 302622
http://counter.li.org

John Tserkezis ) writes:
Gaetan Mailloux wrote:

I want to modify my cd player, it was manufacture in 1991, I just want to
know if the laser will last many other years, so it would worth to work on
that Denon.

Pray tell, exactly _what_ modification are you making that concerns you
about the laser head life?
--
Linux Registered User # 302622
http://counter.li.org


Hello

Changing for better Dac, changing the I/V op amp, and few other things, It
just that I don't want to do that to see the cd player laser to die after
few other months.

Gaetan

Gaetan Mailloux wrote:

Changing for better Dac, changing the I/V op amp, and few other things, It
just that I don't want to do that to see the cd player laser to die after
few other months.

I'm not into the golden-eared modifications, truth be said, I'm half deaf so
it's all wasted on me, however:

Aren't there pro-level CD players for this?
Or are the mods a cheaper way of doing it?

Honestly, I don't see any mod making a huge difference, is this for some
specific purpose where the analogue reproduction is more important than just
trying to impress friends with music they couldn't tell the difference on anyway?
--
Linux Registered User # 302622
http://counter.li.org

"Gaetan Mailloux" wrote in message
...
John Tserkezis ) writes:
Gaetan Mailloux wrote:

I want to modify my cd player, it was manufacture in 1991, I just want
to
know if the laser will last many other years, so it would worth to work
on
that Denon.

Pray tell, exactly _what_ modification are you making that concerns you
about the laser head life?
--
Linux Registered User # 302622
http://counter.li.org


Hello

Changing for better Dac, changing the I/V op amp, and few other things, It
just that I don't want to do that to see the cd player laser to die after
few other months.

Gaetan

Most CD players, including Denons, have some form of digital output anyway,
so if you knock up an external DAC, it will be 'good to go' on virtually any
player. For what it's worth, I see many Denon HiFis in the workshop here,
and laser problems are not something that you would generally associate with
them (as much as many other makes). That said, some models do use very
bog-standard off-the-shelf lasers that have a finite lifetime in any
manufacturers' players, including theirs, so the answer to your question of
'when is the laser going to fail ?' could be anything between "another week
if you're lucky" and "never".

If you have the levels of expertise that are going to be needed to perform
electronic surgery on it, then I really wouldn't worry too much about about
laser life, as they are not particularly hard to change, or expensive.

Consider if you are seeing any problems with it right now before making a
decision. Is it slow to read the TOC on discs? Does it skip / jump easily
needing only a slight tap to make it do it? Does it struggle with old,
scratched discs? Does it struggle with 'home burns' ? If the answer to any
or all of these is "no", then the chances are that your laser has plenty of
life in it yet. If you can answer "yes" to any of them, then the first move
would be to clean it. If that cures it, then that's probably (mostly) all it
was, although if there is enough dust on the outside of the lens to cause a
problem, there's probably quite a bit on the internal optics as well. If
cleaning does not fix it, or only 'improves' it, then chances are that your
laser is not too much longer for this world ...

Hope that helps

Arfa