Pioneer DV-344

P

paul

Guest
My 2 year old DVD player has started to give trouble. Initially it would
sometimes refuse to recognise homemade VCDs that I had made - "No Disk"
either when I put them into the machine or part way through playing them.
I thought it was because I was using a different type of blank media. But
then it started doing it with others - homemade music CDs and I think the
other day a commercial CD stopped playing after about halfway. It still
has no problems with DVDs but I primarily bought it for my homemade VCDs.

Any ideas on how I can fix this? I have taken it apart and cleaned the
lens to no effect.

Thanks
 
Try cleaning the laser lens. Most likely the laser unit is becoming weak.

--

Greetings,

Jerry Greenberg GLG Technologies GLG
=========================================
WebPage http://www.zoom-one.com
Electronics http://www.zoom-one.com/electron.htm
=========================================


"paul" <paulri@email.com> wrote in message
news:MPG.1aedf52dff8e1f7e989682@130.133.1.4...
My 2 year old DVD player has started to give trouble. Initially it would
sometimes refuse to recognise homemade VCDs that I had made - "No Disk"
either when I put them into the machine or part way through playing them.
I thought it was because I was using a different type of blank media. But
then it started doing it with others - homemade music CDs and I think the
other day a commercial CD stopped playing after about halfway. It still
has no problems with DVDs but I primarily bought it for my homemade VCDs.

Any ideas on how I can fix this? I have taken it apart and cleaned the
lens to no effect.

Thanks
 
Pioneer's use a dual-wave laser. Apparently that portion of yours is getting
weak, since cleaning did not help.

This probably puts this unit out of the range of an economical repair.

Mark Z.

--
Please reply only to Group. I regret this is necessary. Viruses and spam
have rendered my regular e-mail address useless.


"paul" <paulri@email.com> wrote in message
news:MPG.1aedf52dff8e1f7e989682@130.133.1.4...
My 2 year old DVD player has started to give trouble. Initially it would
sometimes refuse to recognise homemade VCDs that I had made - "No Disk"
either when I put them into the machine or part way through playing them.
I thought it was because I was using a different type of blank media. But
then it started doing it with others - homemade music CDs and I think the
other day a commercial CD stopped playing after about halfway. It still
has no problems with DVDs but I primarily bought it for my homemade VCDs.

Any ideas on how I can fix this? I have taken it apart and cleaned the
lens to no effect.

Thanks
Click to expand...
 
In article <c61so2$723cb$1@ID-180484.news.uni-berlin.de>,
mzacharias@yis.us says...
Pioneer's use a dual-wave laser. Apparently that portion of yours is getting
weak, since cleaning did not help.

This probably puts this unit out of the range of an economical repair.

Mark Z.


What exactly does dual wave laser mean?
Click to expand...
 
It means the laser can operate at two different frequencies, one of which is
more compatible with DVD discs, the other more so with audio and CD-ROM type
discs.
Most earlier DVD players wouldn't play CD-R's because the dyes used were
invisible to a red laser. Some of these, like Sony, would still play CD-RW,
but my Onkyo would not, probably a firmware restriction.

Mark Z.

--
Please reply only to Group. I regret this is necessary. Viruses and spam
have rendered my regular e-mail address useless.


"paul" <paulri@email.com> wrote in message
news:MPG.1af057d48c3e6513989685@130.133.1.4...
In article <c61so2$723cb$1@ID-180484.news.uni-berlin.de>,
mzacharias@yis.us says...
Pioneer's use a dual-wave laser. Apparently that portion of yours is
getting
weak, since cleaning did not help.

This probably puts this unit out of the range of an economical repair.

Mark Z.


What exactly does dual wave laser mean?
Click to expand...
 
In article <c65hrl$89pr3$1@ID-180484.news.uni-berlin.de>,
mzacharias@yis.us says...
It means the laser can operate at two different frequencies, one of which is
more compatible with DVD discs, the other more so with audio and CD-ROM type
discs.
Most earlier DVD players wouldn't play CD-R's because the dyes used were
invisible to a red laser. Some of these, like Sony, would still play CD-RW,
but my Onkyo would not, probably a firmware restriction.

Mark Z.


So if my player plays DVDs and not CDs then the laser must work but the
Click to expand...
part that generates the other wavelength does not? ny ideas where to look
for the fault?
 
It's VERY probably still a bad pickup. Better than a 95% chance, I would
say.

Mark Z.

--
Please reply only to Group. I regret this is necessary. Viruses and spam
have rendered my regular e-mail address useless.


"paul" <paulri@email.com> wrote in message
news:MPG.1af1cdf040f1201989686@130.133.1.4...
In article <c65hrl$89pr3$1@ID-180484.news.uni-berlin.de>,
mzacharias@yis.us says...
It means the laser can operate at two different frequencies, one of
which is
more compatible with DVD discs, the other more so with audio and CD-ROM
type
discs.
Most earlier DVD players wouldn't play CD-R's because the dyes used were
invisible to a red laser. Some of these, like Sony, would still play
CD-RW,
but my Onkyo would not, probably a firmware restriction.

Mark Z.


So if my player plays DVDs and not CDs then the laser must work but the
part that generates the other wavelength does not? ny ideas where to look
for the fault?
Click to expand...
 
Paul

No, they usually have two lasers. Changing laser
colour is a complicated business.

Mark's comment about a Sony playing CD-RW but not
CR-R, while an Onkyo would not, is not always as
a result of firmware. The contrast ratio of CD-RW
is much less than CD-R so many CD players (and quite
a few DVD) players can't make sense of it. Some
DVD players get confused and think they are looking
at a DVD, in which case firmware might be a cause.

Colin

paul wrote:

In article <c65hrl$89pr3$1@ID-180484.news.uni-berlin.de>,
mzacharias@yis.us says...

It means the laser can operate at two different frequencies, one of which is
more compatible with DVD discs, the other more so with audio and CD-ROM type
discs.
Most earlier DVD players wouldn't play CD-R's because the dyes used were
invisible to a red laser. Some of these, like Sony, would still play CD-RW,
but my Onkyo would not, probably a firmware restriction.

Mark Z.



So if my player plays DVDs and not CDs then the laser must work but the
part that generates the other wavelength does not? ny ideas where to look
for the fault?
Click to expand...
 
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