I have a 95 day old (90 day warranty) DVD player that intermittently
refuses to read dvds. Typically, after 4 or 5 loading tries, the disc
is finally recognized. When it fails, the LED lights up, the carriage
moves back and forth many times, the tv shows loading, and then
finally gives a no-disc signal on the tv. After I removed the cover,
nothing changed. I have pushed on all the cables and sockets, and
also pushed on the various PWBs, all with no changes noted.

Any suggestions besides adding to the next grbage collection.

H. R.(Bob) Hofmann

"hr(bob) " wrote in message
oups.com...

I have a 95 day old (90 day warranty) DVD player that intermittently
refuses to read dvds. Typically, after 4 or 5 loading tries, the disc
is finally recognized. When it fails, the LED lights up, the carriage
moves back and forth many times, the tv shows loading, and then
finally gives a no-disc signal on the tv. After I removed the cover,
nothing changed. I have pushed on all the cables and sockets, and
also pushed on the various PWBs, all with no changes noted.

Google for (repair your own dvd player)

"Homer J Simpson" wrote in message
news:ahTAh.76516$Y6.556@edtnps89...

"hr(bob) " wrote in message
oups.com...

I have a 95 day old (90 day warranty) DVD player that intermittently
refuses to read dvds. Typically, after 4 or 5 loading tries, the disc
is finally recognized. When it fails, the LED lights up, the carriage
moves back and forth many times, the tv shows loading, and then
finally gives a no-disc signal on the tv. After I removed the cover,
nothing changed. I have pushed on all the cables and sockets, and
also pushed on the various PWBs, all with no changes noted.

Google for (repair your own dvd player)


The very first test for any DVD player that won't read DVD discs, is to try
a CD in it. In general ( although I wouldn't suggest in 100% of cases ) a
player that will play CD's, but not DVD's, has a defective laser. If it
won't play either medium, this usually indicates a faulty mpeg board (
general name for the data decoding and processing board ). From experience,
many of the cheapo brands employ a standard IDE computer-type drive, and
these seem to fair much less well in domestic players, than they do in
computers, particularly in the case of DVD recorders. It is not unusual for
DVD players to fail this early in their life. I replace many lasers and deck
assemblies in players much less than a year old, but it's not usually an
issue, as the manufacturer's warranty is normally at least 1 year. Is this
one of yours second hand, as 90 days warranty doesn't seem right unless it
is ?

Arfa

On Feb 14, 11:53 pm, "hr(bob) "
wrote:
I have a 95 day old (90 day warranty) DVD player that intermittently
refuses to read dvds. Typically, after 4 or 5 loading tries, the disc
is finally recognized. When it fails, the LED lights up, the carriage
moves back and forth many times, the tv shows loading, and then
finally gives a no-disc signal on the tv. After I removed the cover,
nothing changed. I have pushed on all the cables and sockets, and
also pushed on the various PWBs, all with no changes noted.

Any suggestions besides adding to the next grbage collection.

H. R.(Bob) Hofmann

You may want to check out the spindle motor. Common failure with
requent use.

A friend of mine suckered me into making an attempt to revive a
Panasonic DVD-RV26 player recently. Did some research on the error
code (HO2) which was regarded to refer to pickup failure. Watching it
during spin up something didn't look quite right and there seemed to
be a little too much resistance when turning the disc platter
manually. I don't work on much consumer stuff so I don't have a stock
of motors to swap out to verify the problem. So I removed the motor
and popped the back off. Cleaned the shaft, bushings and brushes.
Lubed the bushings, assembled it and tossed it back in.
Took right off.

So I tell him I basically put a band-aid on the problem and if it
starts acting up again the motor needs replacing.

"boardjunkie" wrote in message
oups.com...
On Feb 14, 11:53 pm, "hr(bob) "
wrote:
I have a 95 day old (90 day warranty) DVD player that intermittently
refuses to read dvds. Typically, after 4 or 5 loading tries, the disc
is finally recognized. When it fails, the LED lights up, the carriage
moves back and forth many times, the tv shows loading, and then
finally gives a no-disc signal on the tv. After I removed the cover,
nothing changed. I have pushed on all the cables and sockets, and
also pushed on the various PWBs, all with no changes noted.

Any suggestions besides adding to the next grbage collection.

H. R.(Bob) Hofmann

You may want to check out the spindle motor. Common failure with
requent use.

A friend of mine suckered me into making an attempt to revive a
Panasonic DVD-RV26 player recently. Did some research on the error
code (HO2) which was regarded to refer to pickup failure. Watching it
during spin up something didn't look quite right and there seemed to
be a little too much resistance when turning the disc platter
manually. I don't work on much consumer stuff so I don't have a stock
of motors to swap out to verify the problem. So I removed the motor
and popped the back off. Cleaned the shaft, bushings and brushes.
Lubed the bushings, assembled it and tossed it back in.
Took right off.

So I tell him I basically put a band-aid on the problem and if it
starts acting up again the motor needs replacing.


Error message " H02 " refers specifically to spindle motor failure on all
models of Panasonic. It does not indicate pickup failure, so wherever you
found that little gem on the 'net, it's wrong. The spindle motor for Pans
comes pre-assembled onto a subdeck, with the turntable already fitted, as
the turntable height is critical to correct operation.

Arfa

On Feb 14, 10:53 pm, "hr(bob) "
wrote:
I have a 95 day old (90 day warranty) DVD player that intermittently
refuses to read dvds. Typically, after 4 or 5 loading tries, the disc
is finally recognized. When it fails, the LED lights up, the carriage
moves back and forth many times, the tv shows loading, and then
finally gives a no-disc signal on the tv. After I removed the cover,
nothing changed. I have pushed on all the cables and sockets, and
also pushed on the various PWBs, all with no changes noted.

Any suggestions besides adding to the next grbage collection.

H. R.(Bob) Hofmann

Now the unit is working reliably again, so I put the cover back on and
we'll see what happens. The warranty was for 90 days parts and
labor. I have it here in CO at my condo, and it was only used a few
times as I was back in IL for most of the 90 days. Not worth worrying
about, but thanx for the comments. I'll look at the dvd repair site
to get some ideas if it happens again.

H. R.(Bob) Hofmann

On Thu, 15 Feb 2007 10:18:22 GMT, "Arfa Daily"
put finger to keyboard and composed:

From experience,
many of the cheapo brands employ a standard IDE computer-type drive,...

I'm sure I've only seen a tiny fraction of the players that you have,
but I haven't yet encountered an IDE interface in anything other than
a DVDR. It seems to me that a really cheap design would try to move
all the expensive "smarts" to the encoder PCB. Lately I've been
hacking my Tevion player (Sunplus chipset). The MPEG decoder chip does
everything including RF and servo functions (and DivX/USB/card
reader). Only an additional 5-ch motor control chip is needed to
control the spin/tray/sled motors and the focus/tracking coils. This
is despite the SPHE8202/8281 chip's ability to support ATAPI. Other
designs based on the popular MT13x9 Mediatek chipsets also seem to
prefer this approach.

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

"Franc Zabkar" wrote in message
...
On Thu, 15 Feb 2007 10:18:22 GMT, "Arfa Daily"
put finger to keyboard and composed:

From experience,
many of the cheapo brands employ a standard IDE computer-type drive,...

I'm sure I've only seen a tiny fraction of the players that you have,
but I haven't yet encountered an IDE interface in anything other than
a DVDR. It seems to me that a really cheap design would try to move
all the expensive "smarts" to the encoder PCB. Lately I've been
hacking my Tevion player (Sunplus chipset). The MPEG decoder chip does
everything including RF and servo functions (and DivX/USB/card
reader). Only an additional 5-ch motor control chip is needed to
control the spin/tray/sled motors and the focus/tracking coils. This
is despite the SPHE8202/8281 chip's ability to support ATAPI. Other
designs based on the popular MT13x9 Mediatek chipsets also seem to
prefer this approach.

- Franc Zabkar
--

Hi Franc

I do a lot of work for a couple of companies who behave as repair agents for
the insurance companies that act to handle the guarantees for some of the
big supermarkets and "bonanza-type" electronics retail outlets. For the most
part, the cheap end stuff that they sell are just Korean or Chinese
'no-names', and it's not at all uncommon for them to employ just bog
standard computer DVD drives, which are complete with a drive electronics
board that handles all of the getting-off-the-disc of the data and primary
processing of it. A comparitively simple interface and decoding board is all
that's then necessary. I would guess that these drives are now so cheap -
and some of the ones I see come from quite famous manufacturers - that it
makes financial sense to just buy them in, and glue them together with some
simple interface electronics, to create a complete player that costs little
more than the retail price of a basic drive to go in your computer.

Arfa