Plextor recorder fails


G

George Valkov

Hello everyone!

My current Plextor recorder failed just like the previous ones! This is my
third PX-760A, and I had one PX-716A before that, which also failed. I am
bored from using the warranty services, every time they replace my recorder,
it works a few months and then fails.
First symptoms are that it stops burning DVD+RW and DVD-RW disks, saying:
"Medium error, Power Calibration failed" even with new medium.

I always buy the most expensive disks - only Verbatim and Plextor media. I
clean my computer from dust, I use the recorder vary rare - I haven't burned
more that 15 CDs and DVD and yet this recorder failed again!


Does anyone else have any problems with Plextor recorders? Can I do anything
to make my recorder live longer?


George Valkov
 
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R

RJK

FWIW

Fit a surge protector, ....
....and don't forget to surge protect your telephone line.

....and
I would suspect power supply problems, particularly inadequate quality or
unsatisfactory, or if you prefer the correct term "insufficient interference
in electrical connections", (particularly "negative" connections), both
inside and outside the PC.

Especially, poor interference between between male/female "negative"
connectors can cause excess current / loading in the device.
Building / mains electricity supply negative connections that are
unsatisfactory, (unsecure / not tightly secure), have the effect of placing
devices under heavy load and WILL cause premature failure of devices esp.
transformers.

Example, personal experience -
A cousin complained that his games console external mains power transformer
had failed three times and had been replaced under warranty three times.
The fourth time, I drove into town and investigated and quickly discovered
that :-

The 13amp, (UK by the way), mains socket, into which he had been plugging in
the aforementioned transformer had a neutral connection at its' consumer
unit end, (fuseboard if you prefer), that was not secure i.e. 2 securing
screws in the common netral block had missed the 2.5mm copper core
completely - it was just sort of "wound around" another neutral, and hadn't
gone in far enough - if you see what I mean.

regards, Richard
 
G

George Valkov

|A slightly iffy memory stick can also cause recording to fail

Perhaps that is not the case, because it would also cause system
instabillity. The computer is very stable. And the recorder is getting worse
every day.

Thank You for the replay!



George Valkov


|
| | > Hello everyone!
| >
| > My current Plextor recorder failed just like the previous ones! This is
my
| > third PX-760A, and I had one PX-716A before that, which also failed. I
am
| > bored from using the warranty services, every time they replace my
| > recorder,
| > it works a few months and then fails.
| > First symptoms are that it stops burning DVD+RW and DVD-RW disks,
saying:
| > "Medium error, Power Calibration failed" even with new medium.
| >
| > I always buy the most expensive disks - only Verbatim and Plextor media.
I
| > clean my computer from dust, I use the recorder vary rare - I haven't
| > burned
| > more that 15 CDs and DVD and yet this recorder failed again!
| >
| >
| > Does anyone else have any problems with Plextor recorders? Can I do
| > anything
| > to make my recorder live longer?
| >
| >
| > George Valkov
| >
| >
|
|
 
G

George Valkov

:
| I've got a Plextor thats about 6 years old. What kind of ventilation is
| on the case its mounted in and hoes it have airflow around it?

Well, have a look and tell me Your opinion!
http://gfc.my.contact.bg/tests/pc-inside/01.jpg
http://gfc.my.contact.bg/tests/pc-inside/02.jpg
http://gfc.my.contact.bg/tests/pc-inside/03.jpg
http://gfc.my.contact.bg/tests/pc-inside/04.jpg


George Valkov


|
| George Valkov wrote:
| > Hello everyone!
| >
| > My current Plextor recorder failed just like the previous ones! This is
my
| > third PX-760A, and I had one PX-716A before that, which also failed. I
am
| > bored from using the warranty services, every time they replace my
recorder,
| > it works a few months and then fails.
| > First symptoms are that it stops burning DVD+RW and DVD-RW disks,
saying:
| > "Medium error, Power Calibration failed" even with new medium.
| >
| > I always buy the most expensive disks - only Verbatim and Plextor media.
I
| > clean my computer from dust, I use the recorder vary rare - I haven't
burned
| > more that 15 CDs and DVD and yet this recorder failed again!
| >
| >
| > Does anyone else have any problems with Plextor recorders? Can I do
anything
| > to make my recorder live longer?
| >
| >
| > George Valkov
| >
| >
|
 
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G

George Valkov

Hello Richard, and thank You very much for sharing with me your personal
experience!
I have tried to explain and show the situation around here in details.
Please read it and tell me Your opinion!

First, You may have a look at my PC if you like:
http://gfc.my.contact.bg/tests/pc-inside/01.jpg
http://gfc.my.contact.bg/tests/pc-inside/02.jpg
http://gfc.my.contact.bg/tests/pc-inside/03.jpg
http://gfc.my.contact.bg/tests/pc-inside/04.jpg


----- Original Message -----
From: "RJK" <[email protected]>
Newsgroups: microsoft.public.windowsxp.hardware
Sent: Tuesday, August 28, 2007 4:37 PM
Subject: Re: Plextor recorder fails


| FWIW
|
| Fit a surge protector, ....
| ...and don't forget to surge protect your telephone line.


I'll try to find and get one!

By the way I've been thinking about an UPS many times.
I've been spending a long time for new monitor, would it
be worth to buy an UPS instead? If that means no more
broken recorders and headache, then yes!

So far the recorded Plextor media disks are all excellent quality -
an average test example for DVD+R burned at 16x:
Avg Max Total
PIE 0.83 9 14822
POE 0.08 170 10715
POF - - 0


But when the recorder goes a few months old, first it stops burning DVD+/-RW
disks (while continuing to record on DVD+/-R with the same excellent
quality)... And soon it will stop writing on anything (that's my experience
with the previous ones).

|
| ...and
| I would suspect power supply problems, particularly inadequate quality or
| unsatisfactory, or if you prefer the correct term "insufficient
interference
| in electrical connections", (particularly "negative" connections), both
| inside and outside the PC.

||| particularly "negative" connections
Does that mean the COMMON / GROUND (GND) connection?

As you can see on the pictures of my computer, I have no place inside the
case to fit the power supply, so it is mounted just behind the PC's case.
But I have added a thick and short wire to connect the chassis of the power
supply to the PC's case. The wire is soldered to terminals on both sides
that are screwed tight. Could this cause any problems?

The "ZERO" wire on the Power network of the house is grounded outside - this
prevented a lot of accidents. About 5 or 6 years ago, before we added the
local ground there once was a long-time (a few minutes) power surge from
311V instead of 220V and almost of the electronics in the house were
damaged.

We still have many power failures for less than half of a second. Usually
once every day. And it's so short in time that the computer will just reboot
instead of turn off. The CD/TAPE/FM player is very sensitive and will reset
as well so I know it is a power failure and not a PC failure. But there were
not any power failures while recording a disk.


Yes, I had thought that problems could be caused by the power supply. So
before attaching my current recorder to the computer (when it was returned
to replace the old one in February 2007), I first went to a hardware store
and purchased their most expensive and powerful power-supply: FORTRON 400W
output power, a hard and massive unit, with a big fan. It cost me about 63
Euro. The specification from the official web-site is here:
http://www.fsp-group.com.tw/english/1_product/2_detail.asp?mainid=1&fid=52&proid=214

Then I did measure the input EMF current consumed by the power supply, which
multiplied by 230V gave me about less than 200W (during 3D mark benchmark).

Today I used a digital multimeter and an
analogue oscilloscope to measure the DC (--)
and differential (~) pulse peaks on the power supply.

5.04V *(+/- 0.06V noise peaks**)
12.50V *(+/- 0.25V noise peaks**)

* measured from a power socket to chassis
** when recorder's laser is activated and the
2 hard-disks are forced to search random data
dir /s



| Especially, poor interference between between male/female "negative"
| connectors can cause excess current / loading in the device.
| Building / mains electricity supply negative connections that are
| unsatisfactory, (unsecure / not tightly secure), have the effect of
placing
| devices under heavy load and WILL cause premature failure of devices esp.
| transformers.

The power connector of the DVD recorder is tight. The connectors of the two
HDDs are not much, but that's due to the HDDs' power sockets are thinner. So
if anything should fail or goes broken, I guess that should be a hard-disk,
and not the DVD recorder.

The computer is very stable, I don't have any crashes, performance is
excellent.
RAM config is relaxed to the most stable. CPU temperature on touch is not
hot - feels colder than the hard-disks. It is over-clocked (from 11*133MHz
to
11*166MHz), which is far away from the point of minor instabilities that
begin at (11*181MHz - measured with long memory diagnostics and 3D
benchmarks).


|
| Example, personal experience -
| A cousin complained that his games console external mains power
transformer
| had failed three times and had been replaced under warranty three times.
| The fourth time, I drove into town and investigated and quickly discovered
| that :-
|
| The 13amp, (UK by the way), mains socket, into which he had been plugging
in
| the aforementioned transformer had a neutral connection at its' consumer
| unit end, (fuseboard if you prefer), that was not secure i.e. 2 securing
| screws in the common netral block had missed the 2.5mm copper core
| completely - it was just sort of "wound around" another neutral, and
hadn't
| gone in far enough - if you see what I mean.

I'm getting the picture :)

Me and my Father have created the electrical installation of the entire
house. We also added solid grounding to the "ZERO" wire. I have personally
created all of the connection-blocks and outlets, that are connecting from
the power network on the wall to the PC and the other devices around it. All
connection-blocks and sockets have the "GROUND" wire properly connected. All
wires are soldered before screw-tightened (just in case).

The FTP LAN cables PC-Router-DSL modem all have the metallic envelope
grounded.


Please excuse me, if I made mistakes in the technical English language... I
have technical knowledge in Electronics, but my technical English is not
good, so I'm trying to keep up with a dictionary in hand :)
Greetings from Bulgaria!


George Valkov



| regards, Richard
|
|
| | > Hello everyone!
| >
| > My current Plextor recorder failed just like the previous ones! This is
my
| > third PX-760A, and I had one PX-716A before that, which also failed. I
am
| > bored from using the warranty services, every time they replace my
| > recorder,
| > it works a few months and then fails.
| > First symptoms are that it stops burning DVD+RW and DVD-RW disks,
saying:
| > "Medium error, Power Calibration failed" even with new medium.
| >
| > I always buy the most expensive disks - only Verbatim and Plextor media.
I
| > clean my computer from dust, I use the recorder vary rare - I haven't
| > burned
| > more that 15 CDs and DVD and yet this recorder failed again!
| >
| >
| > Does anyone else have any problems with Plextor recorders? Can I do
| > anything
| > to make my recorder live longer?
| >
| >
| > George Valkov
| >
| >
|
|
 
R

RJK

After viewing your *.jpg's / system box, I stand by my original instincts
!

Your system box has, I suspect, had a LOT of "plugging in and unplugging,
.....of plugs ! " ...particularly the molex connectors. I suspect that pin/s
in your 4 pin molex connectors are simply not a tight enough fit. Lots of
plugging an unplugging, and plugging into different drives, can result in
connections that are not a tight enough fit, and this can cause all sorts of
adverse effects.

Try fitting new molex connectors, ...if you can get your hands on the proper
crimping tool. ....severed and joined wires, despite major effort in doing
a safe, throrough, and tidy job, always look a mess.

regards,Richard
 
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G

Gerhard

After viewing your *.jpg's / system box, I stand by my original instincts
!

Your system box has, I suspect, had a LOT of "plugging in and unplugging,
....of plugs ! " ...particularly the molex connectors. I suspect that pin/s
in your 4 pin molex connectors are simply not a tight enough fit. Lots of
plugging an unplugging, and plugging into different drives, can result in
connections that are not a tight enough fit, and this can cause all sorts of
adverse effects.

Try fitting new molex connectors, ...if you can get your hands on the proper
crimping tool. ....severed and joined wires, despite major effort in doing
a safe, throrough, and tidy job, always look a mess.

regards,Richard

George,

Last year and only after a few month of usage I've had the same issue
with my PX-760A. Then I've got an replacement, which first worked
well, but now got the same issue. I do not burn many DVDs, and my
system runs cool and clean. But my PC is very often 24/7 online. May
be this power on duration is the issue what somehow kills it after a
certain time. However, I guess there is not much we can do about
this ...

Best regards,
Gerhard
 

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