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Plextor PX-760A Out In Japan (Big Pics)

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Plextor PX-760A Out In Japan (Big Pics)

Postby Ian on Fri Feb 24, 2006 9:20 am

According to Akiba PC Hotline, the Plextor PX-760A is out in Japan:

http://www.watch.impress.co.jp/akiba/ho ... x760a.html

Only 15,800 yen ($135US) too. #-o
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"Blu-ray is just a bag of hurt." - Steve Jobs
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Postby Scour on Fri Feb 24, 2006 9:25 am

Hello!

Plextor disappointed me with their last drives, hope this one is better
Benq DW 1640, LG GH-20N, Pioneer BDR-208
Crucial M4, Sandisk SSD, Plextor M5S, Sandisk Ultra Plus, OCZ Petrol 256GB

cu
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Postby dolphinius_rex on Fri Feb 24, 2006 10:57 am

14min for 10x DVD+RDL doesn't seem that fast.... I think some drives are already getting 15min or so with 8x :o
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Postby frank1 on Sun Feb 26, 2006 4:20 am

It looks like YSS has bought 3 of them:
http://homepage2.nifty.com/yss/dvda.htm
So the usual tests by YSS will be coming soon ...




There are also some tests of this PX-760A already published here
[with little translations into english]:

http://dvd-r.jpn.org/PX-760A/index.html

There are also on this wepage detailed photos of the internal boards of both following drives:
PX-760A:
http://dvd-r.jpn.org/PX-760A/board.jpg
PX-755A:
http://dvd-r.jpn.org/PX-755A/board.jpg
Looking carefully at these pics you can see that the "strange wiring" present in the PX-755A has beeen completely removed from the new PX-760A.
For the rest the 2 board look the same (to me at least).
The main chipset seems to be the same in both drives: a Sanyo LC 897496K


So my question is to the experts is:
Why was this wiring which realy looks like "glued on top of the board"
present in the PX-755A ??

Is it in order to prevent:
- the crossflashing 755-->760
- the use of PxScan
- or for some other reason ?
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Postby Ian on Mon Feb 27, 2006 10:53 am

PC Watch also has a few screenshots:

http://pc.watch.impress.co.jp/docs/2006 ... lextor.htm

It looks like they had problems getting the drive to write to DVD+R DL media at 10x.
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Postby dodecahedron on Mon Feb 27, 2006 3:42 pm

tsk tsk tsk...
should've adjusted the vertical scale in CDSpeed

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Postby frank1 on Mon Feb 27, 2006 4:07 pm

YSS has started publishing his tests of the Plextor PX-760A
He has 4 drives !


At the moment there are 9 pages you can access to from this link:
http://homepage2.nifty.com/yss/px760a/px760a_top.htm

For these tests he uses the firmware 1.00 and a mysterious 1.01 (I did not check all graphs !)


And there is a special page
with hardware comparisons between PX-760A and PX-755A:
http://homepage2.nifty.com/yss/px760a/px760a_bunkai.htm[/url]
On this page there are also photos of the PUH's ...



Regarding the boards of both drives the photos YSS links to
show the same thing I posted before:
the strange wiring present in the PX-755A has disappeared fromt he PX-760A:
Board PX-760:
http://members.jcom.home.ne.jp/3232767801/_px760a_ki.jpg
board PX-755:
http://members.jcom.home.ne.jp/3232767801/px755a_0890_ki.jpg
Last edited by frank1 on Sun Mar 05, 2006 1:45 pm, edited 2 times in total.
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Postby frank1 on Sun Mar 05, 2006 1:41 pm

Could somebody tell us if this other comparison that YSS makes here:
http://homepage2.nifty.com/yss/px760a/px760a_bunkai.htm

between the 2 boards is important or not ??


PX-755A
Image


PX-760A
Image
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Postby frank1 on Sun Mar 05, 2006 1:43 pm

frank1 wrote:So my question is to the experts is:
Why was this wiring which realy looks like "glued on top of the board"
present in the PX-755A ??

Is it in order to prevent:
- the crossflashing 755-->760
- the use of PxScan
- or for some other reason ?




Detailed photo of the strange wiring present
on the PX-755A board:


Image
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Postby Dartman on Sun Mar 05, 2006 3:38 pm

IF your brave desolder the wires and find out, otherwise boards look the same to me.
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Postby dolphinius_rex on Sun Mar 05, 2006 5:36 pm

well, the PX-755 is probably just all the PX-760 units that couldn't work properly at top speed... so I wouldn't recommend pulling the wires out, even if it DOES lead to having a PX-760, the results will probably be bad.
Punch Cards -> Paper Tape -> Tape Drive -> 8" Floppy Diskette -> 5 1/4" Floppy Diskette -> 3 1/2" "Flippy" Diskette -> CD-R -> DVD±R -> BD-R

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Postby Dartman on Sun Mar 05, 2006 5:47 pm

Probably right, but if it's non destructive you could just resolder them in place if it didn't work out.
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Postby Justin42 on Sun Mar 05, 2006 6:42 pm

That kind of wiring is somewhat common on 'first runs' of hardware to correct IC layout flaws or the like. (well, by somewhat common, I mean IF a major problem slipped through all the other QA tests and they had a ton they either had to destroy, or manually fix, they will manually fix this way)

I seriously doubt if you did anything to those wires, you'd get anything beyond a non-functional device. Being newer, the 760 just has gotten a 'corrected' board that has the connections properly embedded in the circuitry.
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Postby dolphinius_rex on Sun Mar 05, 2006 7:02 pm

Dartman wrote:Probably right, but if it's non destructive you could just resolder them in place if it didn't work out.


That's a pretty big IF.... and on expensive hardware too! :o
Punch Cards -> Paper Tape -> Tape Drive -> 8" Floppy Diskette -> 5 1/4" Floppy Diskette -> 3 1/2" "Flippy" Diskette -> CD-R -> DVD±R -> BD-R

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Postby Dartman on Sun Mar 05, 2006 8:33 pm

Very true, and neither of us own one so we'll probably never get to test the theory. IF it was cheap enough and I had acces I'd give it a shot but as you said expensive gear to be just hacking away at. I dont mind killing something I only paid 40 or 50 for... :lol:
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Postby Gen-An on Sun Mar 05, 2006 10:46 pm

Dartman wrote:IF your brave desolder the wires and find out, otherwise boards look the same to me.


thiaNine already tried, and it wasn't pretty: http://dvd-r.jpn.org/PX-760A/index2.html#4
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Postby Dartman on Sun Mar 05, 2006 11:00 pm

Yes, but did it come back when he resoldered the wires or did he try? So anyways looks like a bad idea, you know somebody would try it...
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