1 Topic by littlebalup (edited by littlebalup 2022-01-19 13:14:57)

  • Registered: 2022-01-07
  • Posts: 16

Hi,

I found a PX-755A for free smile
It was supposely working the last time it has been used (probably many years ago) but is not. sad

I tested it with both a UGREEN USB3 adapter and a PCI-E IDE adapter card (JMicron JMB363 based) with the same symptoms.
It does not read any disc. Inserting a disc, it searches for a moment and lead with the amber LED blinking twice repeateadly. Sometime I'm hearing the lens kiking the disk. That's the same with both CD's and DVD's.

I cleaned the lens, ribbon cables connexions, etc,  but it didn't helped.

I searched a bit on the net for similar issues without many success. Idem for replacement parts...

Amber LED blinking looks like error code but I didn't find clear info about it.

Any advice would be appreciated. Thanks.

  • Registered: 2014-10-06
  • Posts: 704

My PX760 doesn't like DVD5 - same symptom. Cleaning the lens helps for a week or two...

  • Registered: 2021-03-09
  • Posts: 249

If the drive doesn't read any discs, maybe the lasers don't work anymore? It was similar with my drive (Optiarc CRX880A). First, it did not read CDs (although after disconnecting it from the computer, waiting a while and plugging it back in, it read these CDs again), and then stopped reading CDs altogether. The lasers in this drive have died and unfortunately the drive to the trash can already be used

  • From: Texas
  • Registered: 2018-04-15
  • Posts: 274

Yeah, that's definitely a sign that the laser died. Sorry about that. I've had 3 Plextors in the past do that to me...

Some Plextors have replacement lasers available on AliXpress, but I don't think  that there's one for the 755. There's not one for the 760, so I don't think there's one for the 755.

My Drives: Plextor PX-W5224TA (white, with Syba 5.25" HDD enclosure), ASUS BW-16D1HT (with OWC Mercury Pro enclosure), Plextor Premium-U, Plextor PX-760A (with ByteCC enclosure), Lite-On LH-20A1HX, Kreon TS-H352C, Plextor PX-891SAF, Wii, Wii U

Other Hardware: JVC HR-XVC27U (DVD/VHS VCR), Sony CFD-S50 (CD/Cassette/Radio Boombox), Canon LiDE110 (Scanner)

5 Reply by scsi_wuzzy (edited by scsi_wuzzy 2022-01-21 16:34:14)

  • Registered: 2015-02-24
  • Posts: 101

Larsenv wrote:

Yeah, that's definitely a sign that the laser died. Sorry about that. I've had 3 Plextors in the past do that to me...

Some Plextors have replacement lasers available on AliXpress, but I don't think  that there's one for the 755. There's not one for the 760, so I don't think there's one for the 755.

Has the SF-DS10 supply dried up? I haven't done a laser on one of these drives, but I recall a thread on MyCE from maybe 5-6 years ago where someone discussed replacing the SF-DS10K OPU with SF-DS10L and SF-DS10N OPUs.

Actually, I guess maybe they were just sourcing those parts from other drives, and not purchasing new OPUs. It looks like the thread is here at https://club.myce.com/t/replacement-for … a/314376/4, and they mention the L and N variants are in various Lite-On, Sanyo, and NEC drives.

  • Registered: 2022-01-07
  • Posts: 16

scsi_wuzzy wrote:

Has the SF-DS10 supply dried up? I haven't done a laser on one of these drives, but I recall a thread on MyCE from maybe 5-6 years ago where someone discussed replacing the SF-DS10K OPU with SF-DS10L and SF-DS10N OPUs.

Actually, I guess maybe they were just sourcing those parts from other drives, and not purchasing new OPUs. It looks like the thread is here at https://club.myce.com/t/replacement-for … a/314376/4, and they mention the L and N variants are in various Lite-On, Sanyo, and NEC drives.

Really interesting I'll have a look on that. Thx.

  • Registered: 2022-01-07
  • Posts: 16

I found and ordered one SF-DS10L from chineese store. It was the only one remaining... Hopping it's not a poor clone.
I seen some SF-DS10HL that look almost similar.
If it doen't work, I'll look for a liteon, optiarc or whatever donor drive.

  • Registered: 2022-01-07
  • Posts: 16

Awaiting to receive the new OPU from China, I found a working NEC ND-3550A donor with a SF-DS10N in it. I swapped the OPU and the PX-755 is back to life. smile
I performed the Self-Test Diagnostics with success. However it's not perfect as it fails to read some DVD's. No issues with CD's so far. Some laser adjustments are probably necessary but I don't kow how.

Anyway I found a good source to share of NEC / Optiarc or LiteOn donor drives for PX-755/760 (credits to Blackened2687):
https%3A%2F%2Fforum.cdrinfo.pl%2Fattach … e_v1.3.pdf
https%3A%2F%2Fforum.cdrinfo.pl%2Fattach … e_v1.3.pdf

  • Registered: 2015-02-24
  • Posts: 101

littlebalup wrote:

Awaiting to receive the new OPU from China, I found a working NEC ND-3550A donor with a SF-DS10N in it. I swapped the OPU and the PX-755 is back to life. smile
I performed the Self-Test Diagnostics with success. However it's not perfect as it fails to read some DVD's. No issues with CD's so far. Some laser adjustments are probably necessary but I don't kow how.

Glad to hear it worked! I think one of the best arguments for owning a PX-755 or PX-760 over some of the Plextors is that OPUs are actually available for the 755 and 760 (either in the form of donor drives or on AliExpress). That same MyCE thread I linked earlier has a discussion about the inability to find OPUs compatible with the PX-716, so, unlike the 755 and 760, the 716 is basically trash if the OPU dies. A shame!


littlebalup wrote:

Anyway I found a good source to share of NEC / Optiarc or LiteOn donor drives for PX-755/760 (credits to Blackened2687):
https%3A%2F%2Fforum.cdrinfo.pl%2Fattach … e_v1.3.pdf
https%3A%2F%2Fforum.cdrinfo.pl%2Fattach … e_v1.3.pdf

Something happened to those links. I believe the correct ones are:
https://forum.cdrinfo.pl/attachments/f1 … e_v1.3.pdf
and
https://forum.cdrinfo.pl/attachments/f1 … e_v1.3.pdf

Yes, CDRinfo.pl has a great deal of useful information for optical drives. I've found lots of good info on crossflashing, repairing, etc. Lots of great stuff on MyCE too. Both of those places have been home to a number of ODD experts over the years, so there's everything from low level discussions of dumping raw CIRC data using a modified CD player to higher level stuff like help with burning software.