Pioneer Laser Pick-up PWY1006

WAR415 · 20th December 2012, 05:38 PM

A friend of mine has a Pioneer PD-71 that needs a new laser pick-up and can not locate one.
If there is no replacement available would anybody know what Laser Diode Pioneer used for the PWY1006. Toshiba? Rhom? Samsung? Sanyo?

living · 20th December 2012, 06:21 PM

Pioneer "PWY" series laser head, and Sony series "KSS" laser head, most of them are using as same as Rohm "RLD78mya1" type laser diode

WAR415 · 20th December 2012, 06:24 PM

You my friend have been most certainly helpful!!! Thanks again.

living · 20th December 2012, 06:37 PM

my pleasure！haha...

piotrekdb9 · 20th January 2013, 09:28 PM

I'm using the same pick up in my pd-9300 so I'm interested in the topic. WAR can you give me any news of trying get your friends laser restored? Maybe he tried to replace the diode? Is it really possible to change the diode in this pick up? Has he already bought RLD78mya1 and does it fit to the whole pick up?

Sorry for many questions and for my english

stephensank · 20th January 2013, 11:48 PM

It is EXTREMELY rare for this vintage of Pioneer laser, PWY1004/1006/1010/etc., to actually go bad in any way. The lenses do fall out, but that is a simple matter with carefull reinstallation with a tiny bit of silicone glue. Other than this, EVERY single one of these lasers I've dealt with, and the number of them is likely in the hundreds by now, has, at worst, simply needed to have the optical diffraction grating realigned properly. Takes a delicate touch & practice to do right, but totally doable by anyone with an oscilloscope.

piotrekdb9 · 21st January 2013, 09:09 AM

Thanks for reply - you've made my day

Maybe you could answer to last of my questions - does the rhom RLD78mya1 will fit? I'm from Poland and the nearest country I've found the laser diode in is UK. It won't be easy for me to get one of them ;/

stephensank · 22nd January 2013, 01:33 AM

I have never had any reason to investigate what laser diodes are used in any particular laser pickup. Unless you have measured an inability to get to 0.1mW output with an optical laser power meter, without going to an extreme end on the laser's adj pot, then you don't need a new laser diode for the unit.

piotrekdb9 · 22nd January 2013, 08:26 AM

Ok, now I understand. So now is the moment to buy an oscilloscope and get know how to use it... or give my cd to someone who already got that knowledge. Thanks for hepling me!

20th December 2012, 05:38 PM	#1
WAR415 diyAudio Member Join Date: Apr 2008	Pioneer Laser Pick-up PWY1006 A friend of mine has a Pioneer PD-71 that needs a new laser pick-up and can not locate one. If there is no replacement available would anybody know what Laser Diode Pioneer used for the PWY1006. Toshiba? Rhom? Samsung? Sanyo?

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20th December 2012, 06:21 PM	#2
living diyAudio Member Join Date: Dec 2012	Pioneer "PWY" series laser head, and Sony series "KSS" laser head, most of them are using as same as Rohm "RLD78mya1" type laser diode

20th December 2012, 06:24 PM	#3
WAR415 diyAudio Member Join Date: Apr 2008	You my friend have been most certainly helpful!!! Thanks again.

20th December 2012, 06:37 PM	#4
living diyAudio Member Join Date: Dec 2012	my pleasure！haha...

20th January 2013, 09:28 PM	#5
piotrekdb9 diyAudio Member Join Date: Jan 2013	I'm using the same pick up in my pd-9300 so I'm interested in the topic. WAR can you give me any news of trying get your friends laser restored? Maybe he tried to replace the diode? Is it really possible to change the diode in this pick up? Has he already bought RLD78mya1 and does it fit to the whole pick up? Sorry for many questions and for my english

20th January 2013, 11:48 PM	#6
stephensank diyAudio Member Join Date: Oct 2006	It is EXTREMELY rare for this vintage of Pioneer laser, PWY1004/1006/1010/etc., to actually go bad in any way. The lenses do fall out, but that is a simple matter with carefull reinstallation with a tiny bit of silicone glue. Other than this, EVERY single one of these lasers I've dealt with, and the number of them is likely in the hundreds by now, has, at worst, simply needed to have the optical diffraction grating realigned properly. Takes a delicate touch & practice to do right, but totally doable by anyone with an oscilloscope.

21st January 2013, 09:09 AM	#7
piotrekdb9 diyAudio Member Join Date: Jan 2013	Thanks for reply - you've made my day Maybe you could answer to last of my questions - does the rhom RLD78mya1 will fit? I'm from Poland and the nearest country I've found the laser diode in is UK. It won't be easy for me to get one of them ;/

22nd January 2013, 01:33 AM	#8
stephensank diyAudio Member Join Date: Oct 2006	I have never had any reason to investigate what laser diodes are used in any particular laser pickup. Unless you have measured an inability to get to 0.1mW output with an optical laser power meter, without going to an extreme end on the laser's adj pot, then you don't need a new laser diode for the unit.

22nd January 2013, 08:26 AM	#9
piotrekdb9 diyAudio Member Join Date: Jan 2013	Ok, now I understand. So now is the moment to buy an oscilloscope and get know how to use it... or give my cd to someone who already got that knowledge. Thanks for hepling me!