Hi Sam,
I have some pics of the inside of the floating tracking and tangient
mirrors found in the old Pioneer LD players if you'd like to add them
to your page.
The shaft the mirror-transducer for the PR7820 is kind of flimsy and
it is prone to drifting. I've seen well over 2 dozen PR7820 players in
the last 18 years and only 2 worked. One was o.k. the other had
horrible video out put. All the others were DOA.
The tracking and tangient mirrors for the LD-V1000 have a hollow brass
shaft filled with rubber that sticks to the mirror at the other end.
This design is more rigid and not as prone to drift with thermal
cycles as the 7820 one was.
If you can give me an e-mail I'd send these and more pics.

prmodel3 writes:

I have some pics of the inside of the floating tracking and tangient
mirrors found in the old Pioneer LD players if you'd like to add them
to your page.

The shaft the mirror-transducer for the PR7820 is kind of flimsy and
it is prone to drifting. I've seen well over 2 dozen PR7820 players in
the last 18 years and only 2 worked. One was o.k. the other had
horrible video out put. All the others were DOA.

I have one that works except for the rotted rubber sleeve on the spindle.
The optics seemed perfect, very stable, slow and single frame worked
perfectly (at least a few months ago last time I tried it).

The tracking and tangient mirrors for the LD-V1000 have a hollow brass
shaft filled with rubber that sticks to the mirror at the other end.
This design is more rigid and not as prone to drift with thermal
cycles as the 7820 one was.

I wonder if those like the LD-660 had a similar design.

If you can give me an e-mail I'd send these and more pics.

Contact me via the Feedback form at
http://www.repairfaq.org/sam/sammenu.htm
and I'll give you an email address via return mail.

Thanks.

--- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

Important: Anything sent to the email address in the message header above is
ignored unless my full name AND either lasers or electronics is included in the
subject line. Or, you can contact me via the Feedback Form in the FAQs.

On Jul 15, 8:08 am, Sam Goldwasser wrote:
writes:
I have some pics of the inside of the floating tracking and tangient
mirrors found in the old Pioneer LD players if you'd like to add them
to your page.
The shaft the mirror-transducer for the PR7820 is kind of flimsy and
it is prone to drifting. I've seen well over 2 dozen PR7820 players in
the last 18 years and only 2 worked. One was o.k. the other had
horrible video out put. All the others were DOA.

I have one that works except for the rotted rubber sleeve on the spindle.
The optics seemed perfect, very stable, slow and single frame worked
perfectly (at least a few months ago last time I tried it).

The tracking and tangient mirrors for the LD-V1000 have a hollow brass
shaft filled with rubber that sticks to the mirror at the other end.
This design is more rigid and not as prone to drift with thermal
cycles as the 7820 one was.

I wonder if those like the LD-660 had a similar design.
All early 80's Pioneer laser players (except 7820) have the same tracking and tangient mirror assembly and this part is interchangeable. The VP1000, PR8210, LD-v1000, LD1100 and LD660 all use the same slider. Even the Magnox 8010 has the same slider as it is basicly the same player as the PR8210.The only difference between models is that the HEADA board and focus motor may have differences.
The windings on the focus motor in an PR8210 have a highr resistance
than the one in an LD-V1000.
If you can give me an e-mail I'd send these and more pics.

Contact me via the Feedback form athttp://www.repairfaq.org/sam/sammenu.htm
and I'll give you an email address via return mail.
Pics comming shortly
Thanks.

--- sam | Sci.Electronics.Repair FAQ:http://www.repairfaq.org/
Repair | Main Table of Contents:http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ:http://www.repairfaq.org/sam/lasersam.htm
| Mirror Sites:http://www.repairfaq.org/REPAIR/F_mirror.html

Important: Anything sent to the email address in the message header above is
ignored unless my full name AND either lasers or electronics is included in the
subject line. Or, you can contact me via the Feedback Form in the FAQs.

prmodel3 wrote:

On Jul 15, 8:08 am, Sam Goldwasser wrote:

writes:

I have some pics of the inside of the floating tracking and tangient
mirrors found in the old Pioneer LD players if you'd like to add them
to your page.
The shaft the mirror-transducer for the PR7820 is kind of flimsy and
it is prone to drifting. I've seen well over 2 dozen PR7820 players in
the last 18 years and only 2 worked. One was o.k. the other had
horrible video out put. All the others were DOA.

I have one that works except for the rotted rubber sleeve on the spindle.
The optics seemed perfect, very stable, slow and single frame worked
perfectly (at least a few months ago last time I tried it).


The tracking and tangient mirrors for the LD-V1000 have a hollow brass
shaft filled with rubber that sticks to the mirror at the other end.
This design is more rigid and not as prone to drift with thermal
cycles as the 7820 one was.

I wonder if those like the LD-660 had a similar design.
All early 80's Pioneer laser players (except 7820) have the same tracking and tangient mirror assembly and this part is interchangeable. The VP1000, PR8210, LD-v1000, LD1100 and LD660 all use the same slider. Even the Magnox 8010 has the same slider as it is basicly the same player as the PR8210.The only difference between models is that the HEADA board and focus motor may have differences.

The windings on the focus motor in an PR8210 have a highr resistance
than the one in an LD-V1000.

If you can give me an e-mail I'd send these and more pics.

Contact me via the Feedback form athttp://www.repairfaq.org/sam/sammenu.htm
and I'll give you an email address via return mail.
Pics comming shortly
Thanks.

--- sam | Sci.Electronics.Repair FAQ:http://www.repairfaq.org/
Repair | Main Table of Contents:http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ:http://www.repairfaq.org/sam/lasersam.htm
| Mirror Sites:http://www.repairfaq.org/REPAIR/F_mirror.html

Important: Anything sent to the email address in the message header above is
ignored unless my full name AND either lasers or electronics is included in the
subject line. Or, you can contact me via the Feedback Form in the FAQs.



You want some real unique laser stuff, i have a pair of Panasonic 12"
Laser disk recorders from a military installation. They were 35K$ new or so.

Bob

----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups
----= East and West-Coast Server Farms - Total Privacy via Encryption =----

prmodel3 writes:

On Jul 15, 8:08 am, Sam Goldwasser wrote:
writes:
I have some pics of the inside of the floating tracking and tangient
mirrors found in the old Pioneer LD players if you'd like to add them
to your page.
The shaft the mirror-transducer for the PR7820 is kind of flimsy and
it is prone to drifting. I've seen well over 2 dozen PR7820 players in
the last 18 years and only 2 worked. One was o.k. the other had
horrible video out put. All the others were DOA.

I have one that works except for the rotted rubber sleeve on the spindle.
The optics seemed perfect, very stable, slow and single frame worked
perfectly (at least a few months ago last time I tried it).

The tracking and tangient mirrors for the LD-V1000 have a hollow brass
shaft filled with rubber that sticks to the mirror at the other end.
This design is more rigid and not as prone to drift with thermal
cycles as the 7820 one was.

I wonder if those like the LD-660 had a similar design.
than the one in an LD-V1000.

All early 80's Pioneer laser players (except 7820) have the same
tracking and tangient mirror assembly and this part is
interchangeable. The VP1000, PR8210, LD-v1000, LD1100 and LD660 all
use the same slider. Even the Magnox 8010 has the same slider as it

Not quite 100 percent. The VP1000 slider has the HeNe laser power supply
voltage multiplier attached to it and the VP1000 uses a different HeNe
laser power supply than the others. But I agree the optics are identical
by visual inspection at least.

is basicly the same player as the PR8210.The only difference between

You mean Magnavox? Some of them I believe are totally different?

models is that the HEADA board and focus motor may have differences.

The windings on the focus motor in an PR8210 have a highr resistance

That's interesting, wonder why?

Yes, I know they are physicall interchangeable. But is the internal
construction identical? I guess it is. But the LD-V1000 has a higher
performance slider motor than the LD-660 even though the overall
mechanism is basically the same.

--- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

Important: Anything sent to the email address in the message header above is
ignored unless my full name AND either lasers or electronics is included in the
subject line. Or, you can contact me via the Feedback Form in the FAQs.

Bob Urz writes:

You want some real unique laser stuff, i have a pair of Panasonic 12"
Laser disk recorders from a military installation. They were 35K$ new or so.

HeHeHeHe.... Might be interested.

But they probably weigh more than the early consumer LaserDisc players!

--- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

Important: Anything sent to the email address in the message header above is
ignored unless my full name AND either lasers or electronics is included in the
subject line. Or, you can contact me via the Feedback Form in the FAQs.

Sam Goldwasser wrote:
Bob Urz writes:


You want some real unique laser stuff, i have a pair of Panasonic 12"
Laser disk recorders from a military installation. They were 35K$ new or so.


HeHeHeHe.... Might be interested.

But they probably weigh more than the early consumer LaserDisc players!

--- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

Important: Anything sent to the email address in the message header above is
ignored unless my full name AND either lasers or electronics is included in the
subject line. Or, you can contact me via the Feedback Form in the FAQs.

Panasonic LQ 4000.

Bob

----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups
----= East and West-Coast Server Farms - Total Privacy via Encryption =----

On Jul 15, 1:23 pm, Bob Urz wrote:
prmodel3wrote:
On Jul 15, 8:08 am, Sam Goldwasser wrote:

writes:

I have some pics of the inside of the floating tracking and tangient
mirrors found in the old Pioneer LD players if you'd like to add them
to your page.
The shaft the mirror-transducer for the PR7820 is kind of flimsy and
it is prone to drifting. I've seen well over 2 dozen PR7820 players in
the last 18 years and only 2 worked. One was o.k. the other had
horrible video out put. All the others were DOA.

I have one that works except for the rotted rubber sleeve on the spindle.
The optics seemed perfect, very stable, slow and single frame worked
perfectly (at least a few months ago last time I tried it).

The tracking and tangient mirrors for the LD-V1000 have a hollow brass
shaft filled with rubber that sticks to the mirror at the other end.
This design is more rigid and not as prone to drift with thermal
cycles as the 7820 one was.

I wonder if those like the LD-660 had a similar design.
All early 80's Pioneer laser players (except 7820) have the same tracking and tangient mirror assembly and this part is interchangeable. The VP1000, PR8210, LD-v1000, LD1100 and LD660 all use the same slider. Even the Magnox 8010 has the same slider as it is basicly the same player as the PR8210.The only difference between models is that the HEADA board and focus motor may have differences.

The windings on the focus motor in an PR8210 have a highr resistance
than the one in an LD-V1000.

If you can give me an e-mail I'd send these and more pics.

Contact me via the Feedback form athttp://www.repairfaq.org/sam/sammenu.htm
and I'll give you an email address via return mail.
Pics comming shortly
Thanks.

--- sam | Sci.Electronics.Repair FAQ:http://www.repairfaq.org/
Repair | Main Table of Contents:http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ:http://www.repairfaq.org/sam/lasersam.htm
| Mirror Sites:http://www.repairfaq.org/REPAIR/F_mirror.html

Important: Anything sent to the email address in the message header above is
ignored unless my full name AND either lasers or electronics is included in the
subject line. Or, you can contact me via the Feedback Form in the FAQs.

You want some real unique laser stuff, i have a pair of Panasonic 12"
Laser disk recorders from a military installation. They were 35K$ new or so.

Bob
Dop you have any blank discs for them?
How hard would it be to copy a CAV disc so that all the frame numbers
match the exact location as on the original disc?
All laser discs have to be fourth generation copies starting from the
film, then tape then glass master disc ,then to the finished copy
thats commercially availible. I really don't think a 5th generation
copy would have that much quality loss as far as the audio annd video
are concerned.
Anyone ever try this? Are there still places that do "one-off's"?
----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==----http://www.newsfeeds.comThe #1 Newsgroup Service in the World! 120,000+ Newsgroups
----= East and West-Coast Server Farms - Total Privacy via Encryption =----- Hide quoted text -

- Show quoted text -