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Guest
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Post subject: Re: Fixing laser alignment without equipment? Posted: 26 Mar 2014, 00:30 |
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You could try. Just realize that any mechanical adjustment you make will be compromised by the tilt servo. Best to try the electrical adjustment first
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Guest
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Post subject: Re: Fixing laser alignment without equipment? Posted: 26 Mar 2014, 03:02 |
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In my limited experience with tweaking pots on an LD player they don't make much difference if any, Unless it is the video output level.
I think mechanical adjustments will certainly make more of a difference.
You could try moving the laser carriage up or down a little with your finger while it is operating and see what effect that has on the picture.
I have a Panasonic LX-1000 which has crosstalk on CLV unfortunately I haven't been able to do anything about it as no one seems to have a service manual for it.
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Guest
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Post subject: Re: Fixing laser alignment without equipment? Posted: 26 Mar 2014, 03:09 |
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ruinatokyo wrote: thanks for the reply!
do you mean digital tracking or similar by "electrical adjustment"? (I figured if it was laser power, side A would have issues as well).
i googled around all morning but didn't come across any info on what exactly i should adjust.
the laser is on an epsilon U assembly if i'm not mistaken. would the potentiometers to turn be on the laser assembly itself? i don't have an r7g repair manual so i feel a little blind flying. The electrical adjustment is on the main circuit board. The pots are clearly labled for A or B side tilt. Again, I wouldn't do any mechanical adjustments because as long as the tilt servo is active it will counter any mechanical adjustment.
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Guest
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Post subject: Re: Fixing laser alignment without equipment? Posted: 26 Mar 2014, 03:11 |
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whitesnake wrote: In my limited experience with tweaking pots on an LD player they don't make much difference if any, Unless it is the video output level.
I think mechanical adjustments will certainly make more of a difference.
You could try moving the laser carriage up or down a little with your finger while it is operating and see what effect that has on the picture.
I have a Panasonic LX-1000 which has crosstalk on CLV unfortunately I haven't been able to do anything about it as no one seems to have a service manual for it. Mechanical adjustment might, but as I stated unless it's in the service mode with the tilt servo turned off the servo will counter any mechanical adjustments.
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Guest
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Post subject: Re: Fixing laser alignment without equipment? Posted: 26 Mar 2014, 03:15 |
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ldservice wrote: whitesnake wrote: In my limited experience with tweaking pots on an LD player they don't make much difference if any, Unless it is the video output level.
I think mechanical adjustments will certainly make more of a difference.
You could try moving the laser carriage up or down a little with your finger while it is operating and see what effect that has on the picture.
I have a Panasonic LX-1000 which has crosstalk on CLV unfortunately I haven't been able to do anything about it as no one seems to have a service manual for it. Mechanical adjustment might, but as I stated unless it's in the service mode with the tilt servo turned off the servo will counter any mechanical adjustments. I guess you need a special remote for that?
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Guest
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Post subject: Re: Fixing laser alignment without equipment? Posted: 26 Mar 2014, 03:18 |
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whitesnake wrote: ldservice wrote: whitesnake wrote: In my limited experience with tweaking pots on an LD player they don't make much difference if any, Unless it is the video output level.
I think mechanical adjustments will certainly make more of a difference.
You could try moving the laser carriage up or down a little with your finger while it is operating and see what effect that has on the picture.
I have a Panasonic LX-1000 which has crosstalk on CLV unfortunately I haven't been able to do anything about it as no one seems to have a service manual for it. Mechanical adjustment might, but as I stated unless it's in the service mode with the tilt servo turned off the servo will counter any mechanical adjustments. I guess you need some special remote for that? Yes, a service remote. I think it's no longer available and when it was it was only able to be ordered after getting permission from the Pioneer tech department (as in you had to be an authorized service center). There were worries (Pioneer is paranoid) that with the service remote DVD players could be hacked for region free play.
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tasuke
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Post subject: Re: Fixing laser alignment without equipment? Posted: 26 Mar 2014, 16:33 |
Absolute fan |
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Joined: 03 Aug 2013, 17:32 Posts: 1573 Location: OREGON, U.S. Has thanked: 3 times Been thanked: 136 times
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ldservice wrote: Yes, a service remote. I think it's no longer available and when it was it was only able to be ordered after getting permission from the Pioneer tech department (as in you had to be an authorized service center). There were worries (Pioneer is paranoid) that with the service remote DVD players could be hacked for region free play. i heard that it is possible to reset most earlier PIO DVDPs to other regions simply by entering a certain menu and inputting a region code using any garden-variety PIO DVD remote. i was going to try it on my DV-37 one of these days, since i've a single JPN disc to try out anyway...
_________________ * PIONEER CLD-3030 Compatible LDP (1988) (( http://forum.lddb.com/viewtopic.php?f=23&t=3094 ))
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Guest
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Post subject: Re: Fixing laser alignment without equipment? Posted: 27 Mar 2014, 00:37 |
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I think we really need some kind of basic guide for alignment and setup of popular laserdisc players for people that don't have all the required hardware.
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ruinatokyo
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Post subject: Re: Fixing laser alignment without equipment? Posted: 27 Mar 2014, 01:01 |
Serious fan |
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Joined: 17 Mar 2014, 07:26 Posts: 165 Location: Japan Has thanked: 39 times Been thanked: 6 times
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whitesnake that would be great i'm going to try taking pics of the main board and such and figure out what's what tonight.
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ruinatokyo
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Post subject: Re: Fixing laser alignment without equipment? Posted: 27 Mar 2014, 11:54 |
Serious fan |
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Joined: 17 Mar 2014, 07:26 Posts: 165 Location: Japan Has thanked: 39 times Been thanked: 6 times
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hey everyone, thanks for the feedback. i opened it and fixed it in 10 minutes. 10 degrees clockwise did nothing, another 10 made it worse, so about 25 degrees counter-clockwise and now zero crosstalk on both sides, beautiful. i took a pic just to show how well-documented the main board is, a lifesaver!
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