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Pioneer DVL - 909 snag fault
https://forum.lddb.com/viewtopic.php?f=23&t=7162
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Author:  laserbite34 [ 19 Jun 2017, 21:07 ]
Post subject:  Pioneer DVL - 909 snag fault

My Pioneer DVL-909 has a small snag once in a while that developed over the last few weeks.

Once in while it likes to jump chapter or slow down or play in reverse with the image upside and reversed with the sound in reverse that happened on STAR WARS PAL P/S few weeks ago. Normally or un-normally it likes to skip or sort feels like it slips forward fast then I hear the laser tracking inside the player.

One fella on FB things a possible Logic Circuit as the DVD play drive is okay fine and I would strongly have to agree its a logic Circuit. Where would it be on the player what part of the few many boards inside would the LC be placed on so I can get another player with a fault and swap the board out.

Author:  rein-o [ 19 Jun 2017, 21:32 ]
Post subject:  Re: Pioneer DVL - 908 snag fault

Sounds like it could be a laser issue.
Did you try to contact Grasshopper???
Kurtis is on here more than Duane so hopefully he will chime in.

Author:  krbahr [ 19 Jun 2017, 23:42 ]
Post subject:  Re: Pioneer DVL - 908 snag fault

Hate to say this but if it is upside down and reversed then the sign-bit (MSB) in the digital memory has issues. The board on the top right is DVD only so that would be OK. The board underneath is the LD board and final signal output drivers. The problem is probably somewhere in the video processor to it's memory IC or to the 3 line digital comb filter.

Author:  laserbite34 [ 20 Jun 2017, 00:26 ]
Post subject:  Re: Pioneer DVL - 908 snag fault

krbahr wrote:
Hate to say this but if it is upside down and reversed then the sign-bit (MSB) in the digital memory has issues. The board on the top right is DVD only so that would be OK. The board underneath is the LD board and final signal output drivers. The problem is probably somewhere in the video processor to it's memory IC or to the 3 line digital comb filter.

Okay then that makes sense. I keep a look out for a another model and get some parts off it unless I see spare parts on there own. Cheers that was easily helpful information. :thumbup:

Author:  laserbite34 [ 20 Jun 2017, 01:00 ]
Post subject:  Re: Pioneer DVL - 908 snag fault

rein-o wrote:
Sounds like it could be a laser issue.
Did you try to contact Grasshopper???
Kurtis is on here more than Duane so hopefully he will chime in.

Its not the laser its soundly okay otherwise it I'd be or should be seeing some odd distorted image and the DVD as well which is soundly okay. So seems like, krbahr is spot on right.

Author:  rein-o [ 20 Jun 2017, 01:11 ]
Post subject:  Re: Pioneer DVL - 908 snag fault

Yes, seems so, he is the tech and I'm not just guessing.
Sorry to hear your player is giving up.
Good luck on getting another one soon :thumbup:

Author:  laserbite34 [ 20 Jun 2017, 15:54 ]
Post subject:  Re: Pioneer DVL - 908 snag fault

I'm cool. 8-) its only a snag. Trouble is the player seems to have gained some popularity with the price going up on it. Is it the cosmetic appearance of the player/s as there are other models that look similar or its combo features?

I got that for £100 some 8 years ago now and that wasn't a bad going price.

Author:  krbahr [ 21 Jun 2017, 02:28 ]
Post subject:  Re: Pioneer DVL - 908 snag fault

BTW: the DVD uses the other pickup that is back in the turn mechanism, the unit should switch pickups and play a DVD just fine.

Author:  laserbite34 [ 21 Jun 2017, 11:00 ]
Post subject:  Re: Pioneer DVL - 908 snag fault

krbahr wrote:
BTW: the DVD uses the other pickup that is back in the turn mechanism, the unit should switch pickups and play a DVD just fine.

I don't follow its so hot this weather. You mean part pic, below (my own player).

Image

Or the turn-mechanism located at the back. It sounds normal to all the videos on youtube same sound/s that it makes no jamming or delay, just smooth turn over, pick-up speed to next side B.

Image

BTW: played a bit of STAR TREK II PAL P/S yesterday and it seemed to run fine. Its like its got a mind of its own and will only do the "funny" as and when it likes? If I have the camera nearby next time I try and video a few seconds of it.

Also, Also, krbahr any idea what the DVD-board was used in what Pioneer stand-alone DVD player of the 90's?

Author:  laserbite34 [ 21 Jun 2017, 11:19 ]
Post subject:  Re: Pioneer DVL - 909 snag fault

Reading though some of the threads on the (players forum) I see interesting well curious thread that some models had bad spindle motors. That isn't the case here. Thou the spindle has sort of slowed down due to the odd funny thing happening. I may get a new spindle motor as it can't hurt and its been spinning for some 19 years?

DVL-909 repair

Author:  laserbite34 [ 21 Jun 2017, 11:46 ]
Post subject:  Re: Pioneer DVL - 909 snag fault

I see it. The DVD is part of DV 505 model and LD part of 925.

http://www.laserdiscarchive.co.uk/DVL-909.htm

Author:  kris [ 22 Jun 2017, 11:26 ]
Post subject:  Re: Pioneer DVL - 909 snag fault

Do you have the numbers available printed on the board? I have a few around for donor parts

Author:  laserbite34 [ 22 Jun 2017, 20:35 ]
Post subject:  Re: Pioneer DVL - 909 snag fault

kris wrote:
Do you have the numbers available printed on the board? I have a few around for donor parts

LOL donor parts. I don't have numbers. I have to pull the player out and have a look again. I get the player out tomorrow its too hot right now, heatwave, I guess its heatwave over in Belgium as well.

Author:  8traxrule [ 14 Jul 2017, 00:51 ]
Post subject:  Re: Pioneer DVL - 909 snag fault

I bought that player when it was new, it once did what you were describing on an uncovered DiscoVision dead side. I never saw it do that again after that. It was my main player for about 13 years and is now retired.

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