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Guest
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Post subject: [CLD-D703] Stops itself after initial spin up Posted: 19 Apr 2017, 20:33 |
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Hey all, first post here. I run a repair shop in Portland and recently acquired a customer with a large collection of laserdiscs and players. He has dropped off a pioneer that i need help troubleshooting. My usual work is in guitar amps and vintage stereos, so this is new territory for me. Basically I am looking for tips or a shortcut, because troubleshooting this circuit is daunting. The player powers up just fine, opens and accepts a disc and closes cleanly. Then it is picked up automatically and then immediately put down. Then I press play and it picks up and begins to spin, for about fifteen seconds then it just stops driving and coasts down to a stop. Then it takes about a minute to come down before it can be ejected. No error codes or anything on the readout. Sounds like the stop button was pressed. I cleaned the lazer eye and everything appears to be clean. No swollen capacitors or damaged components revealed themselves in a visual inspection. Any tips would be so greatly appreciated! Thanks
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Guest
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Post subject: Re: Pioneer CLD-D703 stops itself after initial spin up Posted: 19 Apr 2017, 23:44 |
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Right on thanks, I will try a CD now.
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Guest
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Post subject: Re: Pioneer CLD-D703 stops itself after initial spin up Posted: 20 Apr 2017, 17:28 |
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Ok, tryed a CD. Same thing happens. Starts spinning and then immediately stops.
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audioboyz1973
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Post subject: Re: Pioneer CLD-D703 stops itself after initial spin up Posted: 20 Apr 2017, 18:27 |
Advanced fan |
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Joined: 16 Jun 2015, 15:40 Posts: 825 Location: Australia Has thanked: 105 times Been thanked: 95 times
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krbahr wrote: It's not that easy!! .......After that it's debug mode and oscilloscope. Could be the power supply, laser (as the CD does not require all the extra tracking requirements of LD), or servo main board. As someone who considers himself to have at least half a brain and an ability to learn I'd love to learn how to better maintain my players. Relatively simple stuff like belts and grips and occasionally dry-joints I can do but beyond that I'm a dunce. I already purchased a Pioneer test disc (before they run out too) with a view to doing that in the future, and an oscilloscope was to be my next step. The very thing that largely contributes to making me want to be more self sufficient (isolation here in Perth in a VERY minor LD market) also makes it hard to find knowledgeable and/or experienced people in the first place, let alone willing to teach, and I'm willing to pay for their time. I have one option that I plan to check out soon, a genuinely nice guy who was a service agent for pioneer in LD days (still is a pioneer agent as far as I know) and may have some reasonable LD experience. Outside of him or any recommendations he might have I'm stuck. Maybe there is a market out there for those who are knowledgeable to pass their skills on? And I don't mean to put all that back on Kurtis at all - it was just a great quote above that brought my thoughts on this to the fore - there must be plenty more experienced techs from the days out there - I'd love someone who fits the bill in Australia to read this and take me up on it!!!!
_________________ Looking for Hi-Vision Discs (MUSE or HDVS).......
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audioboyz1973
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Post subject: Re: Pioneer CLD-D703 stops itself after initial spin up Posted: 20 Apr 2017, 19:33 |
Advanced fan |
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Joined: 16 Jun 2015, 15:40 Posts: 825 Location: Australia Has thanked: 105 times Been thanked: 95 times
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Again true,
But I'm really trying to be 'glass half full' here.
Believe we really do need to think about passing the knowledge on and not losing it or we (and those to follow) are all screwed; not to mention the format finally, really, dies sooner than it needed to.
If I can find one guy, who can teach me more than I know already, I'm happy.
And frankly if the few left who are prepared to do so, choose their prodigy carefully and I don't even make the cut, I'm still just happy that the knowledge lives on. Then I'll just pay that new guy to fix my player, oh I'm in Western Australia right, still no-one here; bloody two way shipping to the states or Japan - damn!! (hopefully the supply of players doesn't run out in my lifetime....)
_________________ Looking for Hi-Vision Discs (MUSE or HDVS).......
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makeshift_python
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Post subject: Re: Pioneer CLD-D703 stops itself after initial spin up Posted: 24 Apr 2017, 07:06 |
Third post and above |
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Joined: 13 Apr 2017, 04:51 Posts: 3 Location: United States Has thanked: 0 time Been thanked: 0 time
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I have a CLD-D704 that basically does what you describe, except it does play CDs just fine. Player starts to spin an LD, then after seven to ten seconds it stops and automatically ejects. It was the first LD player I ever bought (eBay, of course), but knowing how well regarded it was I didn't just want to sell it for parts, not if there was a simple solution to getting it going again. In the meantime, I bought a CLD-501 as a back up for cheap, which plays wonderfully but lacks the features that D704 has like digital memory, AC-3, etc.
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krbahr
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Post subject: Re: Pioneer CLD-D703 stops itself after initial spin up Posted: 24 Apr 2017, 21:52 |
Hardcore fan |
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Joined: 10 May 2007, 03:12 Posts: 1520 Location: United States Has thanked: 0 time Been thanked: 337 times
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makeshift_python wrote: I have a CLD-D704 that basically does what you describe, except it does play CDs just fine. Player starts to spin an LD, then after seven to ten seconds it stops and automatically ejects. It was the first LD player I ever bought (eBay, of course), but knowing how well regarded it was I didn't just want to sell it for parts, not if there was a simple solution to getting it going again. In the meantime, I bought a CLD-501 as a back up for cheap, which plays wonderfully but lacks the features that D704 has like digital memory, AC-3, etc. This could be an easy fix since it plays CD's fine, have to measure voltage on the main servo board to determine and then solder new parts onto the main servo board.
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kris
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Post subject: Re: Pioneer CLD-D703 stops itself after initial spin up Posted: 09 Apr 2021, 16:42 |
Hardcore fan |
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Joined: 05 Dec 2006, 19:08 Posts: 1181 Location: Belgium Has thanked: 47 times Been thanked: 32 times
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cplusplus wrote: Still thinking this is something mechanical. Wobbly back panel or bent crossbars, clamper etc.
Next time it gets caught up searching, try applying gentle pressure to those parts and see if it makes it better or worse. changed the top clamp today and succes! I opened up the top clamp. there is a washer sitting in between and this turned out to be worn. the white plastic round washer looks like it has been worn in the middle by the years of spinning. the ball bearing is to blame for that after all these years! I took plyers to take it of and found it is simply held by glue and a sort of rubber cushion in between the metal bracket and plastic washer. no more doubts when spinning up now! I have some scrap cld-2950's around that use the identical loading assy etc. I knew they would come up handy one day. Thank you for the advice on this. mechanics can be challenging small things that make you think....
_________________ CLD-D925 RFD-1 CLD-99 elite Lexicon LDD-1 SR-7015 RMB-1585 DP-UB820 TX-58DX780E
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