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signofzeta
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Post subject: Re: There has been a sharp increase in broken LD players.... Posted: 29 Jun 2017, 21:42 |
Jedi Knight |
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Joined: 14 Jan 2010, 09:44 Posts: 5978 Location: Ann Arbor Has thanked: 1280 times Been thanked: 1099 times
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Come to think of it...you don't really need an FPGA. There's loads of room in most LD players. The mini computers like Arduino and whatnot are only going to get more powerful.
How large is the gulf, would you say, from what needs to be done CPU-wise and what can be done with Raspberry type stuff? I guess you'd have to write lower level code but how far away are the CPUs? Are the inputs sufficient? I guess you guys are using TV tuners, capture cards, whatever, so that's a pretty big difference.
_________________ All about LD care, inner sleeves, shrink wrap, etc.
https://youtu.be/b3O-vHpHRpM
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gumbyandpals
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Post subject: Re: There has been a sharp increase in broken LD players.... Posted: 30 Jun 2017, 01:44 |
Advanced fan |
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Joined: 02 Oct 2008, 04:35 Posts: 565 Location: Minnesota, United States Has thanked: 0 time Been thanked: 2 times
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happycube wrote: I could also see writing up some of the mods floating around, like a "light" version of what laserdiscmodder did - bypassing the video output circuit on the late players looks like it reduces ringing a lot, and some light modding elsewhere *might* reduce noise. Did he ever divulge what exactly he did? Last I checked it was a bunch of videos showing off a bunch of random mods with no explanation. I think a lot more people are going to have to learn how to do repairs themselves to keep the machines going. That's not for everyone though. There's too many head-shaking stories here about people messing with stuff over their heads.
_________________ Laserdisc Player CLD-3080 w/ AC-3
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gumbyandpals
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Post subject: Re: There has been a sharp increase in broken LD players.... Posted: 30 Jun 2017, 04:46 |
Advanced fan |
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Joined: 02 Oct 2008, 04:35 Posts: 565 Location: Minnesota, United States Has thanked: 0 time Been thanked: 2 times
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primetarget wrote: Agreed laserdiscmoder did post a ton of stuff but never a how-to video then he up and ghosted. If you think about it that IS what's missing from our community new people learning how to repair and adjust players. If grasshopper and kurtis decide to retire tomorrow we are up s**t creek.
Gumbyandpals didn't you acquire the remote, disc and scope to try your hand in adjusting or was it happycube? I have everything to do the adjustments and I learned how to do them on a CLD-3080 and LX-900. It took a good deal of time to get it right and feel confident in what I was doing. It seems to be one of those things where experience helps just as much or more than reading and understanding the service manual. That's why grasshopper and kbahr are good at what they do.
_________________ Laserdisc Player CLD-3080 w/ AC-3
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happycube
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Post subject: Re: There has been a sharp increase in broken LD players.... Posted: 02 Jul 2017, 05:55 |
Absolute fan |
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Joined: 18 Apr 2012, 18:02 Posts: 1614 Location: United States Has thanked: 71 times Been thanked: 88 times
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With a lot of software work it might be possible with a really good mobile SoC with an ADC datastream to decode LD in good quality in real time. Someone else will need to do that, tho (Fun fact: A Raspberry Pi can do 240P/480I component, you just need an HDMI->Component adapter off eBay etc and some /boot/config.txt settings.) Nope, he didn't... and probably didn't stop at low-hanging fruit either. But a few changes here and there might reduce late player noise a bit. There's a thread from last year where someone modded their 606 to bring composite out straight from the TBC - which showed that the low pass filter in the output stages introduces a lot of the ringing etc. A proper op amp circuit there would be nice (and would probably protect the TBC from ESD etc a bit) Getting the adjustments etc done is as much art as science. I can do simple stuff mostly on the late CLD series, but I don't know if I could do a good job on a 3080 yet For anyone who wants to get started learning about player repair, I posted this Pioneer video on the S104 on youtube: https://www.youtube.com/watch?v=FIMBrbRPRro
_________________ Happycube Labs: Where the past is being re-made, today. [meep!]
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chaniyth
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Post subject: Re: There has been a sharp increase in broken LD players.... Posted: 24 Jul 2017, 13:42 |
Genuinely interested |
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Joined: 03 Jul 2017, 17:16 Posts: 48 Location: United States Has thanked: 0 time Been thanked: 0 time
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happycube wrote: Yup, buying local is definitely better for the players. I agree 100% on this and is the main reason I sourced mine local. Most sellers on eBay and Amazon get very skimpy when it comes to shipping due to greed, laziness and/or just plain stupidity and thus causes damage to the players during transit. Aren't sellers suppose to lock the laser down via the transit screw before shipping? Would that help? Besides that, buying local allows you to inspect the item before you make the purchase. It also lets you enjoy it significantly faster and buying local tends to be cheaper and no shipping fees.
_________________ Pioneer CLD-3070
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laserpaal
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Post subject: Re: There has been a sharp increase in broken LD players.... Posted: 28 Jul 2017, 15:39 |
Advanced fan |
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Joined: 15 Apr 2012, 10:36 Posts: 544 Location: Norway Has thanked: 9 times Been thanked: 17 times
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chaniyth wrote: happycube wrote: Yup, buying local is definitely better for the players. I agree 100% on this and is the main reason I sourced mine local. Most sellers on eBay and Amazon get very skimpy when it comes to shipping due to greed, laziness and/or just plain stupidity and thus causes damage to the players during transit. Aren't sellers suppose to lock the laser down via the transit screw before shipping? Would that help? Besides that, buying local allows you to inspect the item before you make the purchase. It also lets you enjoy it significantly faster and buying local tends to be cheaper and no shipping fees. Unfortunately, that is not possible for us overseas. We have to rely on the seller to have a description that matches the product being sold and that it arrives in one piece. I know many eBay sellers are lazy to give a correct description and quality pictures for us to judge.
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chaniyth
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Post subject: Re: There has been a sharp increase in broken LD players.... Posted: 29 Jul 2017, 01:39 |
Genuinely interested |
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Joined: 03 Jul 2017, 17:16 Posts: 48 Location: United States Has thanked: 0 time Been thanked: 0 time
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krbahr wrote: To find a player that locks down the laser you have to go way back before 1985 at least to find one. All the newer players like the CLD-3070 lock the turn mechanism with the transit screw at the back. The laser is not locked. Thank you kindly for the clarification.
_________________ Pioneer CLD-3070
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discoman
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Post subject: Re: There has been a sharp increase in broken LD players.... Posted: 21 Mar 2019, 15:34 |
Honest fan |
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Joined: 01 Jun 2011, 08:20 Posts: 86 Location: United States Has thanked: 0 time Been thanked: 0 time
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I have had luck fixing broken players, and they've fared well like my DVL-700 that came to me with shipping damage. I found a non-working one to use for parts but found it was in better shape than the one I already had aside from the tray belt, so I fixed that one up and it currently sits on my stereo rack in my living room. I've bought several players that were in good shape but destroyed due to bad packing aside from my most recent find, my CLD-3070. I took the risk in buying it on eBay, and it showed up in great packaging and nothing was broken as an result. I've currently got it sitting on the shelf with my CLD-2080, LD-V2200, CLD-V2400 and CLD-D503 that are all fixed up and waiting in the event my DVL-700 in the living room or my CLD-S104 in the bedroom break down. I've had more damaged by shipping rather than me messing them up by attempting to repair them.
_________________ My Players: DVL-700, CLD-2080, CLD-3070, CLD-D503, CLD-S104, CLD-V2400, and LD-V2200
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chando
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Post subject: Re: There has been a sharp increase in broken LD players.... Posted: 19 May 2019, 06:35 |
Knows how to post |
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Joined: 19 Aug 2018, 12:59 Posts: 11 Location: Australia Has thanked: 1 time Been thanked: 0 time
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With a constant keen eye on Ebay & local Gumtree classified listings, I've managed to pick up quite a few good & not-so-good LD players in recent years. As I would arrange personal pickup where possible, DOA rate is usually low. For the few units already declared dead, I bought them only for parts or hard-to-get remotes. I also got lucky in bringing a perfectly fine player back to life, simply by replacing a blown fuse.
My strategies in rejuvenating old players are thorough cleanups from inside out, polish/clean metal terminals, & most importantly, re-grease moving parts. The web does provides fantastic resources in service manual downloads, as well as very useful service/repairs video clips.
For fellow LD player collectors, it's highly recommended to have a focus on late Pioneer models i.e. the DVLs. Good luck!
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ldfan
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Post subject: Re: There has been a sharp increase in broken LD players.... Posted: 20 May 2019, 04:56 |
Hardcore fan |
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Joined: 28 Jun 2014, 05:59 Posts: 1454 Location: San Francisco, CA USA Has thanked: 422 times Been thanked: 533 times
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chando wrote: For fellow LD player collectors, it's highly recommended to have a focus on late Pioneer models i.e. the DVLs. Good luck!
I would respectfully disagree about that. DVL units were always compromises when it came to performance and they are by far more complicated to maintain because of the dual laser set-up. I think just about any player made between 1986 to 1996 with low hours would be an excellent value.
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