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| cplusplus |
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Posted: 18 Feb 2022, 00:13
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I just reread your original post. People usually only check LD, but I see you only checked CD.
Definitely check LD before you go tinkering.
logdowg wrote: fails to spin the disc past 2 seconds
Do you mean it will play the CD for two seconds or the spindle will only start to spin for two seconds? |
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| cplusplus |
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Posted: 22 Feb 2022, 16:28
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elahrairrah wrote: I just put side B facing up.
Same. Aside from unnecessary wear, it is just quicker. Especially on older players. |
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| cplusplus |
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Posted: 25 Feb 2022, 02:25
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ldfan wrote: I occasionally prefer to start on Side B to ensure the disc comes to a stop.
Many will just play Side A if you press Side A, but I usually forget to press it. |
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| cplusplus |
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Posted: 25 Feb 2022, 05:48
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Attachment: SingleSidePlay.jpg
ldfan wrote: I learn something new everyday.
Same here.
Another nice feature on some players is where you can resume playback from where you powered it off. |
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| cplusplus |
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Posted: 26 Feb 2022, 05:02
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My personal view is buy the lowest noise, most pure composite player player possible. This allows for flexibility as technology progresses.
People also need to understand that an expensive player with slight crosstalk can have a worse picture than a cheap player with zero crosstalk. Slight crosstalk presents itself as minimal background noise. The only way to clearly see it is with a test disc. Even then, I have to set my CRT to provide the noisiest picture possible while I am dialing it out. This is not to be confused with severe crosstalk which is when you clearly see the herringbone-like noise.
Aside from internal wear and tear (i.e. cracks in plastic that do not affect playback), what does shipping or rough handling do to the crosstalk related adjustments? When I bought a player from Duncan long ago, it arrived in a massive box. It was double boxed, with packing peanuts between the inner and outer boxes.
Aside from all of that, a couple of times I have repaired players that did not have any picture quality issues (i.e. just a loading problem or bad arc suppressor), and when they pick it up they are surprised by an improvement in picture quality. It ends up that they are running awful settings on their display. Again, a cheap player can look better on a properly set display than an expensive player with terrible display settings.
What I am getting at is impulse buying an expensive player off eBay does not mean you now have a top-tier setup. In regards to expensive scalers/filters: crosstalk in, scaled/filtered crosstalk out.
Buy local, have a quality display, and have the settings correct for LD. |
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| cplusplus |
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Posted: 01 Mar 2022, 14:47
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Welcome.
F210 is a 1.25A 60V fuse, not a resistor.
Attachment: F210.jpg |
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| cplusplus |
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Posted: 02 Mar 2022, 14:25
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Original fuses are Littelfuse 491 Series. That exact series might be hard to find, so I'd replace with "Very Fast-Acting" green PICO fuses.
Voltage can be 125V, but the amps must match. |
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| cplusplus |
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Posted: 02 Mar 2022, 14:51
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| cplusplus |
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Posted: 02 Mar 2022, 18:26
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| I hope the seller or buyer will submit the mint marks. |
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| cplusplus |
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Posted: 03 Mar 2022, 06:16
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And while it may have been the last retail release of a feature film on LD it wasn’t even close to the last LD ever produced.
I went down the rabbit hole on this one:
Last release that I have seen proof of is a LD Single from 2007. Based on mint marks and digging through archived Kuraray reports, it looks like they made the stamper but replication might have occurred elsewhere. Kuraray stopped 12" manufacturing before March 31st, 2001 and all optical disc manufacturing in 2003 ( http://web.archive.org/web/20080613050201/http://www.kuraray.co.jp/en/business/methacrylate.html ). They still made stampers.
The last 12" we have proof of is Dragon's Lair (1983) [---] . In the notes, you will see that a Disney disc has a higher mint mark, but if you read https://web.archive.org/web/20020328065838/http://www.hi-techmechanical.com/ it appears that Dragon's Lair was ordered before it for the check discs, but likely fully replicated after the Disney disc.
Pioneer didn't go scorched-earth until March 2003 when it ceased all optical disc production, so there very well could be some 2003 12" floating around but I would want to see photos and mint marks. |
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| cplusplus |
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Posted: 09 Mar 2022, 06:03
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| That is just an identifier for a coil in power supply. |
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| cplusplus |
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Posted: 09 Mar 2022, 06:14
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Someone brought me two LDP-1450s not too long ago that wouldn't read discs at all. Sony... didn't do a good job at all with their LD players or discs.
Very small chance it isn't your player. Unplug it, open it up and make sure the lens is clean. |
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| cplusplus |
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Posted: 10 Mar 2022, 05:35
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| Be sure to test it thoroughly. Try skipping several chapters on Side A and also on Side B. CLD-D504 has a very fragile M-Holder. |
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| cplusplus |
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Posted: 16 Mar 2022, 01:02
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CLD-2730K is better built. CLD-D390 would likely have sharper, but noisier picture. I'd go with the CLD-D390 though for AC-3 RF.
Double-check the back, but neither should require a step-down transformer. |
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| cplusplus |
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Posted: 19 Mar 2022, 20:00
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| I personally feel even 1% for Kuraray and Pioneer from 1997-2001 is a stretch, but there is no way of knowing. |
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| cplusplus |
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Posted: 22 Mar 2022, 23:38
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Even the manufacturers would not know this number.
I am more interested in uncovering concrete evidence as to why Sony DADC USA had such a ridiculous defect rate. |
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| cplusplus |
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Posted: 23 Mar 2022, 14:47
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The following is from a conversation I had with a former Technidisc employee. I made minor edits (readability), and it is shared with permission. This is strictly going off of that person's memory, so take from it what you will.
This was a large factory that had four different cleanroom modules inside of it. In front was the mastering module. It was both a cleanroom and it had filtered light. They had three other modules that were devoted to laserdisc and one to CD. Entire production lines from beginning to end inside each module. They had positive air pressure: each of the clean rooms was being pumped full of clean air from a HEPA filter. Any leaks will be pouring out clean air rather than letting dirty air in. They also had a giant library room full of rolling shelves that contained stampers in canisters. One item I liked was a very old laserdisc player that they had rigged up to play master discs. Because it was working with a mirror image of the data it had to play backwards. They had one engineer who actually knew what he was doing. And a bunch of potheads who did the actual work. Every once in awhile he would come in and check up on them and straighten out that work. Each of the modules was crewed by a different group. Laserdisc modules were ran by entire families. It ran 24 hours a day and they worked in shifts. Some would live at home while the others were working, then switch. Module one was ran by a man named <Name 1>. Module two was ran by a guy named <Name 2>. Automation ran mostly by pneumatics and Allen-Bradley ladder logic programmable logic controllers. Prices were hand operated, but they added automation piece by piece over the years.
When each of the laserdisc modules ran, they had a lady who sat in a room with about a dozen laserdisc players of different models. They would give her samples and she would sit there watching every disc playing simultaneously, looking for any kind of dropout. If she saw anything, production would stop and the issue corrected. Most of my laserdisc collection are vintage test discs. The engineers would grab samples to see if they were working or not and then throw them out and I would take them. Most don't have labels and only a few have jackets. Some were side A on both discs, but I usually didn't take those. I got a couple of good ones in my collections like the Star Wars set, take right from the factory floor. I think they caught a few people stealing the test samples and selling them at a local video store. I never sold mine. I just kept them to watch.
The real collectible gems were the radio CDs. Back then they would mint CDs with a collection of songs for the radio stations to play. We would get one CD with 15 songs. 5 rap, 5 rock, 5 country. They would ship them to radio stations, and they would only use the five tracks they needed. Whatever the top songs at the time were, they were on the playlist. Near the end we made a few CD-ROMs. There are a couple of collections of women in swimsuits as JPGs. Plus we made the Rush Limbaugh Mega Dittos screensaver CD. Last time I visited the old Technidisc building, it was a warehouse for cellphones.
Fans of the format have been trying to decipher Technidisc mint marks further. Do you happen to know any more detail on this: 025-085-649C 5H9H# ? We know 025 is Image Entertainment, 085 is August 1995, but no clue on other numbers. I’m guessing it has something to do with the day or possibly the modules you are talking about.
No because they moved stampers between modules. I think those numbers were used for what shelf it was on in the storage area, but I don’t know if there is any other meaning. I know they would make three or four stampers for every job incase one had a flaw they would switch to the next. So that might have been the way to tell the different stampers apart.
Did you ever notice that some laserdisc manufactured there have metal that goes all the way to the edges, and some have it that only goes partly to the edge? The last few years module 2 got a sputterer for metallization, replacing the vacuum chamber. So any disc that did not go all the way to the edge was from the sputterer. The German manufacturing video had a big metallization chamber that looks a lot like the one in module 1.
Did Technidisc use injection molding?
We had two large hydraulic injection mold presses that could do laserdiscs. We had seven small ones for CDs and later bought a faster one for CDs that could produce faster than the other ones combined. The modules had the press at the far end. Automation would reach in and grab the clear disc. An operator would stand there with an air hose with anti-static air and blow on the disc. It would then be picked up and put on the drum for the metallizer. Once they had a full drum, they put it in the metallizer and ran it. From there they were unloaded and ran through a conveyor belt that put on the glue and other side. They were then pressed together. From there they went outside of the cleanroom to a finishing room. There was a lady that would grind the edges smooth, stick on a label and put in a white sleeve on a cart. These carts were then shipped out of the building to a different facility that would put them in the packaging and ship them wherever.
I remember one time they were taking some samples off to an electronic show, then realized the width of the tracks was badly out of range on the samples. It was too late to make replacements, so they had to stand there and say “Our discs are just like these, but they will be right.” We had one engineer who was fixing stuff. He would come in and see that everything was working right. Then go away for a few months and things would slowly get worse and worse. He’d come back and set everything right again. He was one of the engineers at Technidisc. |
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| cplusplus |
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Posted: 23 Mar 2022, 15:21
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| Same here. If I can fix it, I fix it no matter the value or quality of player. It is really nice that it has the box. Keep us updated as you make progress. |
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| cplusplus |
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Posted: 07 Apr 2022, 14:33
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Disgusted with myself. I usually don't watch anything outside of the 1970's and 80's and try to ensure if an IMDB score is involved, that it is no higher than a 3.
:lol: likewise!
Lowest: 1.2
Highest: 9.2
Average: 6.66
My collection here is missing an insanely large amount I have not added yet though. |
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| cplusplus |
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Posted: 07 Apr 2022, 14:35
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| If it happens repeatedly with the same disc, it is probably slightly warped. If it is intermittent with the disc, it is probably something related to clamping. |
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| cplusplus |
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Posted: 07 Apr 2022, 23:28
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That is probably full RF.
When I put a disc in, the laser moves in to read the disc (CD and LD), but the spindle motor never spins the disc up during read operation.
Likely another dead Sony KHS-130A rather than the spindle.
My 2 cents, this thing is either a clone of a Pioneer CLD-1070 or CLD-1080.
I'm still not sure who made it but it was not Pioneer. It has a Sony pickup. Interesting to see 5 Yamaha ICs. |
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| cplusplus |
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Posted: 10 Apr 2022, 19:07
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| CLD-616 looks like some sort of upgraded CLD-2080. |
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| cplusplus |
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Posted: 10 Apr 2022, 19:23
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ldfan wrote: In any case, the RF tap is somewhere just before the band pass filter
Yep - in Pioneer-land, you are looking for the two transistors just before the BPF. Some models even keep the same numbering: Q352.
No need to scope it, but if you really want to: http://www.laaudiofile.com/ac3mod.html |
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| cplusplus |
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Posted: 12 Apr 2022, 14:35
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So, in my opinion this model appears to be a hybrid between a CLD-3080 and CLD-95 Elite
I was thinking the same, but the jacks are grouped like on a CLD-2080 instead of split like on the CLD-3080 and CLD-95.
I found this: https://omsound.exblog.jp/17746798/
Maybe its a CLD-2080 with CLD-3080 video upgrades but no audio upgrades? |
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| cplusplus |
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Posted: 13 Apr 2022, 13:31
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| Could be either. CLD-D703 is significantly easier to fully adjust than the prior models. |
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Thanks list