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 Post subject: Re: [CLD-2070] Major power issues, will die on eject
PostPosted: 20 Sep 2020, 20:33 
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Looks like the same power supply minus the transformer which is good news. We probably have the same problem.
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 Post subject: Re: [CLD-2070] Major power issues, will die on eject
PostPosted: 25 Sep 2020, 17:37 
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I have just finished replacing every single capacitor on the power supply board (minus one small one which I forgot to order :/ hopefully it will be fine) and will begin the reassembly process hopefully today. Unfortunately I did not mark which side the hot and neutral lines of the plug solder on to, @cplusplus could you check your board and tell me which side each of the main wires solder on to?
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 Post subject: Re: [CLD-2070] Major power issues, will die on eject
PostPosted: 25 Sep 2020, 18:01 
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Glad I had a photo since my unit is reassembled currently.


Attachments:
CLD-92_Power.jpg
CLD-92_Power.jpg [ 130.67 KiB | Viewed 1649 times ]
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 Post subject: Re: [CLD-2070] Major power issues, will die on eject
PostPosted: 25 Sep 2020, 20:20 
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My wires are not color coded like yours, the side with the wider plug has a white stripe on it, is it the same as the white cable in your photo?
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 Post subject: Re: [CLD-2070] Major power issues, will die on eject
PostPosted: 25 Sep 2020, 20:36 
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Wide prong (neutral) should be white, and the other smaller prong (hot) should be black.
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 Post subject: Re: [CLD-2070] Major power issues, will die on eject
PostPosted: 26 Sep 2020, 01:47 
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Good news and bad news.

Good news-- the recap was successful in that it turns on and the unit DOES sound healthier and the lights are brighter.

Bad news-- still dies on eject. Whenever the tray pushes on the door, some relay pops and the unit turns off. I open the eject door my hand - pops and turns off. Anything moves the door hinge - pops and turns off. I think maybe the door might be short-circuiting the relay. Any ideas?
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 Post subject: Re: [CLD-2070] Major power issues, will die on eject
PostPosted: 26 Sep 2020, 03:05 
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If you have not already, you need to disassemble the loading assembly, remove all of the old grease that has turned into goo, and replace it with white lithium grease.

I'm wondering though if this could be the relay? I'm currently working on a player, but after that I'll bring my CLD-92 back out. I'll probably try jumping the relay to see if it makes any difference.
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 Post subject: Re: [CLD-2070] Major power issues, will die on eject
PostPosted: 26 Sep 2020, 03:19 
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GOOD NEWS, I FOUND ONE OF THE FAULTS!
turns out it dies on eject because the screen unit ribbon cable is shorted/dead. There is a visible crease and the multimeter gives strange results. I swapped it around to see what it would do and now the unit will not power on unless I press down on the cable, the screen still doesn't turn on because if it as well. DO you know where I could find a 30 pin 1mm pitch reverse FFC cable (a pretty short one)? I don't want one that takes a month to arrive, but I am keeping my eye out.
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 Post subject: Re: [CLD-2070] Major power issues, will die on eject
PostPosted: 26 Sep 2020, 04:31 
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I bought some from Rakuten recently but almost any place sells them.

Just make sure you have all the specs correct on the cable.
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 Post subject: Re: [CLD-2070] Major power issues, will die on eject
PostPosted: 26 Sep 2020, 22:44 
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rcracer809 wrote:
GOOD NEWS, I FOUND ONE OF THE FAULTS!
turns out it dies on eject because the screen unit ribbon cable is shorted/dead.

It looks like you are almost there :thumbup:
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 Post subject: Re: [CLD-2070] Major power issues, will die on eject
PostPosted: 28 Sep 2020, 18:08 
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The cable should arrive this afternoon, I found one buried deep in the Amazon search results. I still don't know if the original issue of the player not spinning side B is fixed yet.

EDIT: it was the wrong cable:( I don't even know where to find this one, its pitch is larger than 1mm.
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 Post subject: Re: [CLD-2070] Does not play side B, power issues fixed.
PostPosted: 04 Oct 2020, 03:45 
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Good news: IT'S ALIVE!!! I got a new cable with seems to have remedied the power issues, and with the recap the player seems more alive than before.

Bad news: Back at square 1. The original issue still persists, it will not play side B. I did some testing and found out that it looks at the top side of the disc for varying amounts of time before giving up, returning to home position, and going into STOP mode. I am unable to find any error codes. I just tightened the top grip ring because CDs were skipping, they do not skip after I tightened but it did not help the main issue. If a new video would help, let me know. @cplusplus and others, any ideas?
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 Post subject: Re: [CLD-2070] Does not play side B, power issues fixed.
PostPosted: 04 Oct 2020, 03:47 
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centering???
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 Post subject: Re: [CLD-2070] Does not play side B, power issues fixed.
PostPosted: 04 Oct 2020, 05:31 
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The disc appears centered -- at least on side A, which plays fine. It fits into the ring fine. Maybe it could be a centering issue on side B only, but I am not sure what would eb causing it. I will have another look tomorrow.
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 Post subject: Re: [CLD-2070] Does not play side B, power issues fixed.
PostPosted: 04 Oct 2020, 14:50 
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Centering as in the spindle to the optical pickup, not the disc to the spindle.

Side A and B have separate centering and tangential adjustments. The centering adjustment calls for the special "screw driver" GGV-129.
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 Post subject: Re: [CLD-2070] Does not play side B, power issues fixed.
PostPosted: 04 Oct 2020, 15:15 
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I would try centering first before any electronic issues.
I don't know what the tangential thing is.

But I'm no tech.

I had an issue like on my 3070 and side B was having issues after shipping so a little adjustment did it for centering.

C+ has been doing more repairs than me :lol:
Good luck.
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 Post subject: Re: [CLD-2070] Does not play side B, power issues fixed.
PostPosted: 04 Oct 2020, 16:31 
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The tangential adjustment refers to the "tangential direction angle" of the pickup. It's just a screw, but if it is out of adjustment you will get a noisier picture.

I've got to adjust the centering of side A on my CLD-92 but it does not look fun at all. These older players are harder to work on.
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 Post subject: Re: [CLD-2070] Does not play side B, power issues fixed.
PostPosted: 04 Oct 2020, 16:47 
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@rein-o can you please tell me how you did it? The 3070 has the same internals as my 2070 and I have no idea how to adjust centering. @cplusplus where would I find this adjustment screw?
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 Post subject: Re: [CLD-2070] Does not play side B, power issues fixed.
PostPosted: 04 Oct 2020, 17:00 
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If you can post a picture I can point it out.
Its a white piece on the top. Doesn't look like it would do anything.
VERY VERY VERY Small adjustment is needed, you try one way and then the other.
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 Post subject: Re: [CLD-2070] Does not play side B, power issues fixed.
PostPosted: 04 Oct 2020, 19:26 
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rein-o wrote:
VERY VERY VERY Small adjustment is needed, you try one way and then the other.

This exactly if you do not have an oscilloscope.

View the adjustment procedure PDF here: https://manuals.lddb.com/LD_Players/Pio ... /CLD-3070/

Step 12: "Fine Centering Adjustment for Side B Play"

Ignore all the text and just look at the diagram of where the "screwdriver" goes, but as rein-o said posting a picture would be more helpful to ensure you have the right adjustment point.

Also don't worry about the tangential adjustment until you get side B playing. It only needs to be adjusted if you have crosstalk.
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