ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
MediaBobNY: Puncher:I love my CD50 (I've had A CDX but never a CD5500) but it has again developed the "missing the beginning of a the first track" combined with, at times, " draw cycling in and out without stopping", so time for another service. More ammo to prove our point: They're unreliable. They're quirky. They're difficult to work on.
Puncher:I love my CD50 (I've had A CDX but never a CD5500) but it has again developed the "missing the beginning of a the first track" combined with, at times, " draw cycling in and out without stopping", so time for another service.
More ammo to prove our point: They're unreliable. They're quirky. They're difficult to work on.
That's twice in 28 years - I wish my MX TV had been so unreliable!!
Ban boring signatures!
It must know your moniker..
I have lost count of the CDm servo board repairs I've done, let alone the cap kits I've sent out.Bad rubber suspensions (long out of production), tray motor belt and tray alignment problems,cracked solder joints on the main boards, broken- or badly contacted ribbon cables.Capacitor problems - countless times more than any CD50.I wouldn't call that construction realiable, really.
Deeming the CD50 unreliable or bad simply because it needs service after 30 years and many peoplecan't figure out how to repair them is a little unfair in my opinion.It's actually a very solid build and in many ways fool- and faultproof.Yes, it's a quirky machine.Yes, it's like nothing else.Yes, it may lack some features that were only thought of later.Yes, it needs service every once in a while as most mechanical and electrical things do.Yes, it's a goofy thing to service if you are not familiar with it.But the sound it produces, to me, is worth it all.Electronic repairs to the CD50 are rare, so are laser related problems. And parts are no problemto find and usually cheap since most are fairly standard.
Each to his taste. If you prefer features and sterile sound, be my guest.I would go for the CD50 anytime.Or the CD X for that matter, what a sound but hey, that's only a 14-bit deck !
Martin
MediaBobNY: It must know your moniker..
- I've given it to the the weekend to sort itself out ................ or else!
While you were "talking", I bought one more, just to show the non believers how much I appreciate the BG CD50
Collecting Vintage B&O is not a hobby, its a lifestyle.
Søren Mexico: While you were "talking", I bought one more, just to show the non believers how much I appreciate the BG CD50
Good. Here is your thread on how to take it apart to fix it.
Good thread yes, but don't do the motor with a hammer like Søren eh!
Jacques
chartz: Good thread yes, but don't do the motor with a hammer like Søren eh!
I didnt use a hammer, but the plastic shaft of a middle size screwdriver, I am maybe a little slow, but not stupid
No hard feeling my friend Søren? It was a (bad) pun on Søren Hammer...
Hi Guys
OK, firstly many thanks for all the replies-I seem to have started a right 'ol debate here!
Seriously though, my sister is EXTREMELY happy with this unit, and would not want to part with it-hence my efforts to repair it, so replacing is not an option.
After taking note of the comments, I think a weak belt is one problem, and I will be ordering a new one asap from dillen(Can you pm me with details please) but with a little help the cd is clamped, I then push the micro switch at the end of the lens carrier run, and the cd spins, so thats knocked out the faulty motor idea(Slowly ticking off faults-fantastic!) but the lens carrier is not budging so feel the problem again points to the lens carrier motor.
I have posted a 2nd video on youtube here:-
http://www.youtube.com/watch?v=cF4cA7Cu6xs
I'm confident this is gonna be sorted, thanks to the experts on here.I love forums, its what the net was designed for!
Thanks again and I look forward to your comments
Matt
chartz: No hard feeling my friend Søren? It was a (bad) pun on Søren Hammer...
Hey Soren, any thoughts after seeing the 2nd video?
matt
Madmatt: Hey Soren, any thoughts after seeing the 2nd video? matt
Not Søren here!
The video is too fuzzy to see anything at all.
What are you trying to show us?
Hi all,
ok, I thought the vid was ok, but will explain what is going on.
firstly on loading the disc, I'm turning the big wheel, to complete the load cycle. (New belt needed, I think?)
secondly, im pressing the switch at the end of the load carrier run to show the cd drive motor is ok(disc is spinning fine) this kills my theory the drive motor needs taking apart-phew!
I think(please correct me if I'm wrong!) I need to order a new belt(v.important-with instructions on how to replace!)
I am now hoping one of you can explain why the cd lens carrier is not even trying to move, and how to go about a fix! Fingers crossed!
If you would like me to do another video, just let me know
regards
matt.
p.s.- Soren- where are you mate?
Sorry, the video is totally blurry here and only 240p is available.
Yes a new belt is the order of the day. Have you checked all the contacts involved? The slide switch may be at fault, broken or misaligned.
I',m a little off these days, intending to build a Solar water heating system, but will read forum each morning, but if and when the new belt is there please PM me I will see that
Awesome! Many thanks Jaques!
will have a look at this tomorrow .
Can someone point me in the right direction for a belt for this please?
Madmatt: Can someone point me in the right direction for a belt for this please? matt
Dillen (Martin) on this forum, can deliver with instructions
We like follow-ups here!
Any news then?
I have emailed Martin with no reply!
does anyone know how to get in touch with dillen(Martin)?
i really need this belt, and some assistance with the repair!
Perhaps you did something wrong, because Martin always answers his emails!
Get back to him.
I sure did.
have got in touch with him now, all
paid for, just waiting for the belt now!
Hi,
Any new developments then?
Five pages and no update?
Hi guys,
sorry about the updates. I have the belt now, just waiting for a day off work to start hitting it(not literally!)
will take pics as I strip it but must admit I'm not confident it will fix it. Think belt is one problem, sequencing another:(
should be be starting it in next few days
Thanx Matt, we are following here
Yes, not going anywhere!
ok, can you believe it, my wife threw the belt away thinking it was a normal elastic band!
Have ordered another one from Martin, and will be looking to fit it as soon as it arrives!
Prepare for lots of questions guys!
Madmatt: Prepare for lots of questions guys!
Sure. On hold.
Still no news. Pity!
He hasn't visited this forum since late june.
Having had good success and even better advice from Martin bringing CD5500's back to life from a variety of ailments as well as the ubiquitous drawer belt failing, I decided I ought to tackle a CD50 as it's rare to see a working one for sale and there are lots of broken ones to practice on.
I executed the belt change, with everything marked (and shaft re-grease, cleaned contacts) and the tray and door now operate properly and the disc holder lifts up at the end of tray travel, so a reasonable first effort I think.
Pressing play gave a strange noise and hesitant movement from the disc motor; a gentle prod with a finger got it up to what felt like CD speed but the disc index was not recognized and the disc was ejected. A squirt of contact cleaner at the base of the motor appeared to offer some improvement, in that the motor got itself going but still hesitant and the disc was not recognized.
I read Martin's dire warnings in another thread on working with those motors (and I don't have a 1mm (?) allen wrench on hand to unlock the disc clamp from the shaft) and replaced the whole laser assembly from another non-working CD50 (belt not quite failed on this one). It has a brass colored motor as opposed to a more domed zinc plated motor on the original unit. Same symptoms, with even more reluctance to rotate.
Both motors make strange noises before and after rotation (presumably when they should be rotating).
This could be two bad motors, in which case which variant should I tackle to learn how to re-grease these?
Alternatively if two units have the same fault having changed a component, decades of troubleshooting aircraft electronics tell me that I may be changing the wrong thing.
Are there voltages to check with meter or scope to ensure the motor is getting the correct supply? (and then presumably head off in search of bad joints on connectors.
Photos attached. Video trying not to upload - is there a limit on clip size?
Solved the video clip problem.
it's in this zip, I hope
!CD50.zip
So, have you opened the motor and re-lubricated it (them)?
This is mandatory anyway. Just do it however daunting this may seem
Thank you.
I was paying careful attention to Martin's warnings.
(and still need to buy a 1mm allen wrench to get the brass CD clamp off ).
Has anyone made notes on how to strip the motor?
Do you know if there is significant difference between the two types of motor I photographed, which is best to lubricate first?
I've been through the process on the silver colored motor.
The shaft pushed out reasonably easily.
For cleaning I used 90 Isopropyl alcohol. The shaft was clean; I focused on cleaning the brass sleeve it runs in.
When it looked clean to the eye, I lubricated with a couple of drops of sewing machine oil and reassembled. When first pressed back together, it felt tight spinning with finger pressure so I backed it off a little - there is no measurement for that, is there?
When back together the motor still made a noise when it should have been spinning up, then ran with some help from a finger and either stopped, making the same buzzing sound or must have timed out as the CD was ejected.
It may have been running a little better, but well enough!
Any ideas on what the next step is?
Soren's cleaning method was more aggressive; was I too cautious?
I've just tried to download the video, but get an 'Error loading' message!