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
Good morning guys,
I had chance to buy some stuff for cheap : a Beocord 5000 (pizza) and a Beogram CD50 for 15€, a Beogram 1202 for 20€ and the guy also gave me some goodies (Papers, papers, papers and a hinged Beogram cover).
Of course none of the three device is working perfectly, or at all.
I decided to start with the CD50, essentially because i've read about the fire proof resistor inside the Beocord and I dont know a good source for component. Anyway another story…
I've also read Søren's thread. I'm not as handy with electronics I may be with papers, but I believe it could be a good way to learn.
So I opened the CD50. Inside its dusty, sticky, like if some coffee was drop inside but without any signs of liquid, and there even was a mummified spider!
Another thing I noticed, if it can be in any help for further diagnose is that the drawer and the front panel dont lineup properly. Maybe its normal but never notice that in any picture.
All I know from previous owner is "he changed the belt, but it still never worked".The unit turns on, the drawer come out slowly but need a little help to close.The disc elevates and then, nothing else. It release and the drawer starts an infinite open-close dance.
I would like to start by lifting the CD plate and clean an lubricant all the cogs beneath, but I've read about very sensitive cogs placement and I'm afraid to damaged it more.
Are the cogs positions important for all cogs or just the drawer ones? I ask because the carriage wheels seems infinite to me, and without any electrical switch.
Another thing is a long spring an the side of the mechanism. It is screwed to the CD chassis and goes under the CD chassis top plate. It looks like a wrong placement but I can't find him on the Service Manual:
Here I am for now. Any advice would be helpful, to make it work again.
Thank you alls.
The door can be adjusted. See in the servicemanual or look inside the unit.
The spring is for grounding the metal on the underside of the top cover. It shouldn't be under the drive.
I have the correct safety resistor for the Beocord as well as new belts for the tapedrive and for the drawer motor and new tires for the drawer.
Martin
Thank you Martin for your prompt reply.
Good to know for the resistor! For the rubber parts, the seller claimed to have changed them, but quite sure they must be chinese or portuguese ones!I'm not there right now, but I'll keep in mind.
Any input on the cogs position care?
I've teared it appart and cleaned and lubricate all the wheels and contact switches.Put back in place everything and adjusted the door (thanks Dillen).Lot of remains of the old belt everywhere…
But now the CD don't stay clamped: I can see the platter raising all the way up and then going down a little bit. But the disc stays on the lower platter and when the motor starts to spin the disc don't. Then then lower part raise again, the disc against the top part and bring it back to the outside.
I've tried to add some spacers under the disc but it just stuck the motor who start to spin but can't.
I've also slightly seen the carriage moving. By the way what would be the "resting" position of the laser head: to the outside of the disc or to the center of it?
Any idea for the disc not clamping would be great.
Thank you.
After further investigations and inspired by member chartz I managed to pull some sound out of the Beogram CD50.It revolves around that big nut which, unfortunately is stuck in my case with no hope I see to adjust it.
But with some fiddling which details I will spare you because they gonna hurt you, the disc finally clamped and did play.
So the problem is only mechanical. Good thing.
If anyone knows how to remove the stacked nut, I would be grateful.
(One more saved from trash!)
The gears, disc tray etc. needs to go together in correct timing.You should mark everything when you take it apart, because it needs to go back together in exactly the same way.One tooth off and it won't work.
Stacked nut? - Which nut is that?
Dillen:The gears, disc tray etc. needs to go together in correct timing.
Then I was lucky because that parts seems to work (finger crossed).
Dillen:Stacked nut? - Which nut is that?
The brass nut above the cam. I know it's secured with a screw on the side. But I've tried 1mm allen key, and 1,5 (measured 1,2 mm) and none of them work.
Hi,
Little bit off topic but it don't need a thread on its own and as mentioned it here before:
The Beocord 5000 is up an running too. Just needed cleaning and a little bit of lubrification and one belt had wrong path.Now works well from the drawer to the transport!
Do anyone know which belt as which purpose?I mean, on the underneath side there is the the flat big belt (capstan) and another one which uses three wheels. Does it have a special function?On the top, i can see the little on is the counter right?
Beogram CD50:Some nuts have two grub screws 90deg apart.I don't remember the size of the hex, but if a metric size doesn't fit, you could try a US/imperial-size.
Beocord 5000: The flat belt is for the capstan, the other belt is for wind/rewind/take-up functions, chosen and coupled by solenoids and gears.The small belt on top is for the tape motion sensor.
The nut has definitely two holes 90° apart but one is empty. I will try two find the correct key to see if it helps.
Thank you for the belts function explanation.