[Dillen]

When you press play, Beogram CD50 will:
Move tray in.
Check for presence of disc.
If disc is present, lift disc to engage with motor spindle hub.
Run trackingmotor to make the laser carriage reach the track 0 switch.
When track 0 switch is reached, start disc motor.
When disc motor is running, switch on laser and read TOC.
Etc…

Your deck stops at moving the carriage.
It seems the carriage is all the way out – it should move all the way in. (CD’s play from inner tracks out).

You tell that you have taken it all apart and put back togehter. Are you sure you got the tracking motor polarity right?

Martin
(For reasons unknown to me no longer Dillen)

[Dillen]

The resistor in question is in series with the motor and is there to allow the safety circuit to monitor the motor current.
A too high current will cause a high voltage drop across the resistor (that’s ohms law), again causing the
monitoring transistor to issue a signal to the tape controller to stop the drive (in some Beocords/Beocenters take it into standby).
The resistor will also double as a safety fuse in severe cases, so DON’T fit a higher wattage resistor unless you want a house fire!

The resistor is not the problem – it merely indicates a problem.
Check the motor in the tape drive – seized?
Check the reel tables – seized?
And if the drive is the one-belt type, check the small idlerr at the extreme corner of the drive – seized?
Take apart, clean and relubricate accordingly.
Finally, check the power supply voltages – is the motor running at all?

The resistor is not marked as a safety component in all manuals, but it really should be.
Fit a good fusible (or at least flameproof) type of resistor.

Martin
(Apparently there is no longer a member called Dillen).

[Dillen]

Steve at Sounds Heavenly wrote:

Hi Beoworlders, Please come and join me for a VERY special video premiere – a private guided tour of the World’s largest B&O collection of 1,000 items dating back to 1925! The video goes live at 12pm (UK) or 1pm (EU) on Friday – see you there!

Kind regards, Steve.

 

It’s a very impressive collection indeed – no doubt about that – and it does show some interesting specialties and rarities.

The collector(s) themselves may feel that it’s the best or finest collection in the world, and others may agree as this would be a decision to be made by the individual viewer.
I would tend to agree myself.
However, calling it the largest collection in the world would be factually wrong.
It’s far from being the largest collection in the world. And not the largest in Denmark either.
Keep in mind, that not all collectors like to show off their collection.
Based solely on collectors I am aware of and collections I personally know of and/or have seen, I would say its perhaps in the top ten in Denmark and top twenty internationally.

Impressive and interesting nonetheless, and the guys behind it are great.

Martin
(For reasons unknown to me apparently no longer Dillen).

[Dillen]

Following B&Os system BC are Beocords.
BCT are Beocenters.

Martin
(For reasons unknown to me apparently no longer Dillen).

[Dillen]

Transport screws fully losened?

Martin

[Dillen]

Mark-sf wrote:

There is no switch involved. The direction and action is controlled by two pins, 21 and 22 on IC8 that provide a differential voltage to dual op-amp IC9. I do not have access to the service manual that may explain how end of travel is sensed.

It’s not.
The motor runs for a preset time.

Martin

[Dillen]

The reed elements closest to the end of the board are indeed mute switches, and they
are known to fail. I have replaced many.
Cut them at the bend, pull them out, insert new and solder to the stubs of the old.

Martin

[Author]

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