[Dillen]

Have you tried it with a record on the platter?
With no record it will only spin briefly – while the record sensing system operates.

The light staying on at all times could be as simple as a shorted transistor.
A bad batch of BC337 was used in production, so it’s not uncommon to see some fail.

Martin

[Dillen]

Typical symptom of a slipping belt.
With the Beogram unpowered and platter lifted off, put a finger on top of the
motor pulley, rotate the subplatter (“skeleton” platter) by hand and feel for friction.
There should be a fair amount of friction. If the belt doesn’t “bite” the pulley but instead just
“skates” on it, replace the belt.

Yes, Danish Sound Parts is both Danish, Parts and Sound.

Martin

• This reply was modified 1 month, 1 week ago by Dillen.
• This reply was modified 1 month, 1 week ago by Dillen.

[Dillen]

The crossover can not introduce a signal. It’s all passive.
All sounds come from the amp.

But it could be, that the diaphragm wasn’t properly centered, so it now rubs on the magnet or center pole piece.

Martin

[Dillen]

When the problem was with the string drive, it’s much more likely that the offset is
between the carriage and the string rather than between parts of the mechanics.
Adjust the black excentric at the foot of the carriage.

Martin

[Dillen]

Not sure if this is what you are doing, but NEVER run these decks without the subplatter and platter!

Martin

[Dillen]

Beomaster 4400 rosewood.
Mint condition.
Completely restored.
Not cheap.
PM me if you are seriously interested.

Martin

[Dillen]

Perhaps the spindle hole in the large pulley is worn out of shape from using a wrong belt (too tight)?

Martin

[Dillen]

A wrong belt can indeed mess things up. And it can even damage the delicate sinter bronze motor bearings.
It’s impossible to say if what they sell will work. I have seen countless wrong belts sold everywhere.
Correct belts are available from Danish Sound Parts – also the wedge-shaped one for the carriage motor.

Martin

• This reply was modified 1 month, 1 week ago by Dillen.

[Dillen]

Available in polycarbonate, injection molded :
https://www.dksoundparts.com/product/beocenter-5000-7000-7002-spring-holder-for-turntable-dust-cover/

Martin

• This reply was modified 1 month, 1 week ago by Dillen.

[Dillen]

Stay with the original and have them refoamed.
They are unique for these models.
6,4 Ohms if I remember correctly.

Size is not everything when it comes to speaker drivers. Look at the list of T/S parameters.

Martin

[Dillen]

There should be no nylon washer – but in some Beocords you will find a bronze spring plate.
Does the large pulley wiggle on the metal spindle?
Has the thread on the spindle been damaged?

Martin

[Dillen]

Was this Beogram moved to a different mains voltage area?
Replace the transformer and make sure it is set up correctly for the actual local mains voltage before connecting mains.
Having siad that – if the Beogram suffered an over-voltage situation, some of the electronics may also have been damaged.

Martin

[Dillen]

Bad opto sender IR LED at the threaded shaft.
https://www.dksoundparts.com/product/ir-led-for-beogram-6006-8000-8002-beomaster-8000/

Martin

• This reply was modified 1 month, 1 week ago by Dillen.

[Dillen]

Rosewood it is.
Teak is lighter and has a finer grain pattern.
These speakers won’t ever degrade from foam rot, because no foam was used.
They are excellent speakers.

Martin

[Dillen]

It was not meant to be disconnected.
I always desolder the connector from the board.

Martin

[Dillen]

Normally, these remote controls need very little attention.

Martin

[Dillen]

Check for excess ripple on the supply voltages (bad filter capacitors).
If your CPU module has an electrolytic capacitor near the edge connectors, replace it.

Martin

[Dillen]

It’s an oil stop.
It prevents oil from the bearing creeping up the spindle to the pulley.

Martin

[Dillen]

I would never increase the current limit of a fuse significantly.
Sometimes you can find 315mA fuses rather than 300mA. That would be OK.

Martin

[Dillen]

Just a side note:
The 47uF axial capacitor on the subchassis must not rest on the black plastic support.
There is no room for that. The subchassis movement will be restricted by it when the Beogram is assembled.
It must be arranged like the original – down on to the metal.

Martin

[Author]

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