[Dillen]

Danish Sound Parts har originale her.

Glem de kinesiske forfalskninger på Ebay og allevegne.

Martin

[Dillen]

Any DC voltage on the motor tabs?

Martin

[Dillen]

1. Record ends can be troublesome.
   Whereas there are clear standards for where the lead-in grooves are located (with reference to record center), there are no standards for lead-out.
   Is the problem present with all records?
2. In standby place a tracking force scale under the tonearm. Press and hold >> for a few seconds and the tonearm will lower onto it. When done, press STOP.
3. Depends on what stuff is on the arms.

Martin

[Dillen]

Beocenter 5000 has a quite powerful and well-sounding amplifier.
Any passive speakers will suit it – the larger the better results.
It will drive even very large Beovox models, so you can let your room and wallet decide.
I would say anything from Beovox S45 up.

Martin

[Dillen]

Solder joints crack from microscopic vibrations, typically eminating from the mains transformer and from the general
operation of the deck.

I’m sure it can be repaired.
Any french repairers here?

Martin

[Dillen]

What is the problem with the two original woofers?

Martin

[Dillen]

The local B&O shop may not be able to repair it. That’s probably true.
But there are countless others who can.
Parts are usually no problem. Most problems are caused by aging capacitors and bad solder joints. All perfectly fixable.

Where are you?

Martin

[Dillen]

TR4 or TR5 shorted.
Replace both (BC337).

Martin

[Dillen]

Nice work.
And next the grey ones in the amplifier stages.
And – remember – no low-ESR capacitors in these circuits!

Martin

[Dillen]

Have you checked the backup battery?

Martin

[Dillen]

Glitch wrote:

Matching the veneer across the top of both pieces was a nice touch.

Well spotted. 🙂

Martin

[Dillen]

Have you checked if the lower glass panel has come lose?
If the glass comes away from its plastic holders, the conductive rubber bumpers will no longer
have contact.
It can also happen, if the glass was fastened using very thick tape.

Martin

[Dillen]

-Ripple on supply to the processor.
-Bad reset circuit.
-Bad processor.
In that order.

Martin

[Dillen]

Losen the three transport screws. They are found under the platter.
With the transport screws tightened for transport the belt will almost always come off when the motor is started.
The same goes for Beogram 1203, Beogram 2000, Beogram 3000.

Martin

[Dillen]

The wooden trim strips are to narrow to really make Zebrano look any good on a BG8000, I think.
I did a Beosystem 1700 in Zebrano many years ago.
To this day I am not sure if I really like it – or even if I actually liked it back then. But the original veneer was too far gone,
so something had to be done, and I was keen on trying.

Martin

[Dillen]

I don’t think I have any of them at present, but it would perhaps be helpful, if you could tell the type of
the single original woofer you have, so they can be matched.

VIFA M25WN-40
SEAS 25 F-EWR
SEAS 25 F-EW

Martin

[Dillen]

And a Beogram 4000C with several defects.
Impressive.

Martin

[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

[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

[Author]

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