The things you can find and get in Holland is amazing right? What's in the left compartment?

Leslie wrote:

The things you can find and get in Holland is amazing right? What's in the left compartment?

It is! There is space for records or a beocord 2000. 

Wouter wrote:

Btw. It is my first vintage product, I think I have a new addiction! (:

You are starting big ! Enjoy ;-)

valve1 wrote:

You are starting big ! Enjoy ;-)

I did! 😁

I've been cleaning the cabinet today, and took away 50 years/2kg of dust. The next step is teak oil. While cleaning the cabinet I took out the beomaster (which gives no sign of life at all) and the beogram (which turns VERY slow at 78rpm only). 

The beomaster:

No signs of life... Checked the fuses, both okay. When plugged into the mains, the transformer gives a hum. When selecting any source, the Radikator moves from 5 to +/- 1 and moves back when pressing off. Where should I start? I couldn't find any lights inside the cabinet, see picture below. I'll need two of those, I have the service manual so finding them will be the biggest problem I think...

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The Beogram:

Needs a new needle since the current one is broken. Turning VERY slow when 78 rpm is selected, but speeding up after a while. I checked the belt which definitely needs to be replaced as it broke of 2 places when I touched it. Furthermore I think the motor needs cleaning so I took it out. Is it possible to open up the motor from the bottom and clean it or should the whole mechanism at the top be disassembled to gain acces to the motor? At last, does the beogram need a recap? I wasn't able to measure anything yet but it seems to me like a good idea to me due to the age. 

The cabinet:

I took out the glass wool used as dampening material for the speaker cabinets and will replace this by some more modern, healthier material. The pneumatic spring of the left door isn't always working, it probably needs some adjustment and cleaning. 

Hi

The beomaster:

No signs of life... Checked the fuses, both okay. When plugged into the mains, the transformer gives a hum.

Caps shorted???

Where should I start?

Recap 🙂

 I couldn't find any lights inside the cabinet, see picture below. I'll need two of those, I have the service manual so finding them will be the biggest problem I think...

Here in Italy that kind of lights are common into ringbell 🙂 check on some electrical furniture shop.

The Beogram:

 At last, does the beogram need a recap? I wasn't able to measure anything yet but it seems to me like a good idea to me due to the age. 

Good idea 🙂

Have a nice day

MArco

I have been inside 12 of these guys and none of the transformers hum, BUT transofmers CAN hum by nature.

Lights are easy to find its 2 pieces 6.3 volt 0.3 ampere for the scale and 18 volt 0.1 ampere for the stereo indicator. socket E10, they are sold abit everywhere. Conrad in Germany for inastance.
The lights dont last long. Martin have adviced 7 volt and 19 volt lamps for longer life, but I havent found lamps with that  voltage, 

As radikator shows life, that means it lives in someway. 


As transformer hums, it could show somekind of shortage inside of of the beomaster so do the error tracking with short monent of haveing the beomaster  on power Dont let it stand on the workbench on all the time.

Some error tracking

Have you tried with other speakers ?, then the internals, and tired the internal speakers with a other amp ?

Have you checked the 3 fuses ?

For error tracking the preamp and the output amp. The 5 pin Tape output should give somekind of line level output from either radio or turntable.  check eventual signal form that output.

My suggestion is to start with this

Christian

ohh  forgot, some models have only two fuses.

 one or two  next to power supply.

 one on the main pcb

What a nice piece !

The fuse on the main board is only for the dial lamps. The fuse and its holder will almost certainly have oxidized heavily, all green-ish.

Separate the transformer secondary and listen. If it still hums, the transformer is probably bad.
If the hum stops, a heavy secondary load could be the reason. Check for shorted output stage
transistors and/or problems with the rectifier, filter/reservoir capacitor and voltage regulator circuits.
A capacitor, 80uF or 125uF or something like that, at the center of the amplifier board could be shorted, that's also quite common.

Martin