A few months ago, I purchased a beogram 8000 with a beomaster 8000 and beovox 150 speakers for the high sum of $150. It came with a MMC20 CL cartridge. I then purchased a beocord 8000. I have questions on each piece, hope i can get some answers. BTW, I already took the beomaster apart out of curiosity, its such a wonderfully put together piece of equipment. I plan on re-capping every unit as well. 

-Beomaster

I tried hooking it up to some speakers I had with a tv input to the Tape In. I got very LOUD sound coming from the speakers, and immediaetly switched the speakers off. This was with the volume all the way down. On tuner, the speakers played fine. Some of the digits on the display are missing segments as well.

I am assuming a cold solder joint for the display?  Does anybody have any advice on re-capping? A list of components maybe? I have the service manual, but is it accurate? How are electrolytics marked? Is tape in capable of accepting a regular input?

 

-Beogram

This one seems to work fine, except it drops the stylus. Should it lower it slowly? I am worried that the stylus will break if its dropping the cartridge.The cartridge looks like its very tip is broken. It skips, but sound does come out of both channels. Can this guy be re-tipped? I have a cartridge coming in from soundsmith. But im afraid to put it in till i know this tonearm is working properly. 

 

Beocord

I cant test it as it needs belts, where can I get them, and how does this unit come apart to service?

 

Beovox

Where can i get the foam for these guys? I would rather send the drivers to someone as they are of tight tolerance, but a foam source would get me on the right path. Are these guys old enough to warrant a re-cap?

 

Any and all help would be greatly appreciated. I already LOVE this beogram and want a 4000 someday, I really am excited to get it all running again.  

  

 http://www.flickr.com/photos/14683866@N03/2994445660/sizes/l/in/set-72157608576196246/

 

first, welcome to beoworld!

second, great project -you have come to the right place!

Thanks for the welcome!

One more question, I just bought a din to rca adaptor for the beogram....where do i hook up a ground?

 

FYI, im somewhat experienced in vintage gear.

 

This is my biggest restoration so far

http://www.audiokarma.org/forums/showthread.php?t=172877

 

I think the beomaster will be just as impressive! 

Try sending Martin Olsen (known as Dillen on this forum) a PM. He can supply belts with fitting instructions for the Beocord. Relatively straight forward to fit them too :)

secondslc:

One more question, I just bought a din to rca adaptor for the beogram....where do i hook up a ground?

It's the sleeve of the DIN connector.

Thanks for the link on the Marantz, I love looking at the insides of this kind of machines even though they are from the wrong camp... An oscilloscope display in a receiver! What will those crazy kids come up with next?

Oh, that shoud be easy to rig up! 

http://www.youtube.com/watch?v=-ZJXjPm2QD0

Stare deep into the scope. Marantz isnt from the wrong camp, its pretty, sounds pretty, and is built real well. B&O with an american flavor and Japanese build quality.

 :D

 

 

 

Hi D,

I love working on the vintage stuff !!!!

My personal favorites are Panasonic FM Radial Electrolytic capacitors for anything above 10uF, Wima MKS2 Polyesters for 10uF and smaller. Yes - I replace Electrolytics with Non-Polar Polyesters wherever possible.

In the audio stage, I use Elna Silmic, or Nichicon Muse, and for the large power Cans - Panasonic TSHA.

I also replace the 10.7MHz IF Filters with modern Murata low-loss (<4dB) filters, with not more than 180kHz bandwidth. That generally requires a realignment, with spectacular results afterwards.

All are available at Digikey and Mouser.

Regards

Menahem 

 

Hi,

Well done, great find at an unbelievable price! The beomaster alone in working order is worth more than USD500, if mint more.

All worth getting back into working order.

You can download the service manual on beoworld but you'll need to join as at least a silver member.  

Martin can also assist with the caps as he has kits for most likely all of these units speakers incl, no need to search for all the various sizes, unless you want to ' upgrade' as someone else has suggested. He also can possibly advise on both the LED and the foam surrounds.

Well good luck your sure to enjoy this process and even more the end result, they also look to be pieces in very good condition cosmetically.

Laurence. 

 

yachadm:

Hi D,

I love working on the vintage stuff !!!!

My personal favorites are Panasonic FM Radial Electrolytic capacitors for anything above 10uF, Wima MKS2 Polyesters for 10uF and smaller. Yes - I replace Electrolytics with Non-Polar Polyesters wherever possible.

In the audio stage, I use Elna Silmic, or Nichicon Muse, and for the large power Cans - Panasonic TSHA.

I also replace the 10.7MHz IF Filters with modern Murata low-loss (<4dB) filters, with not more than 180kHz bandwidth. That generally requires a realignment, with spectacular results afterwards.

All are available at Digikey and Mouser.

Regards

Menahem 

 

 http://www.audiokarma.org/forums/showthread.php?t=155960

I absolutely love Elna Cerafines and used them in my first restoration above, but they are expensive and hard to find in the states. I use Panasonic FC or FM in any other situation. 

http://www.audiokarma.org/forums/showthread.php?t=172421 

Above is another unit I brought back to life, I have elnas ready to be put into it, but it sounds so good for now. :)

 How can I re-align the tuner? I would love to do upgrades while in there, but getting it re-capped sounds like a good first step. 

 

How do the boards come out of the unit? They have clips, but are they screwed in as well? 

Hi D,

I have not opened a BM8000, so I wouldn't know anything about disassembly. Perhaps one of the other members can chime in and help here.

Tuner alignment is an art, and requires the right equipment - at a bare minimum a good quality oscilloscope, with a bandwidth at least as high as the highest frequency you want to check - in this case FM goes up to 108MHz, so the Oscilloscope should be a 150MHz unit at the minimum. I prefer Analog Oscilloscopes (just like I prefer Analog Stereo equipment)!

You also need an AM-FM Stereo Signal Generator, and a Distortion Meter.

Those are the bare minimums (Good second-hand equipment is just fine) - that's what I have, and more serious techs have much more!

Check this website for lots of good tips on FM stuff and alignment http://www.fmtunerinfo.com/

 Menahem

What a great project!
When you are done, you will end up with a wonderful system.
Photographs as you go along would be nice for us, we all love looking at others photo's.

Andy T.

photos are obligatory, just look at my other posts :)

 

hope dillen comes to this thread soon. heh 

Hmm...

 

I hooked up a speaker tonight to the beomaster, and the volume will not change. Before I tear into it, does the volume attenuator fail, or could it be a bad connection/solder joint?

 

Any help is appreciated!

The volume control can be a little recalcitrant. Have you got the remote as this should allow you to alter the volume. I find with mine that the volume conytol sometimes needs a little pressure when rotating to get it going.

There are a number of threads on the restoration of an 8000. Look in Workbench area for some tips. The manual we have for the 8000 deck is a late one that relates more to the 8002. I have found the original 8000 one and will endeavour to get this on site this week end.

The cartridge should have a tip like the photo below. The plastic guard in not very important apart from the fact you need to take the loss of weight into account.

The original Beogram 8000 manual is now on site.