top job John, and thank you for an interesting thread, your pins will go out tomorrow or latest Monday. Happy new Year

Cool, thanks Søren. 
I am following your nice M-70 thread.  Those are going to sound great when you are finished.

I figured it would be nice to have a thread to group a bunch of adjustments and fixes for the 400x series of turntables. They are amazing machines and I am even more impressed with them after going through these repairs.

Congrats.. gorgeous.

Don't you want to remove the sticker above the control panel ?

It's amazing how these kind of threads, full of photos, can be useful, even for projects that are unrelated to the specific topic. Just to see how the thing is build inside. Just to see some particular construction details. Many people around here do it. Thanks to all. A classification of threads by models or family, on the forum, including the archived forum, might be useful, regardless if it's workbench, vintage etc.

Guillaume

hamacbleu wrote:

.

Don't you want to remove the sticker above the control panel ?

Guillaume

Hi John,

Absolutely beautiful thread! It will be very useful when I finally get to my BG6000! I am a bit confused with regard to the versions after studying your pictures, though. What is the main difference between the 5523 and the 5513 versions? It seems that your 5523 pics look very similar to what I found in the 5513 that I just 'futurized'. Another version question would be the difference between the 5501/02 versions and the 03 version that you are showing...are there any, or is this just US vs. European versions?

Thanks! Keep up your excellent work!

Rudy

sonavor wrote:

hamacbleu wrote:

.

Don't you want to remove the sticker above the control panel ?

Guillaume

Haha....That sticker has been on that turntable for 38 years now.  I figure I'll just leave it on there.  The company I bought it from is long gone now.  I guess someone will eventually remove it once I am gone and my audio collection gets dispersed. :)

You are the first person that has ever noticed it being there.  Good eye for detail Guillaume.

 

Talking about details John,  one picture shows type 5503 Beogram 4001?

Beolover wrote:

What is the main difference between the 5523 and the 5513 versions? It seems that your 5523 pics look very similar to what I found in the 5513 that I just 'futurized'. Another version question would be the difference between the 5501/02 versions and the 03 version that you are showing...are there any, or is this just US vs. European versions?

Rudy

I have the original service manual for the 5513 but it has a supplement section that covers the 5523 and 5526 (BG4004).  From what I can tell, the 5523 is pretty much the same as the 5513 except it appears to be made for people that wanted a B&O turntable for their non-B&O systems. So the 5523 was outfitted with RCA cables instead of the usual DIN.  Of course B&O made an adapter for the DIN plugs to RCA as well. My guess is they wanted to have a model available to the audiophiles that wouldn't like an adapter. The 5523 may have just been for the US market. 

On my 5503, it definitely is just for the US market as the voltage selection switch isn't really hooked up. The 5503 is fixed at 117 VAC. From the 5501 and 5502 service manual though, it appears some early models (maybe the 5501) had the mechanism from the BG4000 for the tonearm position switches. There is an adjustment procedure for that in the manual but the 5503 has a position mechanism similar to the 4002.

It is interesting to see the evolution of the B&O linear turntable from the 4000 to the 4004.  I should receive my first BG4000 this week (hopefully intact).

Leslie wrote:

Talking about details John,  one picture shows type 5503 Beogram 4001?

About the platter's height on my BG4000, I came to the conclusion that respecting the 13mm height cannot make the platter flush with the big panel. And since the latter is not machined, only stamped through, it looks kind of awful...

The SM makes it clear that both conditions should be respected, which is impossible.

So I decided on the flush platter, at the expense of cartridge height, which is now set at 12 mm.

Login to view image

sonavor wrote:

Beolover wrote:

What is the main difference between the 5523 and the 5513 versions? It seems that your 5523 pics look very similar to what I found in the 5513 that I just 'futurized'. Another version question would be the difference between the 5501/02 versions and the 03 version that you are showing...are there any, or is this just US vs. European versions?

Rudy

 

I have the original service manual for the 5513 but it has a supplement section that covers the 5523 and 5526 (BG4004).  From what I can tell, the 5523 is pretty much the same as the 5513 except it appears to be made for people that wanted a B&O turntable for their non-B&O systems. So the 5523 was outfitted with RCA cables instead of the usual DIN.  Of course B&O made an adapter for the DIN plugs to RCA as well. My guess is they wanted to have a model available to the audiophiles that wouldn't like an adapter. The 5523 may have just been for the US market. 

On my 5503, it definitely is just for the US market as the voltage selection switch isn't really hooked up. The 5503 is fixed at 117 VAC. From the 5501 and 5502 service manual though, it appears some early models (maybe the 5501) had the mechanism from the BG4000 for the tonearm position switches. There is an adjustment procedure for that in the manual but the 5503 has a position mechanism similar to the 4002.

It is interesting to see the evolution of the B&O linear turntable from the 4000 to the 4004.  I should receive my first BG4000 this week (hopefully intact).

Based solely on observations, I came to these conclusions:

-All three 55x3 versions of the Beogram 4002 were made for the American market and has a fixed 117 VAC transformer

Then, if you replace x by:

0: AC version with the same big and heavy subplatter as the Beogram 4000. This version can be converted to CD4.

1: DC version with the late platter and DIN plug. This version can be converted to CD4.

2: DC version with the late platter and RCA plug. This version cannot be converted to CD4.

Guillaume