Beogram 4500 RIAA

20 replies

Hi.

 

I just bought a Beogram 4500 and found out that the DIN socket connections was cut off. Can anyone tell me which color connects to which pin? Can´t find it anywhere on the web. The colours are: blue, white, black, yellow, white (again), red and ground

Also, I suspect that my turntable doesn´t have the built in RIAA that I thought every 4500 had. Could it be like that, and if so can you add it so it will work with my Beomaster 4500?

 

Regards,

Sven

All Beogram 4500's had the RIAA pre amp fitted. Are you sure that it is not a Beogram 9500 as that looks identical but does not have the pre amp.

You can check that the RIAA is present by opening the deck up (2 screws under the right hand edge, remove the platter first!). The RIAA board is on the right hand side of the chassis.

Personally, I would send it back whence it came from and demand a refund!

So they were in fact sold without RIAA as an option you mean?

No, someone may have removed or disabled it. I have made that mistake myself. The 4500 I bought had the RIAA disabled by cutting the legs of a couple of caps on the board.

Fortunately, I was able to reconnect the legs and made it work.

This is what it looks like (flipped 90 degrees)

The pre amp is missing! There are a number of scenarios that could explain the situation. I recommend that you send it back and get a refund.

McGruse wrote:

This is what it looks like (flipped 90 degrees)

It looks like the RIAA is missing and someone have modified the BG4500 to use an external RIAA amplifier. It should be located to the right below the tonearm, just where there are 2 mounting brackets for the PCB.

/Jacob

As I suspected then. Do you have a pic of how it should look? I guess it´s supposed to be attached to the two screwholes on the chassis on the right?

McGruse wrote:

As I suspected then. Do you have a pic of how it should look? I guess it´s supposed to be attached to the two screwholes on the chassis on the right?

http://archivedarchivedforum2.beoworld.org/cfs-filesystemfile.ashx/__key/CommunityServer.Components.PostAttachments/00.00.27.77.22/BG4500.jpg

 

/Jacob

Correct. Sorry, I no longer have any  pictures since I stopped selling.

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