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Thursday, July 5, 2018

Beogram 4002 (5513): First Record Play Testing

Finally....time to see how this restored Beogram 4002 (5513) turntable does playing a record for listening pleasure.

First though, a couple of pictures showing some tidying up of some loose ends. In the last post I neglected to post the pictures of installing new cabinet guides and the rework of the phono cable.
So before showing the first record play photos here are a couple of pictures showing the Beolover Beogram 4002 3D cabinet guide parts.

There are five total cabinet guides. The last photo shows the lone black one that is used for the front center of the cabinet so it isn't noticeable. Note that these are not washers. The cabinet guides hold the plinth in place but allow it to slide forward and backwards for opening up the Beogram cabinet. The early Beogram 400x turntable guides were made out of a brittle plastic that almost always broke. In the later model Beogram 400x turntables B&O switched to a metal guide to fix the problem. The Type 5513 Beogram 4002 was before the metal guide came out. Even though they are just a small part they make a big difference. A lot of people will just substitute flat washers but they don't provide the function needed.

Now the phono cable. The original DIN plug cable had already been replaced and while the replacement was a nice cable I didn't like the way the wires terminated in the P9 plug to the Beogram phono output board.

I removed each P9 pin and reworked the wire connections. The wires connected to pins 2 and 4 are not used so I removed them.

Here is the reworked cable plugged into the Beogram phono output board. I reused the blue wire and its P9 connector for the left and right channel shield wires. The small switch we install allows the option to short the shield wires to the chassis ground wire or leave it open.

That is a lot cleaner looking. I can live with that.

Time for some lively Jazz from Buddy Rich.

I have used those for Beogram play tests before and keep using them for some reason :-).

Next the Beogram will go through a day of testing like this while I make sure the set down positions are good, the phono muting delay is satisfactory and there are no tracking problems. Once those things are satisfied I will install the remaining cabinet pieces and go through a week of listening tests before this Beogram's owner picks it up.

Thanks to Beolover by the way for another excellent job on parts and the platter motor restoration.

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