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Beogram 7000: No datalink, no sound, all play functions normal

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Gregg
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Gregg posted on Sat, Oct 3 2020 1:50 AM

I tested my Beogram 7000 with my known good Beomaster 4500 (the Beogram 4500 works fine with it). Pressing play the tone arm moves properly and plays the record; and the cartridge is picking up sound. However, datalink is not working, and there is no sound output. I saw an earlier post where Dillen said to check the connector - could that cause both issues?

Thanks,

Gregg

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styppen
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Suggested by Keith

In order for datalink to work, the Beogram 7000 cable should have 7 pins in the DIN plug. Check if all 7 of them are there. 

This however does not explain why there is no sound. Where did you plug the Beogram in the Beomaster? I think 4500 does not have a RIAA preamp so any AUX, TAPE inputs should work fine.

Keith
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You will not need a preamp, as it was built into the BeoGram 7000.

W.Frankenberg / Gandalf
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the inner workings of the two Beograms are 99% identical!

If the Beogram 7000 does not play a sound, it can only mean that either a cable is disconnected from the 7-pin DIN plug, or there is a fault in the turntable.

May be due to a defective mute switch or the internal RIAA preamplifier.

wilfried

W.Frankenberg / Gandalf
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Sorry double post!

.

wilfried

joeyboygolf
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Someone may have disabled the RIAA to enable the Beogram to work with a Phono input. I once bought a BG4500 that had the legs chopped on the power supply transistors on the pre amp. I just soldered them up again and it worked fine.

Regards Graham

Gregg
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Gregg replied on Mon, Oct 26 2020 8:44 PM

Thanks all for the ideas everyone. I disassembled the DIN plug, and sure enough, every connection was broken except ground. Soldered on a new plug and it is 100% functional!

-Gregg

styppen
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Perfect! Really happy you got it working! 

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