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I have a beoport connected to passive speakers via a beolink passive amp. It works without any problem. Now I want to use a pair of beolab 4 (ice power) with this beoport but there's a permanent hum background noise with powerlink mk1, 2 or 3.
Has somebody an explanation and a solution ?
TVigier: Now I want to use a pair of beolab 4 (ice power) with this beoport but there's a permanent hum background noise with powerlink mk1, 2 or 3. Has somebody an explanation and a solution ?
Now I want to use a pair of beolab 4 (ice power) with this beoport but there's a permanent hum background noise with powerlink mk1, 2 or 3.
Wellcome to the forum, TVigier !
Explanation : At BeoPorts serial # lower than 94247595 Pin 7 is not connected to anything inside the BeoPortSolution:Connect Pin 7 to Pin 2 (make a jumper) - either in the BeoPort or externally in your PL-Splitter
Serial N° of the Beolink PC2 is 942431-- So I've got the explanation.
Many thanks.
TVigier: Serial N° of the Beolink PC2 is 942431-- So I've got the explanation. Many thanks.
Interesting
Mine is 942428-- which explains some issues I used to have when I attached speakers - but I don't any more
I also was "suspicious" that label never said "BeoPort" but rather "Beolink PC2"
It has an item (part?) number 1167566
BeoNut since '75
elephant:Mine is 942428-- which explains some issues I used to have when I attached speakers - but I don't any more I also was "suspicious" that label never said "BeoPort" but rather "Beolink PC2"It has an item (part?) numb roy 1167566
During 2005 "BeoLink PC2" has been renamed to "BeoPort" - all item # for all markets remained the same. (eg 1167566 for the AUS 240V version)If pin 7 (the blue wire in a PL MK3 cable) is not connected there is no data reference ground - the result is hum on ice powered BeoLabs.
Vienna: elephant:Mine is 942428-- which explains some issues I used to have when I attached speakers - but I don't any more I also was "suspicious" that label never said "BeoPort" but rather "Beolink PC2"It has an item (part?) numb roy 1167566 During 2005 "BeoLink PC2" has been renamed to "BeoPort" - all item # for all markets remained the same. (eg 1167566 for the AUS 240V version)
During 2005 "BeoLink PC2" has been renamed to "BeoPort" - all item # for all markets remained the same. (eg 1167566 for the AUS 240V version)
As long as it was only a rename I am happy. At the time, if you recall (like I do ), there was discussion on Beoworld that there was an improved variant (faster chip) that was the cause for the rename ... hence my suspicion/disappointment which has never eventuated into any real issue othe than perhaps ........
Vienna:If pin 7 (the blue wire in a PL MK3 cable) is not connected there is no data reference ground - the result is hum on ice powered BeoLabs.
........... when I was in Newcastle I used the "BeoPort" with the speakers I bought from the Gray Street shop (best location, best layout, great service, great events) and the dealer and I struggled with the hum I could hear - we tried swapping power link cables, and different marks made a difference, but I don't believe that they made the change you recommend.
The Beolab 3s hummed far more than the Beolab 4s I bought in my second year in Newcastle.
Now days back in AUS the "BeoPort" is a true black box as it has no speakers attached (music is delivered wirelessly to BL4s or via ML to the BVs) and so the issue has disappeared.
elephant: ... there was discussion on Beoworld that there was an improved variant (faster chip) that was the cause for the rename ..
Very likely there were small changes - suppliers discontinue componets and forcing manufacturers to adapt their units to thesenew components.
elephant: ... but I don't believe that they made the change you recommend.
I've got the old version --- meaining that I get the humming when connecting my Beolab 4s via Powerlink. Can anyone please explain how I do the trick with connecting pin 2 and 7?
Thanks...
2hansen:Can anyone please explain how I do the trick with connecting pin 2 and 7?
... using a soldering iron with an appropriate (small) tip you'll have to connect pin 2 and 7 on the DIN socketinside the BeoPort by a short piece of wire ... (you can "abuse" a piece of a small paper-clip to make this jumper) If you have the approptiate tools and skills it's an easy DIY job, if not, consult a technician ...