Re: Beolab 2 powerlink trigger

liberal — Wed, 05 Mar 2008 11:56:49 GMT

Thank you Hagen,

I shall follow your advice, better safe than sorry!

Re: Beolab 2 powerlink trigger

Hagen2000 — Wed, 05 Mar 2008 05:32:53 GMT

the resistor is not necessary for normal operation. You can not damage the BL2. However you may want to use a 100 Ohm resistor nonetheless to protect your power supply against a short cut in case of any incorrect connection. Simply run the positive output of your 3v power supply through a 100 Ohm resistor ("series" connection). A resistor with a maximum load of 1/8 Watt is sufficient.

Beolab 2 powerlink trigger

liberal — Wed, 05 Mar 2008 05:21:34 GMT

I wish to connect my Beolab 2 to the pre-amp outputs of another manufacturers sound processor, and along with the line inputs, know that I need to supply a trigger voltage to pin 4 of the power link input.

I have contacted B&O, and enquired about the availability of a mysterious ‘Line Adapter’ that seems to be only available in the States, but was informed by Beocare that there is no such item, and they were unable to offer any further advice.

I have obtained a 3v regulated power supply and connected this to pin 4 and ground, to provide the necessary >2.5v required, and the Beolab 2 turns on, my only concern is that, I have been told that the trigger current required by the Beolab is significantly less than the 300ma that my power adapter provides, and I should insert a ‘current limiting resister’ somewhere, and this is where I get completely lost, as is goes way beyond my limited knowledge of electronics.

Can anyone with a better knowledge of electronics, or the Beolab 2 advise

me as I had always thought that is was ok to provide more current that is actually required as the equipment would only draw what it needed.

If I do need a current limiting resister, what value should I use, and where should I insert it.

Many thanks in advance

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Re: Beolab 2 powerlink trigger

Re: Beolab 2 powerlink trigger

Beolab 2 powerlink trigger