20 Most Recent B&K AVR-202 Questions & Answers


hi,

Check the speakers first. Remove all the speakers from the amplifier and switch ON the amplifier. If the amplifier switch ON from standby without any trouble then any one of the speaker is damged or the wiring to the speaker have some problem. . if it doesn't switch ON from standby there is internal hardware faulty.
IF so Please take it any good electronic reparing shope near you. Becuase you hve to check the voltages at all the outputs of the amplifiers. In this amplifier user can't do any thing. To work wit this amplifer need a throuh knowledge in electronics. If you do someting wrong the amp will became irreparable, because its amplifier stage work in high ampere power supply.
OK

B&K AVR-202 | Answered on Sep 20, 2011


Possibly. Try swapping the other speaker to that channel to decide.

B&K AVR-202 | Answered on Dec 09, 2010


Part of the power supply is a filtering stage that completes the conversion from AC current to DC. The "cap" is a capacitor that furnishes voltage to help smooth the alternating current that is left from the rectifier stage. These will start to fail over time. While it is a relatively simple repair for anyone that does this for a living, I would not suggest this as your first repair. Expect a parts cost inthe $20 range plus the local labor rate for the entire repair.

Dan

B&K AVR-202 | Answered on May 20, 2009


Well where do I begin. First, the polarity switch on the back might eliminate or reduce the hum, but by todays standards the way it functions is a deadly safety hazard (remember all the musicians that got fried in the '60's and early '70's?). That circuitry should be disabled and the unit retrofitted with a 3 prong power cord.

Next, the tube filiments are powered by AC voltage, and there is a control on the chassis for balancing it in order to reduce the hum. It could be toast or mis-adjusted. There could be a tube or other component problem causing your hum. The DC power supply could have faulty filter capacitors.

Another source of problems in these amps are the carbon resistors that introduce static noise in the audio. These should be changed to much better carbon film resistors.

If you are not comfortable working on electronic equipment with voltages in excess of 300VDC you should bring it to a pro audio repair shop.


B&K AVR-202 | Answered on Apr 28, 2009


Ok you need some tools for it: Oscilliscope, Multimeter.
And here is the link:
http://www.audiokarma.org/forums/showthread.php?t=5634

B&K Audio... | Answered on Aug 29, 2014


Hi...

What model B&K is it?

I'm not sure if that model uses internal fuses on the outputs

Thanks

B&K Audio... | Answered on Aug 17, 2010


Hi there,

Well you can  load BFD filters. But before you inserted a BFD between your AVR and sub you simply set up the balance between all your speakers and sub with the AVR trim controls and AVR test tones. Then your master volume of the AVR was your main volume control.

The situation hasn't changed much after inserting a BFD, other than you should not disturb the setting you set on the AVR sub trim because you may cause clipping or low level inputs into the BFD. So, use the subwoofers own amplifier volume to balance levels rather than the AVR sub trim.
Thanks

B&K Audio... | Answered on Sep 05, 2009


Altec Lansing are not a good make. They are at the cheap and cheerful end of the market. I had a 2+1 ordered specially for me and it hissed even with the power switch turned off. I gave it away.

Try this. Remove the plug from the back of the computer and plug it into a phone. Try playing music or a YouTube video through it. If it does that successfully, the problem is interference from the computer. That is often caused by being close to a power wire.

Audio Players &... | Answered 4 hours ago

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