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Piccolo Problem

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analog97

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Piccolo Problem
« on: 5 Jul 2007, 12:38 am »
Just tested my Piccolo today.  DRATS!!  I have a blue LED, but very little volume and poor sound.  All I have is a DMM.  Any hints about trouble shooting are welcome.  Thanks for any leads in advance.  FWIW, I have good solder technique now and have successfully built most of the Hagerman line.  I thought this one would be a breeze...... :(
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hagtech

Re: Piccolo Problem
« Reply #1 on: 5 Jul 2007, 06:48 pm »
Ok, blue LED is good start.  First, check supply voltages all the way through circuit.  At first stage you end up about +7V and -3V, I think.  You can also run high level test signals through the device.  I typically test on bench using 0.1Vrms input sinewave.  Can post photo?

jh
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analog97

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Re: Piccolo Problem
« Reply #2 on: 5 Jul 2007, 07:08 pm »
I will try to post a photo later after work.  Only have a DMM, so it's unclear to me how to test.  I will try to test the supply voltages, as you suggested.  Thanks.
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analog97

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Re: Piccolo Problem
« Reply #3 on: 5 Jul 2007, 10:24 pm »
Piccolo.jpeg
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