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Re: [analogue-sequencer] p3 having fuse issue?

2004-04-01 by Dave Magnuson

At 06:35 PM 3/31/04 -0600, you wrote:
>
>On Tue, 30 Mar 2004, Andy Wilson wrote:
>
>> What you need to do is connect the meter probes to the common and the
>> V/Ohm/mA input and set the meter to measure *voltage* not current.
>> Now apply voltage to the dc input jack of the P3 and measure the
>> voltage between the 2 input pins. It should measure about 9V. If
>
>did that... 7.6v. even after i've removed the fuse, replaced it with a
>wire link, and removed D1, the regulator gets very hot and the P3 does not
>appear to power up. looking at the data sheet, the regulator's ground is
>the middle pin. from that to the third pin (output), the voltage registers
>as .776v.


.776V sounds like 1 diode drop.  I bet you have a diode mounted backwards
right near the power supply

Dave Magnuson



Resonant Frequency:
resfreq@hoohahrecords.com
http://www.hoohahrecords.com/resfreq/index.html

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