[DSP-10] Initial testing
Richard Ewing
[email protected]
Thu, 24 Apr 2003 13:02:47 -0700
Gerard,
Go to : =
http://home.teleport.com/~oldaker/doc_files/dsp10_initial_testing.doc
download the initial testing data. Jimmy and I had some different readings=
=20
but were OK. Hope that helps.
de KO7N
At 09:30 PM 4/24/2003 +0200, you wrote:
>Hello,
>
>Power has been fired on the board ! No smoke signals are good news ;-)
>
>I applied 13.8V because I had only this kind of power supply available. Of
>course, I used a radiator mounted on U101. Most of the voltages are nominal
>except those which are directly related to the supply voltage. BTW, some=20
>offset
>are not nominal :
>
> * U105 pin 3 is 2.3 V instead of 3.5 V
> * U106 pin 3 is 3.7 V instead of 4.6 V
> * Q4 source is 1.38 V instead of 0.91 V
> * U8 pin 3 is 2.5 V instead of 2.8 V
> * U9 pin 3 is 3.4 V instead of 3.6 V
>
>I suspect something wrong for U105/U106 but resistors values good.
>
>--
>73 G=E9rard F6FGZ
>
>
>
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