[hpsdr] Where is the power switch on the revision B Board

[Anupam Prasad]

Dear Aivars,

I checked up with the manual and the Jumper Descriptions.

In my understanding, the Hermes can be powered up by the three methods.
a.	13.8 V Independently
b. 	12 V Independently
c.	12 V + 5V Combination (The jumpers have to be set accordingly)

Though the Manual says that the Pin 1 is +ve and PIN is -ve, on my board
(and also on the schematics) the tracks are laid out in such a way that pin
2&3 are shorted. 

I will let you know about things as I find out. Just hoping that I don't fry
up the board. :)

Warm Regards,

Anupam Prasad (+91 7838598510)

-----Original Message-----
From: hpsdr-bounces at lists.openhpsdr.org
[mailto:hpsdr-bounces at lists.openhpsdr.org] On Behalf Of Aivars Straupe
Sent: 06 November 2013 10:44
To: OpenHPSDR
Subject: Re: [hpsdr] Where is the power switch on the revision B Board


Anupam, I guess you are going in wrong way. You stated about 12V PS, but
there should be, or clear 13.8V, or 12 and 5V separately. And CAREFULLY
check jumper positions against manual. I guess, I checked it 10 times,
before fire up :-) And voltage pins as well. I used old PC ATX PS, floppy
drive connector went in place on Hermes almost good. But I do not remember
about pins, was they correct or not. That's not a problem to exchange them.

 
Aivars.
***** High Performance Software Defined Radio Discussion List *****



 1383716405.0