On 11/27/2011 9:25 AM, Viesturs Lācis wrote:
> 2011. gada 27. novembris 12:17 Viesturs Lācis
> <viesturs.la...@gmail.com>  rakstīja:
>    
>> I checked all 25 leads in D525-to-7i43 cable, they all are good.
>> The only remaining thing, where the problem can be, is the 7i43 card itself
>> (or its drivers).
>>      
> I have an update:
> Card is receiving 4,83 V, but no LEDs turn on, when I turn on the
> power switch for the card.
> Any ideas, where should I look?
>
> Viesturs
>
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>    

If I pull the 5v connector, and leave the 7i43 connected only via the 
EPP cable, I have only a dim yellow PWR light on the 7i43.  With 5v on 
the plug I have a bright yellow PWR light and two RED LEDS to the right 
of the PWR light.

This is with EMC2 not running.

4.83 is low.  I usually see just above 5 volts on most power supplies 
that I check with a DVM.

You may want to try another power supply and pray that your 7i43 
switches on with a higher voltage.

Peter, is chip U1, the power supply regulator chip?   It is an 8 lead chip.

If you can find another one, it might be user repairable if that chip is 
blown.

But you better sharpen your soldering iron tip!    Two magnifying 
glasses and I still can't make out the part number due to the red dot.

Dave

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security threats, fraudulent activity, and more. Splunk takes this 
data and makes sense of it. IT sense. And common sense.
http://p.sf.net/sfu/splunk-novd2d
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