[hpsdr] Hot ADC

Ray J Ray at w9ray.org
Tue Jan 13 15:09:35 PST 2009


You better read Before you buy...

  Mercury IS SOLD ON AN AS-IS BASIS WITHOUT WARRANTY OF ANY KIND.

All Mercury boards will be tested prior to shipment, and all boards will 
be working when they are shipped. To the extent that we have available 
inventory, we may, at our discretion, agree to a one time only exchange.

This is a low volume production, experimental item. TAPR is a small, 
not- for-profit organization of volunteers who have helped facilitate 
this project because we believe it is a cool thing to have. In order for 
TAPR to be able to offer this board at all, we must rely on the support 
of all users in the HPSDR community. The Mercury board is basically a 
group buy that we have chosen to pre-build because of the difficulty of 
assembly. TAPR expects that Mercury buyers will seek help on the HPSDR 
Discussion List before looking to TAPR for problem resolution.




> This is a very serious production quality issue. Every board having such problems should be turned back to the sender without waiting a minute.
> Who is responsible for the quality check at customer side? TAPR?
> He (it) has to manage the problem now and not assuming we have to sit on the brocken egg!
> Yes, somebody of us may be able to repair this problem at his own risk but the majority shouldn't wait to have their ADCs/boards cooked cause poor production quality.
> Don't be fooled by the fact that at the moment the board works correctly. IC's transistors give up their souls randomly, and sooner or later (maybe in 12 days or months) you will start having strange troubles with the board.
>  


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