BB750 and blown part ,,,,

[Klaus]

I have one BB750 on which the second black chip is blown - NOT the LTNH one - the small black one close to the LED ground pad - so I have two questions actually - what is this chip and where can I get a replacement one.

How do I know this one is blown and why I don´t read the marking on the chip ?

Its actually physically damaged in the middle looking like a vulcano/crater - making both my analysis its the blown part and lack of identification quite obvious /ubbthreads/images/graemlins/grin.gif

TIA for any help

Klaus

 

[cosco]

This should be the schottky diode. I am not sure which type but Wayne sels them on his shoppe. See the "Grey Kit Parts" menu at the bottom.

cosco

 

[EvilLithiumMan]

cosco is correct, here is the link:

http://secure3.dnsaction.com/~anlighte/shop/product_info.php?cPath=30&products_id=146&osCsid=aa8a6056aefb30c6073dad18ed4c1827

The CRS08 is rated for 1.5A, better than the 1A of the 5819.

I lost the same diode on my BB750. And just a couple of days ago my BB500 stopped working - same reason. I did a second 'miracle' repair.

 

[G Pilot]

That is the same part that blew on my Arc board after boosting it?