Author

Topic: Gridseed / burnt down (Read 897 times)

hero member
Activity: 840
Merit: 1000
April 24, 2014, 10:20:31 AM
#4
According to Bill of Materials and schematics,

FB27 and FB28 are 300ohm@100MHz,3A Ferrite bsead, 1206 size

C201 and C203 are 22uf 6.3v capacitors, 0805 size
C204 is 0.1uF 25v capacitor, 0402 size
legendary
Activity: 1344
Merit: 1004
April 24, 2014, 08:36:23 AM
#3
the component marked FB is a ferrite bead(5 on your marking). the rest are capacitors.


what you said is conflicting.

If FB denotes ferrite beads, then 1 and 2 are ferrite beads. 3, 4, and 5 are caps.
newbie
Activity: 3
Merit: 0
April 24, 2014, 07:10:42 AM
#2
the component marked FB is a ferrite bead(5 on your marking). the rest are capacitors.
newbie
Activity: 5
Merit: 0
April 22, 2014, 01:20:33 PM
#1
Can anyone tell me, what the marked parts (1-5) are?
I have two Gridseed miners (5 chip version, 350 KH/s), where this parts are burnt down.

http://i62.tinypic.com/29d74fd.jpg
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