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Gridseed / burnt down
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Topic: Gridseed / burnt down (Read 880 times)
steff119
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Gridseed / burnt down
April 22, 2014, 05:20:33 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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jd_grinder
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Re: Gridseed / burnt down
April 24, 2014, 11:10:42 AM
#2
the component marked FB is a ferrite bead(5 on your marking). the rest are capacitors.
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Re: Gridseed / burnt down
April 24, 2014, 12:36:23 PM
#3
Quote from: jd_grinder on April 24, 2014, 11:10:42 AM
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.
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J4bberwock
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Re: Gridseed / burnt down
April 24, 2014, 02:20:31 PM
Last edit: April 24, 2014, 02:54:01 PM by J4bberwock
#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
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