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 Post subject: Sony 8GB (microvault ?) - broken
PostPosted: October 15th, 2012, 15:39 
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http://daneodzyskaj.pl/pen_drive/sony_8gb/1.jpg
http://daneodzyskaj.pl/pen_drive/sony_8gb/2.jpg

PCB is damaged. USB plug has been bent and printed circuit has been broken.
Does enyone know where can i directly connect point s 1-4 ?

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 Post subject: Re: Sony 8GB (microvault ?) - broken
PostPosted: October 15th, 2012, 16:58 
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Follow the traces on PCB.

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 Post subject: Re: Sony 8GB (microvault ?) - broken
PostPosted: October 16th, 2012, 5:21 
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It looks like it goes to the other side underneath the controller chip

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 Post subject: Re: Sony 8GB (microvault ?) - broken
PostPosted: October 16th, 2012, 8:03 
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check first for continuity on the data tracks ( 2 and 3 ) and you must resolder them to the conector in the same order, the other two pins are gnd and Vcc


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 Post subject: Re: Sony 8GB (microvault ?) - broken
PostPosted: October 17th, 2012, 3:56 
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PCB is in crushed

http://daneodzyskaj.pl/pen_drive/sony_8gb/3.jpg

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 Post subject: Re: Sony 8GB (microvault ?) - broken
PostPosted: October 17th, 2012, 4:55 
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Easier to help you with that picture. Since Vcc is not broken completely you might be able to see the track and you can solder directly, or check where the track goes to find a better spot to solder.


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 Post subject: Re: Sony 8GB (microvault ?) - broken
PostPosted: October 17th, 2012, 4:57 
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Don't forget to solder a new resistance. ;P


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 Post subject: Re: Sony 8GB (microvault ?) - broken
PostPosted: October 17th, 2012, 6:16 
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Thanks.
We have tried it but it didn't help.

Looks like there are more broken tracks.



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 Post subject: Re: Sony 8GB (microvault ?) - broken
PostPosted: October 17th, 2012, 11:59 
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Before doing any more work I would use a multimeter to buzz the through the pcb connections. You will find the + and - data lines go directly to the controller chip so they are easy to check.

The other tracks are more difficult but you shoud be able to find where they connect on the pcb reverse side.

If you can't repair those tracks then solder directly to wherever you found continuity.

That missing resistor r25 is an unknown value so you will have to make a guess unless somebody can supply the information.
Could it just be 0 ohms?


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 Post subject: Re: Sony 8GB (microvault ?) - broken
PostPosted: October 18th, 2012, 5:43 
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R25 is 2,2 ohms.
The problem is with yellow circled areas.
It's VCC, so wrong connection can do more damage.

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