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Sony 8GB (microvault ?) - broken

Posted: October 15th, 2012, 15:39
by laptokowiec
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 ?

Re: Sony 8GB (microvault ?) - broken

Posted: October 15th, 2012, 16:58
by arvika
Follow the traces on PCB.

Re: Sony 8GB (microvault ?) - broken

Posted: October 16th, 2012, 5:21
by laptokowiec
It looks like it goes to the other side underneath the controller chip

Re: Sony 8GB (microvault ?) - broken

Posted: October 16th, 2012, 8:03
by Izualim
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

Re: Sony 8GB (microvault ?) - broken

Posted: October 17th, 2012, 3:56
by laptokowiec

Re: Sony 8GB (microvault ?) - broken

Posted: October 17th, 2012, 4:55
by Izualim
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.

Re: Sony 8GB (microvault ?) - broken

Posted: October 17th, 2012, 4:57
by Izualim
Don't forget to solder a new resistance. ;P

Re: Sony 8GB (microvault ?) - broken

Posted: October 17th, 2012, 6:16
by laptokowiec
Thanks.
We have tried it but it didn't help.

Looks like there are more broken tracks.


Re: Sony 8GB (microvault ?) - broken

Posted: October 17th, 2012, 11:59
by dick
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?

Re: Sony 8GB (microvault ?) - broken

Posted: October 18th, 2012, 5:43
by laptokowiec
R25 is 2,2 ohms.
The problem is with yellow circled areas.
It's VCC, so wrong connection can do more damage.