Repairing BASH board in Dynamo Sub (original)

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sckramer

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Hi does anyone have schematics for this:

here are some pics of the board:

http://www.box.net/shared/90xygqzogn

http://www.box.net/shared/zm22vvcrtr

(BASH 600131 Rev. A), found a bad power mosfet (it's shorted out)
parts location on the board is: Q401 and Q402



I looked at the parts, here are the numbers I can barely make out-- IRF740 IvR416F

searched digikey for something containing the first set of numbers

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=IRF740PBF-ND

but not really sure if these are correct--



Does any an info or links to the exact parts I need?

Thanks!
 
What did you do?

Hi, I have the same problem, I dont know if I should get a new power unit or repair mine. Has it failed again after you fixed it? Im afraid it may be a common problem that will repeat over and over again.
 
burned parts

My Mosfets are similar but not exactly the same. I have:

one says:
IRF 740
IvR 530P
11 (8A) 6A

the other says:
IRF740
IvR 530P
11 (FK) 6A

and there is a green disc that says:
DSP
104

those are burned, the rest of the power supply is working ok. this webpage have a lot of electronic components (www.mouser.com), I will ask them if they have this parts. Anyway I already ordered a new power supply and I will compare the new ones with the old ones.

Probably they changed some parts to make it more reliable.
 
Hello luiscon, Did you order the power supply from ML? How much did it cost? Did it look any different than the old one?
Thank you!!
 

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