Repairing BASH board in Dynamo Sub (original)

[sckramer]

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!

[luiscon14]

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.

[luiscon14]

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.

[Horace123]

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!!