Does anyone know these portable HDD recorders? Apparently these are used in conflict zones like Afghanistan, Irak, Somalia, etc. (... someone told me ...) but I wouldn't bet to much on it. They are in fact nice sounding, highly professional and quite expensive.
I have one of those for repairing on my desk, so here it goes:
It comes with a "Power Pack NV-LIB" and here are the 1st two (solvable?) problems: right after the charger input connector is a 5A fuse soldered on the circuit board. Blown out, needs to be replaced. Right after that is an IRF4905 "Hexfet Power Mosfet". Also blown, also will be replaced. I just hope that after replacing these 2 parts they won't blow up again.

Now the main NAGRA V unit: it refuses to turn on, even with a good power-pack. I opened it and checked internal connections, then fuses F1 to F3 (those are all the fuses I could find so far) and so far everything seems to be OK. Are there any more fuses on the main board?

Unfortunately I don't have any kind of schematics on hand and before I mess around with that thing I prefer to ask you guys.

Thanks in advance,

PhantomBox