I have a HD sansung SP0802N not completely stopped linking someone has a hint of what could be?

_________________
Luiz

Again Luiz?

What do You doing?

Can you write the problem exactly?

Regards,
Janos

The Hard Disk simply not turn on without sign of life, not engine turns, I wonder if it is a fuse, which possíves components that can occasionally agradeços the attention

_________________
Luiz

1. try the diode.
2. chech the heat of the chips
3. chech the terminal log
...
4. check the preamp for short circuit and
try swap the pcb from another SP0802N.
If it spins up, than down, swap the flash.

Janos

....
5. if the pcb swap + flash swap = not spining again, you need a professional help, to fix the fw, or need to find a maching pcb with maching fw version!

Regards,
Janos

Sure, the engine is ok, a PCB heats you can not indicate the components on the board with possible trouble I confirm that I am on track .. checked the voltages to the HA13627 most do not know if this IC is being fed or voltage is a fuse of protection, thanks for your help

_________________
Luiz

Try PCB swap first, the list of the test points to check is too long and also cannot post here the waveforms (Scope). Everything could be from a simple fuse/diode/resistor to the HA chip KO. If no spin up and always BUSY then maybe there's a problem on the flash or on the Marvell chip or on the driving circuitry. I can solve/diagnose it without desoldering and with no hassle (if the ICs are OK) but I have developed a proprietary solution so I need the drive or at last the PCB.