Where is the fuse location on the CM3588?

[gwondori]

hello.

I am trying to operate NAS with CM3588.

However, I accidentally input my own 48V power supply into the CM3588 (12v) and am currently experiencing the problem of no power supply.

After checking with the meter, it seems that power is not being supplied due to the fuse.

I think I just need to replace the fuse normally, but I would like to know where the fuse is, how to replace the fuse, and which fuse to use.

[leoalister]

Hello, CM3588 NAS boards do not have a user-replaceable fuse. The 12 V input is protected by SMD protection components (typically a TVS diode, polyfuse, or input MOSFET/DC-DC stage) near the DC jack. Applying 48 V almost certainly destroyed the input protection and/or the DC-DC regulator, not just a fuse. There is no specified fuse part number to replace in the official schematic. Repair requires component-level diagnosis and SMD rework (checking TVS diode, input MOSFET, buck regulator). In many cases, the board is not economically repairable.

[vicentewilson]

I am trying to operate a NAS with the CM3588, but I accidentally connected a 48V power supply instead of the required 12V. Now, the device is not powering on, and I've checked with a meter that the issue seems to be related to a blown fuse. What is the procedure for safely replacing the fuse?