Case:
The customer reacted the computer to disassemble the chassis at work to clean the dust, accidentally touch the cone to the circuit board of the hard disk, and then smoke.
Solution:
This situation should be burned by the circuit board, because the motor chip has been penetrated. Now the only thing that is worried about is whether the magnetic group inside the disc body is damaged. Before the circuit board burned, the magnetic group was damaged and polluted the plate.If this is the case, it is not easy to deal with.Use a multimeter to test the magnetic group and motor of the disk body to test the ground resistance value, and it is found normally.So the circuit board began to replace the circuit board. Mai Tuo’s replacement circuit board did not need to change the ROM.