Question Need help with a Seagate HDD control board

[mirkofc]

Hi, i have a problem with a Seagate ST3000NM0005, it starts spining for some seconds, heads starts working and suddenly spin motor stops and it´s never recognized by the motherboard. The HDD PCB model is 100760706 REVA, I have one similar from another HDD with heads problems so I am thinking to test it in the ST3000NM0005 but i can´t recongnize the ROM chip to transferig it to the spare control board PCB.
Please, Help!

 

[fzabkar]

It sounds like an internal fault rather than a PCB problem.

If you need help with the ROM chip, please upload a detailed photo of the PCB.

 

[mirkofc]

This is the photo of the PCB. Photo link:

https://imgur.com/9mlknGj

View: https://imgur.com/9mlknGj
. Can´t use the insert image tool.
Thanks in advance

 

[fzabkar]

The image isn't much clearer than a thumbnail. I can't make out the ROM, but I would examine the markings on the 8-pin IC at the top left corner of the MCU. The component at the bottom right corner appears to be a crystal, but I can't be sure.

 

[mirkofc]

I'll be sending you a better photo tomorow. Thanks a lot.

 

[mirkofc]

Hi, I uploaded better photos from the PCB. Have a good day and a better weekend.
https://photos.app.goo.gl/VyWhTVfDXZpoZQit6
Thanks

 

[fzabkar]

What are the markings on these two chips?

http://www.users.on.net/~fzabkar/HDD/ST3000NM0005_ROM.jpg