Hard Disk Drive Circuit Board / Logic Board 100277705 for 40-160GB 7200rpm 2MB IDE 3.5" Seagate Barracuda 7200.7 ST340014A ST380011A ST3120022A ST3160021A

PCB Model100277705 REV A
PCB P/N (PCB sticker)

100277704

Compatible HDD models

ST340014A
ST380011A
ST3120022A
ST3160021A

HDD P/N

9W2005 9W2005-xxx 9W2005-306
9W2003 9W2003-xxx 9W2003-311
9W2002 9W2002-xxx 9W2002-030
9W2001 9W2001-xxx 9W2001-030

Main Controller IC

100252820

HDD Motor Combo IC

SMOOTH

100244097

 

This item has been thoroughly tested, verified to be working, and guaranteed to be OK before shipment.
 
The buyer is fully responsible for verifying compatibility issues for this item. 
Please note that this item can only fix PCB problems. Some HDDs have additional internal damage that is not easy to detect.

The ROM IC on the PCB is programmed with the unique parameters/settings of its original HDD. 
Please swap the ROM IC (marked with a red circle in the photo), and the donor PCB will be compatible with your hard drive.