WD1004-27x - Winchester Disk Controller Boards
READ THIS FIRST INSTALLATION GUIDE WD1004-27X WD1004A-27X Winchester Disk Controller Boards FEBRUARY 1989 IDENTIFY DRIVE The WD1004-27X and WD1004A-27X boards work with any hard disk drive that has the ST506/412 drive interface and no more than 1024 cylinders and 16 heads.
The Seagate 238 hard disk drive unit is such a drive.
Look in your drive manual to verify that you have an ST506/412 RLL drive or check with your dealer.
Then check the drive manual for the drive parameters, such as those li
WD1004-27x Features
* These boards are described below. WD1004-27X Board Figure 1-1 shows the connector locations (J1, J2, J3, J4, and J5) on the WD100427X board and the location of the jumpers (W17 to W22, R23, and W25 to W28). The WD1004-27X board has a connector at J4, which allows the controller to connect power to
