Seagate ST12400N - Defect and Error Management; 9.1 Drive Internal Defects;Errors; 9.2 SCSI Systems Error Considerations

Product Manual - Hawk 2 Family SCSI-2 (Volume 1), Rev. E 25
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* Bottom side of PCB.
** J1 is a single 80 pin connector on "NC" models. Shown is a 50 pin
SCSI I/O connector and the 4 pin DC power connector.
Figure 7.4.1-1. Locations of components listed in Table 7.4.1-1
SEAGATE
HDA
**
J1
U7
U11
U8
U17
U3
U4
U5
U2
U2Ø
U1Ø
U16
U15
U1
U18
U19
Q4
Q13
Single Ended I/O PCB
**
*
Q1
Q2
Differential I/O PCB
J1
U7
U11
U8
U17
U3
U4
U5
U2
U2Ø
U1Ø
U16
U15
U1
U18
U19
U24
**
*
Q4
Q13
Q1
Q2