1-6
1.3
3.5-inch Floppy Disk Drive
The T1950 Series 3.5-inch Floppy Disk Drive (FDD) is a thin, high-performance reliable drive
that supports 720-KB (formatted) 2DD and 1.44-MB (formatted) 2HD 3.5-inch floppy disks.
The T1950 Series FDD is shown in Figure 1-4, and specifications are listed in Table 1-1.
Figure 1-4 3.5-inch FDD
Table 1-1 3.5-inch FDD Specifications
Item
2-MB mode
1-MB mode
Storage capacity (KB)
Unformatted
2,000
1,000
Formatted
1,311
737
Number of heads
2
2
Number of cylinders
80
80
Access time (ms)
Track to track
3
3
Average
181
181
Head settling time
15
15
Recording track density (tpi)
135
135
Data transfer rate (Kbps)
500
250
Rotation speed (rpm)
300
300
Recording method
Modified Frequency Modulation (MFM)
Summary of Contents for T1950
Page 21: ...2 3 Figure 2 1 Troubleshooting Flowchart 1 2 ...
Page 156: ...B 2 Figure B 2 FATSU Upper System Board back G ...
Page 158: ...B 4 B 2 FATSL Lower System Board Figure B 3 FATSL Lower System Board front ...
Page 159: ...B 5 Figure B 4 FATSL Lower System Board back ...
Page 171: ...D 1 Appendix D USA Display Codes Table D 1 USA Display Codes ...
