Compaq 190 LS-120 Drives,

MAINTENANCE & SERVICE GUIDE
PROSIGNIA NOTEBOOK 190
INDEX PAGE PRODUCT DESCRIPTION LEGAL NOTICE HOW TO USE THIS GUIDE
REMOVAL & REPLACEMENT ILLUSTRATED PARTS CATALOG TROUBLESHOOTING SPECIFICATIONS
Specifications
LS-120 Drives
>Physical &
Environmental
>Display
>Hard Drives
>CD/DVD
Drives
>LS-120 Drive
>Diskette
Drive
>Battery Pack
>Modem
>System
Memory
>System
Interrupts
>System DMA
>System I/O
>Pin
Assignments
1.68 MB
DMF 1.44 MB 1.2 MB 1.2 MB 720 KB
Formatted
capacity
(bytes)
1,720,320 1,474,560 1,228,800 1,261,568 737,280
Sector size
(bytes) 512 512 1,024 512 512
Sectors 3,360 2,880 1,232 2,400 1,440
Magnetic
tracks
surface
80 80 77 80 80
Optical servo
tracks/surface N/A N/A N/A N/A N/A
Sectors/track 21 18 8 15 9
Sector
interleave 2:1 1:1 1:1 1:1 1:1
Spare sectors 0 0 0 0 0
Zones (each
side) 1 1 1 1 1
Average
random seek 70 ms 70 ms 70 ms 70 ms 70 ms
Track-to-track
seek 25 ms 25 ms 25 ms 25 ms 25 ms
Max single
seek 170 ms 170 ms 170 ms 170 ms 170 ms
Average
latency 41.67 ms 41.67 ms 41.67 ms 41.67 ms 41.67 ms
Motor RPM 720±0.5% 720±0.5% 720±0.5% 720±0.5% 720±0.5%
Motor start
time 800 ms 800 ms 800 ms 800 ms 800 ms
Track density 135 TPI 135 TPI 135 TPI 135 TPI 135 TPI
Track width 125 µm 125 µm 125 µm 125 µm 125 µm
Encoding
method MFM MFM MFM MFM MFM
Max flux
density 17,334
FCI 17,334 FCI 17,334 FCI 17,334 FCI 17,334 FCI