Compaq Presario 305 Maintenance And Service Manual page 81

Before You Begin
Removal Sequence
Product Description
Specifications (continued)
CD drive
Physical and environmental
System I/O Address
Diskette drive
Formatted Capacity per Drive (GB)
Logical Configuration
Cylinders
Heads
Sectors per track
Bytes per sector
Typical Seek Times, ms
(including settling)
Single track
Average
Full stroke
Rotational speed
Transfer Rate
Operating Temperature
Applicable
Disc
Center Hole
Diameter
Disc
Diameter
Disc
Thickness
Track Pitch
Capacity
Laser
Access Time
Audio Output
Level
Cache Buffer 128 KB
Data
Transfer
Rate
(Sustained)
Dimensions
Height
Length
Weight
Cells
Energy
Voltage
Amp-hour capacity
Watt-hour capacity
Environmental Requirements
Operating Temperature
Non-operating Temperature
System Interrupts
System Memory Catalog
Hard drive
Battery pack
Diskette Size
Light
Height
Bytes per Sector
Sectors per Track
High Density
Low Density
Tracks per Side
High Density
Low Density
Read/Write Heads
Access Times
Track-to-Track (high/low)
Average (high/low)
Settling Time
Latency Average
Energy
Voltage
Amp-hour capacity
Watt-hour capacity
Temperature
Operating
Non-operating
CD-ROM (Mode 1, 2, and 3)
CD-XA ready (Mode 2, Form 1 and Form 2)
CD-I ready (Mode 2, Form 1 and Form 2)
CD-R (ready only)
CD Plus
Photo CD (single/multisession)
CD Extra
Video CD
CD-WO (fixed packets only)
CD-Bridge
.59 in/15 mm
12 cm, 8 cm
1.2 mm
1.6 um
Mode 1, 12
Mode 2, 12 cm
8 cm
Beam Divergence
Output Power
Type
Wave Length
Random
Full Stroke
Line out
Headphone
24x
Variable
Normal PIO Mode 4 (single
burst)
Startup time
Stop time
Lithium Ion (Li Ion) Battery Pack
Presario 305 Model
Specifications
Troubleshooting
Pin Assignments
Diskette Drive
41 to 95°F/5 to 35 °C
-22 to 140°F/-30 to 60
Hard Drive
DVD Drive
550 MB
640 MB
180 MB
53.5 ±
0.24
Semiconducter Laser GaA1As
780 nm ± 25 nm
< 150 ms
< 300 ms
0.7 V rms
none
150 KB/sec
1500 to 3600 KB/sec
16.6 MB/sec
< 8.3 seconds
< 4.0 seconds
U.S.
0.9 in
10.47 in
0.48 lb
4 Li-Ion
14.4 V
2.8 Ah
27 Wh
41° to 95° F
-22° to 140° F
Parts Catalog
Battery Operations
Index
System DMA
Display
3.5 inch
On drive
0.55 in (1.40 cm)
512
18 (1.44 MB)/15
(1.2MB)
9
80 (1.44 MB)/80
(1.2MB)
80
2
3 ms/6 ms
94 ms/174 ms
15 ms
100 ms
14.4 V
2.8 Ah
27 Wh
°C
4.3 GB
2
4.3 GB
8955
4
N/A
512
N/A
4 ms
13 ms (read)
23 ms
4,009 rpm
33.3 MB/s
41 to 131°F/5 to 55 °C
">1.5 degrees
± 0.1 mw
Metric
2.3 cm
26.6 cm
0.21 kg
5° to 35° C
-30° to 60° C