Compaq 7470 - Presario - 64 MB RAM Maintenance And Service Manual page 81

MSG index Product Description
Home Removal & Replacement
SPECIFICATIONS
System
Power supply
CD Drives (including CD-RW)
Diskette drive
Hard drives
DVD drive
Dimensions
CD drives
Mouse
Fax/modem
Weight
Zip drive
Applicable Disc
Block Size
CD-ROM Mode 1
CD-ROM Mode 2
CD-DA
CD-XA
Diameter
Thickness
Track Pitch
Laser
Access Time
Random
Full Stroke
Audio Output Level
Cache Buffer
Data Transfer Rate
Bus Rate
Startup Time (Single)
Startup Time (Multisession)
Stop Time
Dimensions
Weight
Applicable Disc
Read Only Block Size
CD-ROM Mode 1
CD-ROM Mode 2 Form 1
CD-ROM Mode 2 Form 2
CD-DA
Writeable Block Size
CD-ROM Mode 1
CD-ROM Mode 2 Form 1
CD-ROM Mode 2 Form 2
CD-DA
Diameter
Thickness
Track Pitch
Laser
Access Time
Random
Full Stroke
Audio Output Level
Cache Buffer
Data Transfer Rate
Bus Rate
Startup Time (Single)
Startup Time (Multisession)
Stop Time
Maintenance and Service Guide
Compaq Presario 7400 Series Computers
Jumper & Switch Information
Width
Height
Depth
CD-ROM
CD-DA
CD-R/W
CD-XA
Photo CD
Divergence Angle
Output Power
Type
Wave Length
Line Out
Sustained
Burst
Width
Height
Depth
CD-ROM
CD-DA
CD-ROM XA
Photo CD
CD-I
CD EXTRA
CD-R/W
Video CD
CD-TEXT
Divergence Angle
Output Power
Type
Wave Length
Line Out
Sustained
Burst
Troubleshooting
32× CD Drive
U. S.
5.75 in
1.67 in
8.23 in
2.65 lb
Modes 1 and 2
Audio
Mode 2, Form 1 and 2
Single and Multiple Session
2048 bytes
2340, 2336 bytes
2352 bytes
2328 bytes
12 cm, 8 cm (drive must support 8 cm adapters)
1.2 mm
1.6 µm
53.5 degrees +/- 1.5 degrees
0.14 mW (@ objective lens)
Semiconductor laser GaAIAs
780 nm +/- 25 nm
< 100 ms (typical)
< 150 ms (typical)
0.7 V (RMS)
128 KB (minimum)
150 kB/s (IX, using audio disc)
2100 to 4800 kB/s (14X to 32X variable, w/650 MB
disc)
4.0 MB/s minimum
< 7 sec (typical)
< 30 sec (typical)
< 4 sec
CD-RW
U. S.
5.75 in
1.67 in
8.23 in
2.65 lb
Modes 1 and 2
Audio
Mode 2, Form 1 and 2
Single and Multi Session
Mode 2, Form 1 and 2
2048 and 2352 bytes
2048, 2328, 2336, 2340, and 2352 bytes
2328, 2336, 2340, and 2352 bytes
2352 and 2368 bytes
2048 bytes
2048 and 2352 bytes
2352 bytes
2352 and 2368 bytes
12 cm, 8 cm (drive must support 8 cm adapters)
1.2 mm
1.6 µm
53.5 degrees +/- 1.5 degrees
0.14 mW (@ objective lens)
Semiconductor laser GaAIAs
780 nm +/- 25 nm
150 ms (typical)
350 ms (typical)
0.7 V (RMS)
1 Mbyte (minimum)
150 kB/s (1X, read/write), 300 KB/s (2X,
read/write),
600 KB/s (4X, read/write), 1200 KB/s (8X, read),
Variable 1500 to 3600 KB/s (10X to 24X, read)
4.0 MB/s minimum
< 7 sec (typical)
< 30 sec (typical)
< 4 sec
Illustrated Parts Catalog
Specifications
Metric
150.1 mm (maximum)
42.9 mm (maximum)
208.0 mm (maximum)
1200 grams
Metric
150.1 mm (maximum)
42.9 mm (maximum)
208.0 mm (maximum)
1200 grams