1.44 Megabyte Diskette Drive Specifications; Power Supply - Compaq Portable II Maintenance And Service Manual

Tracks per Inch
Number of Tracks
Data Transfer Rate
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Chapter 1.8 1.44 Megabyte Diskette Drive Specifications
Table 1-8.

1.44 Megabyte Diskette Drive Specifications

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Dimensions:
Height
Depth
Width
Weight
Media:
Tracks per Inch
Number of Tracks
Data Transfer Rate
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Chapter 1.9 Power Supply
Table 1-9. Power Supply Specifications
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Input Requirements:
Line Voltage
Line Frequency
Cooling
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Volts Direct Current Output
Nominal Current
Voltage Amperes
(VDC) Minimum
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+5.0 3.0
-5.0 0.0
+12.2 1.0
-12.0 0.0
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* These values are maximum values based on nominal operating conditions for
temperature, line voltage, frequency and altitude.
l2 VDC must be maintained for proper power supply operation.
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96 (1.2 megabyte format)
48 (360 Kbyte format)
80 (1.2 megabyte format)
40 (360 Kbyte format)
500 Kb/s (1.2 megabyte format)
300 Kb/s (360 Kbyte format)
0.90 in. (2.3 cm)
6.47 in. (16.42 cm)
5.95 in. (11.1 cm)
1.98 lb (0.9 kg)
135
80
500 Kb/s (high density)
250 Kb/s (low density)
102 to 132 VAC. single phase
180 to 264 VAC. single phase
3.0A fuse, 125 VAC for 120 VAC operations
2.5A fuse, 150 VAC for 220/240 VAC operation
47 - 62 Hz
Forced air provided by internal 12 VDC fan
Nominal
Continuous
Current
(Amperes) Maximum *
13.9
0.5
4.0
0.5
Maximum
Peak Regulation
Current Tolerance
(Amperes) Percentage
13.9 ñ2
0.5 ñ5
7.0 ñ2
0.5 ñ5
Also, a minimum load on