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

1.44 MB

1.2 MB

1.2 MB

720 KB

 

DMF

 

 

 

 

Formatted

1,720,320 1,474,560 1,228,800 1,261,568

737,280

capacity

 

 

 

 

 

(bytes)

 

 

 

 

 

Sector size

512

512

1,024

512

512

(bytes)

 

 

 

 

 

Sectors

3,360

2,880

1,232

2,400

1,440

Magnetic

80

80

77

80

80

tracks

 

 

 

 

 

surface

 

 

 

 

 

Optical servo

N/A

N/A

N/A

N/A

N/A

tracks/surface

 

 

 

 

 

Sectors/track

21

18

8

15

9

 

 

 

 

 

Sector

2:1

1:1

1:1

1:1

1:1

interleave

 

 

 

 

 

Spare sectors

0

0

0

0

0

Zones (each

1

1

1

1

1

side)

 

 

 

 

 

Average

70 ms

70 ms

70 ms

70 ms

70 ms

random seek

 

 

 

 

 

Track-to-track

25 ms

25 ms

25 ms

25 ms

25 ms

seek

 

 

 

 

 

Max single

170 ms

170 ms

170 ms

170 ms

170 ms

seek

 

 

 

 

 

Average

41.67 ms

41.67 ms

41.67 ms

41.67 ms

41.67 ms

latency

 

 

 

 

 

Motor RPM

720±0.5% 720±0.5% 720±0.5% 720±0.5% 720±0.5%

Motor start

800 ms

800 ms

800 ms

800 ms

800 ms

time

 

 

 

 

 

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

MFM

MFM

MFM

MFM

MFM

method

 

 

 

 

 

Max flux

17,334

17,334

17,334

17,334

17,334

density

FCI

FCI

FCI

FCI

FCI

Page 22
Image 22
Compaq 190 manual LS-120 Drives

190 specifications

The Compaq 190, a significant player in the evolution of portable computing, was unveiled in the early 1990s at a time when the demand for mobility in technology was surging. As a member of Compaq's renowned line of portable PCs, the Compaq 190 was a bridge between desktop power and laptop convenience, offering an impressive array of features and technologies that appealed to both business professionals and technology enthusiasts.

One of the main features of the Compaq 190 was its compact size. Weighing under 10 pounds, it was designed for easy transport, allowing users to work remotely without sacrificing performance. The device was equipped with a 10.4-inch LCD display, providing a balance between portability and screen real estate. This display was notable for its clarity, allowing users to engage with applications effectively, whether in an office setting or on the go.

Under the hood, the Compaq 190 was powered by an Intel CPU, commonly featuring early generations of the Intel 386 processor. This gave the laptop the capability to run various software applications efficiently, making it suitable for word processing, spreadsheets, and basic graphical tasks. Furthermore, the inclusion of a built-in hard drive, typically around 40 MB, provided ample storage for documents and applications of that era.

In terms of connectivity, the Compaq 190 was equipped with standard ports of the time, including serial and parallel ports, allowing users to connect external devices such as printers and modems. The addition of a PCMCIA slot supported expansion, enabling users to enhance functionality with network cards, additional storage, or even modems for internet connectivity.

Battery life was another essential characteristic of the Compaq 190, with options available for extended use. Users could expect several hours of operation away from an electrical outlet, a crucial feature for professionals frequently traveling for work.

Overall, the Compaq 190 represented a pivotal moment in portable computing technology. With its combination of portability, processing power, and essential features, it offered solutions for a generation that valued both functionality and mobility. The legacy of the Compaq 190 continues to influence the design and capabilities of modern laptops, reminding us of the early advancements that paved the way for today’s computing devices.