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Table 2-28

Solving Screen Problems

Problem

Probable Cause

Solution(s)

 

 

 

Characters are dim.

The brightness or contrast

Adjust the control(s)using Fn+F9

 

(if applicable) control is not

(contrast) and Fn+F10 (brightness).

 

set properly.

 

 

 

 

 

Computer screen is in direct light.

Tilt the display or move computer.

 

Display is damaged.

Replace the display.

 

 

 

Screen is blank.

You initiated QuickLock/

Enter the password to exit

 

QuickBlank.

QuickLock/QuickBlank.

 

You may have another screen -

Press any key and/or enter the

 

blanking utility installed.

password.

 

 

 

 

Screen save was initiated after

Press any key or click the mouse.

 

the Power Management timeout

 

 

period of inactivity

 

 

 

 

 

If an STN screen is used, brightness/

Use the hotkeys to adjust the

 

contrast needs adjusting.

brightness/contrast.

 

 

 

 

Screen has overheated

If the computer is in direct sunlight,

 

 

move it an allow it to cool.

 

Suspend was initiated.

Press the suspend button to exit

 

 

Suspend.

Computer screen is blank and the screen on an external monitor displays information.

Display was switched to the external monitor.

Press the Fn+F4 hotkey to display information on the computer screen.

Screen is blank and the

System is in Suspend

Press the Suspend button to exit

power/suspend light is blinking

 

Suspend. Enter the power-on

 

 

password if prompted.

Screen is blank, the power/ suspend light is blinking, and the battery light is blinking

System has entered a low-battery condition

Immediately connect the computer to an external power source or replace the battery pack.

External monitor does not

External monitor was connected

Press the Fn+F4 hotkey to switch to

display information

after the computer was turned on

the external monitor

The external monitor signal cable or power cord is not properly connected.

Verify the cables are properly connected.

Distorted or garbled characters

The ANSI.SYS driver is not in the

Add the ANSI.SYS driver to the

on the screen are mixed with

CONFIG.SYS file or the path is

CONFIG.SYS file. Add the following

text.

incorrect.

line: DEVICE=C:\ANSI.SYS

Garbled characters on internal

You are using 800 × 600 or higher

Restart the computer. If

display or flashing internal

resolution on external display and

simultaneous display is desired, use

display when connected to

have toggled back to internal

640 × 480 resolution.

external monitor.

display, which only supports

 

 

640 × 480 resolution.

 

 

 

 

 

 

Continued

Troubleshooting 2-29

Page 57
Image 57
Compaq 4150T, 4130T, 4140T, 4131T, 4200, 4125T, 4160T SLIMLINE, 4125D, 4115, 4120T, 4110D manual Solving Screen Problems

4130T, 4200, 4115, 4150, 4131T specifications

The Compaq 4160T Slimline, along with its variants – 4125D, 4150, 4120T, and 4150T – represents a series of personal computers that were engineered during the early 1990s. These systems were particularly popular for their compact design and efficient performance, catering to both individual users and businesses seeking reliable computing solutions.

The Compaq 4160T Slimline was designed with portability in mind. It featured a slim form factor that allowed it to fit easily into limited spaces, making it an ideal choice for environments where desk space was at a premium. One of the standout characteristics of the 4160T was its lightweight design, which aided in ease of transport.

The 4125D variant was notable for its robust performance capabilities. It utilized an Intel 486 processor, which provided enhanced processing power for multitasking and running memory-intensive applications. The system came equipped with an array of RAM options and upgradable storage, making it adaptable to various user needs.

The Compaq 4150 and 4150T models built upon the strong foundation of their predecessors, offering improved specifications. These models supported a greater range of peripheral devices, including external drives, printers, and modems, thanks to their extensive connectivity options. The 4150T further featured advanced graphics capabilities, making it suitable for light gaming and multimedia tasks.

The 4120T targeted users who prioritized a balance between performance and cost. With its value-driven design, this model provided essential computing features and was often utilized in educational settings and small offices. Its reliability and ease of use made it a favored choice for individuals who required straightforward functionality.

All models in this series showcased Compaq's commitment to innovation, featuring technologies such as integrated memory management and support for DOS-based applications. Additionally, the systems were equipped with customizable options, allowing users to choose specific configurations that best suited their unique requirements.

In summary, the Compaq 4160T Slimline and its counterparts presented a solution that combined compact design with practical performance. Their legacy continues to remind us of the evolution of personal computing and the foundational role that systems like these played in the development of modern PCs. These models represented a bridge between earlier computing technology and the more sophisticated devices that followed, paving the way for advancements in the industry.