The following auxiliary input devices are supported by this computer:

6Numeric keypad External keyboard

If any of these devices do not work, reconnect the cable connector and repeat the failing operation.

Memory Check

Memory errors might stop system operations, show error messages on the screen, or hang the system.

1.Boot from the diagnostics diskette and start the PQA program (please refer to “Running PQA Diagnostics Program” on page 34.

2.Go to the diagnostic memory in the test items.

3.Press F2 in the test items.

4.Follow the instructions in the message window.

NOTE: Make sure that the DIMM is fully installed into the connector. A loose connection can cause an error.

Power System Check

To verify the symptom of the problem, power on the computer using each of the following power sources:

1.Remove the battery pack.

2.Connect the power adapter and check that power is supplied.

3.Disconnect the power adapter and install the charged battery pack; then check that power is supplied by the battery pack.

If you suspect a power problem, see the appropriate power supply check in the following list:

6“Check the Power Adapter” on page 59 “Check the Battery Pack” on page 60

Check the Power Adapter

Unplug the power adapter cable from the computer and measure the output voltage at the plug of the power adapter cable. See the following figure

Pin 1: +19 to +20.5V

Pin 2: 0V, Ground

1.If the voltage is not correct, replace the power adapter.

2.If the voltage is within the range, do the following: Replace the System board.

6If the problem is not corrected, see “Undetermined Problems” on page 68.

If the voltage is not correct, go to the next step.

NOTE: An audible noise from the power adapter does not always indicate a defect.

3.If the power-on indicator does not light up, check the power cord of the power adapter for correct continuity and installation.

4.If the operational charge does not work, see “Check the Battery Pack” on page 60.

Chapter 4

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Acer 49.49C02.001 manual Memory Check, Power System Check
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49.49C02.001 specifications

The Acer 49.49C02.001 is a remarkable addition to Acer's lineup of high-performance displays, tailored for gamers and professionals alike. This monitor is characterized by its expansive 49-inch curved screen, which creates an immersive viewing experience that draws the user in. The display features a super ultra-wide 32:9 aspect ratio, providing ample screen real estate for multitasking or fully immersing oneself in gaming.

One of the standout features of the Acer 49.49C02.001 is its QHD resolution, with a 3840 x 1080 pixel configuration. This high resolution ensures that images and videos are rendered with stunning clarity and detail, eliminating any blurriness that can often accompany lower resolution displays. The monitor's VA panel technology contributes to its superior contrast ratios, providing vivid colors and deep blacks that enhance the overall viewing experience.

For gamers, the Acer 49.49C02.001 integrates a 144Hz refresh rate, which is essential for achieving smooth gameplay. The high refresh rate minimizes motion blur and provides a seamless visual experience during fast-paced action, making it an ideal choice for first-person shooters and racing games. Additionally, the monitor supports AMD FreeSync technology, which synchronizes the refresh rate of the display with the graphics card, reducing screen tearing and stuttering during gameplay.

In terms of connectivity, the monitor is equipped with multiple input options, including HDMI and DisplayPort, allowing for easy connections to various devices such as gaming consoles and PCs. The inclusion of USB ports also facilitates the connection of peripherals, ensuring that users have everything they need at their fingertips.

The ergonomic design of the Acer 49.49C02.001 is another significant highlight. With height and tilt adjustments, users can customize the monitor's position for optimal comfort during long hours of use. The sleek and modern design complements any setup, whether for gaming, work, or entertainment.

Moreover, the monitor comes with Acer's BlueLightShield and Flickerless technologies, which reduce eye strain during extended use. This combination of features and technologies makes the Acer 49.49C02.001 a versatile and powerful display, suitable for a wide range of applications, from gaming marathons to professional graphic design work. Overall, Acer's commitment to quality and innovation is evident in this striking monitor.
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