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Lenovo 3000 N500 Power system checkout, Checking the AC adapter, Checking operational charging

Models: 3000 N500

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Power system checkout

To verify a symptom, do the following:

1.Turn off the computer.

2.Remove the battery pack.

3.Connect the ac adapter.

4.Check that power is supplied when you turn on the computer.

5.Turn off the computer.

6.Disconnect the ac adapter and install the charged battery pack.

7.Check that the battery pack supplies power when you turn on the computer.

If you suspect a power problem, see the appropriate one of the following power supply checkouts:

v“Checking the AC adapter”

v“Checking operational charging”

v“Checking the battery pack” on page 30

Checking the AC adapter

You are here because the computer fails only when the AC adapter is used.

vIf the power-on indicator does not turn on, check the power cord of the AC adapter for correct continuity and installation.

vIf the computer does not charge during operation, go to “Checking operational charging”

To check the AC adapter, do the following:

1.Unplug the AC adapter cable from the computer.

2.Measure the output voltage at the plug of the AC adapter cable. See the following figure:

3

2

(20V)1

Pin

Voltage (V dc)

1+19

20

3Ground

Note: Output voltage of pin no.2 of the AC adapter may different from the one you are servicing.

3.If the voltage is not correct, replace the AC adapter.

4.If the voltage is acceptable, do the following: v Replace the system board.

vIf the problem persists, go to “Lenovo 3000 N500” on page 43.

Note: Noise from the AC adapter does not always indicate a defect.

Checking operational charging

To check whether the battery charges properly during operation, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer.

General checkout 29

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Lenovo 3000 N500 manual Power system checkout, Checking the AC adapter, Checking operational charging
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3000 N500 specifications

The Lenovo 3000 N500 is a versatile laptop that caters to the needs of both home and business users. Launched in the mid-2000s, it encompasses a blend of performance, design, and functionality that makes it a reliable choice for a range of applications.

One of the main features of the Lenovo 3000 N500 is its robust processing power. It typically comes equipped with Intel Core 2 Duo processors, offering dual-core performance for efficient multitasking. This capability is particularly beneficial for users who run multiple applications simultaneously or engage in resource-intensive tasks such as video editing, gaming, or graphic design.

In terms of memory, the N500 usually supports up to 4GB of DDR2 RAM, which enables smooth performance and responsiveness. Users can upgrade memory to enhance performance further, ensuring the device remains capable of handling contemporary applications.

Storage options for the Lenovo 3000 N500 include hard drives ranging from 120GB to 320GB, providing ample space for files, documents, and media. The inclusion of a DVD writer adds value, allowing users to easily read and write CDs and DVDs, essential for data backups or media sharing.

The display of the N500 features a 15.4-inch widescreen, offering a resolution of 1280 x 800 pixels. The vibrant display is well-suited for watching videos, browsing the web, or working on presentations. The integrated Intel Graphics Media Accelerator enhances visual performance, making it a suitable option for casual gaming and multimedia consumption.

Design-wise, the Lenovo 3000 N500 boasts a sturdy build with a sleek and professional appearance. Weighing approximately 5.5 pounds, it remains portable enough for on-the-go use while still providing a comfortable typing experience, thanks to its full-sized keyboard.

The laptop includes several connectivity options, such as USB ports, an Ethernet port, and a built-in wireless card, enabling easy connections to networks and peripherals. Additionally, the inclusion of a multi-card reader enhances its functionality, allowing users to quickly transfer data from various memory cards.

Lenovo’s commitment to user experience is evident in the battery life of the N500. With an average battery lifespan of around 3-4 hours, it allows for extended use without the constant need for recharge, a vital aspect for users who travel frequently.

In summary, the Lenovo 3000 N500 combines solid performance, practical features, and reliable connectivity, making it an ideal choice for users seeking a functional and durable laptop for both professional and personal use.