Checkout guide

Checking the ac adapter

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

vIf the power problem occurs only when the ThinkPad Essential Port Replicator is used, replace the port replicator.

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

1

(20V)

Pin

Voltage (V dc)

1+20

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:

vReplace the system board.

vIf the problem persists, go to “Product overview” on page 34.

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.

Perform operational charging. If the battery status indicator or icon does not turn on, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator or icon still does not turn on, replace the battery pack.

If the charge indicator still does not turn on, replace the system board. Then reinstall the battery pack. If it is still not charged, go to the next section.

Checking the battery pack

Battery charging does not start until the Power Meter shows that less than 95% of the total power remains; under this condition the battery pack can charge to 100% of its capacity. This protects the battery pack from being overcharged or from having a shortened life.

To check your battery, move your cursor to the Power Meter icon in the icon tray of the Windows taskbar and wait for a moment (but do not click), and the percentage of battery power remaining is displayed. To get detailed information about the battery, double-click the Power Meter icon.

General descriptions

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Lenovo R60E, R61I Checking the ac adapter, Checking operational charging, Checking the battery pack, Pin Voltage V dc

R60E, R61I, R61 specifications

The Lenovo R61, R61I, and R60E are part of the ThinkPad series, known for their reliability and productivity features tailored for business users. Launched in the mid-2000s, these laptops integrated robust design with high performance, making them popular choices for professionals.

The Lenovo R61, an evolution of the R60 series, features a 14.1-inch widescreen display with a resolution of 1440x900 pixels. It offers enhanced visual clarity suitable for multitasking and productivity applications. The laptop is powered by Intel's Core 2 Duo processor, which provides impressive performance with low power consumption. Coupled with up to 4GB of RAM, the R61 can handle demanding applications, making it ideal for users needing reliability in their workflows.

The R61I variant caters specifically to users who seek a balance between performance and cost. While it retains many core features of the R61, such as the Intel processors and the same display options, it comes with slightly reduced specifications. This makes the R61I a budget-friendly choice without sacrificing essential functionalities, providing a solid option for small businesses or students.

The R60E serves as a budget-friendly alternative in the series, featuring a 15.4-inch display that provides adequate screen real estate for everyday tasks. It supports a lower-end Intel processor, making it suitable for general use, such as word processing, web browsing, and emails. The design remains sturdy, featuring the hallmark ThinkPad durability, ensuring these laptops can withstand daily wear and tear.

All three models incorporate Lenovo’s unique keyboard design, known for tactile feedback and spill resistance, enhancing the user experience during lengthy typing sessions. Furthermore, these laptops come equipped with a variety of ports, including USB, VGA, and ethernet, facilitating connectivity with multiple devices.

Security features are another hallmark of the R61, R61I, and R60E series. They include a fingerprint reader and a Trusted Platform Module (TPM), providing users with secure access options and data protection. The laptops support various hard drive configurations, including options for SSDs, enhancing speed and reliability.

In summary, the Lenovo R61, R61I, and R60E are commendable options within the ThinkPad lineup, blending performance, durability, and versatility. Whether for demanding professionals or budget-conscious students, these laptops remain relevant in providing efficient computing solutions.