Lenovo 2290XF2, A2109 manual Power system checkout, Checking the AC adapter

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General checkout

Power system checkout

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

•• “Checking the AC adapter ” on page 21

•• “Checking the battery pack ” on page 22

Checking the AC adapter

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

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

To check the AC adapter, follow the steps below:

1.Unplug the AC adapter cable from the tablet.

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

Pin

Voltage (V DC)

 

 

1

+5

 

 

2

0

 

 

2

1

Note: Output voltage for the AC adapter pin No. 2 may differ 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:

•• Replace the system board.

•• If the problem continues, go to “Lenovo IdeaTab A2109A-F” on page 24. Note: Noise from the AC adapter does not always indicate a defect.

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Contents IdeaTab A2109A-F Page Contents Lenovo IdeaTab A2109A-F About this manualSafety information General safety Electrical safety Lenovo IdeaTab A2109A-F Hardware Maintenance Manual Safety inspection guide Grounding requirements Safety notice Safety notices multilingual translationsLenovo IdeaTab A2109A-F Hardware Maintenance Manual Safety information Lenovo IdeaTab A2109A-F Hardware Maintenance Manual Safety information Lenovo IdeaTab A2109A-F Hardware Maintenance Manual Safety information Laser compliance statement Safety information Strategy for replacing FRUs Important service informationImportant notice for replacing a system board Important service informationImportant information about replacing RoHS compliant FRUs Important notes General checkoutWhat to do first Following are not covered under warrantyChecking the AC adapter Power system checkoutChecking the battery pack Power management Related service informationSleep standby mode Locking the screenLenovo IdeaTab A2109A-F SpecificationsScrew notices FRU replacement noticesRemoving and replacing an FRU Removal steps of rear cover Rear coverRemoval steps of base cover Remove the rear cover in the direction shown by arrow For access, remove this FRU Rear cover on Battery packRemove the battery pack in the direction shown by arrow Important notices for handling the system board System boardLenovo IdeaTab A2109A-F Lenovo IdeaTab A2109A-F Hardware Maintenance Manual Removal steps of IO board IO boardRemove the IO board in the direction shown by arrow Removal step of digital board Digital boardLenovo IdeaTab A2109A-F Hardware Maintenance Manual Removal steps of speakers SpeakersRemoval steps of internal antenna Internal antennaRemoval steps of volume button bracket Volume button bracketRemoval step of integrated camera Integrated cameraRemove the front camera in the direction shown by arrow Removal steps of touch panel and LCD panel Touch panel and LCD panelRemoval steps of LCD panel Front and Bottom view LocationsTop, Right-side and Left-side view Parts list Overall Parts list-Overall Miscellaneous parts Parts list-Miscellaneous partsLenovo IdeaTab A2109A-F Hardware Maintenance Manual Trademarks

A2109, 2290XF2 specifications

The Lenovo 2290XF2, also known as the A2109, stands out in the realm of tablets with its impressive array of features and technologies designed to enhance user experience. This device has garnered attention among professionals and entertainment enthusiasts alike, thanks to its powerful performance and versatile functionality.

One of the main features of the A2109 is its sleek design, which combines style with portability. The tablet is equipped with a vibrant 9-inch display that boasts a resolution of 1280x800 pixels, delivering stunning visuals whether users are watching videos or playing games. The IPS technology employed in the screen ensures wide viewing angles and accurate color reproduction, making it an ideal choice for media consumption.

Under the hood, the Lenovo A2109 is powered by a quad-core processor, providing seamless multitasking and efficient performance. With 1GB of RAM and various storage options, including 8GB or 16GB of internal memory, users can store their favorite apps, photos, and videos with ease. The device also comes with a microSD card slot, allowing for expandable storage up to 32GB, which is a significant advantage for those who require more space.

In terms of connectivity, the A2109 features Wi-Fi and Bluetooth capabilities, ensuring users can stay connected to the internet and their devices anytime, anywhere. The inclusion of HDMI output further enhances its utility, enabling users to connect the tablet to larger displays, such as televisions or projectors, for a shared viewing experience.

The battery life of the A2109 is another noteworthy attribute. With its robust battery, users can expect up to 10 hours of usage on a single charge, making it suitable for day-long activities, whether working on the go or enjoying leisure time.

Moreover, the tablet runs on the Android operating system, which offers access to a vast ecosystem of applications via the Google Play Store, spanning various categories from productivity tools to games and entertainment.

The Lenovo A2109 also comes equipped with front and rear cameras, allowing users to take photos, engage in video calls, or capture moments spontaneously. Its durable build ensures longevity, positioning it as a reliable companion for both personal and professional use.

Overall, the Lenovo 2290XF2, A2109, is a well-rounded tablet that combines solid performance, a vibrant display, and enhanced connectivity options, making it an attractive choice for those seeking a capable portable device. Whether for work or play, it stands out as a versatile tool for modern users.
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