Lenovo X200 manual Power system checkout, Checking the ac adapter, Pin Voltage V dc

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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” on page 30

v“Checking the battery pack” on page 30

v“Checking the backup battery” on page 31

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 X200 UltraBase is used, replace the UltraBase.

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” on page 30

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: v Replace the system board.

vIf the problem persists, go to “ThinkPad X200 Tablet” on page 47.

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

General checkout 29

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Contents ThinkPad X200 Tablet Hardware Maintenance Manual Page ThinkPad X200 Tablet Hardware Maintenance Manual Page Contents 171 ThinkPad X200 Tablet About this manualVi ThinkPad X200 Tablet Hardware Maintenance Manual Safety information General safety Electrical safety ThinkPad X200 Tablet Hardware Maintenance Manual Safety inspection guide Grounding requirements Safety notice Safety notices multilingual translationsSafety notice Safety notice Safety notice Safety notice Safety notice Safety notice Laser compliance statement Safety information ThinkPad X200 Tablet Hardware Maintenance Manual Strategy for replacing FRUs Before replacing partsSelect Downloads and drivers Strategy for replacing a hard disk drive How to use error messageImportant notice for replacing a system board FRU identification for CTO, CMV, and GAV products Dynamic Configure To Order CTOUsing eSupport Important information about replacing RoHS compliant FRUs ThinkPad X200 Tablet Hardware Maintenance Manual General checkout What to do first Following are not covered under warrantyCheckout guide Testing the computer Diagnostics using PC-Doctor for DOSDiagnostics Interactive Tests PC-Doctor for Windows PC-Doctor for Rescue and RecoveryHardware Info UtilityChecking the ac adapter Power system checkoutPin Voltage V dc Checking operational charging Checking the battery packTerminal Voltage V dc Wire Voltage V dc Checking the backup batteryThinkPad X200 Tablet Hardware Maintenance Manual Service Web site Related service informationPower-on password PasswordsHard-disk password Supervisor passwordHow to remove the hard-disk password How to remove the power-on passwordSelect Power-On Password Select Master HDP Screen blank mode Power managementStandby mode Hibernation mode Numeric error codes Symptom-to-FRU index0191 Run Bios Setup Utility, and then save 0190 Charge the battery pack0199 Run Bios Setup Utility, and then save Installed or press Esc to ignore0251 Charge the backup battery for more Than 8 hours by connecting the ac0252 Reset the password by running Bios Setup 0260 Charge the backup battery for more1820 Remove all but the reader that you set up 1805 Remove the Wireless USB card that youFor the authentication 1830 Install Dimm in Slot-0, but not in Slot-1Error messages No-beep symptoms Beep symptomsLCD-related symptoms Undetermined problems Intermittent problemsThinkPad X200 Tablet Feature Description SpecificationsIII Indicator Meaning Status indicatorsBlinking green Blinking orange slow OrangeBlinking orange rapid FRU tests Diagnostics --PM Memory Diagnostics --Other Devices--Optical DriveRun Diagnostics --ThinkPad Devices --Fan Interactive Tests --Optical Drive TestKey combination Description Fn key combinationsKey combination Description Screw notices FRU replacement noticesPlastic to plastic Logic card to plasticSelect 2. Read S/N data from Eeprom Retaining serial numbersMTM on rear label Product ID on rear labelThinkPad X200 Tablet Hardware Maintenance Manual Reading or writing the ECA information Removing and replacing a FRU Removing the SIM card Before servicing ThinkPad X200 TabletDigitizer pen Battery pack Step Screw quantity Color Torque ThinkPad X200 Tablet SSD and storage converter HDD and HDD rubber railsThinkPad X200 Tablet Dimm Removal steps of dimm Hinge caps Close the LCD unit, and then remove the hinge cap rear Step Icon Screw quantity Color Torque KeyboardRemoval steps of keyboard When installing Extension cable card Palm rest Removal steps of palm rest Backup battery Removal steps of backup battery Full size PCI Express Mini Card PCI Express Mini Card for wireless LANWhen installing Harf size PCI Express Mini Card When installing PCI Express Mini Card for wireless WAN Removal steps of PCI Express Mini Card for wireless WAN Intel Turbo Memory Minicard or wireless USB adapter ThinkPad X200 Tablet Bluetooth daughter card BDC-2.1 Removal steps of Bluetooth daughter card Keyboard bezel Step Screw quantity Color Torque Removal steps of keyboard bezel 1150 I/O card assembly Removal steps of I/O card assembly USB sub card Removal steps of USB sub card LCD assembly Step Screw quantity Color Torque Removal steps of LCD assembly Removal steps of LCD assembly Remove the top shielding assembly at first M2 ⋅ 3.5 mm, wafer-head, nylon-coated Black 181 Nm Kgfcm Step Remove the digitizer pen case assembly Fit into the frame M2 ⋅ 3.5 mm, flat-head, nylon-coated Silver 181 Nm Kgfcm When installing Important notices for handling the system board System board and ExpressCard slot assemblyTop Bottom Step Screw quantity Color Torque Base cover and speaker assembly Applying labels to the base cover M2.5 ⋅ 8 mm, wafer-head Black 392 Nm Nylon-coated Kgfcm LCD front bezelThinkPad X200 Tablet ThinkPad X200 Tablet Hardware Maintenance Manual ThinkPad X200 Tablet Micro-Processor card Step Screw quantity Color Torque Inverter card Hinges Removal steps of hinge LCD panel and LCD cable ThinkPad X200 Tablet Hardware Maintenance Manual ThinkPad X200 Tablet Is only for models with the integrated camera. For models ThinkPad X200 Tablet M2 ⋅ 3.5 mm, wafer-head, nylon-coated Silver 181 Nm Kgfcm Is only for models with the integrated camera. For models ThinkPad X200 Tablet Hardware Maintenance Manual Integrated camera LCD rear cover and wireless antenna cables Removal steps of LCD rear cover and wireless antenna cables Remove the center latch from the LCD rear cover Removal steps of LCD rear cover and wireless antenna cables Locations Front view Rear view Rear view tablet modeBottom view Rear view ThinkPad X200 UltraBase Bottom view ThinkPad X200 UltraBase Self-service CRUs Parts listOptional-service CRUs CRU OverallCRU FRU no RoHSFRU FRU FRU FRU FRU FRU FRU FRU FRU FRU FRU FRU LCD FRUs 12.1-in. Wxga TFT FRU FRU FRU FRU FRU Language RoHS Miscellaneous parts LCM Bluetooth mylarAC adapters Region RoHS Power cordsWindows XP Tablet DVDs Recovery discsWindows Vista Home Premium 32 bit DVDs Windows Vista Business 32 bit DVDs Windows Vista Business 64 bit DVDs Windows Vista Ultimate 32 bit DVDs Tool Common service tools171 Trademarks Page Part Number 45N368301
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X200 specifications

The Lenovo X200, part of Lenovo's ThinkPad series, was introduced as a lightweight and portable laptop designed for professionals and business users. This model offers a blend of performance, durability, and advanced features, making it a popular choice for those who prioritize mobility and reliability in their work.

One of the standout characteristics of the X200 is its compact design. Weighing in at around 3.5 pounds and featuring a 12.1-inch display, this laptop is exceptionally portable. Its robust chassis is made from high-quality materials, intended to withstand everyday wear and tear while meeting military specifications for durability. The spill-resistant keyboard is another valuable feature, ensuring that accidental spills do not compromise the device’s functionality.

The X200 is powered by Intel’s Core 2 Duo processor, which provides ample performance for multitasking and handling demanding applications. The laptop supports up to 8GB of RAM, enhancing its ability to run multiple applications concurrently without lag. The inclusion of solid-state drives (SSDs) offers faster data access speeds and contributes to improved overall system responsiveness, further enhancing the user experience.

Display quality is another strong point for the X200. The laptop features an LED-backlit display that provides excellent brightness and color accuracy, making it suitable for presentations and media consumption. The screen resolution, typically at 1280 x 800 pixels, ensures that images and text are crisp and clear, catering to both work and entertainment needs.

Connectivity options on the X200 are extensive, featuring multiple USB ports, a VGA port for external displays, and an ExpressCard slot for additional functionality. For those who require internet connectivity, the laptop supports both Ethernet and Wi-Fi, with options for integrated 3G capabilities, allowing users to stay connected on the go.

Lenovo’s ThinkVantage technologies enhance the X200 experience, offering features such as system updates, security management, and backup solutions. The laptop also boasts a long battery life, making it ideal for users who need to work away from power outlets for extended periods.

In conclusion, the Lenovo X200 is a well-rounded laptop that combines portability, performance, and a suite of features tailored for business users. Its durability, coupled with Lenovo's commitment to quality engineering, makes it a reliable choice for professionals looking for an efficient and capable device.
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