IBM Z50 manual Terminal Voltage V dc, Ground

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Battery Pack Checkout: If the battery pack or the optional high-capacity battery have a problem, refer to the following:

1.Enter suspend mode by pressing the Power button.

2.Remove the battery pack and check for any mechanical damage. Replace the battery pack if it is damaged.

Note: Damage to the battery pack caused by the customer is not covered by the warranty.

3.Remove the battery pack and measure the voltage between the battery terminals. See the following figure:

1

7

Terminal

1

7

Voltage (V dc)

11.1V

Ground (-)

4.If the voltage is less than 11.1 V dc, the battery pack has been discharged. Recharge the battery pack.

If the voltage is still less than 11.1 V dc after recharging, replace the battery pack.

If the battery pack is extremely hot (over 50°C), replace the battery pack and the mainboard.

If the voltage is correct, but you still suspect a problem with the battery pack, go to “Running the Diagnostics Test” on page 27.

WorkPad z50 Mobile Companion

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Contents March First Edition March About This Manual Contents Vi IBM WorkPad z50, Mobile Companion Before Replacing Parts Important Service InformationFRU Replacement Strategy Safety Notices Multi-lingual Translations Safety NoticeSafety Notice IBM WorkPad z50, Mobile Companion Safety Notice Safety Information General SafetyElectrical Safety Safety Inspection Guide Use caution do not become a victim yourself Switch off powerCheck for worn, frayed, or pinched cables Handling Electrostatic Discharge-Sensitive Devices Grounding RequirementsWorkPad z50 Mobile Companion 2608 Read This First Logic card to Plastic Screw Tightening InformationPlastic to Plastic Torque DriverFollowing is not covered under warranty Page Description FeatureProduct Overview Symptoms Verified Refer To Checkout GuideAudio Checkout Keyboard Checkout Memory CheckoutPower Systems Checkout Modem CheckoutPin Voltage V dc Terminal Voltage V dc 11.1 GroundOptional Dry Cell Battery Checkout If the optional Dry Battery Calibration Application Backup Battery Checkout NonrechargeableROM Card Checkout External Monitor Self-Test TrackPoint CheckoutCradle Checkout IBM WorkPad z50, Mobile Companion Installing the ROM/DRAM Card ROM cardRemoving the ROM/DRAM Card Handling a ScrewdriverBrightness/Contrast Buttons Checkout Removing the Dram ROM CardsSuspend Mode Power Management FeaturesFull Power Mode FRU / Action in Sequence Symptom-to-FRU IndexSymptom / Error LED board Infrared-Related Symptoms Function-Related SymptomsIndicator-Related Symptoms Keyboard- or TrackPoint-Related Symptoms Symptom / Error FRU / Action in SequenceOther Symptoms Peripheral Device Related SymptomsPower-Related Symptoms Intermittent Problems Undetermined ProblemsTool Name Running the DiagnosticsPC Card Slot Test Indicator Related Service ProceduresStatus Indicators and Control Buttons ColorApplication Launching Key Assignments KeySafety Notice 6 Translation on Safety Notice 1 Translation onSafety Notice 2 Translation on Removing and Replacing Defective FRUsPage Length Important NoticeScrew Screw Type Head Unplugging and Plugging Flexible Cables Removal reference Backup Batteries 1020 ROM/DRAM Card Step Size Quantity M2.5 Color Black Torque Kgcm LengthWorkPad z50 Mobile Companion Battery Pack Keyboard Assembly Bottom Cover WorkPad z50 Mobile Companion Mainboard Step Size Quantity M2.0 Color Torque Kgcm LengthLCD Bezel LCD Unit Inverter Card and LCD Panel FPC Assembly Step Size Quantity Color M2.5 Hex Torque Kgcm LengthSpeaker MicrophonePC Card Slot Assembly Audio PortsWorkPad z50 Mobile Companion 1160 RJ-11 Assembly Hardware Button Board Top Cover Locations Front Right View Left View Right ViewRear View Bottom ViewSystem Unit Parts Listing System Unit FRU List LCD Unit Parts List CRU Power Cord For 3-pin power cordsTrademarks IBMIBM