Lenovo 3000 C200 manual Grounding requirements

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Safety information

Handling devices that are sensitive to electrostatic discharge

Any computer part containing transistors or integrated circuits (ICs) should be considered sensitive to electrostatic discharge (ESD.) ESD damage can occur when there is a difference in charge between objects. Protect against ESD damage by equalizing the charge so that the machine, the part, the work mat, and the person handling the part are all at the same charge.

Notes

1.Use product-specific ESD procedures when they exceed the requirements noted here.

2.Make sure that the ESD protective devices you use have been certified (ISO 9000) as fully effective.

When handling ESD-sensitive parts:

vKeep the parts in protective packages until they are inserted into the product.

vAvoid contact with other people.

vWear a grounded wrist strap against your skin to eliminate static on your body.

vPrevent the part from touching your clothing. Most clothing is insulative and retains a charge even when you are wearing a wrist strap.

vUse the black side of a grounded work mat to provide a static-free work surface. The mat is especially useful when handling ESD-sensitive devices.

vSelect a grounding system, such as those listed below, to provide protection that meets the specific service requirement.

Note

The use of a grounding system to guard against ESD damage is desirable but not necessary.

Attach the ESD ground clip to any frame ground, ground braid, or green-wire ground.

When working on a double-insulated or battery-operated system, use an ESD common ground or reference point. You can use coax or connector-outside shells on these systems.

Use the round ground prong of the ac plug on ac-operated computers.

Grounding requirements

Electrical grounding of the computer is required for operator safety and correct system function. Proper grounding of the electrical outlet can be verified by a certified electrician.

14MT 8922

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Contents Lenovo 3000 C200 Hardware Maintenance Manual Page Lenovo 3000 C200 Hardware Maintenance Manual Page Contents Iv MT Strategy for replacing FRUs Important service informationAbout this manual Important notice for replacing a system board How to use error messagesStrategy for replacing a hard disk drive Using the HMM Using PC Entitlement Warehouse PEWUsing eSupport Important information about replacing RoHS compliant FRUs Safety notices multilingual translations Diskette compatibility matrixSafety notices Safety notices Safety notices Safety notices 10 MT Electrical safety Safety informationGeneral safety 12 MT Safety inspection guide Grounding requirements Laser compliance statement 16 MT Read this first What to do firstRead this first Related service information Passwords Power-on passwordHow to remove the power-on password If no SVP has been setPower management How to remove the hard-disk passwordScreen blank mode Standby modeHibernation mode Checkout guide Testing the computerCreating the PC-Doctor diagnostics diskette Diagnostics Interactive Tests Power system checkout Detecting system information with PC-DoctorHardware Info UtilityChecking operational charging Checking the battery packChecking the ac adapter Terminal Voltage V dc Lenovo 3000 C200 Specifications Product overviewCmos RAM Status indicators Indicator MeaningFRU tests Following table shows the test for each FRUFn key combinations Key combination DescriptionSymptom-to-FRU index Numeric error codesDMA test failed System board 02F6 Error messages To boot fromErrors without messages LCD-related symptomsIntermittent problems Undetermined problemsRetaining serial numbers FRU replacement noticesScrew notices Reading or writing the ECA information Restoring the serial number of the system unitRetaining the Uuid 42 MT Removing and replacing a FRU Battery pack Hard disk drive slot cover Hard disk driveBluetooth daughter card BDC PCI Express Mini Card for 802.11 a/b/g wireless LAN PCI Express Mini Card for 802.11 a/b/g/n wireless LAN Dimm slot cover Dimm Optical drive Thermal module slot cover 1110 Fan Thermal module Removing and replacing a FRU 1130 CPU Cover, strip E cover Keyboard When installing Function board LCD unit 62 MT Removing and replacing a FRU Top cover assembly C cover M2.5 × 3 mm, flat-head, nylon-coated Black 392 Nm Kgfcm 66 MT 1190 USB/Audio connector card VGA connector card LED card 70 MT Removing and replacing a FRU To remove the MDC, do as follows LCD front bezel B cover Inverter card Removing and replacing a FRU Remove the hinges from the LCD panel Locations Front view Rear view Bottom viewParts list Overall FRU CRU 82 MT Parts list 84 MT LCD FRUs 15.0-in. XGA TFTNMB Recovery discs Windows XP Professional CDsWindows XP Home Edition CDs Windows Vista Home Premium 32 bit DVDs Windows Vista Home Basic 32 bit DVDs Windows Vista Business 32 bit DVDs Corel software CDs AC adaptersBluetooth insulator Miscellaneous partsCommon parts list ToolsPower cords For 2-pin power cords96 MT Trademarks Part Number 42T7841