44.201 bytes

Service Hints & Tips

Document ID: LWIK-3SQN3Z

TP 600/E - FRU Removals and Replacements

Applicable to: World-Wide

The following information is intended for IBM Dealers and Authorized Servicers only. Customers attempting to follow any of the procedures below may void their warranty.

FRU Removals and Replacements
This section contains information about removals and replacements.
o Do not damage any parts. Only certified and trained personnel should service the computer.
o The arrows in the Removals and Replacements section show the direction of movement to remove a FRU, or to turn a screw to release the FRU. The arrows are marked in numeric order, in square callouts, to show the correct sequence of removal.
o When other FRUs must be removed before the failing FRU is removed, they are listed at the top of the page.
o To replace a FRU, reverse the removal procedure and follow any notes that pertain to replacement.
See Locations for internal cable connections and arrangement information.
o When replacing a FRU, use the correct screw size as shown in the procedures.

Safety Notice 1: Translation on page 3 Before the computer is powered-on after FRU replacement, make sure all screws, springs, or other small parts, are in place and are not left loose inside the computer. Verify this by shaking the computer and listening for rattling sounds. Metallic parts or metal flakes can cause electrical short circuits.

Safety Notice 4: Translation on page 6 The lithium battery can cause a fire, explosion, or severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100›C (212›F), incinerate it, or expose its cell contents to water. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result in ignition or explosion of the battery.

Safety Notice 8: Translation on page 9 Before removing any FRU, power-off the computer, unplug all power cords from electrical outlets, remove the battery pack, and then disconnect any interconnecting cables.

An electrostatic discharge (ESD) strap (P/N 6405959) must be used to establish personal grounding.

FRU Service Procedures
Review the following procedures before replacing any FRU.

LCD FRU Replacement Notice: The TFT LCD for the notebook computer contains over 2,359,296 thin-film transistors (TFTs). A small number of missing, discolored, or lighted dots (on all the time) is characteristic of TFT LCD technology, but excessive pixel problems can cause viewing concerns. The LCD should be replaced if the number of missing, discolored, or lighted dots in any background is 21 or more.

Replacing the System Board: The EEPROM on the system board contains the vital product data (VPD) that is, a system unit serial number and a system board serial number. When you replace the system board, restore the system unit serial number using the Set system identification utility in the ThinkPad hardware maintenance diskette. The serial number label is attached to the computer.
Note: Do not power off the computer while restoring the VPD.

Important Notice
This computer uses special nylon-coated screws with the following characteristics:
o They maintain tight connections.
o They do not easily come loose, even with shock or vibration.
o They need additional force to tighten.
o They should be used only once.

Do the following when you service this machine:
o Have a screw kit (FRU 05K4841) available.
o Always use new screws if you are instructed.
o Use a torque screwdriver if you have one.

Screw Information: The following types of screws are used in this machine. Use the correct screw in the Screw Kit (FRU 05K4841) when you replacing any FRUs. There is no number-2 screw in this kit. The number under the screw shows the length of the thread of a screw in mm.

- 1010 Backup battery
- 1020 DIMM
- 1030 Battery pack
- 1040 Hard drive
- 1050 UlraslimBay Device
- 1060 Keyboard assembly
- 1070 Keyboard
- 1080 Speakers
- 1085 Speaker cable
- 1090 LCD assembly
- 1100 PC Card assembly
- 1110 Modem card
- 1120 Sub card
- 1130 CPU card and fan
- 1140 Guide rail, microphone cable and TV out card
- 1150 System board
- 2010 LCD front cover
- 2020 LCD hinges and cables
- 2030 Inverter card

	Search Keywords
	Hint Category	Hardware Maintenance Information
	Date Created	19-03-98
	Last Updated	19-01-99
	Revision Date	19-01-2000
	Brand	IBM ThinkPad
	Product Family	ThinkPad 600, ThinkPad 600E
	Machine Type	2645, 2646
	Model	Various
	TypeModel
	Retain Tip (if applicable)
	Reverse Doclinks and Admin Purposes