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FRU replacement notices
FRU replacement notices
This section contains notices related to removing and
replacing parts. Read this section carefully before
replacing any FRU.
Screw notices
Loose screws can cause a reliability problem. The an IBM
ThinkPad computer address this problem with special
nylon-coated screws that have the following characteristics:
They maintain tight connections.
They do not easily come loose, even with shock or
vibration.
They are harder to tighten.
They should be used only once.
Do the following when you service this machine:
Keep the screw kit (P/N 05K4841) in your tool bag.
Always use new screws.
Use a torque screwdriver if you have one.
Tighten screws as follows:
Plastic to plastic
Turn an additional 90 degrees after the screw head
touches the surface of the plastic part:
Logic card to plastic
Turn an additional 180 degrees after the screw head
touches the surface of the logic card:
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ThinkPad T20 HMM
Summary of Contents for ThinkPad T20
Page 1: ...S19K 2331 00 IBM Mobile Systems ThinkPad T20 2647 2648 Hardware Maintenance Manual March 2000 ...
Page 34: ...Checkout guide 30 ThinkPad T20 HMM ...
Page 64: ...Removing and replacing a FRU 6 5 4 4 5 6 7 6 60 ThinkPad T20 HMM ...
Page 88: ...Removing and replacing a FRU 3010 ThinkPad Dock PCI cover 1 1 2 84 ThinkPad T20 HMM ...
Page 92: ...Removing and replacing a FRU The release button works correctly 88 ThinkPad T20 HMM ...
Page 108: ...IBM Part Number 19K2331 Printed in U S A S19K 2331 ðð ...