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:
90 degrees more
(Cross section)
Logic card to plastic
Turn an additional 180 degrees after the screw head
touches the surface of the logic card:
180 degrees more
(Cross section)
Torque driver
42
ThinkPad X20
Summary of Contents for ThinkPad X20
Page 1: ...IBM Mobile Systems ThinkPad X20 Series computer Hardware Maintenance Manual June 2000 ...
Page 2: ...IBM Mobile Systems ThinkPad X20 Series computer Hardware Maintenance Manual June 2000 IBM ...
Page 3: ...i ...
Page 36: ...30 ThinkPad X20 ...
Page 58: ...1060 Mini PCI adapter Battery pack 1010 Keyboard assembly 1050 6 52 ThinkPad X20 ...
Page 60: ...1080 LCD assembly Battery pack 1010 Keyboard assembly 1050 1 ThinkP ad 2 54 ThinkPad X20 ...
Page 69: ...Step Screw quantity Torque 1 M2 3 5mm 2 BK 19 6 Ncm 2 kgfcm ThinkPad X20 63 ...
Page 71: ...1 Step Screw quantity Torque 1 M2 3 5mm 2 BK 19 6 Ncm 2 kgfcm ThinkPad X20 65 ...
Page 84: ...78 ThinkPad X20 ...
Page 86: ...IBM Part Number 19K6850 Printed in U S A 19K685ð ...