Editing Apple Trackball (section)

== Internal Construction ==

=== Kensington Turbo Mouse Disassembly ===

'''Tools required:'''
* Phillips screwdriver #1
* Plastic spudgers
* Isopropyl alcohol for cleaning

'''Disassembly procedure:'''
# Remove trackball by inverting unit
# Locate and remove 2-8 screws (varies by version)
# Note: Version 3.0-4.0 have screws hidden under label
# Separate top and bottom case halves
# Disconnect ribbon cable if present
# Remove PCB mounting screws

'''Internal components:'''
* '''Main PCB:''' Contains ADB controller and button switches
* '''Sensor board:''' Optical or mechanical encoders
* '''Cable:''' Usually non-removable, strain relief critical
* '''Bearings:''' Ruby or ceramic ball supports

=== Common Maintenance Procedures ===

==== Ball and Bearing Cleaning ====

'''Cleaning schedule:'''
* '''Light use:''' Every 3 months
* '''Heavy use:''' Monthly
* '''Signs needed:''' Erratic cursor, increased resistance

'''Procedure:'''
# Remove ball and inspect for damage
# Clean ball with mild soap and water
# Clean bearings with isopropyl alcohol on cotton swab
# For optical models, clean sensor windows
# Lubrication generally not recommended

==== Roller Maintenance (Mechanical Models) ====

'''Cleaning rollers:'''
# Remove accumulated debris with tweezers
# Clean with isopropyl alcohol
# Check for flat spots or grooves
# Replace foam cleaning pads if degraded

'''Roller replacement:'''
* Source from donor units
* Some compatible with mouse rollers
* Ensure proper spring tension