Editing Apple Mouse IIc (section)

== Common Issues and Repairs ==

=== Mechanical Problems ===

{| class="wikitable" style="width:90%; text-align:center;"
|+'''Common Mouse IIc Problems'''
! Issue !! Symptoms !! Cause !! Solution
|-
| Not recognized || IIc doesn't detect mouse || Failed ID resistors || Check/replace resistor networks
|-
| Erratic tracking || Cursor jumps around || Dirty sensors/ball || Clean thoroughly with alcohol
|-
| No X or Y movement || Single axis failure || Broken encoder wheel || Replace wheel or harvest from donor
|-
| Button failure || Click not registering || Worn Omron switch || Replace with SS-01-FD or equivalent
|-
| Intermittent operation || Works sometimes || Loose internal connections || Resolder connections
|-
| Cable problems || Connection issues || Strain relief failure || Repair cable or replace
|}

=== Diagnostic Procedures ===

'''Initial testing:'''
# Connect to Apple IIc
# Boot with MousePaint or compatible software
# Check if mouse is recognized
# Test movement in all directions
# Verify button operation
# Check for smooth tracking

'''Advanced diagnostics:'''
# Measure resistance between ID pins
# Check for proper values (10KΩ and 620Ω)
# Test continuity of all connections
# Verify optical sensor operation
# Check Schmitt trigger outputs

=== Cleaning Procedures ===

'''Basic cleaning:'''
# Remove ball and retainer ring
# Clean ball with mild soap and water
# Clean rollers with isopropyl alcohol
# Remove debris from ball cavity
# Clean optical sensors with swab
# Reassemble when completely dry

'''Deep cleaning:'''
# Disassemble mouse completely
# Clean PCB with isopropyl alcohol
# Clean encoder wheels carefully
# Check and clean all optical paths
# Inspect and clean connector pins
# Test before reassembly

=== Component Replacement ===

==== Button Switch ====

'''Original part:''' Omron SS-01-FD
'''Modern equivalent:''' Still available from Mouser
'''Alternative:''' Any compatible 6mm tactile switch

'''Replacement procedure:'''
# Desolder original switch
# Clean PCB pads thoroughly
# Install new switch
# Ensure proper orientation
# Test click action

==== Resistor Networks ====

If identification fails:
# Test resistance values
# Replace if out of specification
# RN1: 10KΩ SIP resistor network
# RN2: 620Ω SIP resistor network
# Verify proper installation

==== Cable Repair ====

'''Common failure points:'''
* Strain relief exit
* Near connector
* Internal wire breaks

'''Repair method:'''
# Identify break location
# Disassemble if internal
# Splice or replace cable
# Ensure proper color coding
# Test all connections