Texas Instruments TI-99/4A - TROUBLESHOOTING GUIDE; Common Hardware Problems and Solutions

TROUBLESHOOTING
GUIDE
Problem
Power indicatorfails to light when the power
switch is turned on
Picture and/or sound fails
Joysticks do not operate correctly
Cassette recorder does not operate correctly
Computer will not respond to input at the key
board; garbled characters or other erratic symp
toms are present
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