Lenovo PC 300 IBM PC300 (Type 2169) - Hardware Maintenance Manual (September 2 - Page 99
Mouse, Do You See The Mouse Cursor In - stick
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003 - DOES THE KEYBOARD FUNCTION CORRECTLY? (YES, READ AHEAD. NO, GO TO STEP 004.) q Keyboard is functioning normally. q End. 004 - ARE THERE ANY STUCK KEYS OR ANY GRIME IN THE GAP OF KEYCAPS? (YES, READ AHEAD. NO, GO TO STEP 005.) q Power off the system unit. Carefully remove the grime and solve the stuck keys problem. q Go to step 001. 005 - ARE THERE ANY BROKEN PINS IN THE KEYBOARD PLUG? (YES, GO TO STEP 007. NO, READ AHEAD.) q Try with a known good keyboard. 006 - DOES THE ERROR SYMPTOM STILL REMAIN? (YES, READ AHEAD. NO, GO TO STEP 007.) q Replace the system board. q End. 007 q Replace the keyboard. q End. q Mouse NOTE: A sticking key button can cause the mouse to operate incorrectly. If you suspect this, go to "Keyboard" on page 96. 001 - START q Make sure that the mouse ball turns freely. q Make sure that the mouse plug connects properly. 002 q Power off the system unit. q Insert the diagnostics diskette into the diskette drive. q Power on the system unit. q Select Interactive Tests menu, then execute Mouse test. 003 - DO YOU SEE THE MOUSE CURSOR IN THE DIAGNOSTICS PROGRAM? (YES, READ AHEAD. NO, GO TO STEP 011) 97