IBM 6645 Personal Computer User Manual


 
Check Procedures 61
008 -
Make sure that the volume control is not turned
low.
Make sure that the speaker and its adapter are not
damaged.
Make sure that the speaker is plugged in speak-
out jack. See “System Board Jumpers and
Connectors” on page 105.
If the error cannot be resolved, replace the system
board.
End.