I have KFC monitor with speakers built in, which doesn't seem to work.
Before digging ino the fairly unlikely possibility that the audio electronics of your monitor aren't working because some overvoltage "crowbar" sort of protection circuitry has kicked in, can you give us more information regarding the whole problem:
- When did the speakers stop working, or have they never worked for you?
- What is the exact model # of the monitor?
- Have you tried the monitor on more than one computer, or have you tried to rule out software problems in any other way?
- If the monitor's speakers have a separate jack/wire for the audio, what happens if you power up the monitor and then plug the audio jack into the "line out" of some (low output wattage!) audio device other than the computer's audio card?