01-07-2010, 03:53 AM
Reset the firmware:
Turn on the Powerbook and as soon as possible press the "Command-Option-O-F" keys combination during startup. Hold until you hear a chime or you get an Open Firmware Prompt.
type: reset-nvram
Press Return.
type: reset-all
Press Return.
Your computer will restart.
The only other thing I can think of is to open System Preferences, click Sound, then click the Output tab. Make sure that "Internal speakers" is the selected sound output device. Toggle the keyboard volume controls (F3 mute, F4 volume down, F5 volume up). I know it sounds obvious but you never know.
Also you said you the cables were all seated ok, did you check the solder joints (via prodding with something small and non metal like a toothpick) and make sure the circuit board/cables to the speakers solder were 100%?
I hate Macs. I have worked on hundreds of those POS's. My hate is not blind nor unjustified.
Turn on the Powerbook and as soon as possible press the "Command-Option-O-F" keys combination during startup. Hold until you hear a chime or you get an Open Firmware Prompt.
type: reset-nvram
Press Return.
type: reset-all
Press Return.
Your computer will restart.
The only other thing I can think of is to open System Preferences, click Sound, then click the Output tab. Make sure that "Internal speakers" is the selected sound output device. Toggle the keyboard volume controls (F3 mute, F4 volume down, F5 volume up). I know it sounds obvious but you never know.
Also you said you the cables were all seated ok, did you check the solder joints (via prodding with something small and non metal like a toothpick) and make sure the circuit board/cables to the speakers solder were 100%?
I hate Macs. I have worked on hundreds of those POS's. My hate is not blind nor unjustified.