Referring to Apple's Knowledge Base (http://support.apple.com/kb/HT1547), 3 audio beeps followed by a repeating pattern of 4 flashes indicates "no good banks" of RAM detected.
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I you have added RAM in the expansion slot under the airport card, try removing it and booting without it installed. See this ifixit article: http://www.ifixit.com/Guide/Repair/iBook-G4-12-Inch-1-33-GHz-RAM/695/1 for location.
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If you have added RAM in the expansion slot under the airport card, try removing it and booting without it installed. See this ifixit article: http://www.ifixit.com/Guide/Repair/iBook-G4-12-Inch-1-33-GHz-RAM/695/1 for location.
If you get the same error without additional RAM, then the RAM soldered to the logic board has failed, and a logic board repair/replacement will be required.
Referring to Apple's Knowledge Base (http://support.apple.com/kb/HT1547), 3 audio beeps followed by a repeating pattern of 4 flashes indicates "no good banks" of RAM detected.
I you have added RAM in the expansion slot under the airport card, try removing it and booting without it installed. See this ifixit article: http://www.ifixit.com/Guide/Repair/iBook-G4-12-Inch-1-33-GHz-RAM/695/1 for location.
If you get the same error without additional RAM, then the RAM soldered to the logic board has failed, and a logic board repair/replacement will be required.