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Re: my ibook g4 doesn't start up
Is the power adapter the correct voltage? Does the battery show that it's charging? If the answers to these are both 'Yes' then remove the battery and try to start up again. If this works, reinstall the battery and everything should be fine. Another possibility is that you may need to reset the PMU. If none of these work, you may need to replace the Power Board/Power switch/Logic Board.
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Warning: Resetting the Power Manager on any PowerBook or iBook will permanently remove a RAM disk, if present, and all of its contents.
If the computer is on, turn it off.
Disconnect the AC power adapter.
Remove the battery.
Press and release the reset button (shown here) located above the Audio/Video port on the left side of the iBook (Dual USB) computer by inserting the end of a paper clip into the small hole and gently pressing the switch once.
Wait 5 seconds.
Reconnect the AC power adapter.
Put the battery back in the computer.
Press the Power button to restart the iBook computer.
There are several models of iBook G4. The following sequence applies to the "14-inch Early 2004."
Remove all peripheral cables. Remove the battery. Reset the power manager by pressing the key combination Control-Option-Shift- power. Then plug the iBook into AC power and attempt to start it with the power key.
If this procedure does not being it back, invasive diagnostics are required, in which case you should being it to an Apple-Certified tech for repair.
That screen will most likely be compatible - I work on these for a living. The G3 laptop screens are usually not compatible with the G4 laptops, but all G4 laptop screens are compatible with eachother (provided they are the same size, of course.
Hi there. Make sure you have the voltage and amperage right first before you try and power up the motherboard. Most laptop motherboards run on 15, 19 or 20 volts and take a different amperage like 3.42A for example. The power in will be displayed underneath the ibook so take a look there. Don't plug a 24 volt power supply into it unless it specifies that because you could damage the board.
Sir, to help you solve your problem I need a few details.
1. What is the input source?--in my country power input is 240V AC at 50 Hz.
2. What is the adapter config? Tha t is the 'mA' and 'V' rating on the adapter.
3. If it is a loose connection on the adapter(as it seems to be in your case) you can slap it and get some results for sometime.It that stops working, you will either have to open the adapter and fix the loose connection.
Or get a new adapter(recommended)
I think, this is a prob with the adapter. Even if it is not the adapter, using an adapter that works in fits and starts will damage the battery in a long run.
Please change the adapter.
Also please rate this if it was helpful.