iBook G4 sleep problem

Hello again,

Sorry that the PMU reset didn't work. When you say it goes into sleep mode, does the sleep light come on, or does the screen just go black without the light?

Randy

Here are the PMU reset steps:

1. If the computer is on, turn it off.
2. Reset the power manager by simultaneously pressing and then releasing Shift-Control-Option-Power on the keyboard. Do not press the fn (Function) key while using this combination of keystrokes.
3. Wait 5 seconds.
4. Press the Power button to restart the iBook computer.

Are you able to boot successfully from your install DVD? I'm guessing at this point, but it could be the reed switch. I'll recruit some more experienced help for you.

Randy

Hey Lemon,
So if the PMU reset doesn't help it indeed could be the sleep switch which is actually a reed switch. It is possible to disconnect that switch depending on the exact model of iBook you have. We'll need the speed and screen size.
Richard

Lemon,

It's a 12" screen 1.33 I believe

If that's correct it's one of the easiest to deal with.
You should actually be able to see the reed switch connector in the bottom right of the RAM enclosure. It should have a red and black wire connected to it. Disconnecting that two wire cable will disable the reed switch. If that corrects the sleep problem then you've found the problem.
Here's an interesting note from the service manual.
Talking about the reed switch:
"Verifying the Board Version
Important: In October 2006, a new reed switch board (Apple part number 922-7829) was created. The new design is intended to minimize the risk of breakage to the glass switch.
Before reassembling the computer, make sure it includes the newer reed switch board. If the old board is installed, replace it regardless of whether the board is functional or not.
1. Check the top of the reed switch board, if the cable is soldered to the top of the board, as shown below, it is the new version, and no replacement is needed.
2. If the cable is soldered to the adhesive side of the board (as shown below), it is the old version. Replace the board with the newer version as described in this section."
So that would imply that these reed switches were subject to breakage.
If you need further instructions email me.
Richard

Lemon,

so I removed the Reed Switch, and everything started up like it should. Thanks so much for all of your advice!! I really appreciate it!

Yah! Always rewarding to solve a problem.

there is a clicking in the HD,

If that's that cyclic clicking, sometimes called the "click of death", then that is a problem.
Usually drives are guaranteed for at least a year (many for 3). Talk to your supplier or manufacturer about a replacement.
Richard

Message was edited by: spudnuty

I am having the same issues as you where and I'm wondering the difficulty level of disconnecting the reed switch did you have to disassemble the iBook to do so, also did you replace the reed switch or simply disconnect it so it doesn't function? Any help you can offer is greatly appreciated! Thanks in advance!