Keyboard making chirping sound every time I hit a key

Hi my daughters usb keyboard just stopped working the other day. When we enter a key on the keyboard all we get is a beep/chirp sound and the key we touched did not get recognized by the computer. I have tried 2 different keyboards and had the same results. I have also tried both keyboards on a different Mac and they seem to work fine.
Would this be a software or possibly a USB problem. Any help would be great! Thank You

Blue & White G3 Mac OS 9.2.x USB keyboard

Posted on Oct 6, 2006 12:45 AM

Reply
3 replies

Oct 6, 2006 7:16 AM in response to Jon Aronson1

The keyboard does not have anything in it that can make such a noise, so you have a wider problem than just the keyboard. Your Mac is seeing something, otherwise its complaints would not coincide with key-presses.

When you have wacky problems on a Mac that can boot form an OS 9 CD, the quickest way to cut the problem in half is to boot from a Mac OS 9 System/Install CD. If the problem goes away, its something about your Hard Drive and the software on it.

USB ports on Blue & White Macs have been known to go bad. You cpould try plugging the mouse directly into the USB on the computer.

Oct 6, 2006 7:53 AM in response to Jon Aronson1

Jon,

Welcome to the posts. As Grant indicated, the beeps are error messages from the computer. Reset the computer by pressing the button on the front of the computer, or, if the mouse works - it may not work because some dialogue box wants a response and all non-responsive input will result in a error beep - choose restart.

Hold down the shift key while starting up and that will turn extensions off. See if that makes a difference. Plug the mouse into the computer instead of the keyboard and try to isolate what works and when.

Jim

Oct 6, 2006 10:11 PM in response to Jon Aronson1

Hi, Jon -

If the problem does not go away when you boot the machine to a CD, then it is a hardware issue.

One item that can cause something like that is a damaged USB port or cable; such damage can cause shorts in the USB circuits. One item to consider in that regard is the mouse, particularly if you are using an Apple Pro mouse - those have a known defect, where the wires inside the cable can fray at the point the cable leaves the mouse body. The test for that is to boot with the mouse disconnected, or with a different, known-good mouse.

***

If it does go away when you boot to a CD, the source is almost certainly software in origin.

It could be one or more of the OS files. A way to check for that and to narrow down possible causes is to boot with Extensions Off - restart or boot, immediately press the Shift key, keep it held down until you get the message "Extensions Off".

• If the problem has disappeared, then you have an extensions conflict, or a damaged extension. You would then need to solve for that.

One item to look for would be an old version of SoundMaster.

• If the problem does not then disappear, the base OS files themselves are damaged. The solution then would be to do a Clean Install of OS 9 using the most recent OS 9 Install CD you have which is valid for that machine, and update that install as needed to OS 9.2.x.

If the installed OS version is OS 9.2.1, and you have a retail OS 9.2.1 Install CD, there is another option - to do a custom install of just the Core System components. To do that -

- Boot to the CD, run the installer. When you select your hard drive and click okay, you'll be asked what you want to do - click Reinstall. On the last page of the installer, the page with the Start button, click the Customize button.

- On the new page, uncheck everything (make sure they have neither checks nor dashes) except Mac OS 9.x; to the right of it is a pulldown menu, preset at Recommended Installation - select Customized Installation from that.

- In the new window, uncheck everything except the first item, Core System Software - again, make sure none of the other boxes have checks or dashes. Click Okay, click Start. That will re-install the System, Finder, and other basic OS files, and nothing else.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Keyboard making chirping sound every time I hit a key

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.