Path: utzoo!attcan!uunet!lll-winken!lll-tis!helios.ee.lbl.gov!pasteur!ucbvax!MTUS5.BITNET!HEINEKEN From: HEINEKEN@MTUS5.BITNET Newsgroups: comp.sys.apple Subject: BITNET mail follows Message-ID: <8808171034.aa08939@SMOKE.BRL.MIL> Date: 17 Aug 88 15:22:00 GMT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 35 Date: 17 August 88, 10:03:21 EST From: Steve King HEINEKEN at MTUS5 To: INFO-APPLE at BRL.MIL >My Apple IIe refuses to work properly. When I turn it on the entire screen >turns white, then changes to black and finally I get a message that says >Kernel OK. >It then locks up. Resetting turns the speaker on and the sequence repeats. >Kevin Meis Boy, Kevin, are you in luck! This looks like an easy one! The Apple //e (and //c, and I assume the //gs) have a built in self-test routine. On the unenhanced //e the routine clears the hi-res screen to white, then to black, repeats this, then says "Kernel OK" if everything is hunky dory. (The //c and the enhanced //e do the test by filling the lo-res screen with garbage, messing around with it a bit, then displaying "System OK".) The self-test is invoked by holding down the solid-apple (SA) key and resetting the computer. Turning the power on is the equivalent of resetting... My guess is one of three things: 1) Your SA key is stuck down. 2) You've got a joystick or paddles connected, with one of the buttons stuck. (SA is hard-wired to button(1) through an OR-gate. They do exactly the same thing.) 3) There's a short circuit somewhere in your machine making it seem like SA or button(1) is always pressed. Since you've got some hardware experience, it shouldn't be too hard to track down the error. If you can't track down the problem easily, you might want to pick up Jim Sather's "Understanding the Apple IIe" (published by Quality Software, 1985) for such handy things as schematics and other details about the computer's innards. --Steve King HEINEKEN @ MTUS5.bitnet