English 61Appendix A The Error Codes0400h – 04FFh: Keyboard Error Codes0400h – 04FFh: Keyboard Error CodesCode Explanation Details/Parts to Check0400h The HP Hardware Diagnostics utilityreceived a keyboard controller interfaceerror.Keyboard controller error.Install new system board.0401h The HP Hardware Diagnostics utilityissued commands to keyboard controllerand received improper responses.Keyboard controller error.Install new system board.0410h –0411hKeyboard clock line is stuck low/high. Keyboard or keyboard controller error.Check that keyboard is connected correctly.If error persists, install new system board.0412h –0413hKeyboard data line is stuck low/high. Keyboard or keyboard controller error.Check that keyboard is connected correctly.If error persists, install new system board.0414h The HP Hardware Diagnostics utilityissued a command to the keyboard andeither did not receive a response orreceived an improper response.Keyboard or keyboard controller error.Check that keyboard is connected correctly.If error persists, install new system board.0415h Keyboard LED could not be turned on. Keyboard error.Replace the keyboard.0416h Keyboard diagnostic echo failed. Keyboard or keyboard controller error.Replace the keyboard.If error persists, install new system board.0417h Keyboard is not responding to command. Keyboard or keyboard controller error.Replace the keyboard.If error persists, install new system board.guard.bk : g-e-ref1.fb4 Page 61 Wednesday, June 30, 1999 3:06 PM