3-4 WorkCentre C2424 Service ManualPOST Error ReportingPOST checks the communication paths within the electronics module and to othervarious system components.POST testing initializes the control panel, and in most cases if an error occurs, a textmessage is displayed on the control panel along with an LED blink code flashing onall three LEDs (control panel LED, PS LED and PE LED). If initialization of thecontrol panel fails, POST errors will still report using the LED blink patterns. Thesum of the flashes, blinking in increments of 5, equal the error code. For example, 7flashes equals error code 7.“Soft” POST errors, that do not prevent the system from powering up Complete.ly,are displayed on the control panel for 5 seconds and then the system continuesthrough the remainder of POST. There are no rear panel LED codes associated withsoft errors. Most soft errors will cause the system to print a Startup Page with theerror message on it.Note* Before replacing the electronics module for any POST errors, do thefollowing:1. Unplug all wiring and/or cables to the electronics module.2. Plug in the AC power cable and power on the system electronics module.3. If the error blink pattern is now different from the original error reported beforeStep 1, the problem may not be in the electronics module, see "ElectricalTroubleshooting" on page 4-58.3 RapidblinkingSystem hangs during code initialization.1. Unplug all cables from the electronics module.2. Plug in the power cable.3. Power on the electronics module (system).4. If the problem still occurs, reseat the RAM DIMMs.5. Replace the electronics module. For disassembly, see"Electronics Module" on page 8-61. For replacement, go tothe parts list on page 9-12.BIST Error Reporting Blink Pattern Definition Table (Continued)PE LED PS LED Description
