TM 5-3895-374-24-1The FollowingProbable CauseRecommended ActionError Exists1 Monitor logic in Run mode and verify desired 1/0statusUser Program2 Check for minor CPU faultsSystemLogic ErrorInoperable, CPURefer to the Advanced Programming Software UserFaults DetectedManual (Catalog Number 1747-NM002)Devices or I/0Test inputs and outputs according to I/O troubleshoo tingDevices or I/0procedures starting on page 926WrongThe FollowingProbable CauseRecommended ActionError ExistsCPU MemoryCycle powerError11 Remove power and then remove the memory modulefrom the processor2 Re-install the processor and reapply power to thepower supplyFaulty MemoryModuleIf steady FLT LED changes to flashing, replace the existingmemory module with a replacement moduleRefer to chapter 5 for removing and installing memorymodulesCPU Fault1 Place the processor In another chassis not in theexisting system and cycle powerIf steady FLT LED reappears, replace theprocessorFaulty CPU/Power2 If FLT LED clears, monitor the line power going to thepower supply in existing system3 Replace existing system power supply if line powerchecks OKProcessorIf upgrading the processor to a different firmware level,Firmware Installedverify firmware chip ornamentation matches the upgrade kitIncorrectlydirectionsRefer to the following key to determine the statusof the LED indicatorsIndicates the LED is OFFIndicates the LED is ONIndicates the LED Is FLASHINGStatus of LED does not matterChapter 9Troubleshooting(page 3-447)
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