ALARM $: ALARM1, 2Symptom: The arc monitor alarm (ARC ALARM$) is ON.Cause: The arc monitor alarm signal is being issued.(The arc monitor alarm signal is outputted only when an alarm is being raised. No self-holdingavailable)Cause: Failure in the arc monitorCause: Arc monitor signal (D/I) line error“Remedy 1” should be taken first. If no recovery is secured, proceed to “Remedy 2” and further.Remedy 1: Check the cathode for abnormal discharge. Also check the used recipe and logging data forpossible error.Remedy 2: a. If turn-OFF of the arc monitor alarm signal fails at Remedy 1, check the arc monitor for possiblefailure.(Multiple channels are assigned to the arc monitor, which requires proper tuning to the channel ofthe intended module.)b. If no recovery is secured at Remedy 1, check the signal line including MS-IVA for possible error.Remedy 3: a. Re-perform the same process to check for possible error. Condition the inside of Chamber throughprocessing a dummy lot.b. If feasible, vent the chamber to atmosphere and check for the presence of a trace of abnormaldischarge.c. If there is, perform necessary tasks such as replacement of the target and shield.