1. PS VFE & PS/SPD FE Electronics Status and Plans 20 February 2008 LPC Clermont

2. 2 PRS C Side Dommages  PS cables damaged in detector movement (pulse generator): Cut cables: 1 RJ45 signal (SM4T-01) 1 LED trigger cable (SM3) + other cables suspected damaged ( LV PRS VFE, RJ45 signal, LED trigger ? ) PRS TOP boxes oppened last week & fully checked:  LV connectors pulled out of VFE (by pulse generator?): re-connected  No other PRS hard damage / RJ45 cut cable / spare used & cable repaired All C side VFE and their connections tested functionnal last week 4 VFE were seen KO in SM4 Top

3. 3 PRS VFE Powering & Cooling  VFE Marathons ‘patched’ on both sides. PRS voltages re-tuned @ ±4 V, following J. Lecoq ‘expert’ recommendation.  All VFE LV power channels fused and connected on patch pannel: A + C side.  VFE Cooling installed on A side (thanks Philippe!). Restored yesterday, both sides, after some confusion …  Temperature is Monitored:  varies from, All OFF: 18-20 ºC to All ON: 25-27 º C ( I confirm … )  Issue on PRS SM7 Bottom box. Not cooled. Air buble in the pipe? Under investigation.

4. 4 DAQ: FEB / CROC Exchange PRS2/PRS3 BEFORE AFTER PRS3 PRS2

5. 5 DAQ: FEB / CROC Synchronisation C Side (8 FEBs)

6. 6 DAQ: FEB / CROC Synchronisation A Side (8 FEBs)

7. 7 Outlook C side operational:  CROC sync. Issue (PRS2 now)  Calibration measurements ongoing for VFE synchronization A side close to operational:  CROC sync. Issues (PRS4 & ~PRS7)  Cooling issue on SM7 Bottom  Calibration measurements required for VFE synchronization