Constant or Intermittent communication and dropouts caused by faulty EPC - WKB4863

SYMPTOMS

• Intermittent communication with MS or no communicaions at all
• Random dropouts or system unresponsiveness seen while idle, in Standby, or during acquisitions

Errors seen may include any the following at different times:

• Cannot communicate to EPC via Hyperterminal
• Cannot ping IP address of EPC
• NetEvaluator shows red / no connection to the MS, but the inlets are okay
• LED light on EPC is red
• Error message: "Probe not connected"
• On board diagnostic page, the RF Barrier PCB is not visible
• Error "lost connection to embedded PC" and must perform a full reboot of PC and MS

ENVIRONMENT

• Xevo TQ Absolute
• Xevo TQ cronos
• Xevo TQ micro
• Xevo TQ-XS
• Xevo TQ-S
• Xevo TQ MS
• Xevo TQD
• Xevo TQ-GC
• SQ Detector 2
• MassLynx

CAUSE

Faulty EPC

FIX or WORKAROUND

1. Replace the EPC 
2. Check which MassLynx version supports the new EPC. (Select your instrument from this article  WKB554)

ADDITIONAL INFORMATION