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E271-2210 AccuTouch SmartSet Serial Controller Jumpers

E271-2210 Diagnostic LED (Yellow only)

Normal: Flashes 1.5 times per second; also lights with touches

Problem: Stays on solid

• Host failed to remove data packet
• Shorted touchscreen or wiring
  • Disconnect touchscreen and cycle power to detect

Problem: Flashes four times per second

• Communications problem - Suspect BAUD, etc.