Keysight 654xA, 655xA, 664xA, 665xA Error E1: Front panel RAM test failed (power-on).

GPIB DC Power Supply · taken from the manufacturer’s manual, pages cited

Error codeE1

Front panel RAM test failed (power-on) due to a defective microprocessor A3U3. The manual lists no action for this code.

Model
Keysight 654xA, 655xA, 664xA, 665xA
Display shows
Front panel RAM test failed (power-on). (E1)
Type
Error code
Source
Manual p. 37

What E1 means

Front panel RAM test failed (power-on). p. 37

Common causes

  • Microprocessor A3U3 defective. p. 37

If E1 is still not resolved

The manual gives no further instruction for this code. Open the code table in the PDF or contact Keysight service.

Open the manual at page 37 All 654xA, 655xA, 664xA, 665xA error codes Manual details & download

This page summarises what the manufacturer’s manual says about E1; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Keysight. Found a mistake? Report an error.