How To Find & Make A Backup Copy of Noran System Six (NSS), Noran System 7 (NS7) Software License Key

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Issue:

Users need to back up the license key for Noran System Six (NSS) or Noran System 7 (NS7) software to ensure it can be easily restored during a software installation.

Environment:

Software: Noran System Six (NSS), Noran System 7 (NS7)
Required Tools: MS-Word or WordPad

How to Check for ±24V on the EDS2 Board

Issue

The EDS Power Supply indicates "Red LEDs On" from the Front End Status Display. This suggests a potential issue with the power supply outputs.

Environment

Product: EDS2 Board
Instrument: Analyzer Power Supply
Relevant Outputs: +5V, ±15V, ±24V
Indication: Front End Status Display showing "Red LEDs On"

Resolution

To troubleshoot the issue with the ±24V power supply on the EDS2 board, follow these steps:

Use a Digital Voltmeter (DVM):
- Verify the Analyzer Power Supply Outputs +5V, ±15V.
- Confirm that the ±24V are actually present.
Locate Test Points:
- Identify two crucial test points on the EDS2 board:
  - N & P 24V: Regulator outputs
  - N & P 24VF: Filtered regulator outputs
Measure Voltage:
- Clip the meter lead onto the terminals indicated in the images provided.
- Ensure accurate voltage readings at these test points.

Images

EDS2 Board Schematic — Schematic of the EDS2 board showing the test points.

EDS2 Board Terminals — It should be easy to clip a meter lead onto these terminals to measure.

EDS2 Board - How to Check — Step-by-step guide on how to check for ±24V on the EDS2 board.

Analysis (Optional)

No additional analysis provided.

Cause (Optional)

The root cause of the issue is not specified in the provided documents.