1.8 V supply low

What does 48 mean?

The 1.8 V DC internal power supply on the control card, crucial for its operation, is outside its allowable limits. This indicates a potential issue with the control card itself or an overvoltage condition if an option card is present. This can lead to erratic behavior or complete failure of the control card.

Complete Troubleshooting Guide

1. 1

   Check the control card for any physical damage or signs of component failure.

2. 2

   If an option card is installed, temporarily remove it to determine if it is causing an overvoltage condition on the 1.8V supply.

3. 3

   If the fault persists after troubleshooting, the control card is likely defective and requires replacement.