Troubleshooting Guide; Troubleshooting Via The Led Indicators - Panasonic KX-TD500 Installation Manual

5.2 Troubleshooting Guide

5.2 Troubleshooting Guide
5.2.1 Troubleshooting Guide
This subsection uses system troubleshooting flow charts to guide the service personnel in
efficient and systematic testing and fault location.
The system troubleshooting flow charts provides service personnel with a step-by-step
sequence to use for system evaluation. Isolated steps in a flow chart should never be used out
of context, since any step assumes that proper results were obtained on all previous tests.

5.2.2 Troubleshooting via the LED Indicators

When the system detects a problem, the alarm LED indicator located on the top shelf will turn
red. If the detected trouble is generated by a card, the alarm LED indicator on the card will light
up.(Refer to the figure and the table below)
When the trouble is cleared, the alarm LED indicator located on the top shelf goes off
automatically.
240
LED Indicators on the Top Shelf
RUN
LED indicators on the CP
OFF LINE ALARM
<1>
<2>
Figure 196:
Troubleshooting