Troubleshooting; Troubleshooting Problems With The Ld5200; Table D.1 Troubleshoot Problems With The Ld5200 - RLE Technologies LD5200 User Manual

D.1.

Troubleshooting Problems with the LD5200

Problem
Control Panel will not
Power Up
Unit Powers Up
without Proper
Display on LCD
Table D.1
rletech.com
Action
1 Check with a DVM (digital volt meter) for AC input power on the
AC power input terminal. If no AC power is present at the
terminal block, check the input circuit breaker that powers the
LD5200. If voltage is present, go to step 2.
2 Check for 24 VDC at input power terminal block, TB7 pins 1 and
2. If no voltage is present across these pins, the power supply
has failed. Contact RLE Technologies for a replacement. If
voltage is present, contact RLE Technologies for further

troubleshooting.

1 Open the front door and verify that the connectors that link J2 on
the LCD display board with J4 on the main board are fully
connected and the wires are undamaged.
2 Update the front panel LCD's firmware. Refer to "System/Flash
Management" on page 82 for more detailed instructions.
Troubleshoot Problems with the LD5200
LD5200 User Guide
T
ROUBLESHOOTING
C 0
HAPTER
A
P P E N D I X
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