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Safety Precautions
Troubleshooting
Thermo Scientific
Chapter 6
Troubleshooting
This chapter presents guidelines for diagnosing analyzer failures, isolating
faults, and includes recommended actions for restoring proper operation.
Read the safety precautions in Appendix A, "Safety" before performing any
actions listed in this chapter.
Table 6–1
platform and indicates the checks that you should perform if you
Guide
experience an instrument problem. It also lists 49iQ specific
troubleshooting information and alarm messages you may see on the
graphics display and provides recommendations about how to resolve the
alarm condition.
Table 6–1. 49iQ Troubleshooting Guide
Problem
Instrument does not
start (LEDs on front
panel do not come on
and display is blank)
Front panel display
does not start (LEDs
on front panel are off)
Front panel display
does not start (LEDs
on front panel are on)
Front panel display
stays white after
power up (LEDs on
front panel are on)
provides general troubleshooting information for the common
Possible Cause
No power
Fuse is blown or missing
Bad switch or wiring
connection to switch
Disconnected ribbon cable
Defective Display
Unseated or missing Micro
SD card
Action
Verify that the power cord is plugged
in, power is available and that it
matches the voltage and frequency
configuration of the instrument.
Disconnect power and check fuses
with a volt meter.
Check for 24V @ J9 on the Backplane
board (middle pins). Check all wiring
connections.
Power down and evaluate
connections of display ribbon cable.
Connect to the instrument using
ePort. Select "Remote Interface". If
normal GUI is displayed, replace
defective display.
Power off, re-seat Micro SD or install
if missing.
49iQ Instruction Manual 6-1
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