Thermo Scientific 48iQTL, Instruction Manual

Page: 167 / 280

Thermo Scientific 48iQTL Instruction Manual 6-1
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 provides general troubleshooting information for the common
platform and indicates the checks that you should perform if you
experience an instrument problem. It also lists 48iQTL 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. 48iQTL Troubleshooting Guide
Problem Possible
Cause Action
Instrument does not start
(LEDs on front panel do not
come on and display is
blank) No power Verify that the power cord is plugged in,
power is available and that it matches
the voltage and frequency configuration
of the instrument.
Fuse is blown or
missing Disconnect power and check fuses with a
volt meter.
Bad switch or
wiring
connection to
switch Check for 24V @ J9 on the Backplane
board (middle pins). Check all wiring
connections.
Front panel display does not
start (LEDs on front panel are
off) Disconnected
ribbon cable Power down and evaluate connections of
display ribbon cable.
Front panel display does not
start (LEDs on front panel are
on) Defective
Display Connect to the instrument using ePort.
Select “Remote Interface”. If normal GUI
is displayed, replace defective display.
Front panel display stays
white after power up (LEDs
on front panel are on) Unseated or
missing Micro
SD card Power off, re-seat Micro SD or install if
missing.
Safety Precautions
Troubleshooting
Guide