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Troubleshooting the Analyzer
Problems at Instrument Power-Up
Table 4-1
Instrument Failure Symptoms at Power-On
ON
ON
OFF
ON
OFF
OFF
ON
M
ON
OFF
ON
OFF
ON
ON
ON
M
ON
M
ON
ON
ON
M
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
M = LED or assembly is momentarily on, then goes off.
X = Status of LED or assembly does not matter.
* DS13 remains on after
220
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
M
M
M
ON
ON
ON
M
M
M
OFF
ON
ON
OFF
M
M
M
OFF
M
ON
ON
OFF
M
M
OFF
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
ON
is pressed.
PRESET
Possible Cause
ON
ON
Normal Operation*
ON
ON
W1 wiring to Line LED, or Line
LED
OFF
OFF
Line fuse, A8 primary circuit
failure
M
X
A8 primary overload
−15 V supply failure
ON
X
−15 V supply overload
M
X
ON
X
+15 V supply failure
M
X
+15 V supply overload
M
X
+5 V supply failure or supply
overload
OFF
OFF
+12 V supply failure
OFF
OFF
+12 V supply overload
OFF
ON
Fan failure or open along +12 V
supply line to fan
ON
OFF
NoWRUP signal
ON
X
A16 assembly failure
ON
OFF
Display failure, intensity-control
failure, or A16 memory failure
ON
M
Intensity control failure, or A16
memory failure
Chapter 4
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Table of Contents
Troubleshooting
