Edgetech 3200-XS User Manual page 57

Table 4-1:
SYMPTOM
When performing the
predeployment tests,
transmissions from the
transducers are not heard.
(Cont.)
When performing the
predeployment tests, signals in
the Sonar display are not
present.
System Troubleshooting Guide (Continued)
PROBABLE CAUSE
The Power Amplifier has failed.
The test pulse file is corrupted or
missing.
The Tiger board has failed.
The tow vehicle cable harness
connections are loose.
12 VDC power for the preamplifier
is not present.
5 VDC from the preamplifier in the
tow vehicle is not present.
Troubleshooting
CORRECTIVE ACTION
Replace the Power Amplifier.
Contact EdgeTech for instructions
on how to recover the test pulse
file.
Replace the Tiger board.
Verify that all the cable harness
connectors in the tow vehicle are
properly mated.
Measure the voltage between the
12 VDC OUT TO PREAMP test
point and the PREAMP COMMON
test point on the back of the Deck
Unit. This voltage should be
12 VDC.
If 12 VDC is not present, verify
that it is present on the Tiger
board in the 3200-XS Topside
Processor.
If 12 VDC is not present on the
Tiger board, repair or replace the
Tiger board.
Measure the voltage between the
TOWFISH PREAMP 5 VDC test
point and the PREAMP COMMON
test point on the back of the Deck
Unit. This voltage should be
5 VDC.
If 5 VDC is not present, check the
tow cable and the spider mold in
the tow vehicle and repair or
replace them as necessary.
If 5 VDC is still not present,
replace the preamplifier in the tow
vehicle.
4-9