8 Troubleshooting
122
The transducer appears
not to work, and:
EITHER the transducer
Finder LED lights up
briefly after plugging in
the transducer, and INOP
Bus Master Malfunc
is
displayed, or the
transducer Finder LED
lights up briefly
aft
er
plugging in the transducer,
and there are no
parameters on the screen
(transducer is not
recognized).
The INOP
Bus Master
Malfunc
is displayed.
Transducer is defective
Replace the transducer.
All transducers (US, Toco,
IUP, and ECG) do not
work.
The INOP
Bus Master
Malfunc
is displayed.
The Bus Master Board is defective.
Replace the Bus Master Board.
The transducer is
connected, the INOP
Bus
Master Malfunc
is
displayed.
The Main CPU board is defective.
Replace the Main CPU Board.
The transducer is defective.
Replace the transducer.
An interrupted transducer upgrade, or
software based malfunction of the
transducer, including communication
problems between the Bus Master Board
and the transducer.
Perform a software upgrade of the
transducer with the Support Tool.
The transducer belt
button is broken or
damaged.
Mechanical damage
Replace the belt button.
Handle the transducers with care. Never use
a transducer with a broken or damaged
knob.
Symptoms
Possible Cause
Failure Isolation and Remedy
Summary of Contents for Avalon FM20
Page 2: ......
Page 6: ...6 ...
Page 38: ...3 Installation Instructions 38 ...
Page 46: ...4 Theory of Operation 46 ...
Page 155: ...10 Repair and Disassembly 155 11 Put the two halves of the display assembly together as shown ...
Page 167: ...10 Repair and Disassembly 167 10 Remove the four screws holding the recorder chassis ...
Page 169: ...10 Repair and Disassembly 169 12 Remove the RFI bracket 13 Lift out the recorder chassis ...
Page 254: ...12 Specifications 254 ...
Page 259: ......
Page 260: ...Part Number 453564541271 Published in Germany 11 14 453564541271 ...