GE M
EDICAL
S
YSTEMS
D
IRECTION
FK091075, R
EVISION
04
V
IVID
3N P
RO
/E
XPERT
S
ERVICE
M
ANUAL
Chapter 7 Diagnostics/Troubleshooting
7-19
7-3-6
Front End Controller (FEC) Diagnostic Tests (RFT Configuration
The FEC diagnostic tests include the following:
•
Board Test:
General board test which activates the remaining tests sequentially. Each of
these tests can also be performed individually.
•
Self Test:
An FEC self test generated by the DSP on the FEC board.
•
BF Cache Test:
Checks the access to the BF cache memory that stores the data for the
focuser.
•
TEE Temp Test:
Checks the TEE probe temperature sensor.
•
Thr Temp Test:
Diagnoses the temperature threshold for TEE probes.
•
Pencil ID Test:
Checks the pencil ID circuit in the FEC.
NOTE:
Before performing any of the FEC tests, perform the IMP, VME Bus and RFT tests, as described
beginning on page
7-13
. If an FEC test is performed without first performing these tests, and errors are
identified, you must perform the RFT test, and then the VME Bus test and the IMP test, to ensure that
the FEC board is the source of the error.
1)
Access the
FE Diagnostics
dialog box - see
7-3-1 "Accessing the Front End Diagnostic Options" on
page 7-6
.
2) In the
FE Diagnostics
dialog box, trackball to the
FEC
tab and press
Select
,
OR
Trackball to the
FEC
button in the
Data Flow Map
and press
Select
.
The
FEC
tab is displayed, as shown below:
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