GE M
EDICAL
S
YSTEMS
PROPRIETARY TO GE
D
IRECTION
2294854-100, R
EVISION
3
LOGIQ™ 9 P
ROPRIETARY
M
ANUAL
7-28
Section 7-7 - Acquisition Diagnostics
7-7-4-7
System-Level Digital Diagnostics
•
All System-Level Digital Diags
: Targets system communications and digital system functions
(those functions which rely on multiple boards for performance, but do not target analog circuitry).
•
TD Access Diag
: Tests all of the Access Modes utilized for Host/TD communication, as well as
Channel RAM to Rigel transfers.
This diagnostic includes single-location accesses, single-board broadcasts, and multiple-board
broadcasts. The diagnostic will adjust its parameters depending upon how many TD boards are
installed in the system.
•
Comprehensive Signal Path Diag
: Tests the signal path of every channel from the TD Rigel
Transmit Memories to the SCB, via both the EQ and BMP.
This Diagnostic puts the entire digital signal processing path together for the most comprehensive
digital data path test available to the system. The system setup for this Diagnostic is shown in
Figure 7-27. This diagnostic tests the following functions:
-
TD signal paths.
-
TD - EQ data communication.
-
EQ - BMP data communication.
-
EQ - SCB data communication.
-
BMP - SCB data communication.
-
SCB's ability to simultaneously receive and process I/Q and BM data.
This diagnostic will need to verify each receive channel by itself, and also all receive channels at
once (to test the summing and the upper bits of the data path).
Figure 7-27 System-Level TD-EQ-BMP-SCB Block Diagram
XDIF/RF
TD’s
EQ
BMP
Scan Control Board
Host
PCI
PCI
PCI
IQ,
RxSYNC
BM
IQ
IIC
RF
Probe
RF
TD
CTRL
TxSYNC
RxSYNC
TxSYNC
TxSYNC
