Mainframe troubleshooting
I/O slot tests
Run this test to
verify that each TG8000 module slot is functioning. Yo u w ill need
a GPS7 Synchronization and Timecode module to perform this test.
1. Install the GP
S7 module into slot 1 of the TG8000 mainframe.
2. Restart the instrument in Factory mode:
a. Press and hold the MODULE, ENTER,andFront Panel ENABLE
buttons simultaneously.
b. Continue holding the buttons until the message TG8000 Booting...
displays.
c. When the message TG8000 Booting... displays, release the MODULE
and ENTER buttons. Continue holding the Front Panel ENABLE
button.
d. When the message TG8000 Start up with Factory Mode displays,
release
the Front Panel ENABLE button.
3. Run the GPS7 diagnostics as follows:
a. Press MODULE to display the GPS7 main menu.
b. Press the up (▲)arrowbuttontoselectDIAGNOSTICS, and then press
ENTER.
c. Press the up (▲)arrowbuttontoselectIO test.
d. Press ENTER to run the test.
4. If a failure occurs, record the error code(s) and refer to the error code table.
(See Table 2-3.)
5. Disconnect power from the TG8000.
6. Mo
ve the GPS7 module to an untested slot and repeat steps 2 through 6
until all slots have been tested.
2–12 TG8000 Multiformat Test Signal Generator Service Manual
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