Agilent Technologies 85032B/E 50 Specifiche Pagina 194

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8712ET/ES and 8714ET/ES Service Related Menus
RF Network Analyzers Select Self-Test Menu
Service Guide 5-5
Select Self-Test Menu
Internal tests can be used in troubleshooting the analyzer. Only the ones marked with an
asterisk in Table 5-1 are executed during the power-up sequence. The pass/fail status of
these tests can be checked by scrolling through the list of self-tests. Also, if any test fails
during power-up, the number of the first test to fail will be displayed on the “Test Results”
LED which is visible through an opening in the analyzer's rear panel. The “Select Self Test
Menu” can be located by selecting
.
NOTE There are two LEDs to the left of the seven-segment “Test Results” LED on
the rear panel of the analyzer. The red LED is on for self-tests 1 through 9,
and the green LED is on for tests 10 through 19. If all tests pass, the green
LED will be on, and the red LED and the seven-segment LED will be off.
Table 5-1 Analyzer Self-Tests
Test
Number
Test Name Description
* 1
680x0 Processor
Executes internal tests of 68030 main CPU and 68882
coprocessor. Checks all registers. Checks logic, math,
shift/rotate, and bit manipulation instructions.
*2 BootROM Checksum Checksum of bootROM to verify bootROM firmware code.
*3 Main ROM Checksum Checksum of flash EPROM to check main firmware.
*4 Main Dram Writes a series of test patterns to the DRAM and reads them
back. Checks size of DRAM.
5
SIMM Dram
Not used.
*6 340x0 GSP Processor Not implemented.
*7 GSP Video Not implemented.
8 (Not used.) This test number is not used because the test status LED
powers up with the number “8” as the default. If there is a
problem with the 68030 CPU, this “8” will remain displayed on
the LED. Check power supplies. If good, then replace CPU
board.
*9 DSP SRAM Checks the program SRAM used by the TMS 320C32 digital
signal processor.
*10 320C32 DSP Processor Tests the TMS 320C32 digital signal processor.
11 68030 and 320C32
Communication
Not implemented.
*12 Backplane Bus Tests the ability of the 68030 to access the other boards through
the backplane assembly.
* Denotes a test run during power-up.
SYSTEM OPTIONS
Service
Test & Adjustments
Select Self-Test
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