HP 70310A, Руководство по установке и проверке

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Use the following troubleshooting procedure to nd out what error conditions exist:
1. Remove the HP 70310A module from the mainframe .
2. Change the ROW address to 0 (binary 000).
3. Reinstall the module into the mainframe .
4. Connect a display to the HP-MSIB by installing a plug-in display into the mainframe or
connecting a stand-alone display to the mainframe's HP-MSIB .
5.
First press 4 DISPLA Y 5 , then
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
REPORT ERRORS .
6. Note the errors that are listed on the CRT , then refer to Chapter 5, \Troubleshooting," for
more information about those errors . Change the ROW address back to 7 (binary 111) before
doing more troubleshooting.
HP 70310A as a Slave in an HP 70000 Modular Spectrum Analyzer System
The operation of the HP 70310A module in an HP 70000 Modular Spectrum Analyzer system is
veried by checking the results of the module's power-on self-test, and by making sure that the
local oscillator in the system is using an external frequency reference .
The results of the self-test are determined by examining the front-panel LEDs and by checking
for error messages .
T o verify that the local oscillator is using an external frequency reference , the local oscillator
is queried using an HP 70000 Modular Measurement System display or an HP 9000 Series 200
controller .
Front-P anel LEDs
The power-on self-test runs automatically when power is rst applied to the module . The
following listing describes what the status of the LEDs should be immediately after the self-test
has run.
The A CT LED should be on.
The ERR LED should be on if the oven/oscillator is still cold. The ERR LED should go o
when the O VEN COLD LED goes o. HP 70310A Option 002 modules should not have the
ERR LED go on.
The O VEN COLD LED should be on if the oven/oscillator is still cold. This LED should go o
approximately fteen minutes after power-on if the module was stored at room temperature .
HP 70310A Option 002 modules should not have the O VEN COLD LED go on.
The EXTERNAL REF LED should be o if the internal frequency reference is being used.
The EXTERNAL REF LED should go on when an appropriate external reference is connected
to the HP 70310A module .
The PLL ERROR LED should be o.
Refer to Chapter 5, \Troubleshooting," if the LEDs' status is dierent than that listed above .
2-12 Installation