Agilent Technologies 8752C, Руководство по обслуживанию, Страница: 324 / 510

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PLL DIAG on OFF (SM5)
displays a phase lock sequence at the beginning of
each band. This sequence normally occurs very
rapidly , making it dicult to troubleshoot phase lock
problems . Switching this mode ON slows the process
down, allowing you to inspect the steps of the phase
lock sequence (pretune , acquire , and track) by
pausing at each step . The steps are indicated on the
display , along with the channel (C1 or C2) and band
number (B1 through B13).
This mode can be used with PLL P A USE to halt the
process at any step . It can also be used with the
analog bus counter .
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PLL PAUSE used only with PLL DIA G mode .
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CONT indicates
that it will continuously cycle through all steps of
the phase lock sequence .
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PAUSE holds it at any step
of interest. This mode is useful for troubleshooting
phase-locked loop problems .
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MORE
A ccesses the service modes more menu listed below .
10-22 Service K ey Menus and Error Messages