HP 8753E Service Manual

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.I /._.._..-/__//i AL.< A..>
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Change frequencies with the front panel keys or
knob. The output of the Al4 assembly can be
checked at A14Jl HI OUT (in high band) or A14J2
LO OUT (in low band) with an oscilloscope, a
frequency counter, or a spectrum analyzer. Siiai
jumps and changes in shape at 20 MHz and 30 MHz
when tuning up in frequency, and at 29.2 MHz and
15 MHz when tuning down, are due to switching
of the digital divider. This mode can be used with
the SRC TUNE mode as described in “Source
Troubleshooting” chapter.
accesses the functions that ailow you to adjust the
source:
._
~~~~~ .~~~~~~~~ tests the p&me fun&ions
of the phase lock and source assemblies Use
the entry controls to set test port output to any
frequency from 300 KHz to 6 GHz. When in this
mode:
q Set analyzer to CW frequency before pressing
~,~~ ..= . ..- ~ .(H(
~~~~~~~.~. .
q Test port output is 1 to 6 MHz above indicated
(entered) frequency.
q Instrument does not attempt to phase lock.
o Residual FM increases.
. . . . . . . . . . . . . . . . . . . . . . . . . . . ..~..............i............................... . .. . . . . . :.; . . . . . . . . . . . . . . . . . .,.,. ,.................
_ . . . . . . . . . . . . . . . . . . . . . _ _ . . . _ _ .,.,...,.,. / . . . / . . . . . . . . . . . . . . . . . . . . . .
~~~~~~ &ow you to change the somce
tune frequency.
_ .;,_ ,_; _.,.,,.......,...,.,..................i _
::..::::.: . . . . . . . . . . .:.x . . . . . . . . . . . . . . .
~~~~~~~~ toggles the automatic leveling
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control (ALC) on and off.
~.~~~~~~~~~
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::;:::... “.::::“:::::~::::::::~..:::.::::::::..:~:::::::::::::::::::::::::: .; ;..::::.:
~~~~~~~~~~
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. . . . ..c.. ii...........i
~~~~~~~~~
m _ _ _ _ _; _ _ _ _i_i _ i
.,,....,,....... .::: ..::..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . * . . . . . . . . . . . . . . . :<:
.~~~~~~~~~~~~~.
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Service Key Menus and Error Messages
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HP 8753E Specifications

General

Brand	HP
Model	8753E
Category	Measuring Instruments
Language	English