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Access to Internal Assemblies
Servicing the HP 85623 requires the removal of the spectrum analyzer cover assembly and
folding down six board assemblies. Four of these assemblies lay flat along the top of the
spectrum analyzer and two lay flat along the bottom of the spectrum analyzer. All six
assemblies are attached to the right side frame of the spectrum analyzer with hinges and fold
out of the spectrum analyzer allowing access to all major assemblies. See Figure 4-l.
n To remove the spectrum analyzer cover assembly, refer to procedure 1.
w
To access the A2, A3, A4, and A5 assemblies, refer to procedure 5.
w
To access the Al4 and Al5 assemblies, refer to procedure 9.
n To remove the Al6 or Al7 assembly, refer to procedure 10.
4-2 Assembly Replacement