HP 8560A, Service Manual

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Access to Internal Assemblies
Servicing the HP 8560A requires the removal of the spectrum analyzer’s cover assembly and
the folding down of six board assemblies. Four of these assemblies lay flat along the top of the
analyzer and two lay flat along the bottom of the analyzer. All six assemblies are attached to
the analyzer’s right side frame using hinges and fold out of the analyzer allowing access to all
major assemblies. See Figure 3-l.
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To remove the analyzer’s cover assembly, refer to Procedure 1.
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To access the A2, A3, A4, and A5 assemblies, refer to Procedure 5.
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To access the Al4 and Al5 assemblies, refer to Procedure 9.
Cable Color Code
Coaxial cables and wires will be identified in the procedures by reference designation, or name,
followed by a color code. The code is identical to the resistor color code. The first number
indicates the base color with second and third numbers indicating any colored stripes. For
example, W23, coax 93, indicates a white cable with an orange stripe.
Table 3-1. Required Tools
Description
open-end wrench
3
mm hex
(Allen) wrench
4 mm hex (Allen) wrench
No. 6 hex (Allen) wrench
7 mm nut driver
nut driver
nut driver
nut driver (drilled out, end covered
with heatshrink tubing)
Small No.1 pozidrive screwdriver
Large No.2 pozidrive screwdriver
T-6 TORX screwdriver
T-8 TORX screwdriver
T-10 TORX screwdriver
Long-nose pliers
Wire cutters
HP Part Number
8720-0015
8710-1366
8710-1164
5020-0289
8710-1217
8720-0005
8720-0006
8720-0008
8710-0899
8710-0900
8710-1618
8710-1614
8710-1623
8710-0030
8710-0012
3-2 Assembly Replacement