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.

nTo remove the analyzer’s cover assembly, refer to Procedure 1.

nTo access the A2, A3, A4, and A5 assemblies, refer to Procedure 5.

nTo 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

HP Part Number

5/16-inch open-end wrench

8720-0015

3 mm hex (Allen) wrench

8710-1366

4 mm hex (Allen) wrench

8710-1164

No. 6 hex (Allen) wrench

5020-0289

7 mm nut driver

 

8710-1217

3/8-inch nut driver

 

8720-0005

7/16-inch nut driver

 

8720-0006

g/16-inch nut driver (drilled out, end covered

8720-0008

with

heatshrink tubing)

 

Small

No.1

pozidrive

screwdriver

8710-0899

Large

No.2

pozidrive

screwdriver

8710-0900

T-6 TORX screwdriver

8710-1618

T-8 TORX screwdriver

8710-1614

T-10 TORX screwdriver

8710-1623

Long-nose

pliers

 

8710-0030

Wire

cutters

 

8710-0012

 

 

 

 

 

 

 

 

 

 

3-2 Assembly Replacement