HP 3457A Service Manual page 39

Figure 2-7. Rear Terminal Assembly Removal
Use clean handling and anti-static techniques when removing, configuring, and install-
ing a Plug-In Assembly. The circuit boards must be kept clean to ensure compliance
with impedance specifications. The Plug-In Assemblies as well as the HP 3457A
mainframe contain CMOS devices that are susceptible to damage from static
electricity.
2-28. Rear Terminal Assembly Removal
2-29, The Rear Terminal Assembly must be removed before an Optional Plug-In Assembly can be installed.
Remove the Rear Terminal Assembly as follows:
a. Remove the power cord and all external input connections from the HP 3457A.
b. Remove the two screws attaching the Terminal Assembly to the rear panel.
2-7