HP 53132A Assembly And Service Manual page 189

4
5
6
7
NOTE
Chapter 4 Retrofitting Options
To Retrofit the Rear Terminals (Option 060)
Insert the connector-end of the W1, with the washers (H6) in place
on the connector, through the appropriate rear INPUTS opening.
Insert and tighten the BNC nuts (H3) to secure the coaxial cables
to the rear of the chassis.
Solder the lead-end of the cables to their appropriate ground and
input pads on A1 Motherboard Assembly (J16, J17)
For the HP 53131A/132A solder the rear chassis INPUTS 1 cable to J16
and INPUTS 2 to J17. (See Figure 4-3B.)
For the HP 53181A solder the rear chassis INPUTS 1 cable to J17.
(See Figure 4-3B.)
Re-install the cover by performing the cover removal procedure,
in Chapter 3 of this guide, in reverse.
This completes the Rear Terminals (Option 060) retrofit procedures.
When using the front terminals of Inputs 1 and 2, the rear terminals
should be terminated with a 50-ohm load (such as part number 1250-0207).
When using the rear terminals, these loads should be placed on the front
terminals, or the 50-ohm input button selected (but not both).
Assembly-Level Service Guide 4-17