View source for Repairing 7000-series plug-in sockets

[[File:Extender_3.jpg|thumb|250px|right|Defective connector in a [[067-0589-00]] extender - connector covers are removed, one contact finger is bent (click to enlarge)]]
A common problem with 7000-series scopes, especially the early models, are the '''sockets in the mainframe that accept the plug-ins'''. 

The fingers of the connector are springy metal. The fingers are supported by a flat piece of plastic on either side of connector. 
This piece of plastic tends to become brittle and crack, causing loss of pressure on the connector fingers and resulting in bad electrical connections.
The symptoms are erratic failures that sometimes come and go when the plug-in is pushed or pulled slightly.

Occasionally, individual contact fingers can be damaged as well.

Repair strategies include adding mechanical support to the covers, or transplanting modern connectors.