Agilent Technologies E1441A user service Unsecuring the Function Generator

Unsecuring the Function Generator

(Lost Security Code)

To unsecure the function generator without the correct security code, follow the steps below. A procedure to unsecure the function generator is given on page 174. Also see “Electrostatic Discharge (ESD) Precautions” in chapter 6 before beginning this procedure.

1.Turn off power to the VXI mainframe, disconnect all input connection, and remove the module from the mainframe.

2.Remove the instrument’s left cover (tall cover):

A.First loosen the nuts around each BNC connectors. This is to avoid damaging the cover-to-faceplate EMC gasket.

B.Remove the seven Torx screws holding the cover.

C.While gently pulling the right side of the faceplate away from the cover’s EMC gasket, lift that end of the cover. Once the gasket is clear of the faceplate, remove the cover from the instrument.

3.Install a VXIbus extender card into the mainframe and install the instrument into the extender.

4.Apply power to the mainframe.

5.Apply a short between the two exposed metal pads on JM101 (located near U106 and U205) Figure D-1.

Figure D-1. Unsecuring the Agilent E1441A (without security code)

6.While maintaining the short, enter any unsecure code. The function generator is now unsecured.

Appendix D Service Procedures 175