6

POWER

 

Utility

Utility Menu:

Recall

Hold at power up

 

Chapter 6 Backdating

Backdating Firmware

Backdating Firmware

CHANGE 1 (Firmware Revisions 3317, 3335, 3402, 3427)

(Note: firmware revision 3413 added the new security menu item and the new Calibration Menu to the HP 53131A Counter.)

(Note: firmware revision 3427 was set up to work with the new FPGA [Xilinx 3042A]; and shortens TI delay from 1 ms to 100ms. This revision is backward compatible.

Page 2-6thru Page 2-15 (“About the HP 53131A/132A Calibration Menu,” and “The HP 53131A/132A Calibration Procedures” sections).

Replace with the following calibration information and procedures:

About the HP 53131A Calibration Menu

The Utility menu is accessed by holding the Recall key and cycling POWER key.

The Utility menu’s calibration items, illustrated on the following page, provide you with the functions to:

initiate the Counter’s calibration routines, which can perform automatic calibration of the voltage offset and gain of the front-end input amplifiers, and optional timebase

(CAL: OFFS 1 / 2 ?, GAIN 1 / 2 ?, TIMEBAS ?, and TI 12?).

6-8

Assembly-Level Service Guide