Chapter 2  Service
The HP 53131A/132A Calibration Procedures
Assembly-Level Service Guide 2-17
2
6Press Enter key.
The Counter momentarily displays 
CALIBRATING
, and then it should 
display 
OFFS 1 PASS
.
If the fail message is displayed, refer to the troubleshooting section in this 
chapter.
7 To calibrate Channel 2, press any one of the arrow keys until 
CAL: OFFS 2 ?
 is displayed.
8Press Enter key.
A scrolling message on the display will ask you to remove any signals 
connected to Channel 2. Follow the instruction.
9Press Enter key.
The Counter momentarily displays 
CALIBRATING
, and then it should 
display 
OFFS 2 PASS
.
If the fail message is displayed, refer to the troubleshooting section in this 
chapter.
This completes the Offset Calibration procedure. Proceed to the next 
procedure to calibrate the gain.