HP 53131A Service Manual

Chapter 2 Service
The HP 53131A/132A Calibration Procedures
2-16 Assembly-Level Service Guide
2
3 Press the appropriate arrow keys to enter the security code
“
53131 ”, for example, if 53131 is the security code by performing
the following steps:
a. Press
g
key four times.
The Counter should display
CODE: 00000 .
b. Press
d
key five times.
The Counter should display
CODE: 50000 .
c. Press
g
key once, and then press
d
key three times.
The Counter should display
CODE: 53000 .
d. Press
g
key once, and then press
d
key once.
The Counter should display
CODE: 53100 .
e. Press
g
key once, and then press
d
key three times.
The Counter should display
CODE: 53130 .
f. Press
g
key once, and then press
d
key once.
The Counter should display
CODE: 53131 .
g. Finally, press Enter key.
CAL UNSECURE is displayed.
NOTE If “53131” is NOT the correct security code, the Counter will display
BAD CODE .
4Press Scale & Offset key until
CAL: OFFS 1 ? is displayed.
5Press Enter key.
A scrolling message on the display will ask you to remove any signals
connected to Channel 1. Follow the instruction.

HP 53131A Specifications

General

Brand	HP
Model	53131A
Category	Cash Counter
Language	English