Specifications

SAM4s ER-285M Operator's and Program Manual v1.4 Service Mode Reference Guide • 107
Service Mode Reference Guide
Overview
Use the Service Mode (S Mode) to perform secure operations. The S position is one position
clock-wise from the PGM position. The S position is not labeled. The key labeled “C”
accesses this position.
The following procedures are done from the Service Mode.
• Clear All Totals
• Clear Grand Total
• Clear PLU file
• EPROM Information
• Memory Allocation
• Assignment of Functions to Keyboard Locations
• RS232C Port Options
CAUTION: The procedures described in this area are security sensitive. Do not share
this information with unauthorized users and distribute the special SERVICE-Mode
key only to those you may want to perform these functions.