User`s manual

Chapter 6 - GP RUN and Errors
GP-477R/577R Series User's Manual 6-7
1 Checks the characters inside the internal Character ROM.
2 Checks all the figures and tiling patterns.
3 Checks each GP touch panel square.
4 Checks the internal hard disk contents (FEPROM).
5 Checks the System and Protocol of the GP Internal Memory (FEPROM).
6 Checks the internal display memory (Frame Buffer).
7 *Checks the Tool Connector control lines and send/receive lines.
8 Checks the Input Port. (for Digital's maintenance use only)
9 *Checks the AUX control line.
A *Checks the printer interface.
B *Checks the RS-232C and RS-422 send/receive lines.
• The SELF-DIAGNOSIS items marked with an asterisk (*) require special
tools. Please prepare the required tool (cable) required for each test.
Note:
6.3 SELF-DIAGNOSIS
The GP unit is equipped to check its own System and Interface for any
problems. Use it to help diagnose any problems.
1. GP SELF-DIAGNOSIS Item List