Self-Diagnosis - Details - Digital Electronics Pro-face GP-377 Series User Manual

Chapter 6 - GP RUN Mode and Errors
6.3.2

SELF-DIAGNOSIS - Details

This section explains the contents of SELF-DIAGNOSIS. For information on
how to operate the Screen, Chapter 4, "OFFLINE Mode"; for
information about how to set up the Special Tools, Chapter 3,
"Installation and Wiring".
DISPLAY PATTERN
Used when the buzzer will not sound and when the device contents will not
display correctly to check the drawing function. It does this by running checks on
the various screen pattern displays (8 screens), the ON/OFF Display, and
KANJIROM CHECKSUM. When the ON/OFF Display is checked, the Buzzer
ON/OFF check is run simultaneously. If KANJIROM CHECKSUM is normal,
OK displays; if there is a problem, NG displays.
TOUCH PANEL
Touch Panel check. Checks if each touch cell highlights when pressed.
INPUT PORT
Used only for Digital's maintenance.
INTERNAL FEPROM CHECKSUM (System & Protocol)
The Internal FEPROM System and Protocol check searches for any problems
*1
that may arise during operations. When running the check, the screen will change
as follows.
When the FEPROM is normal, OK displays; if there is a problem, the screen stops
in the middle of operation. This check does not erase the System or Protocol.
FRAME BUFFER
The Frame Buffer (display memory) Check looks for any display problems that
may develop. When everything is normal, OK displays; when there is a problem,
an error message displays.
*1 Also known as "FEEPROM" (Flash Electronic Erasable Programmable Read Only
Memory).
GP-377 Series Users Manual 6-11