CONTROLLER LED DISPLAY
1 October, 1999
7-12
7.3 CONTROLLER LED DISPLAY
7.3.1 LOCATION
The controller uses two LEDs to display error status even while the LCD message
is not active.
7.3.2 FATAL ERROR
If the controller detected a fatal error during the power-on self-test, it uses two
LEDs to notify the cause of the error.
If one of the following fatal errors happens, the LED status changes as shown
(read from the left of the diagram to the right).
Flash ROM Error
Turn off the machine and turn it back on. If the controller detects the same error,
download new firmware from a IC card (refer to section 4.6). If the problem still
remains, replace the controller.
L E D 1
L E D 2
G038T501.WMF
LED2
(Upper)
LED1
(Lower)
O N
O F F
G038T502.WMF