Controller Error - Gestetner G056 Service Manual

CONTROLLER ERROR

4.2 CONTROLLER ERROR
The following table describes the controller error codes. These codes are displayed
at power-on, or after the power-on self-test, if an error occurs.
Please refer to section 5.3 for details of the power-on self-test.
Code
640 Engine to controller communication
error.
641 Engine to controller communication
error (no answer).
800 Video data error
820 Controller CPU error
821 CPU and ASIC timer error
822 HDD timeout error
823 NIB self test error
824 NVRAM error
827 SDRAM error
828 Flash ROM error
829 Optional RAM error
835 Parallel interface error
836 Font ROM error
837 Optional font ROM error
838 Clock generator error
850 NIB interface error
851 IEEE1394 interface error
G056/G058
Description Required Action
• Check the connection between the
controller and the engine board.
• Replace the engine board if the error is
consistent.
• Replace the controller if the error is
consistent.
• Check the connection between the
controller and the engine board.
• Replace the engine board if the error is
consistent.
• Check the connection between the
controller and the engine board.
• Replace the engine board if the error is
consistent.
• Replace the controller if the error is
consistent.
• Turn off the machine and turn it back on.
• Replace the controller if the error is
consistent.
• Check the connection between the HDD
and the controller
• Replace the HDD if the error is consistent.
• Turn off the machine and turn it back on.
• Check the connection between the NIB
and the controller.
• Replace the NIB if the error is frequent.
• Replace the NVRAM if the error is
consistent.
• Replace the controller if the error is
consistent.
• Replace the controller if the error is
consistent.
• Check the connection of the optional
memory.
• Replace the optional memory if the error
is consistent.
• Replace the controller if the error is
consistent.
• Not used for this model.
• Not used for this model.
• Replace the controller if the error is
consistent.
• Replace the controller if the error is
consistent.
• Replace the controller if the error is
consistent.
4-4 SM