Controller Error - Ricoh G092 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 diagnostic test, if an error occurs.
Important: Always try turning the main switch off waiting several seconds and then
on and check if the problem persists.
SC Symptom
640 Controller to engine communication error.
Checksum error detected
between the controller and
the engine board.
641 Controller to engine communication error.
The controller receives no
response from the engine
board.
670 Engine start-up error
The ready signal from the
engine board is not
detected.
818 System timeout error
System program timeout
error detected.
819 Kernel stop error
Unexpected CPU error by
the ASIC/ RAM full
detected.
820 Self-diagnostic error – CPU
CPU error detected during
self-diagnostic.
821 Self-diagnostic error - ASIC/CPU
ASIC and CPU timer error
detected during self-
diagnostic.
822 Self-diagnostic error – HDD
HDD timeout error detected
during self-diagnostic.
823 Self-diagnostic error – NIB
NIB error detected during
self-diagnostic.
G081/G092
Possible Cause/Required Action
• Defective controller
• Defective engine board
1. Check the connection between the controller and
the engine board.
2. Replace the engine board if the error is frequent.
3. Replace the controller board if the error is frequent.
• Defective controller
• Defective engine board
1. Check the connection between the controller and
the engine board.
2. Replace the engine board if the error is frequent.
3. Replace the controller board if the error is frequent.
• Defective engine board.
Replace the engine board.
• Defective controller
Replace the controller if it occurs frequently.
• Defective controller
Replace the controller if it occurs frequently.
• Defective controller
Replace the controller if the error is frequent.
• Defective controller
Replace the controller if the error is frequent.
• Poor HDD connection
• Defective HDD
1. Check the HDD connection.
2. Replace the HDD.
• Defective controller
Replace the controller.
4-6 SM