Toshiba e-STUDIO6520c - Page 472

e-STUDIO5520C/6520C/6530C © 2008-2011 TOSHIBA TEC CORPORATION All rights reserved
ERROR CODE and TROUBLESHOOTING
6 - 90
[C9E0] Connection error between the SLG board and the SYS board
(1) Check if the connector CN12 on the SLG board is completely inserted or not disconnected.
(2) Check if the connector CN421 on the IMG board is completely inserted or not disconnected.
(3) Check if the connector pin between the SLG board (connector CN12) and the IMG board
(connector CN421) is disconnected, or the harness connecting these boards is short circuited or
open circuited.
(4) Check if the connector CN422 on the IMG board and the connector CN135 on the SYS board are
completely inserted.
(5) Check if the connector pin between the IMG board (connector CN422) and the SYS board
(connector CN135) is disconnected.
(6) Check if the conductor patterns on the SLG board, IMG board and SYS board are short circuited
or open circuited.
(7) Replace the SLG board if no problem is found in steps from (1) to (6) above.
(8) If the problem is not corrected with the replacement of the SLG board, reinstall the removed SLG
board and replace the IMG board.
(9) If the problem is still not corrected with the replacement of the IMG board, reinstall the removed
IMG board and replace the SYS board.
[F090] SRAM abnormality on the SYS board
(1) Turn the power OFF and start up the Setting Mode (08).
(2) When “SRAM ERROR DOES IT INITIALIZE” is displayed on the LCD, check the destination and
then press the [START] button. If the destination is not correct, key in the correct one and then
press the [START] button.
(3) After the confirmation message is displayed on the LCD, press the [INTERRUPT] button (to
initialize the SRAM).
(4) Perform the panel calibration (08-692).
(5) Enter the serial number (08-995). Be sure that the serial number is the same as that on the
identification label attached on the rear cover of the equipment.
(6) Initialize the NIC information (08-693).
(7) Turn the power OFF and then start up with the Adjustment mode (05).
(8) Perform “Data transfer of characteristic value of scanner” (05-364).
(9) Perform “Automatic gamma adjustment” <PRC> (05-1642) (using [4] [FAX] test pattern).
(10) Perform “Automatic gamma adjustment” <PRT (600dpi)> (05-1008) (using [70] [FAX] test
pattern).
(11) Perform “Automatic gamma adjustment” <PRT (1200dpi)> (05-1009) (using [230] [FAX] test
pattern).
(12) Turn the power OFF and then back ON. If the error is not recovered, replace the SRAM on the
SYS board.
[F350] SLG board abnormality
(1) Check if the conductor pattern on the SLG board is short circuited or open circuited.
(2) If there is no problem found in the check (1) above, check the combination of the firmware
version of the system ROM, engine ROM and scanner ROM. Reinstall the scanner ROM
firmware.
(3) If an error occurs after step (2) above has been performed, replace the SLG board.
[F400] SYS board cooling fan abnormality
(1) Check if the fan is rotating properly.
(2) If not, check if any foreign object is adhered.
(3) Is the connector CN126 of the SYS board connected securely?
(4) Replace the SYS board cooling fan.
(5) Replace the SYS board.