Toshiba E-STUDIO520, Service Manual, Page: 425 / 592

March 2005 © TOSHIBA TEC e-STUDIO520/600/720/850 TROUBLESHOOTING
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[F090] SRAM abnormality on SYS board
(1) Turn the power OFF and start up the Setting Mode (08).
(2) When the message “SRAM ERROR DOES IT INITIALIZE?” is displayed on the LCD, press [INI-
TIALIZE]. (SRAM is cleared.)
(3) Turn the power OFF and then back ON. If the error is not recovered, replace the SYS board.
[F091] FRAM abnormality on SYS board
(1) Turn the power OFF and start up the Setting Mode (08).
(2) When the message “FRAM ERROR DOES IT INITIALIZE?” is displayed on the LCD, press [INI-
TIALIZE]. (FRAM is initialized.)
Note: Note:
When the FRAM is initialized, the scanner and image processing related adjustments are
also initialized. Readjust them after the FRAM initialization.
(3) Turn the power OFF and then back ON. If the error is not recovered, replace the FRAM on the
SYS board.
[F092] SRAM and FRAM abnormality on the SYS board
(1) Turn the power OFF and start up the Setting Mode (08).
(2) When the message “FRAM/SRAM ERROR DOES IT INITIALIZE?” is displayed on the LCD,
press [INITIALIZE]. (SRAM is cleared and FRAM is initialized.)
Note: Note:
When the FRAM is initialized, the scanner and image processing related adjustments are
also initialized. Readjust them after the FRAM initialization.
(3) Turn the power OFF and then back ON. If the error is not recovered, replace the FRAM on the
SYS board.
[F100] HDD format error
(1) Check if the HDD is mounted.
(2) Check if the specified HDD is mounted.
(3) Check if the connector pins of the HDD are bent.
(4) Check if the power supply connector is disconnected.
(5) Check if the connector J111 on the SYS board is disconnected.
(6) Replace the harness.
(7) Initialize the HDD. (Key in “2” at 08-690.)
(8) Replace the HDD.
(9) Replace the SYS board.