March 2005 © TOSHIBA TEC e-STUDIO520/600/720/850 TROUBLESHOOTING
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[F070] Communication error between System-CPU and Engine-CPU
[F110] Communication error between System-CPU and Scanner-CPU
[F111] Scanner response abnormality
(1) Check if the connector CN102, CN103 on the SYS board is disconnected.
(2) Check if the connector CN10 on the SLG board is disconnected.
(3) Check if the harness connecting the SYS board and SLG board is disconnected or open cir-
cuited.
(4) Check if the harness connecting the SYS board and LGC board is disconnected or open cir-
cuited.
(5) Check the version of the system ROM on the SYS board.
(6) Check the version of the engine ROM version on the LGC board.
(7) Check the version of the scanner ROM version on the SLG board.
(8) Replace the SYS board.
(9) Replace the SLG board.
(10) Replace the LGC board.
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