Toshiba e-STUDIO 2555C Service Manual page 699

Procedure Check item
1 LED head, harness
2 Check firmware version
3 Board check
Parts to be replaced
LGC board
© 2012-2013 TOSHIBA TEC CORPORATION All rights reserved
Measures
1-1. Disconnect all the harnesses (flat cable and power
supply) of the LED heads, and then turn the power ON.
Check if the error changes to another service call (CE80
etc.). (CN380 to CN387)
1-2. If the error does not change to another service call
such as CE80 in step 1-1, go to step 2. If the error
changes to another service call, follow the steps below.
1-3. Connect the harnesses of the LED head to the LGC
board single color at a time, and then turn the power ON
to identify the LED head in error. Check if F071 occurs.
Place the parts causing the error.
Check the connectors and harnesses of the color in error.
<Harness (flat cable) - LGC board>
Y color: CN382
M color: CN380
C color: CN386
K color: CN384
<Harness (power supply) - LGC board>
Y color: CN383
M color: CN381
C color: CN387
K color: CN385
<Harness (flat calbe) - LED head>
Y color: CN592
M color: CN593
C color: CN594
K color: CN595
<Harness (power supply) - LED head>
Y color: CN596
M color: CN597
C color: CN598
K color: CN599
• Check the version of the system firmware on the SYS
board.
• Check the version of the engine firmware on the LGC
board.
• Check if the connector CN128 on the SYS board and
the connector CN350 on the LGC board are
completely inserted.
• Check if the connector pin between the SYS board
(connector CN128) and the LGC board (connector
CN350) is disconnected.
• Check if the connectors CN380, CN381, CN382,
CN383, CN384, CN385, CN386 and CN387 of the
LED head are completely inserted, and the harness is
disconnected or open circuited.
• Check if the conductor patterns on the LGC board and
SYS board are short circuited or open circuited
Remark
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e-STUDIO2555C/3055C/3555C/4555C/5055C
ERROR CODE AND TROUBLESHOOTING
8