JUKI LK-1900AN Engineer's Manual page 128

Trouble
23. Error E915
Panel — MAIN communication error
24. Error E916
MAIN — SDC communication error
LED3 on SDC board: Flashing 15 times
25. Error E943
MAIN board EEPROM writing error
26. Error E946
INT board EEPROM writing error
Cause (1)
23-1) Communication error 1-A) MAIN board setting is inad-
between the Panel
and MAIN boards
1-B) The MAIN board or the op-
24-1) Communication error 1-A) The SDC — MAIN cord S
between the MAIN
and SDC boards
1-B) MAIN and SDC board setting
1-C) The MAIN and SDC board is
25-1) MAIN board EEPROM 1-A) MAIN board EEPROM is dis-
failing in writing
1-B) The MAIN board is out of
26-1) INT board EEPROM 1-A) MAIN board connector CN38
failing in writing
1-B) The MAIN and INT board is
Cause (2)
equate.
eration panel is out of order.
ASM. connector is discon-
nected.
is inadequate.
out of order.
connected.
order.
is disconnected.
out of order.
Check and corrective measures
All the dipswitches on the MAIN board must
be OFF.
Try to replace the operation panel or the
MAIN board.
Check the connections in the SDC — MAIN
cord S ASM. and check if any disconnection
is present.
CN15 of the SDC board and CN32 of the
MAIN board.
All the dipswitches on the MAIN and SDC
boards must be OFF.
Try to replace the MAIN or SDC board.
Check whether EEPROM is correctly mount-
ed.
Replace the MAIN board.
Check CN38 of the MAIN board to see
whether it is disconnected or broken.
Replace the MAIN or INT board.