JUKI LK-1900AN Engineer's Manual page 106

Display Name of error
X origin retrieval error X origin sensor does not change.
Y origin retrieval error Y origin sensor does not change.
Work clamp foot origin
retrieval error
Needle thread clamp
origin retrieval error
Feed trouble error
Communication error
between panel and
MAIN
Communication error
between MAIN and
SDC
MAIN circuit board
overheat
MAIN memory write-in
trouble
INT memory write-in
trouble
(No display) Abnormal power
source
Disconnection of con-
nector
Description of error
Work clamp foot origin sensor does not
change.
Needle thread clamp origin sensor does not
change.
Timing lag between feed and main shaft has
occurred.
Communication between the panel and MAIN
cannot be performed.
Communication between the MAIN and SDC
cannot be performed.
Overheat of MAIN circuit board
Memory write-in of MAIN circuit board cannot
be performed.
Memory write-in of the head circuit board can-
not be performed.
Power source voltage type is different.
The connector is disconnected.
Corrective measure
Turn OFF the power switch and check whether CN62
of INT circuit board or CN42 of MAIN circuit board is
disconnected or loose.
Turn OFF the power switch and check whether CN63
of INT circuit board or CN43 of MAIN circuit board is
disconnected or loose.
Turn OFF the power switch and check whether CN64
of INT circuit board or CN44 of MAIN circuit board is
disconnected or loose.
Turn OFF the power switch and check whether CN65
of INT circuit board or CN45 of MAIN circuit board is
disconnected or loose.
Turn OFF the power switch and check whether cou-
pling of the main motor is loose.
Turn OFF the power switch and check whether CN34
of MAIN circuit board is loose.
Turn OFF the power switch and check whether CN32
of MAIN circuit board or CN15 of SDC circuit board is
disconnected or loose.
Turn OFF the power switch and turn ON the power
switch again after some time.
Turn OFF the power switch and check the insertion of
ROM of U22 of MAIN circuit board.
Turn OFF the power switch and check whether CN38
of MAIN circuit board is disconnected or loose.
Turn OFF the power switch and check the power
source voltage and check whether CN3 of FLT circuit
board or CN13 of SDC circuit board is disconnected or
loose.
Remarks