JUKI LK-1900B series Engineer's Manual

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Error
code
Indica-
tion
Description of error Corrective measure Remarks
E913
Needle thread clamp origin re-
trieval error
Needle thread clamp origin sensor
does not change.
Turn OFF the power switch
and check whether CN77 of
INT board or CN45 of MAIN
board is disconnected or
loose.
E914
Feed trouble error
Timing lag between feed and main
shaft has occurred.
Turn OFF the power switch
and check whether coupling
of the main motor is loose.
E915
Communication error between
PANEL and MAIN
Communication between the PANEL
and MAIN cannot be performed.
Turn OFF the power switch
and check whether CN34 of
MAIN board is loose.
E916
Communication error between
MAIN and SDC
Communication between MAIN and
SDC cannot be performed.
Turn OFF the power switch
and check whether CN32
of MAIN board or CN15 of
SDC board is disconnected
or loose.
E918
MAIN board overheat
Overheat of MAIN board
Turn OFF the power switch
and turn ON the power
switch again after some
time.
E926
X-motor displacement error
X-feed motor is out of position.
Turn OFF the power.
E927
Y-motor displacement error
Y-feed motor is out of position.
Turn OFF the power.
E929
Needle thread clamp motor dis-
placement error
Needle thread clamp motor is out of
position.
Turn OFF the power switch
and check whether CN45 of
MAIN circuit board is loose.
E931
X motor overload error
The load applied to the X feed motor
is excessive.
Turn OFF the power.
E932
Y motor overload error
The load applied to the Y feed motor
is excessive.
Turn OFF the power.
E934
Needle thread clamp motor over-
load error
The load applied to the needle
thread clamp motor is excessive.
Turn OFF the power.
E943
MAIN memory write-in trouble
Memory write-in of MAIN board can-
not be performed.
Turn OFF the power switch
and check the insertion of
ROM of U22 of MAIN board.
E946
INT memory write-in trouble
Memory write-in of the machine
head board cannot be performed.
Turn OFF the power switch
and check whether CN30 of
MAIN board is disconnected
or loose.
-
Power supply fault, connector
disconnection
The power supply voltage specica-
tion is not correct.
The connector is disconnected.
Turn OFF the power switch.
Check the power supply
voltage, and check wheth-
er CN3 of FLT board and
CN13 of SDC board is dis-
connected or loose.

JUKI LK-1900B series Specifications

General

Brand	JUKI
Model	LK-1900B series
Category	Sewing Machine
Language	English