Brother International MD-817 Service Manual - Page 38

Error, Indication

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Error Indication List Indication Error content The power LED blinks at a cycle of approx. 0.25 second. The buzzer sounds at a cycle of approx. 0.25 second. Machine motor lock. Higher voltage than usual is applied to the power. Needle up signal or needle down signal is not detected for three seconds while the machine is running. The power LED blinks at a cycle of approx. 0.1 second. The power voltage drops when the machine is stopped during sewing with DIPB 3 set to ON. The stitch number display blinks on the panel. Can not write to memory (EEPROM). Can not store. "0" blinks on part A of the stitch number display. For panel Keys other than half stitch key on the operation panel are El 00 or N 100, "1" also blinks on the pattern display. not normal. (Short-circuited.)" "0" blinks on part B of the stitch number display. For panel The half stitch key on the operation panel is not normal.*2 El 00 or N 100, "1" also blinks on the pattern display* 3 The buzzer sounds at a cycle of approx. 0.5 second. When the power first is turned on, or backup data is wiped. *1: For the NBN specification, keys other than the half stitch key and the mode key are not normal. *2: When all memory is cleared using the half stitch key, the display shows the same indication. For the NBN specification, when only mode data is initialized using the mode key, the display shows the same indication. *3: For the NBN specification, when the mode key is not normal, "32" appears below A and B on the stitch number display, and the LED on the mode key blinks. Memory all clear operation: To clear all backup data from the memory, turn on the power while pressing the half stitch key. Mode data initialization: To set the mode data (which contains the stitch number at a slow start and the thread release tim- ing) to the default, turn on the power while pressing the mode key. - 34 -

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Error
Indication
List
Indication
Error
content
The
power
LED
blinks
at
a
cycle
of
approx.
0.25
second.
The
buzzer
sounds
at
a
cycle
of
approx.
0.25
second.
Machine
motor
lock.
Higher
voltage
than
usual
is
applied
to
the
power.
Needle
up
signal
or
needle
down
signal
is
not
detected
for
three
seconds
while
the
machine
is
running.
The
power
LED
blinks
at
a
cycle
of
approx.
0.1
second.
The
power
voltage
drops
when
the
machine
is
stopped
dur-
ing
sewing
with
DIPB
3
set
to
ON.
The
stitch
number
display
blinks
on
the
panel.
Can
not
write
to
memory
(EEPROM).
Can
not
store.
"0"
blinks
on
part
A
of
the
stitch
number
display.
For
panel
El
00
or
N
100,
"1"
also
blinks
on
the
pattern
display.
Keys
other
than
half
stitch
key
on
the
operation
panel
are
not
normal.
(Short-circuited.)"
"0"
blinks
on
part
B
of
the
stitch
number
display.
For
panel
El
00
or
N
100,
"1"
also
blinks
on
the
pattern
display
*
3
The
half
stitch
key
on
the
operation
panel
is
not
normal.*
2
The
buzzer
sounds
at
a
cycle
of
approx.
0.5
second.
When
the
power
first
is
turned
on,
or
backup
data
is
wiped.
*
1
:
For
the
NBN
specification,
keys
other
than
the
half
stitch
key
and
the
mode
key
are
not
normal.
*2
:
When
all
memory
is
cleared
using
the
half
stitch
key,
the
display
shows
the
same
indication.
For
the
NBN
specification,
when
only
mode
data
is
initialized
using
the
mode
key,
the
display
shows
the
same
indication.
*3
:
For
the
NBN
specification,
when
the
mode
key
is
not
normal,
"32"
appears
below
A
and
B
on
the
stitch
number
display,
and
the
LED
on
the
mode
key
blinks.
Memory
all
clear
operation:
To
clear
all
backup
data
from
the
memory,
turn
on
the
power
while
pressing
the
half
stitch
key.
Mode
data
initialization:
To
set
the
mode
data
(which
contains
the
stitch
number
at
a
slow
start
and
the
thread
release
tim-
ing)
to
the
default,
turn
on
the
power
while
pressing
the
mode
key.
-
34
-