Brother International MD-817 Service Manual - Page 62

connector.

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D printed-circuit board (Don't touch PCB while LED is illuminated.) D printed-circuit board 1-110V assembly 1-240 V assembly 0 D printed-circuit board check D printed-circuit board 3-240V assembly 3-415V assembly D printed-circuit board check 0 Check 0 OTI D PCB 3 D-PCB 1-240V -C R2 I (9'4r.r) e Co O RE Ca ce O og O "- 4- C9 v re 051-0 e e CRC R0O - Cry et) LI) LEO BO O (61): CI O B O cl3=Icy__F R0 26 26 2-O12"--4. 6 CN1 FR JP] R8 RG Check 0 1 Check 0 Check 0 D printed-circuit board check 0 BD S and each e, 8 and each e both direc- tions: must be 052. D printed-circuit board check €1 Is solder of connector lead wiring OK? 0 D printed-circuit board check Between orange wires: must be 0-5Q Transformer primary voltage: OK #3-8 D printed-circuit board check 0 BD S and each e, 8 and each 6 both direc- tions: must be 0Q. D printed-circuit board check 0 Is solder of connector lead wiring OK? D printed-circuit board check Between orange wires: must be 0-5Q CN8 voltage: OK #4 O Nylon band BPD600 printed-circuit board CN8 Transformer connector O O O Orange wire Gray wire Orange wire OO Treadle unit installation O screws (three) Orange wire m AC15+3V Gray wire AC30±6V (1) Remove the three treadle unit installation screws. (2) Disconnect the transformer connector from the nylon band. (3) Check the AC voltage of the transformer connector. Orange wire AC15±3V - 58 -

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D
printed
-circuit
board
(Don't
touch
PCB
while
LED
is
illuminated.)
D
printed
-circuit
board
1-110V
assembly
1-240
V
assembly
D
printed
-circuit
board
check
0
B
Co
D
-PCB
1
-240V
-C
I
(9'4r.r)
R8
e
O
R0O
—
R2
RE
Ca
ce
O
og
O
"-
BO
(61):
R0
6
RG
FR
O
CN1
Cry
Check
0
1
Check
0
D
printed
-circuit
board
check
0
BD
S
and
each
e,
8
and
each
e
both
direc-
tions:
must
be
052.
D
printed
-circuit
board
check
€1
Is
solder
of
connector
lead
wiring
OK?
D
printed
-circuit
board
check
0
Between
orange
wires:
must
be
0-5Q
Transformer
primary
voltage:
OK
#3-8
Nylon
band
Transformer
connector
O
O
O
O
O
OO
(1)
Remove
the
three
treadle
unit
installation
screws.
(2)
Disconnect
the
transformer
connector
from
the
nylon
band.
(3)
Check
the
AC
voltage
of
the
transformer
connector.
O
D
printed
-circuit
board
3-240V
assembly
3-415V
assembly
D
printed
-circuit
board
check
0
Check
0
OTI
D
PCB
3
4-
C9
CI
26
26
JP]
e
t)
LEO
r
e
e
v
051-0
e
CRC
cl
3
=Icy__
F
2—
O12"
--
4.
LI)
O
Check
0
D
printed
-circuit
board
check
0
BD
S
and
each
e,
8
and
each
6
both
direc-
tions:
must
be
0Q.
D
printed
-circuit
board
check
0
Is
solder
of
connector
lead
wiring
OK?
D
printed
-circuit
board
check
Between
orange
wires:
must
be
0-5Q
CN8
voltage:
OK
#4
BPD600
printed
-circuit
board
CN8
Orange
wire
Treadle
unit
installation
screws
(three)
Orange
wire
Gray
wire
Orange
wire
Orange
wire
Gray
wire
AC15+3V
AC15±3V
m
AC30±6V
-
58
-