Brother DCP-8085DN Service Manual page 432

■ NCU PCB circuit diagram
1
A
L3
R41-4910-A
D4
RA-351M-V6-2
XX
3
L2
XX
4
(LINE)
FG
7
NC
FG
8
D5
J2
RA-242M-C6
D6
RA-242M-C6
J1
B FG
8
FG NC
7
FG NC
(EXT)
4
XX
3
XX
L1
R41-4910-A
TELOFF
6B
+5V
C
C
@C6
E
C10
+
GND
285D-D440J-111
@L5
XX
1
XX
2
@L4
GND
XX
3
@L7
(H.S)
XX
4
@L6
GND
5
GND NC
6
@J3
D
1
2 3
+24V
D7
1SS120
CML
6B
SW1
11 12
R7 100 2W
2
7
1
@T1
A5X-24E-908
JW1 BT-17
PLS
6C
A
C
R2
C1
24k
E
K
@PH1
C474
PS2533-1
250V
GND
PH2
GND
TLP320
These components are mounted for SF Models only.
@Q1
TELRL
B
6B
C5395
+5V
@R9
150
@R20
100
C104
@C10
C471
C104
@C13
@R24 10V
2.7k C470
@R15 150k
@C17
@R22
C104
GND
24k
U1
BA10358
@C12
C101 6 -
7
+
5
@R21
@C15
24k
C104 @R13
@R19
3.3k
2.7k
@R17 @C14
C103 150k
C471
GND
C104
GND
REF
2 3
4
C4
C103
C5
C10
@C3 50V C2.2
35V
+ +
@R8 510
NC
R10
2.7k
C7
C104
R11
GND
4.3k
C101
C104
R12 100k
PH3
R3 TLP421
24k
R16 100k
CI
A
C 6B
R27
C19
4.7k
D3
E C222
1SS120
K
R28
GND
100k
REF
L8
FG GND
JW4
JW3
GND GND
JW2
TELSL
6B
4
Fig. 8-4
8-4
5 6 6 6 6 6 6 6
SL
6B
@C9 C221
R14 100k
+5V
C102
8
C104
- U1
2
RL1
BA10358
1
+ 6B
3
C8
R23
C104
4 3.3k
P1
11 TELRL FB
TELRL
2C
US
GND 10 TELSL
TELSL
GND
3D
9 +24V
+24V
8 CML
CML
@C18
2A
C221
7 CI
CI
4B
6 GND
GND
5 TELOFF
TELOFF
2C
4 +5V
+5V
REF
3 SL
SL
5A
2 RL1
RL1
5B
1 PLS
PLS
2B
B11B-PH-K-S
+5V
R18
620
REF
R25 C16
6.3V
620
C470
GND
5 6 6 6 6 6 6 6
A
SF SF
B
US CAN
FB
CAN
C
D
Confidential