Brother DCP-8070D Service Manual page 573

■ NCU PCB circuit diagram : Europe/Asia/Oceania/China
L10
L4
R41-4910-C
NC
S
1
Ta
2
La
3
Lb
4
Tb
5 L5
JW6
NC
E
6
NC
FG
FG
7
NC
FG
8
J2
@PH1
A
C
E
K
TLP627 JW7
GND
L1
MJ-62J-RD315
L3
XX
3
XX
4
NC
FG
7
NC
FG
8
J1
+5V
C
@Q2
B
C5395
E
+
285D-D440J-111
@C5
@R10
@L6 C10
XX
150
1
XX
2
@L7
GND
XX
3
GND
(H.S)
XX
4 @L9
@L8
NC
FG
5
NC
FG
6
@J3
These components are mounted for with HANDSET Models only.
+24V
@SW1
11 12
2
7
1
D1
CML
6C
1SS120
@CR1
1 12
5
4
3
NC
NC 8 100 1/4W
9
NC
10
@R1
@D4 1SS120 JW13
@CR2
1 12 JW2
JW5
5
JW4
4
3
NC
8
NC
9
NC
10
@SW2
11 12
2
7
1
0
@R2
@Q4
C
RDPS
B
6C
E
DTC123EK
GND
@C2
C474
250V
C26
PH2
C105
JW8
AK2 AK1
ZD1
MTZJ12
TELOFF
E C
6C
TLP320
GND
+5V
JW16
@R29
TELRL
100
6C
@D8 1SS120
@C6
16V @D7 1SS120
C100
C102
@C12
@R28
GND
2.7k
@C15
@R19 @R15 120k
C104
12k
U1
BA10358
C16
- JW17
TP1 C101 6
7
+
@C20 5
@R20
C104
TP2
12k @R12
@R24
680
2.7k
@R21
@C17
120k
C102
GND
GND
REF
@C29
C153
@C28
C153
@L2
C3
@T1
JW
BT-6
JW14 JW15
C2.2
NC
50V
GND
A2
DB2 +5V
S1ZB60
-
+
A1
D5
PH6 A
ERA15-04
C
E
K
TLP421 Q3
Q1
C
JW10 C
CHRG
B
B 6C
E
KTD1411 E
DTC123EK
GND
A @PH5
C
ADLC
6C
TLP421
E
K
GND
R6
@R33
A PH3
0 C
39k 1W
CI
6C
TLP421
E
K
GND
ZD2
MTZJ12
@PH4
AK1 JW11
C
POL
6D
E
AK2 TLP620
GND
JW12
JW19
JW18
JW20
TELSL
6C
JW21
JW23
+5V +5V
GND GND
JW22
REF REF
Fig. 8-5
8-5
@C22
C563
C9
@C7
16V C10
+ +
SL
@R18 1.5k 6C
C1
@C19
0
C11 C561
@C14
@R17 C822
TP4 @R13 68k
3.9k
+5V
8
R14 100k
- U1
2
BA10358
C13 1
+
3 C10
C101
R11
C104
TP3
4 2k
R16 100k
@R23
0
GND
GND
TP5
C18
@R22
@R26
68k C561
@C23
3.9k
C103 GND
REF
REF
CN1
+5V 16 TELRL
TELRL
2C
15 TELSL
TELSL
3D
R27 14 +24V
+24V
1k
13 CML
CML
2A
REF 12 CI
CI
4C
C21
C8 11 GND
R25 GND
6.3V C104
820
10 TELOFF
C470
TELOFF
3C
9 +5V
+5V
8 SL
SL
GND
6B
7 RL1
RL1
6B
6 PLS
PLS
1B
5 POL
4 RDPS
RDPS
2B
3 CHRG
CHRG
4B
2 ADLC
ADLC
4C
1 POL
POL
4C
B16B-PH-K-S(LF)
RL1
6C
HANDSET
WITH
NONE
Confidential