Brother HL-1260 - Manual (Page 42)

III - 10
Figure 3.7 Paper Feed/Size-SW PCB Circuit
B48K139-1
P5(ENGINE)
A B C D
FE-MT FE-MT FE-MT FE-MT CA SOL MP SOL
PF-PE
7 9 6 8 20 19 3 ±0
V
±0
V
±0
V
±0
V
±0
V
MP-PE
REGIST
PREREG
DUPE
PH2 PH5 PH1 PH4 PH3
14 5 13 2
±0
V
±0
V
±0
V
±0
V
±0
V
+5V
470
R2
E-1 +5V E-2 +5V E-3 +5V E-4 +5V E-5
470 470 470 470
R14 R1 R13 R9
P2(SIZE)
PSIZE1 PSIZE2 PSIZE3 PSIZE4
±0
V
0
V
2 4 3 1 5
17 15 16 18
SIZE1 SIZE2 SIZE3 SIZE4 HOLD +24VB
+24VRET
+5V
0V
HLD (* -05D)
+24VB +24VRET +5V ±0
V
R16 4.7K
+24VRET
±0
V
R15 4.7K
0V
Q3 2SC5060
+24V
+24V CA-SOL
P3 (CA SOL)
1 2
+24VRET
Q2 2SC5060
+24V
+24V MP-SOL
P4 (MP SOL)
1 2
(* -02D) HLD
Q1 DTC114ES
±0
V
R12 82
R11 27
R10 1K
+5V
+24VRET
+24VRET
+24VRET
R5 1-1W
R6 1-1W
R4 2.2K
R7 2.2K
C4 222
C5 222
C6 471
C3 471
R8 47K
R3 47K
+5V
0V
C2 103
C1 100µ
-35V
+24VB
+24VB
+
+24VB +24VB
4 3
MT D
6
MT C
1
MT B
2
MT A
5
P1(FEED MOTOR)
#1 SLA7027M
B48K140-1
P1(SIZE)
PSIZE1 PSIZE2 PSIZE3 PSIZE4
0V
4 3 2 1 5
SW1 SW2 SW3 SW4
±0
V
INA INB INAN INBN TDA TDB
OUTA OUTB
OUTAN OUTBN
VSSA VSSB
RSA RSB
GNDA GNDB REFA REFB
6
17
5
16
2
13
9
10
8
18
1
11
7
12
3
14
4
15
F
D
C
B
F
A
11
4
10 12
1