Brother HL-5240 Service Manual page 323

APPENDIX
Appendix 1. Main PCB Circuit Diagram, HL-5240/5250DN/5270DN/5280DW (6/7)
1
REGURATOR, MOTOR DRIVER
A
+3.3V
EEE1AA101SP
10V
( 6.3)
SGND
B
TP5
+5.0V
SGND
C
+8.0V
SGND
D
E
F
1
2 3
1.5V(FOR ASIC) REGULATOR
D5
RB751V-40
CH1
Q6
1.5V
LD1117DT-R TP239
+1.5V
IN OUT
ADJ (TO Main ASIC Logic)
TP207
R146
C504
1k 1%(F)
EEE1AA101SP
C502
C110 C111
10V C100
C100
C104
C104 ( 6.3)
SGND
3.3V(Analog 3.3V) REGULATOR
D4 RB751V-40
TP341
TP2 U2 TP360
2 3
VDD VOUT A3.3V
(TO Main ASIC A/D )
C58
C104
4 1 C505
C57
CE GND
EEE1AA101SP
C104
10V C100
RQ5RW33B
( 6.3)
SGND
5.0V REGULATOR
D3 RB751V-40
Q5
+5.0V
IN OUT
GND LD1117S50
C503
C46 C47
EEE1AA101SP
C104 C104
10V C100
( 6.3)
SGND
2 3
4 5
MAIN MOTOR DRIVER
CN4
RA11 1k TP264
19
2 7
HU+
TP298
18 1 8
HU-
TP294
17 4 5
HV+
TP265
16 3 6
HV-
TP293
15 R100 1k
HW+
TP292
14 R99 1k
HW-
L4 0
12
S0V
SGND
C34
L3 0
13
+5V
+5.0V
C103
TP363
11
U MAIN_UOUT
TP362
7A
10
U C103 C103
TP206
9
U C608 C611 DCFR
TP361
1-6E
8
V
MAIN_VOUT
TP336
7B
7
V C103
6
V C606
TP337
MAIN_WOUT R111
5
W
DCCTL
TP335
7B 1-6E 56k
4
W 1%(F)
3
W
2
FG+ FG+
7C
1 C101
FG- FG-
7C
SGND
IMSA-9615S-19A-PP-A
SCANNER MOTOR DRIVER
CN10
RA17 1k TP200
14 2 7
HU+
TP199
13 1 8
HU-
TP202
12
4 5
HV+
TP203
11 3 6
HV-
TP204
10 R138 1k
HW+
TP201
9 R137 1k
HW-
+3.3V
8
+5V +5.0V TP212
C103 SCNFGS
1-4E
C104
7
S0V
SGND
TP152
6
COILU
SCANNER_UOUT
TP154
C103 7C R128
C103
5
COILU SCNCTL
TP103
C609 1-6E
100k
4 C610
COILV SCANNER_VOUT
1%(F)
TP105
C103 7C
3
COILV
TP102
C607
2
COILW SCANNER_WOUT
TP104
7C
1
COILW
SGND
IMSA-9615S-14A-PP-A
C101
4 5
A-6
6 7
U5
13 29
HA1+ OUT1_A MAIN_UOUT
28 5B
C103
OUT1_B MAIN_VOUT
12 26 5B
C79
HA1- OUT1_C MAIN_WOUT
5B
R92
15 27 0.33
HB1+ RS1 PGND
C103 2W 2%(G)
14 (PITCH=15)
C78
HB1-
17
HC1+
C103
16
C77
HC1-
25
CW/CCW
TP261 C74
TP263 21
LP1_1
C102
R112 TP262 22
LP1_2
56k 23
1%(F) FGO
R257
10k
C506
+3.3V
C75
24
C221
C102
FGS1 DCFGS
1-4E
TP208
SGND
TP296
C63
R102
FG-
31 7 4C
1.5k
HA2+ OUT2_A SCANNER_UOUT C104
1%(F)
9 5D
C103
OUT2_B SCANNER_VOUT +5.0V
30 10 5D
C90
HA2- OUT2_C SCANNER_WOUT
5D
R103
33 8 0.47 10k
PGND
HB2+ RS2 1%(F)
1.0
1W
C103 FG+
4C
(PITCH=12.5)
C91 32
C64
HB2-
C104
35
HC2+
C103 SGND
34
C92
HC2-
R144 10k
2
FG2
TP233 C95 TP231
4
LP2_1
C102
TP230
R127 5
LP2_2
100k 6
NC6
1%(F)
C507 11
TP232
NC11
C94
C221
TP266
C102
20
VCC1 +24V_2
SGND
1 3
+5.0V VDD1 VCC2 +24V C61
36
C76 50V
C104 C93
VDD36 C96
C100
C104
C106 37 C104 50V
P-GND37
C100
18 38
SGND S-GND18 P-GND38 PGND
19
S-GND19
TB6577FG
6 7
8
A
B
R101 150k
1%(F)
TP299
C62
C471
C
U3
3
4
1 TA75S01F
TP297
R113
10k +5.0V
1%(F) U3 5
V+
C65
C103
V-
TA75S01F 2
SGND
D
E
F
CODE
NAME B512210CIR (6/7)
8
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