HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL
A-7
Confidential
D
B
A
C
E
F
E
D
B
A
C
F
1
1
2
3
4
6
7
8
2
3
4
5
6
7
8
5
Appendix 1. Main PCB Circuit Diagram, HL-5240/5250DN/5270DN/5280DW (7/7)
NAME
CODE
B512210CIR (7/7)
DATA[14]
DATA[9]
DATA[6]
DATA[13]
DATA[4]
DATA[12]
DATA[5]
DATA[1]
DATA[11]
DATA[7]
DATA[10]
DATA[15]
DATA[8]
DATA[3]
500mA
DATA[0]
DATA[2]
C803
C103
BM06B-SRSS-TB
6
FG
5
4
TP809
5
4
6
3
8
1
TP835
R821
10k
TP818
R814
10k
+3.3V
TP830
C815
C104
TP801
5
4
SGND
TP837
TP844
5
GND
+3.3V
SGND
R800
3.3k
6
3
1-1B/3-1D/4-1E
DATA[15-0]
RA800
33
7
2
6
3
SGND
4
DATA-
TP814
TP817
8
1
5D
VDD_5V
TP836
TP820
R804
100
R827
10k
+5.0V
TP826
1-3A/3-2A/3-3A/4-1A
IO_WR_N
SGND
TP846
1-6A
WLAN_RST_N
TP840
CN800
2
+5V
TP810
+3.3V
1-3B
WLAN_DACK_N
TP821
RA801
33
7
2
1-3A
WLAN_CS_N
TP827
R805
1k
6
3
TP800
SGND
SGND
+3.3V
TP829
TP839
1-1B
WLAN_H_SUSPEND
TP815
1-1A
WLAN_INT
R809
10k
8
1
C805
C103
1-3A/3-2A/3-3A/4-1A
IO_RD_N
R816 10k
TP843
R823
22
R815 10k
TP825
C814
C47P
C806
C27P
R811
100
RA803
33
7
2
C808
C103
C800
C104
1-3B/3-1D/4-1D
ADR[2]
SGND
TP813
RA802
33
7
2
1
FG
SGND
TP804
U801
R5520H001A-T1-FB
IN
4
EN
1
GND
2
OUT
5
FLG
3
C802
C103
TP823
C811
C106
(2125)
TP819
TP841
+3.3V
TP828
8
1
R807
100
R803
100
R822
22
TP842
TP845
5
4
R810
100
SGND
C807
C27P
TP847
TP812
TP807
+3.3V
R817 10k
SGND
U800
ISP1362BD
CS
21
RD
20
WR
22
RESET
32
INT1
30
INT2
31
D0
63
D1
64
D2
2
D3
3
D4
5
D5
6
D6
7
D7
8
D8
10
D9
11
D10
12
D11
13
D12
15
D13
16
D14
17
D15
18
A0
61
A1
62
DREQ1
24
DREQ2
25
DACK1
28
DACK2
29
H_SUSPEND/WAKEUP
33
D_SUSPEND/WAKEUP
34
GL
39
OTGMODE
45
ID
48
X1in
43
X2out
44
H_PSW1
35
H_PSW2
36
H_OC1
42
H_OC2
41
OTG_DM1
49
OTG_DP1
50
H_DM2
46
H_DP2
47
TEST0
23
TEST1
59
TEST2
60
CLKOUT
38
CP_CAP1
53
CP_CAP2
54
Vdd_5V
56
Vbus
55
Vcc4
4
Vcc14
14
Vcc26
26
Vcc40
40
Vcc52
52
Vcc58
58
DGND1
1
DGND9
9
DGND19
19
DGND27
27
DGND37
37
DGND57
57
AGND
51
TP831
+3.3V
TP805
C813
C104
C812
C47P
L800 (1608)
0
5C
VDD_5V
TP811
R819
100k
SGND
R818
220
TP802
C809
C103
C801
823
FG_WLAN
TP824
TP832
TP822
X800
SMD-49 12.00MHz
1
2
R808
10k
C810
C103
TP834
R813
10k
C804
C103
R806
0
R812
100k
3
DATA+
TP833
R825
100
TP806
R820
10k
TP838
TP816
+3.3V
+3.3V
1-1B
WLAN_DREQ
R826
10k
TP808
TP803
+3.3V
OT2
+5.0V
C817
C101
+24V_2
+24V_2
+3.3V
+24V
+24V
C816
C101
C818
C101
Wireless LAN