Brother HL-5240 Service Manual page 324

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