Brother HL 5030 - B/W Laser Printer Service Manual page 72

CHAPTER 3 THEORY OF OPERATION
<HL-5070N>
DATA[15-0]
6F/8F/3-6A
AT-49 66.6666MHZ
0V
0V
TP6
TP728
40
DATA[0]
RA11 0
1 8
41
DATA[1]
2 7
42
DATA[2]
3 6
43
DATA[3]
4 5
TP729 TP7
44
DATA[4] RA12 0
1 8
45
DATA[5]
7
2
46
DATA[6]
6
3
47
DATA[7]
5 TP8
TP730 4
48
DATA[8] RA14 0
1 8
49
DATA[9]
2 7
53
DATA[10]
3 6
54
DATA[11]
TP731 4 5 TP9
55
DATA[12] 0
RA13
1 8
56
DATA[13]
2 7
57
DATA[14]
3 6
58
DATA[15]
4 5
59
60
61
62
63
64
67
68
69
70
71
72
73
74
75
0V
76
TP739
196
VDD3
C77
TP5
216
0V
C101
TP705
@C88
@R100 @R103 87
1
0 0
C270
@X3
@C91
@R107 85
2
0
C2P
@U8
C159 TP1000
L23
1 5
XIN SSCLK
0.68uH
C103
8
XOUT
6 7
TP195 FRSEL VDD
3
TP2
R88
0
VDD3 S1
4
TP3
R87 2
0
S0 VSS
@C83
CY25814 C103
U7
TP35
9
R124 33
DATA00 ADR01/24
10
RA7 0
4
DATA01 ADR02 5
11
3
DATA02 ADR03 6
12
DATA03 ADR04 2 7
TP36
13
DATA04 ADR05 1 8
14
RA8 0
DATA05 ADR06 4 5
15
DATA06 ADR07 3 6
16
DATA07 ADR08 2 7
TP37
17
DATA08 ADR09 1 8
18
RA9 0
DATA09 ADR10 4 5
19
3 6
DATA10 ADR11
25
2 7
DATA11 ADR12
TP723
26
1 8
DATA12 ADR13
27
0
RA10
4 5
DATA13 ADR14
28
3 6
DATA14 ADR15/BA0
29
2 7
DATA15 ADR16/BA1
TP724
30
1 8
DATA16/IO ADR17/RASN
TP740
31
R129 0
DATA17/IO ADR18/CASN
TP741
32
R130
0
DATA18/IO ADR19/WEN
TP742
33
R125
0
DATA19/IO ADR20/DQM0
TP725
34
R126 33
DATA20/IO ADR21/DQM1
TP726
35
R127 33
DATA21/IO ADR22/DQM2
TP727
36
R128 33
DATA22/IO ADR23/DQM3
DATA23/IO
DATA24/IO
TP10 TP700
211 R92
33
DATA25/IO ROMCSN0 ROMCSN0
TP11 TP701
212 @R95 33 6D/7D
DATA26/IO ROMCSN1
ROMCSN1
4-7D
DATA27/IO
TP12 TP702
R89
213
33
DATA28/IO IOWEN IOWEN
TP13 TP703
6D/4-7D
214 R91
33
DATA29/IO IORDN IORDN
6D/7D/4-7D
DATA30/IO
DATA31/IO
TP196
TP14
95 R81
51
SDCLK0 SDCLK0
TP15
94 R85 7B
0
SDCLK1 SDCLK1
TP16
93 R90 3-3C
0
EXINTN0 SDCLK2 SDCLK2
3-3C
TP17 TP722
96 R75
51
SDCKE0
TP26
97 R78
0
RSTN SDCKE1
TP197
TP29
90 R67
51
SDCSN0 SDCSN0
TP30
89 R58 7A
33
SCKOUT SDCSN1 SDCSN1
TP31
88 R70 3-2D
33
SDCSN2 SDCSN2
3-2D
TP32
92 R72
33
SCKIN SDSDA
TP33
R68
91
33
SDSCL
Aurora
VDD3
0V
Fig. 3-4
3-4
TP198
ADR[1]
ADR[2]
ADR[3]
ADR[4]
ADR[5]
ADR[6]
ADR[7]
ADR[8]
ADR[9]
ADR[10]
ADR[11]
ADR[12]
ADR[13]
ADR[14]
ADR[15]
ADR[16]
ADR[17]
ADR[18]
ADR[19]
ADR[20]
ADR[21]
ADR[22]
ADR[23]
SDCKE0
7B
SDCKE1
R79 4.7k 3-3C
4.7k
R76
0V
R73
VDD3
4.7k
SDSDA
3-2C
SDSCL
3-2C
VDD3
ADR[23-1]
5F/6C/7F/3-2E/
3-3D/4-6E/3-3C/
7A/7B/3-2D