Main Pcb; Cpu - Brother HL 5030 - B/W Laser Printer Service Manual

Service manual
Table of Contents

Advertisement

1.3

Main PCB

For the entire circuit diagram of the main PCB, see
DIAGRAM'
in this manual.
1.3.1

CPU

A Fujitsu 32bit RISC CPU, SPARClite is built in the ASIC. While the CPU is driven with a
clock frequency of 66.66 MHz in the user logic block, it itself runs at 133.33 MHz, which is
generated by multiplying the source clock by two.
<HL-5030/5040/5050>
TP731
DATA[0]
DATA[1]
DATA[2]
DATA[3]
TP732
DATA[4]
DATA[5]
DATA[6]
DATA[7]
TP733
DATA[8]
DATA[9]
DATA[10]
DATA[11]
TP734
DATA[12]
DATA[13]
DATA[14]
DATA[15]
DATA[15-0]
7F/8F/3-6A
AT-49 66.6666MHz
0V
0V
U5
TP6
40
RA12
22
DATA00
1
8
41
DATA01
7
2
42
DATA02
3
6
43
DATA03
4
5
TP7
44
RA13
22
DATA04
1
8
45
DATA05
7
2
46
DATA06
3
6
47
DATA07
4
5
TP8
48
RA15
22
DATA08
1
8
49
DATA09
2
7
53
DATA10
3
6
54
DATA11
4
5
TP9
55
RA14
22
DATA12
8
1
56
DATA13
2
7
57
DATA14
3
6
58
DATA15
4
5
59
DATA16/IO
60
DATA17/IO
61
DATA18/IO
62
DATA19/IO
63
DATA20/IO
64
DATA21/IO
67
DATA22/IO
68
DATA23/IO
69
DATA24/IO
70
DATA25/IO
71
DATA26/IO
72
DATA27/IO
73
DATA28/IO
74
DATA29/IO
75
0V
DATA30/IO
76
TP736
DATA31/IO
196
VDD3
EXINTN0
C43
TP5
216
0V
RSTN
C101
C52
TP705
R70
87
SCKOUT
1
0
C100
R71
X2
1M
C57
85
2
SCKIN
C2
TP1009
C60
L6
Aurora
0.82uH
C103
APPENDIX 1. to 7. 'MAIN PCB CIRCUIT
TP35
9
R90
33
ADR01/24
10
RA8
10
4
5
ADR02
11
3
ADR03
6
12
ADR04
2
7
TP36
13
1
8
ADR05
14
RA9
10
4
5
ADR06
15
3
ADR07
6
16
ADR08
2
7
TP37
17
1
8
ADR09
18
RA10
10
4
5
ADR10
19
ADR11
3
6
25
2
7
ADR12
TP726
26
1
8
ADR13
27
10
RA11
4
ADR14
5
28
ADR15/BA0
3
6
29
2
7
ADR16/BA1
TP727
30
1
8
ADR17/RASN
TP1000
31
R97
10
ADR18/CASN
TP1001
32
R98
10
ADR19/WEN
TP1002
33
R91
22
ADR20/DQM0
TP728
34
R92
33
ADR21/DQM1
TP729
35
R93
33
ADR22/DQM2
TP730
36
R94
33
ADR23/DQM3
TP10
TP700
211
R56
33
ROMCSN0
ROMCSN0
6D/8D
212
TP351
ROMCSN1
TP12
TP702
213
R49
33
IOWEN
IOWEN
TP13
TP703
214
R51
6D
33
IORDN
IORDN
6D/8D
TP14
TP196
95
R63
51
SDCLK0
SDCLK0
TP15
94
R65
8B
0
SDCLK1
SDCLK1
TP16
3-4C
93
R68
0
SDCLK2
SDCLK2
3-4C
TP17
TP1003
96
R57
51
SDCKE0
TP26
R61
97
0
SDCKE1
TP29
TP197
90
R42
51
SDCSN0
SDCSN0
TP30
89
R41
8A
33
SDCSN1
SDCSN1
TP31
R50
3-2D
88
33
SDCSN2
SDCSN2
3-2D
TP32
92
R52
33
SDSDA
TP33
91
R48
33
SDSCL
Fig. 3-3
3-3
HL-5030/5040/5050/5070N SERVICE MANUAL
VDD3
TP198
0V
SDCKE0
8B
SDCKE1
3-4C
4.7k
R62
R58
4.7k
0V
R53
VDD3
4.7k
SDSDA
3-2C
SDSCL
3-2C
ADR[23-1]
6F/7C/7F/3-2E/
ADR[1]
3-4D/3-4C/8A/
8B/3-2D
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]

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents