Read Sharp AL-1622 (serv.man16) Service Manual online
AL-1611/AL-1622
ELECTRICAL SECTION
13 – 6
(2) pin/signal table
PIN No.
Signal Name
IN/OUT
Description
1
/SCANSP
IN
Scanner process interrupt
signal
signal
2
/PRSTART
IN
Print start trigger signal
3
TMON
IN
Toner motor ON/OFF
4
TMCLK
IN
Toner motor reference clock
5
3.3V
Power
6
CPUAD7
IN
CPU address bus
7
CPUAD6
IN
8
GND
Power
9
CPUAD5
IN
CPU address bus
10
CPUAD4
IN
11
CPUAD3
IN
12
CPUAD2
IN
13
CPUAD1
IN
14
/CPUSYNC
OUT
Horizontal synchronization
signal
signal
15
/INTR
OUT
Interruption request signal
16
/CPUCS
IN
CPU chip select signal
17
/RESET
IN
Reset signal
18
5V
Power
19
GND
Power
20
3.3V
Power
21
GND
Power
22
MDATA15
IN/OUT
D ata b us o f D RA M (p a ge
memory)
memory)
23
MDATA14
IN/OUT
24
MDATA13
IN/OUT
25
MDATA12
IN/OUT
26
MDATA11
IN/OUT
27
MDATA10
IN/OUT
28
MDATA9
IN/OUT
29
MDATA8
IN/OUT
30
MDATA7
IN/OUT
31
3.3V
Power
32
MDATA6
IN/OUT
D ata b us o f D RA M (p a ge
memory)
memory)
33
MDATA5
IN/OUT
34
GND
Power
35
MDATA4
IN/OUT
D ata b us o f D RA M (p a ge
memory)
memory)
36
MDATA3
IN/OUT
37
MDATA2
IN/OUT
38
MDATA1
IN/OUT
39
MDATA0
IN/OUT
40
/RAS0
OUT
RAS signal 0 of DRAM (page
memory)
memory)
41
/RAS1
OUT
RAS signal 1 of DRAM (page
memory)
memory)
42
/RAS2
OUT
RAS signal 2 of DRAM (page
memory)
memory)
43
/RAS64
OUT
(Not used)
44
3.3V
Power
45
/RAS16
OUT
(Not used)
46
MAD0
OUT
Address bus of DRAM (page
memory)
memory)
47
GND
Power
48
MAD1
OUT
Address bus of DRAM (page
memory)
memory)
49
MAD2
OUT
50
MAD3
OUT
51
MAD4
OUT
52
MAD5
OUT
53
MAD6
OUT
54
MAD7
OUT
55
MAD8
OUT
56
MAD9
OUT
57
3.3V
Power
58
MAD10
OUT
Address bus of DRAM (page
memory)
memory)
59
MAD11
OUT
60
GND
Power
61
/CAS0
OUT
CAS signal of DRAM (page
memory)
memory)
62
/CAS1
OUT
63
/OE
OUT
Read enable signal of DRAM
(page memory)
(page memory)
64
/WE
OUT
Write enable signal of DRAM
(page memory)
(page memory)
65
OUTD0
OUT
(Not used)
66
OUTD1
OUT
67
OUTD2
OUT
68
OUTD3
OUT
69
3.3V
Power
70
OUTD4
OUT
(Not used)
71
OUTD5
OUT
72
GND
Power
73
OUTD6
OUT
(Not used)
74
OUTD7
OUT
75
OUTD8
OUT
76
OUTD9
OUT
77
OUTD11
OUT
78
OUTD10
OUT
79
OUTD12
OUT
80
OUTD13
OUT
81
OUTD14
OUT
82
OUTD15
OUT
83
/HSYNC
OUT
84
/PCLPRD
IN
85
/PCLREQ
OUT
86
/PCLACK
IN
87
/PCLCS
IN
88
3.3V
Power
89
GND
Power
90
5V
Power
91
GND
Power
92
/FAXPRD
IN
(Not used)
PIN No.
Signal Name
IN/OUT
Description
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