AL-1551 ELECTRICAL SECTION 12-6
59
MAD11
OUT
DRAM
Address bus of DRAM (page memory)
60
GND
Power
61
/CAS0
OUT
DRAM
CAS signal of DRAM (page memory)
62
/CAS1
OUT
DRAM
CAS signal of DRAM (page memory)
63
/OE
OUT
DRAM
Read enable signal of DRAM (page memory)
64
/WE
OUT
DRAM
Write enable signal of DRAM (page memory)
65
OUTD0
OUT
Reserved
66
OUTD1
OUT
Reserved
67
OUTD2
OUT
Reserved
68
OUTD3
OUT
Reserved
69
3.3V
Power
70
OUTD4
OUT
Reserved
71
OUTD5
OUT
Reserved
72
GND
Power
73
OUTD6
OUT
Reserved
74
OUTD7
OUT
Reserved
75
OUTD8
OUT
Reserved
76
OUTD9
OUT
Reserved
77
OUTD10
OUT
Reserved
78
OUTD11
OUT
Reserved
79
OUTD12
OUT
Reserved
80
OUTD13
OUT
Reserved
81
OUTD14
OUT
Reserved
82
OUTD15
OUT
Reserved
83
/HSYNC
OUT
PCL board
Horizontal sync signal with print area output only
84
/PCLPRD
IN
PCL board
Print video data (serial) from PCL board
85
/PCLREQ
OUT
PCL board
DREQ signal to PCL board
86
/PCLACK
IN
PCL board
ACK signal from PCL board
87
/PCLCS
IN
PCL board
88
3.3V
Power
89
GND
Power
90
5V
Power
91
GND
Power
92
/FAXPRD
IN
Reserved
93
/FAXREQ
OUT
Reserved
94
/FAXACK
IN
Reserved
95
3.3V
Power
96
/FAXCS
IN
Reserved
97
/ESPRD
IN
Electric sort
board*(Reserved)
(Reserved)
98
GND
Power
99
/ESREQ
OUT
Electric sort
board*(Reserved)
(Reserved)
100
/ESACK
IN
Electric sort
board*(Reserved)
(Reserved)
101
/ESCS
IN
Electric sort
board*(Reserved)
(Reserved)
102
PARAD0
IN/OUT
1284 board connector
DATA bus (IEEE1284 communication port)
103
PARAD1
IN/OUT
1284 board connector
DATA bus (IEEE1284 communication port)
104
PARAD2
IN/OUT
1284 board connector
DATA bus (IEEE1284 communication port)
105
PARAD3
IN/OUT
1284 board connector
DATA bus (IEEE1284 communication port)
106
PARAD4
IN/OUT
1284 board connector
DATA bus (IEEE1284 communication port)
107
PARAD5
IN/OUT
1284 board connector
DATA bus (IEEE1284 communication port)
108
5V
Power
109
PARAD6
IN/OUT
1284 board connector
DATA bus (IEEE1284 communication port)
110
PARAD7
IN/OUT
1284 board connector
DATA bus (IEEE1284 communication port)
111
GND
Power
112
/REV
OUT
1284 board connector
ECP mode I/O select (LOW:P
→
H)
113
INIT
IN
1284 board connector
INIT signal (IEEE1284 communication port)
114
/SLCTIN
IN
1284 board connector
/SLCTIN signal (IEEE1284 communication port)
PIN No.
Signal name
IN/OUT
Connected to
Description
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Summary of Contents for AL-1043
Page 115: ...AL 1551 CIRCUIT DIAGRAM 13 8 OPU ...
Page 116: ...AL 1551 CIRCUIT DIAGRAM 13 9 GDI PWB ...
Page 117: ...AL 1551 CIRCUIT DIAGRAM 13 10 GDI MEMORY PWB 6MB ...
Page 118: ...AL 1551 CIRCUIT DIAGRAM 13 11 POWER SUPPLY 120V 127V ...
Page 119: ...AL 1551 CIRCUIT DIAGRAM 13 12 POWER SUPPLY 200V Series ...
