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Operation theory
Engine controller system
4-29
FS-6750
59
SCLKOUT
OUT
Main I/F serial clock output
Main I/F
60
VDD
Power terminal
61
VSS
Power terminal (Ground)
62
SOOUT
OUT
Main I/F serial data output
Main I/F
63
SBSY*
OUT
Main I/F status busy output, L: Busy
Main I/F
64
VDFON1*
OUT
Forced light emission period notification signal 1,
L: Forced light emission period
Pos.
Main I/F
65
EGIR
OUT
Main I/F engine interrupt output, H: Interrupt
Main I/F
66
STRIG
OUT
Not used
67
SDIR
OUT
Main I/F status/command discrimination output
Main I/F
68
SCLKIN
IN
Main I/F serial clock input
Main I/F
69
SOIN
IN
Main I/F serial data input
Main I/F
70
FRCS*
OUT
Flash ROM chip select output, L: Enable
Pos.
Flash ROM
71
VSS
Power terminal (Ground)
72
TEST2
OUT
Output terminal for engine debugging
Neg.
73
GAINT
OUT
Engine interrupt output, H: Interrupt
Engine CPU
74
WR*
IN
Bus right signal input
75
RD*
IN
Bus read signal input
76
VDD
Power terminal
77
ALE
IN
Address latch input
78
RESET*
IN
Reset input, L: Reset period
79
DBRX
IN
Engine debugger serial data input
80
DBCLK
IN
Engine debugger serial clock input
81
VSS
Power terminal (Ground)
82
DBTX
OUT
Engine debugger serial data output
83
LA7
OUT
Latch address
84
LA6
OUT
Latch address
85
LA5
OUT
Latch address
86
LA4
OUT
Latch address
87
LA3
OUT
Latch address
88
LA2
OUT
Latch address
89
LA1
OUT
Latch address
90
LA0
OUT
Latch address
91
VSS
Power terminal (Ground)
92
A19
IN
Engine CPU address
93
A18
IN
Engine CPU address
94
A17
IN
Engine CPU address
95
AD7
IN/OUT
Engine CPU address/data bus
96
AD6
IN/OUT
Engine CPU address/data bus
97
AD5
IN/OUT
Engine CPU address/data bus
98
AD4
IN/OUT
Engine CPU address/data bus
99
AD3
IN/OUT
Engine CPU address/data bus
100
AD2
IN/OUT
Engine CPU address/data bus
101
VSS
Power terminal (Ground)
102
AD1
IN/OUT
Engine CPU address/data bus
103
AD0
IN/OUT
Engine CPU address/data bus
104
FANON*
OUT
Printer fan on output, L: On
Neg.
Table 4. 3 g/a pin assignment—3/4
Pin no.
Signal
In/Out
Function
Logic
Remarks
Содержание FS-6750
Страница 1: ...SERVICE MANUAL...
Страница 6: ...Conventions Preface vi This page left intentionally blank...
Страница 52: ...Maintenance Handling the developer unit 3 10 FS 6750 Insert the developer into the container as shown below...
Страница 120: ...Disassembly Disassembly Option paper feeder 5 24 FS 6750 This page left blank intentionally...
Страница 148: ...Troubleshooting Print quality problems 6 28 FS 6750 This page left blank intentionally...