Sharp AR-121E Service Manual page 108

PIN No Signal code
45 D4
46 D5
47 D6
48 D7
49 D8
50 D9
51 D10
52 D11
53
54 D12
55 D13
56 D14
57 D15
58
59 (OP-DATA)
60
61
62
63 (OP-CLK)
64 /PWOFF
65
66
67
68
69 PSW
70 KIN1
71 KIN2
72 TMCLK
73 /TMEN
74
75 PMCLK
76 /PRSTART
77 /SCANSP
78 /SCANST
79 HL
80 WDTOVF-
81 RES-
82
83
84
85 XTAL
86 EXTAL
87
88 CPUCLK
89
90 /AS
91 /RD
92 /HWR
93 /LWR
Input/output
Data input/output
Data input/output
Data input/output
Data input/output
Data input/output
Data input/output
Data input/output
Data input/output
Data input/output
Data input/output
Data input/output
Data input/output
Output
Output
Output
Input
Input
Input
Timer output
Output
Timer output
Output
Output
Output
OutputüiTimer outputüj
Output
Input
Input
Input
Output
Output
Output
Output
Output
12-4
Operating
Data Bus
Data Bus
Data Bus
Data Bus
Data Bus
Data Bus
Data Bus
Data Bus
D-GND
Data Bus
Data Bus
Data Bus
Data Bus
5V
Data Signal for Operation Panel
NC-pull up
NC-pull up
NC-pull up
Clock for Operation Panel
Power Off
D-GND
NC-pull up
D-GND
D-GND
Print switch input
Key input 1
Key input 2
Clock for Toner Motor
On-Off Control for Toner Motor
NC-pull up
Clock for Polygon Motor
Printing Start Signal
Scaning Stop Signal
Scaning Start Signal
On-Off Control for Heatrer Lamp
Watchdog Timer
Reset
pull up
pull up
5V
Clock
Clock
D-GND
System Clock for G/A
5V
pull up
Read Signal
Write Signal (High Address)
Write Signal (Low Address)
AL-1000/1010