Sharp FO 4400 - B/W Laser - All-in-One Service Manual page 99

LC24199B-WJ0-E (IC21) Terminal description (1/2)
PIN I/O Name
1 P VSS
—
2 N.C
3 I XCI1
4 O ERLY0
5 O GAINC0
6 O DPMUTE0
7 O CML0
8 O TXMUTE0
9 O DPON0
10 I XEXHS0
11 I XCI0
12 I PDATAM
13 O CTBSYB
14 O CPRDYB
15 I ETBSYB
16 P VDD
17 P VSS
18 I PRRDYB
19 I EPRDYB
20 O PDATA
21 O PCURESB
22 O PCLK
23 I PSTS
24 O PCMD
25 I CTBSYPCLB
26 I CPRDYPCLB
27 O ETBSYPCLB
28 O PRRDYPCLB
29 O EPRDYPCLB
30 I PDATAINPCL
31 O PCLRESB
32 O XNICACKP
33 I RXWP
34 P VDD
35 P VSS
36 I PCLKPCL
37 O PSTSPCL
38 I PCMDPCL
39 O PACK
40 I PREQ
41 B DPOPCL0
42 B DPOPCL1
43 B DPOPCL2
44 B DPOPCL3
45 B DPOPCL4
46 B DPOPCL5
47 B DPOPCL6
48 B DPOPCL7
49 B DPOPCL8
50 B DPOPCL9
—
51 N.C
52 P VDD
Function
Ground
Not connect
CI detect signal
Reserved for 200V
Reserved for 200V
Reserved for 200V
CML relay control signal
Mute control for TX signal
Active choke control
Hook detect signal for external telephone
CI detect signal
Print data form main
Controller status busy
Controller power ready
Engine status busy
Power supply
Ground
Printer ready
Engine power ready
Video data of printer
PCU reset signal
Serial communication clock
Status data from PCU
Command data to PCU
Controller status busy in PCL mode
Controller power ready in PCL mode
Engine status busy in PCL mode
Printer ready in PCL mode
Engine power ready in PCL mode
Video data from PCL
PCL reset signal
Acknowledge signal for NIC in PCL mode
READ/WRITE signal from PC L
Power supply
Ground
Serial communication clock in PCL mode
Status data from PCU in PCL mode
Command data to PCL in PCL mode
Printing acknowledge signal
Printing request signal
GPO bus for PCL board
GPO bus for PCL board
GPO bus for PCL board
GPO bus for PCL board
GPO bus for PCL board
GPO bus for PCL board
GPO bus for PCL board
GPO bus for PCL board
GPO bus for PCL board
GPO bus for PCL board
Not connect
Power supply
PIN I/O Name
55 P VSS
—
56 N.C
57 B DPOPCL10
58 B DPOPCL11
59 B DPOPCL12
60 B DPOPCL13
61 B DPOPCL14
62 B DPOPCL15
63 I DPAPCL0
64 I DPAPCL1
65 I DPAPCL2
66 I DPAPCL3
67 I DPAPCL4
68 I DPAPCL5
69 I DPAPCL6
70 P VDD
71 P VSS
72 I DPAPCL7
73 I DPAPCL8
74 I DPAPCL9
75 I DPAPCL10
76 DPAPCL11
I
77 DPAPCL12
I
78 I DPAPCL13
79 I DPAPCL14
80 I DPAPCL15
81 I DPAPCL16
82 I XCSNICP
83 B DPONIC0
84 B DPONIC1
85 B DPONIC2
86 B DPONIC3
B
8 7 DPONIC4
88 P VDD
89 P VSS
90 B DPONIC5
91 B DPONIC6
92 B DPONIC7
93 B DPONIC8
94 B DPONIC9
95 B DPONIC10
96 B DPONIC11
97 B DPONIC12
98 B DPONIC13
99 B DPONIC14
100 B DPONIC15
101 O NICRESB
102 O RXWNIC
103 O XNICACKH
104 O XCSNIC
—
105 N.C
106 P VDD
5 – 9
Function
Ground
Not connect
GPO bus for PCL board
GPO bus for PCL board
GPO bus for PCL board
GPO bus for PCL board
GPO bus for PCL board
GPO bus for PCL board
Address bus for NIC board (PCL)
Address bus for NIC board (PCL)
Address bus for NIC board (PCL)
Address bus for NIC board (PCL)
Address bus for NIC board (PCL)
Address bus for NIC board (PCL)
Address bus for NIC board (PCL)
Power supply
Ground
Address bus for NIC board (PCL)
Address bus for NIC board (PCL)
Address bus for NIC board (PCL)
Address bus for NIC board (PCL)
Address bus for NIC board (PCL)
Address bus for NIC board (PCL)
Address bus for NIC board (PCL)
Address bus for NIC board (PCL)
Address bus for NIC board (PCL)
Address bus for NIC board (PCL)
Chip select signal
DPO bus for NIC board
DPO bus for NIC board
DPO bus for NIC board
DPO bus for NIC board
DPO bus for NIC board
Power supply
Ground
DPO bus for NIC board
DPO bus for NIC board
DPO bus for NIC board
DPO bus for NIC board
DPO bus for NIC board
DPO bus for NIC board
DPO bus for NIC board
DPO Bus for NIC Board(*2)
DPO Bus for NIC Board(*2)
DPO Bus for NIC Board(*2)
DPO Bus for NIC Board(*2)
Reset for NIC
R/W signal for NIC
XACK to HOST
Chip Select Signal for NIC
Not connect
Power supply
FO-4400U
FO-CS1