System Board Connector Pin Signals; Monitor Port Signals; Serial Port Signals; Parallel Port Signals - IBM Aptiva 2170 Hardware Maintenance Service Manual

System Board Connector Pin Signals

Monitor Port Signals

Pin Signal Name
1 Red Video
2 Green Video
3 Blue Video
4 Monitor ID Bit 2
5 Synch Ground
6 Red Ground
7 Green Ground
8 Blue Ground

Serial Port Signals

Pin Signal Name
1 Data Carrier Detect
2 Receive Data
3 Transmit Data
4 Data Terminal Ready
5 Signal Ground

Parallel Port Signals

Pin Signal Name
1 Strobe
2 Data Bit 0
3 Data Bit 1
4 Data Bit 2
5 Data Bit 3
6 Data Bit 4
7 Data Bit 5
8 Data Bit 6
9 Data Bit 7
10 Acknowledge
178
I/O Pin
O 9
O 10 Synch Ground
O 11 Monitor ID Bit 0
I 12 SDA
13
14 Vertical Synch
15 SCL
I/O Pin
I 6
I 7
O 8
O 9
I/O Pin
O 14
I/O 15
I/O 16
I/O 17
I/O 18
I/O 19
I/O 20
I/O 21
I/O 22
I 23
Signal Name
+5 V dc
Horizontal Synch
Signal Name
Data Set Ready
Request To Send
Clear To Send
Ring Indicator
Signal Name
Auto Feed
Error
Initialize
Select (In)
Ground
Ground
Ground
Ground
Ground
Ground
I/O
I
O
O
I
I/O
I
O
I
I
I/O
N/A
I
O
O
P
Power
Power
Power
Power
Power