System Board Connector Pin Signals; Monitor Port Signals; Parallel Port Signals; Serial Port Signals - IBM Aptiva Series Hardware Maintenance

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

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
11 Busy
12 Paper Empty
13 Select

Serial Port Signals

Pin Signal Name
I/O Pin
O 9
O 10
O 11
I 12
13
14
15
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
I 24
I 25
O
I/O Pin
Parts/Test Point Locations
Signal Name
+5 V dc
Synch Ground
Monitor ID Bit 0
SDA
Horizontal Synch
Vertical Synch
SCL
Signal Name
Auto Feed
Error
Initialize
Select (In)
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Signal Name
I/O
I
I
O
O
I
I/O
N/A
I
O
O
Power
Power
Power
Power
Power
Power
Power
Power
I/O
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