Parts/Test Point Locations 151
System Board Connector Pin Signals
Monitor Port Signals
Serial Port Signals
Parallel Port Signals
Pin
Signal Name
I/O
Pin
Signal Name
I/O
1
Red Video
O
9
+5 V dc
2
Green Video
O
10
Synch Ground
3
Blue Video
O
11
Monitor ID Bit 0
4
Monitor ID Bit 2
I
12
SDA
I
5
Synch Ground
13
Horizontal Synch
O
6
Red Ground
14
Vertical Synch
O
7
Green Ground
15
SCL
I
8
Blue Ground
Pin
Signal Name
I/O
Pin
Signal Name
I/O
1
Data Carrier Detect
I
6
Data Set Ready
I
2
Receive Data
I
7
Request To Send
O
3
Transmit Data
O
8
Clear To Send
I
4
Data Terminal Ready
O
9
Ring Indicator
I
5
Signal Ground
Pin
Signal Name
I/O
Pin
Signal Name
I/O
1
Strobe
O
14
Auto Feed
N/A
2
Data Bit 0
I/O
15
Error
I
3
Data Bit 1
I/O
16
Initialize
O
4
Data Bit 2
I/O
17
Select (In)
O
5
Data Bit 3
I/O
18
Ground
P
6
Data Bit 4
I/O
19
Ground
Power
7
Data Bit 5
I/O
20
Ground
Power
8
Data Bit 6
I/O
21
Ground
Power
9
Data Bit 7
I/O
22
Ground
Power
10
Acknowledge
I
23
Ground
Power
Summary of Contents for Aptiva 2158
Page 12: ...VI...
Page 13: ...Notices VII...
Page 14: ...VIII...
Page 15: ...Notices IX...
Page 16: ...X...
Page 24: ...XVIII...
Page 25: ...Notices XIX...
Page 26: ...XX...
Page 58: ...26...
Page 129: ...Repair Information 97...
Page 154: ...122 Repeat to lock clip on the other side...
Page 160: ...128...
Page 186: ...154...
Page 187: ...Copyright IBM Corp 1998 155 Safety Inspection Guide General Guidelines 156...
Page 212: ...180...
Page 216: ...184...
Page 222: ......
