Service Reference Guide, d300, dx6050
319865-008
A–3
Connector Pin Assignments
Parallel Interface
Connector and Icon
Pin
Signal
Pin
Signal
Pin
Signal
1
2
3
Strobe
Data Bit 0
Data Bit 1
7
8
9
Data Bit 5
Data Bit 6
Data Bit 7
13
14
15
Select
Auto Linefeed
Error
4
5
6
Data Bit 2
Data Bit 3
Data Bit 4
10
11
12
Acknowledge
Busy
Paper End
16
17
18-25
Initialize Printer
Select IN
Signal Ground
Serial Interface, Powered and Non-Powered
Connector and Icon
Pin
Signal
1
2
3
Carrier Detect (12V if powered)
Receive Data
Transmit Data
4
5
6
Data Terminal Ready
Signal Ground
Data Set Ready
7
8
9
Request to Send
Clear to Send
Ring Indicator (5V if powered)
USB
Connector and Icon
Pin
Signal
1
2
3
4
+5 VDC
- Data
+ Data
Ground
Microphone
Connector and Icon (1/8" miniphone)
Pin
Signal
1 (Tip)
Audio
2 (Ring)
Power
3 (Shield)
Ground
1 2 3
1 2 3
Summary of Contents for Compaq d300 Series
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Page 10: ...viii 319865 008 Service Reference Guide d300 dx6050 Contents ...
Page 32: ...2 20 319865 007 Service Reference Guide d300 Setup Utilities and Diagnostics Features ...
Page 196: ...C 8 319865 008 Service Reference Guide d300 dx6050 POST Error Messages ...
Page 222: ...D 26 319865 008 Service Reference Guide d300 dx6050 Troubleshooting Without Diagnostics ...
Page 226: ...E 4 319865 008 Service Reference Guide d300 dx6050 Memory ...
Page 238: ...Index 8 319865 008 Service Reference Guide d300 dx6050 Index ...