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Maintenance & Service Guide
Presario 2250 Series
2510, 2410 ES & 4240 ES Personal Computers

Home  |   Preface    |   Product Description   |   Troubleshooting   |   Illustrated Parts   |    Removal & Replacement
Jumpers & Switches   |   Specifications   |   Connector Pins    |   Power Cord Requirements


Connector Pin Assignments

This section contains the connector pin assignments for the Compaq 2250, 2510, 2410 ES and 4240 ES Series of Personal Computers.


Parallel Connector

XA.gif (2043 bytes)

Pin Signal Pin Signal
1 Strobe* 10 Acknowledge*
2 Data Bit 0 11 Busy
3 Data Bit 1 12 Paper Out
4 Data Bit 2 13 Select
5 Data Bit 3 14 Auto Linefeed*
6 Data Bit 4 15 Error*
7 Data Bit 5 16 Initialize Printer*
8 Data Bit 6 17 Select In*
9 Data Bit 7 18-25 Signal Ground
* = Active low

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Serial Connector

Connector Pin Signal
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2
3
4
5
6
7
8
9
Carrier Detect
Receive Data
Transmit Data
Data Terminal Ready
Signal Ground
Data Set Ready
Ready to Send
Clear to Send
Ring Indicator

Universal Serial Bus

Connector Pin Signal
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2
3
4
- Data
+Data
Ground
+5 VDC

Keyboard

Connector Pin Signal
Xe.gif (1204 bytes) 1
2
3
4
5
6
Data
Unused
Ground
+5 VDC
Clock
Unused

Mouse

Connector Pin Signal
Xe.gif (1204 bytes) 1
2
3
4
5
6
Data
Unused
Ground
+5 VDC
Clock
Unused

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VGA Monitor

Connector Pin Signal
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
Red Analog
Green Analog
Blue Analog
Volume Up
Ground
Ground Analog
Ground Analog
Ground Analog
+5 VDC
Ground
Volume Down
DDC Data
Horizontal Sync
Vertical Sync
DDC Clock

MIDI/Joystick

Connector Pin Signal
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
+5 VDC
Fire A (1)
X-Axis (1)
GND
GND
Y-Axis (1)
Fire B (1)
+5 VDC
+5 VDC
Fire A (2)
X-Axis (2)
MIDI Out
Y-Axis (2)
Fire B (2)
MIDI In

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Line In

Connector Connector
mniphne.gif (1868 bytes) Stereo 1/8" Miniphone

Speaker/Headphone Out

Connector Connector
mniphne.gif (1868 bytes) Stereo 1/8" Miniphone

Microphone

Connector Connector
mniphne.gif (1868 bytes) Stereo 1/8" Miniphone

Phone Line to Wall Jack

Connector Pin Signal
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2
3
4
Unused
Tip
Ring
Unused

Phone Line to Phone

Connector Pin Signal
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2
3
4
Unused
Tip
Ring
Unused

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CD Drive Data Cable

Pin Signal Pin Signal
1 RESET 21 DMARK
2 GND 22 GND
3 DD7 23 -DIOW
4 DD8 24 GND
5 DD6 25 -DIOR
6 DD9 26 GND
7 DD5 27 IORDY
8 DD10 28 SPSYNC
9 DD4 29 -DMACK
10 DD11 30 GND
11 DD3 31 INTRQ
12 DD12 32 -IOCS16
13 DD2 33 DA0
14 DD13 34 -PDIA6
15 DD1 35 DA0
16 DD14 36 DAZ
17 DD0 37 -CS1FX
18 DD15 38 -C53FX
19 GND 39 -DASP
20 (KEY) 40 GNP

Internal Fax/Modem

Pin Signal Pin Signal
1 Unused 4 Tip
2 Unused 5 Unused
3 Ring 6 Unused

 

 
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