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Maintenance & Service Guide
Presario 3500 Series Personal Computers

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Jumpers & Switches   |   Specifications   |   Connector Pins    |   Power Cord Requirements


Parallel

Serial

Universal Serial Bus (USB)

Keyboard

Mouse

VGA Monitor

Line-in

Speaker/Headphone Out

Microphone

Phone Line to Wall

Phone Line to Phone

Connector Pin Assignments

This section contains the connector pin assignments for the Presario 3500 series of personal computers.

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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
Xb.gif (1402 bytes) 1
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
Xh2.gif (1584 bytes) 1
2
3
4
- Data
+Data
Ground
+5 VDC

Keyboard

Connector Pin Signal
Xd.gif (1199 bytes) 1
2
3
4
5
6
Data
Unused
Ground
+5 VDC
Clock
Unused

Mouse

Connector Pin Signal
Xd.gif (1199 bytes) 1
2
3
4
5
6
Data
Unused
Ground
+5 VDC
Clock
Unused

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VGA Monitor

Connector Pin Signal
Xf.gif (1573 bytes) 1
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

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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
ext15r.gif (1764 bytes) 1

2

3

4
Unused

Tip

Ring

Unused

Phone Line to Phone

Connector Pin Signal
ext15r.gif (1764 bytes) 1
2

3

4

Unused

Tip

Ring

Unused

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Revised: 19 Nov. 1999