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Maintenance & Service Guide
Presario 7900 Series Personal Computers
Models: 7922, 7930, 7935, 7940, 7947, 7950, 7970, 7973, 7985

MSG Index Product Description Troubleshooting Illustrated Parts
Home Removal & Replacement Jumpers & Switches Specifications

Parallel

Serial

Universal Serial Bus (USB)

Keyboard

Mouse

VGA Monitor

MIDI/Joystick

Line-in

Speaker/Headphone Out

Microphone

Phone Line to Wall

Phone Line to Phone

DVD-Drive Data Cable

Modem

Connector Pin Assignments

This section contains the connector pin assignments for the Presario 7900 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
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
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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
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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DVD 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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