Table Of Contents - Compaq Presario 7800 Series Maintenance & Service Manual

Presario 7800 Series and 5900T Personal Computers
MSG Index
Home
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
Pin Signal
1 Strobe*
2 Data Bit 0
3 Data Bit 1
4 Data Bit 2
5 Data Bit 3
6 Data Bit 4
7 Data Bit 5
8 Data Bit 6
9 Data Bit 7
* = Active low
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Connector
Connector
Connector
Connector
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Connector
Connector
Ext13.gif (3492 bytes)
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Connector
Connector
Connector
Connector
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Connector
ext15r.gif (1764 bytes)
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Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Pin
1
2
3
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Maintenance & Service Guide
Product Description
Removal &
Replacement
Connector Pin Assignments
This section contains the connector pin assignments for the Presario 7800 series
of personal computers.
Parallel Connector
Serial Connector
Universal Serial Bus
Connector
Stereo 1/8" Miniphone
Speaker/Headphone Out
Connector
Stereo 1/8" Miniphone
Connector
Stereo 1/8" Miniphone
Phone Line to Wall Jack
Pin Signal
1
2
3
4
Phone Line to Phone
Pin Signal
1
2
3
4
DVD Drive Data Cable
Signal
RESET
GND
DD7
DD8
DD6
DD9
DD5
DD10
DD4
DD11
DD3
DD12
DD2
DD13
DD1
DD14
DD0
DD15
GND
(KEY)
Internal Fax/Modem
Signal
Unused
Unused
Ring
Troubleshooting
Jumpers & Switches
Pin Signal
10 Acknowledge*
11 Busy
12 Paper Out
13 Select
14 Auto Linefeed*
15 Error*
16 Initialize Printer*
17 Select In*
18-25 Signal Ground
Pin Signal
1 Carrier Detect
2 Receive Data
3 Transmit Data
4 Data Terminal Ready
5 Signal Ground
6 Data Set Ready
7 Ready to Send
8 Clear to Send
9 Ring Indicator
Pin Signal
1 - Data
2 +Data
3 Ground
4 +5 VDC
Keyboard
Pin Signal
1 Data
2 Unused
3 Ground
4 +5 VDC
5 Clock
6 Unused
Mouse
Pin Signal
1 Data
2 Unused
3 Ground
4 +5 VDC
5 Clock
6 Unused
VGA Monitor
Pin Signal
1 Red Analog
2 Green Analog
3 Blue Analog
4 Volume Up
5 Ground
6 Ground Analog
7 Ground Analog
8 Ground Analog
9 +5 VDC
10 Ground
11 Volume Down
12 DDC Data
13 Horizontal Sync
14 Vertical Sync
15 DDC Clock
MIDI/Joystick
Pin Signal
1 +5 VDC
2 Fire A (1)
3 X-Axis (1)
4 GND
5 GND
6 Y-Axis (1)
7 Fire B (1)
8 +5 VDC
9 +5 VDC
10 Fire A (2)
11 X-Axis (2)
12 MIDI Out
13 Y-Axis (2)
14 Fire B (2)
15 MIDI In
Line In
Microphone
Unused
Tip
Ring
Unused
Unused
Tip
Ring
Unused
Pin
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Pin
4
5
6
Illustrated Parts
Specifications
Signal
DMARK
GND
-DIOW
GND
-DIOR
GND
IORDY
SPSYNC
-DMACK
GND
INTRQ
-IOCS16
DA0
-PDIA6
DA0
DAZ
-CS1FX
-C53FX
-DASP
GNP
Signal
Tip
Unused
Unused