Compaq Presario 1810 Service Guide
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United States January 2, 2003
Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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Compaq Presario 1800 Series Portable Computer is a continuation of the new generation of multimedia portable computers with an innovative integrated design, outstanding audio and video, advanced core features, and attractive styling. This full-function, Pentium II - based series of portable computers allows full desktop functionality and additional connectivity via the optional port replicator.
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Maintenance & Service Guide
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Removal & Replacement Procedures
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Notice
The information in this guide is subject to change without notice.
COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR
EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDENTAL
OR CONSEQUENTIAL DAMAGES RESULTING FROM THE FURNISHING,
PERFORMANCE, OR USE OF THIS MATERIAL.
This guide contains information protected by copyright. No part of this guide may be photocopied or reproduced in any form without prior written consent from Compaq
Computer Corporation.
Ó 1998 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.
Compaq, Presario Registered U. S. Patent and Trademark Office.
Microsoft, MS-DOS, and Windows are registered trademarks of Microsoft Corporation.
Windows 95 is a trademark of Microsoft Corporation.
The software described in this guide is furnished under a license agreement or nondisclosure agreement. The software may be used or copied only in accordance with the terms of the agreement.
Product names mentioned herein may be trademarks and/or registered trademarks of their respective companies.
Maintenance and Service Guide
Compaq Presario 1800 Series Portable Computers
First Edition (Oct. 1998)
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Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
Removal & Replacement Procedures
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Preface
This is a troubleshooting guide that can be used for reference when servicing the Compaq Presario 1800 Series Portable Computers.
Compaq Computer Corporation reserves the right to make changes to the Compaq Presario 1800
Series Portable Computers without notice.
The following words and symbols mark special messages throughout this guide.
WARNING: Text set off in this manner indicates that failure to follow directions in the warning could result in bodily harm or loss of life.
CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage to equipment or loss of data.
IMPORTANT:
Text set off in this manner presents clarifying information or specific instructions.
NOTE:
Text set off in this manner presents commentary, sidelights, or interesting points of information.
WARNING: Only authorized technicians trained by Compaq should repair this equipment. All troubleshooting and repair procedures are detailed to allow only subassembly/module level repair. Because of the complexity of the individual boards and subassemblies, the user should not attempt to make repairs at the component level or to make modifications to any printed circuit board. Improper repairs can create a safety hazard. Any indications of component replacement or printed circuit board modifications may void any warranty
When requesting information or ordering spare parts, the computer serial number should be provided to Compaq. The serial number is located on the bottom of the computer.
The following documentation is available to support this product:
Compaq Presario 1800 Series Portable Computer documentation set
Service Training Guides
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Maintenance & Service Guide
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Removal & Replacement Procedures
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Product Description
Compaq
Presario
1800 Series
Series
Portable
Computer is a continuation of the new generation of multimedia portable computers with an innovative integrated design, outstanding audio and video, advanced core features, and attractive styling. This fullfunction,
Pentium II - based series of portable computers allows full desktop functionality and additional connectivity via the optional port replicator.
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Troubleshooting
This section covers troubleshooting information for the
Compaq Presario 1800 Series Portable Computers. The basic steps in troubleshooting include:
(POST).
3. Follow the recommended actions described in the diagnostic tables, if you are unable to run POST or if POST displays an error message.
.
When following the recommended actions in the Sections on POST
perform them in the order listed.
Rerun POST after each recommended action until the problem is solved and no error message occurs. Once the problem is solved, do not complete the remaining recommended actions.
NOTE:
If the problem is intermittent, check the computer several times to verify that the problem is solved.
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Illustrated Parts Catalog
This section provides an breakdown and identifies the spare parts ordering number associated with each item(s) for the Compaq Presario
1800 Series Portable Computers.
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Maintenance & Service Guide
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Removal & Replacement Procedures
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Removal and Replacement Procedures
This section explains the removal and replacement procedures for the computer.
Serial Number Location
Battery Pack
Palmrest
Cover with
Touch Pad
Audio Board
Report the computer serial number to Compaq when requesting information or ordering spare parts.
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Hardware DMA
DMA 0
DMA 1
DMA 2
DMA 4
System DMA
System Function
Audio Controller
Audio Controller
Diskette Drive
DMA Controller
I/O Address (Hex)
0000h-000Fh
0020h-0021h
0040h-0043h
0060h-0060h
0061h-0061h
0064h-0064h
0070h-0071h
0080h-0080h
0081h-008Fh
00A0h-00A1h
00C0h-00DFh
00ECh-00EFh
00F0h-00FFh
0170h-0177h
0170h-0177h
01F0h-01F7h
01F0h-01F7h
0201h-0201h
0220h-022Fh
02F8h-02FFh
0330h-0331h
0376h-0376h
0376h-0376h
0378h-037Fh
0388h-038Bh
03B0h-03BBh
03C0h-03DFh
03F0h-03F5h
03F6h-03F6h
03F6h-03F6h
03F7h-03F7h
03F8h-03FFh
04D0h-04D1h
0800h-0807h
0CF8h-0CFFh
2180h-218Fh
8000h-803Fh
FCD0h-FCD7h
FCD0h-FCDFh
FCD8h-FCDFh
FCE0h-FCFFh
System I/O Address
System Function (Shipping Configuration)
DMA Controller
Interrupt Controller
System timer
Keyboard Controller
System speaker
Standard 101/102-Key or Microsoft Natural
Keyboard
System CMOS/real time clock
Motherboard resources
DMA Controller
Programmable interrupt controller
DMA
Motherboard resources
Numeric data processor
Intel PCI Bus Master IDE Controller
Secondary IDE Controller (dual fifo)
Intel PCI Bus Master IDE Controller
Primary IDE Controller (dual fifo)
Gameport Joystick
ES1869 Plug and Play AudioDrive
Compaq Presario 56K-DF
ES1869 Plug and Play AudioDrive
Secondary IDE controller (dual fifo)
Intel PCI Bus Master IDE Controller
Printer Port (LPT1)
ES1869 Plug and Play AudioDrive
Video Controller
Video Controller
Standard Floppy Disk Controller
Intel PCI Bus Master IDE Controller
Primary IDE controller (dual fifo)
Standard Floppy Disk Controller
Communications Port (COM1)
Motherboard resources
ES1869 Control Interface
PCI bus
Motherboard resources
Motherboard resources
Primary IDE controller (dual fifo)
Intel PCI Bus Master IDEController
Secondary IDE controller (dual fifo)
Intel PCI to USB Universal Host Controller
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Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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Specifications
This chapter covers the following specifications of Compaq Presario 1800 Series Portable
Computers:
Dimensions
Height
Depth
Width
Weight
Model 1805
Model 1810
Stand-Alone (Battery Pack)
Power Requirements
Computer Specifications
U.S.
1.97 in
12.20 in
10.08 in
7.326 Ib
7.326 Ib
NiMH
Nominal Operating
Maximum Average
Peak Operating
AC Power Requirements
W @ 9.6 V
W @ 9.6 V
W @ 9.6 V
Metric
4.95 cm
31.00 cm
25.40 cm
3.33 kg
3.33 kg
Li-ion
W @ 14.4 V
W @ 14.4 V
W @ 14.4 V
Operating Voltage
Operating Current
Operating Frequency
Maximum Transient
100-240 V
0.8/0.4 A RMS
47-63 Hz
Meets IEC 801-4 and IEC801-5
1kV for 50 ns
Temperature
Operating
Nonoperating
Relative Humidity
(noncondensing)
50° to 95 °F
-4° to 140 °F
10° to 35 °C
-20° to 60 °C
Operating
Nonoperating (tw = 38.7°C max)
Altitude
Operating
10 to 90%
5 to 95%
35°C to 90%
60°C to 95%
Nonoperating
Shock
Operating
Non operating
0 to 10,000 ft
0 to 30,000 ft
10 G, 11 ms, half sine
240 G, 2 ms, half sine
0 to 3.15 km
0 to 9.14 km
Vibration
Operating
Nonoperating
0.5 G
1.5 G
NOTE: Applicable product safety standards specify thermal limits for plastic surfaces.
Compaq Presario 1800 Series Portable Computers operate well within this range of temperatures.
IRQ7
IRQ8
IRQ9
IRQ9
IRQ9
IRQ9
IRQ9
IRQ9
IRQ11
Hardware IRQ
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ11
IRQ12
IRQ13
IRQ14
IRQ14
IRQ15
IRQ15
System Interrupts
System Function
Timer Interrupt
Keyboard
Interrupt Controller Cascade
Internal Modem
Communication Port (COM1)
Audio Controller
Diskette Drive
Parallel Port (LPT 1) (default)
System CMOS/Real-Time Clock
IRQ Holder for PCI Steering
PCI-1131 CardBus Controller
IRQ Holder for PCI Steering
IRQ Holder for PCI Steering
PCI-1131 CardBus Controller
Video Controller
Intel PCI to USB Universal Host Controller
IRQ Holder for PCI Steering
PS/2 TouchPad/Mouse
Numeric data processor
Intel PCI Bus Master IDE Controller
Primary IDE Controller (dual fifo)
Intel PCI Bus Master IDE Controller
Secondary IDE Controller (dual fifo)
Memory Address
00000000h-0009FFFFh
000A0000h-000AFFFFh
000B0000h-000BFFFFh
000C0000h-000CBFFFh
000DC000h-000FFFFFh
00100000h-03FFFFFFh
05000000h-05000FFFh
05001000h-05001FFFh
80000000h-803FFFFFh
FD000000h-FDFFFFFFh
FEA00000h-FEBFFFFFh
FED00000h-FEDFFFFFh
FFF80000h-FFFFFFFFh
System Memory Catalog
System Function
System board extension for PnP BIOS
Graphics Controller
Graphics Controller
Graphics Controller
System board extension for PnP BIOS
System board extension for PnP BIOS
PCI-1131 CardBus Controller
PCI-1131 CardBus Controller
Intel Pentium(r) II Processor to PCI bridge
Graphics Controller
Graphics Controller
Graphics Controller
Motherboard resources
13.3" (Diagonal) TFT Display
U.S.
Dimensions
Height
Width
Display Dimensions
Width
Height
Depth
Information not available
Information not available
Weight
Contrast Ratio
Brightness
Total Power Consumption
Information not available
Information not available
Information not available
Information not available
Metric
Information not available
Information not available
Information not available
Information not available
Information not available
Information not available
System Memory
32-MB
32-MB
32-MB
Memory Expansion
Expansion Board
Memory
16-MB
32-MB
64-MB
Total Memory
48-MB
64-MB
96-MB
Diskette Drive
Capacity per Diskette (High/Low)
Information not available
Diskette Size
Number of LED Indicators
(Read/Write)
Information not available
Information not available
Number of Drives Supported
Drive Rotation (rpm)
Transfer Rate (Kbps)
Bytes per Sector
Information not available
Information not available
Information not available
Information not available
Sectors per Track (High/Low)
Tracks per Side (High/Low)
Access Times
Information not available
Information not available
Information not available
Track-to-Track (ms)
Average (ms)
Setting Time (ms)
Latency Average (ms)
Cylinders (High/Low)
Number of Read/Write Heads
Information not available
Information not available
Hard Drives
Drive Type
3.2-GB
Capacity Per Drive
Information not available
Information not available
4.0-GB
Information not available
Information not available
Information not available
Information not available
Logical
Configuration
Cylinders
Heads
Sectors per track
Bytes per sector
Seek Times
(Typical, Including settling in ms)
Single track
Average
Full stroke
Transfer Rate
At interface
Information not available
Information not available
Information not available
Information not available
6.4-GB
Information not available
Information not available
Information not available
Information not available
Information not available
Dimensions
Weight
Rotational Speed
Typical Transfer Rate
Sustained Data Transfer Rate
Access Time
Average Random Access Time
Spin Up time
Data Buffer Capacity
DVD Drive
DVD Drive
Information not available
Information not available
Information not available
Information not available
Information not available
Information not available
Information not available
Dimensions
Weight
Rotational Speed
Typical Transfer Rate
Sustained Data Transfer Rate
Access Time
Average Random Access Time
Spin Up time
Data Buffer Capacity
CD Drive
24× CD Drive
Information not available
Information not available
Information not available
Information not available
Information not available
Information not available
Information not available
Dimensions
Height
Length
Width
Weight
Battery Pack Operating
Time
Energy
Nominal Open Circuit Voltage
Capacity
Power
Battery Pack
Nickel Metal Hydride (NiMH) Lithium Ion (Li ion) *
0.8 in (20.3 mm)
5.7 in (145 mm)
3.1 in (78.7 mm)
1.01 Ib (458.1 g)
2:30 hr
9.6 V
3200mAH
40 W
0.8 in (20.3 mm)
5.7 in (145 mm)
3.1 in (78.7 mm)
0.90 Ib (408.2 g)
3:00 hr
14.4 V
2500mAH
40 W
Environmental
Requirements
Operating Temperature
Non-operating Temperature
Charging Temperature
32° F (0-50° C)
-20° C -60° C
5° C-45° C
32° F (0-50° C)
-20° C -60° C
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Maintenance & Service Guide
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Models: 1805 and 1810
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Connector Pin Assignments
This appendix provides connector pin assignment tables for Compaq Presario 1800
Series Portable Computers. For more information on connectors, refer to the section on
NOTE: The signals in all tables of this appendix are considered active high unless otherwise indicated by an asterisk (*).
Parallel Connector
6
7
4
5
2
3
Pin
1
Signal
Strobe*
Data Bit 0
Data Bit 1
Data Bit 2
Data Bit 3
Data Bit 4
Data Bit 5
8
9
Data Bit 6
Data Bit 7
* = Active low
Connector
13
14
15
16
Pin
10
11
12
Signal
Acknowledge*
Busy
Paper Out
Select
Auto Linefeed*
Error*
Initialize Printer*
17 Select In*
18-25 Signal Ground
Connector
Serial Connector
Pin
1
Signal
Carrier Detect
2
3
Receive Data
Transmit Data
6
7
4
5
Data Terminal Ready
Signal Ground
Data Set Ready
Ready to Send
8 Clear to Send
9 Ring Indicator
Keyboard/Mouse
Pin Signal
1 Data
2 Not defined
5
6
3
4
Ground
+5 VDC
Clock
Not defined
Connector
Connector
External VGA Monitor
Pin Signal
1 Red Analog
2 Green Analog
5
6
3
4
Blue Analog
Not connected
Ground
Ground Analog
11
12
13
14
15
7
8
9
10
Ground Analog
Ground Analog
Not connected
Ground
Monitor Detect
DDC2B Data
Horizontal Sync
Vertical Sync
DDC2B Clock
Universal Serial Bus
Pin Signal
1
Ground
2 D+
3 D-
4 Power
Port Replicator
6
7
4
5
2
3
Pin Signal
1 N.C.
N.C.
Kb Clk 1
Kb Data 1
Pin Signal
21
22
23
Joystick Data A 24
25
Printer Data 1
Printer Data 2
Printer Data 3
Printer Data 4
Pin Signal
Printer Data 0 41
42
43
44
45
N.C.
N.C.
Switch A
Switch B
Switch C
Joystick Data B 26 Printer Data 5 46 Switch D
Kb Clk 2 27 Printer Data 6 47 N.C.
8
9
Joystick Data C 28 Printer Data 7 48 MIDI In
Kb Data 2 29 USB 0 49 MIDI Out
10 Joystick Data D 30 USB 0 +
11 Lp Select In 31 USB 1 -
50
51
+5V
+5V
12 Lp Paper End 32 USB 1+
13 Lp Initialize 33 Adapter In
14 Lp Busy
15 Lp Error
34
35
Adapter In
Adapter In
52
53
54
55
N.C.
N.C.
N.C.
N.C.
16 Lp Ack
17 Lp Auto Feed
18 Lp Strobe
19 DDC2BC
20 DDC2BD
36 Adapter In
37 Adapter In
38 Adapter In
39 N.C.
40 N.C.
56 Dock ID -
57 RXD
58 Lp Select
59 RI
60 DTR
Connector
4
5
6
2
3
Modem
Pin Signal
1 Unused
Unused
Tip
Ring
Unused
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Pin Signal
61 CTS
62 DCD
63 DSR
64 TXD
65 RTS
66 N.C.
67 Detect
68 N.C.
69 V. Sync
70 Ground
71 H. Sync
72 Ground
73 Blue
74 Ground
75 Green
76 Ground
77 Red
78 Ground
79 N.C.
80 N.C.
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Battery Pack Operating Time
This appendix covers the following information concerning battery pack operating time:
Increase battery pack operating time
Conditioning a battery pack
Disposal of a used battery pack
Battery pack operating time differs depending on several variables. To avoid unnecessary replacement, consider the following variables when determining how long a charged battery pack should last:
Power management settings
Hardware configuration
Software applications
Installed options
Display brightness
Hard drive usage
Changes in operating temperature
Type and number of installed PC Cards
NOTE:
The power consumption requirements for PC Cards vary widely. Some cards drain the battery pack very rapidly.
Battery pack operating time can be increased by as much as 50 percent by controlling the energy required by the computer and the energy stored in the battery pack.
To minimize the energy required by the computer, follow these steps:
Set the power conservation levels in the Power Management utility to Maximum.
Customize the timeout value to work more efficiently with the applications. The amount of battery life depends on the values selected.
To maximize the energy stored in the battery pack, follow these guidelines:
Condition the battery pack at least every 30 days to improve overall battery performance.
Keep a battery pack in the computer when using it with AC power to supply the battery pack with a constant trickle charge.
Store the battery pack in a cool, dry place when not in use.
CAUTION: To avoid a loss of data, ensure that all data is saved before discharging a battery pack.
To condition a battery pack, complete the following steps:
1. Plug in the AC adapter and allow the battery to charge until the fast charge arrow on the display disappears. Your battery gauge may read 100 percent for a period of time before the arrow disappears. Do not unplug the AC adapter until the arrow disappears.
2. Unplug the AC adapter and allow the battery to drain until the computer reaches hibernation and turns itself off. Do not plug in the AC adapter during this process
or you will need to restart with Step No. 1. You may use the computer while the battery is draining.
3. Your battery is re- conditioned.
4. Plug in the AC adapter and begin using the computer.
The table below shows battery pack charge times by model.
Computer
Model 1/NiMH Battery Pack
Model 2/Li ion Battery Pack
Battery Charge Time
On Line
4.0 hours premature termination
4.5 hours premature termination
Off Line
2:00 hr
2:50 hr
In the interest of safeguarding our environment. Compaq Computer Corporation recommends that nickel metal hydride (NiMH) and lithium ion (Li ion) battery packs be recycled. Battery packs should be handled in accordance with country, state, province, or local regulations.
CAUTION: Never attempt to open or service a battery pack. Opening a battery pack not only damages the pack and makes it unusable, but also expose potentially harmful battery components.
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Models and Features
Display
Processor
Hard Drive
CD Drive
Modem
Compaq Presario 1800 Series
Portable Computer Models
Model
1805
13. 3" TFT
Model
1810
13. 3" TFT
Pentuim II/266
MMX
Pentuim II/300
MMX
3.2-GB or 4.0-GB 6.4-GB or 4.0-GB
24× MAX DVD Drive
M++ 56.0 Kbps or
K-56.0 Kbps with
ITU V.90
M++-56.0 Kbps or
K-56.0 Kbps with
ITU V.90
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Controls and Lights
Front of Unit
1. Display 9.DVD/CD
Previous
Track
2. Power
(On/Off)
Button
10.
DVD/CD
Next
Track
11.
Keyboard
3.
DisqPlay
Switch
4.Volume
Control
Down
Button
12. Touch
Pad
5. Volume
Control Up
Button
13. Left
Touch Pad
Button
6. Status
Panel
7.
DVD/CD
Play/Pause
8.
DVD/CD
Stop
14. Right
Touch Pad
Button
15.
Integrated
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Left Side Components
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1.
Modem
Jack
2.
Diskette
Drive
Slot
3.
Diskette
Eject
Button
4.
Battery
Pack
5. Left
Speaker
Port
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1.
Headphone
Out
6. CD or DVD
Manual Eject
Hole
2.Line-In Jack 7. PCMCIA
(Top Slot)
3. External
Microphone
Jack
4. CD or DVD
Drive
5. CD or DVD
Eject Button
8.PCMCIA
(Bottom Slot)
9.PCMCIA
Eject Levers
10. Right
Speaker Port
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Bottom of Unit
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1. Memory
Compartment
2.
Feet
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1.Keyboard/Mouse
Port
2. Parallel Printer
Port
6. External Monitor
Port
7. USB
3. Port Replicator 8. AC Adapter
4. Fan Exhaust
5. Serial Port
9. Security Slot
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This section is an overview of the Compaq Presario 1800 Series Portable
Computer Port Replicator and covers the following topics:
Port Replicator Rear Connectors
80-Pin Connectors
System Overview
A manual docking mechanism on the Compaq Presario 1800 Series Portable
Computer Port Replicator docks Compaq Presario 1800 Series Portable
Computers. When the computer is docked, the 80-pin external options connector handles the entire electrical interface (both power and signal connections) between the computer and the Port Replicator Rear.
Features
The Compaq Presario 1800 Series Portable Computer Port Replicator provides all the connectors supported by the Compaq Presario 1800 Series Portable
Computers. They include:
External keyboard
External mouse
MIDI/game port
External monitor
Serial
Parallel
AC Adapter
Dual USB ports (Not supported on all models.)
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Power Management for Windows 98
The following power management features are available for conserving AC power and extending battery operating time:
Power Management Settings
Servicing Your Computer - Full Off Mode
Depending on your patterns of computer use, you can set different levels of power management.
These different power management levels can be activated based on the amount of time passed since the last system activity. System activity examples, include keyboard or mouse movement,
CD (while under program control that monitors Sleep), and modem use.
You can select different conditions or power schemes through Power Management..The optional settings are Home/Office Desk, Portable/ Laptop and Always On. From the default settings, you can change the following settings. the System goes to Sleep (Standby) mode the screen times out and goes blank the hard drive spins down
Each of these system components will go to sleep after the selected or default periods of inactivity.
(The setting for hard drive must be less than or equal to the setting for System.)
IMPORTANT:
If you're on a network, it's recommended that you set System Standby to
Never.
There are five categories of power management settings under the Control Panel. The default setting for each feature is listed below in the tables.
Tab: Power Schemes: Plugged in
Always on System
Standby:
Turn OFF Monitor
Always on System
Standby:
Never
After 15 minutes
After 15 minutes
Running on
Batteries
15 minutes
After 10 minutes
After 10 minutes
Tab: ALARMS::
Low Battery Alarm: 10%
Critical Battery Alarm 0%
Alarm Actions: X Display Message Notification
Text Action No Action
Tab: POWER METER:
Tab: ADVANCED
Default
Default
Tab: POWER METER: Monitor Laptop Display (Maximum resolution according to unit display size)
Tab: Device Manager
Default:
Disk Drives:
CD ROM:
X DMA
X DMA
You can select Sleep mode instead of turning off the computer when you have finished using it.
This allows the computer to wake up faster than turning it completely off and saves power over the active (On) mode. Compaq Presario Notebook computers have two levels of sleep, Hibernation and
Sleep.
Hibernation - by pushing the power button once your computer will perform a save to disk followed by a shut down of the computer into Off mode.
Sleep - is a low power mode, also referred to as Standby mode. While in Sleep mode, your computer will maintain system information and open files. Unsaved information will be lost if you turn off your system prior to system wake-up, or if you lose power while using the AC adapter.
CAUTION:
While in Sleep mode, your computer will maintain system information and open files. Unsaved information will be lost if you turn off your system prior to system wakeup, or if you lose power while using the AC adapter
.
Hibernation helps conserve battery life and protects your data. Hibernation can be a routine power saving event, or can be the result of a low battery condition. As it enters Hibernation, your computer will display a progress screen, as it automatically saves the machine state before it shuts down and turns itself off. Your computer will automatically go into Hibernation, when the battery has little power left, or when the system (operating on battery power) has been in Sleep mode for more than an hour. You can also manually initiate Hibernation by pressing the power button once while the system is active. To restore the computer's previous state, simply press the power button once again. While waking up, the computer will display a progress screen.
The following table shows the conditions and indicators for getting in and out of the various power management modes, Sleep, Hibernation and Off.
Mode
Sleep
Hibernate
To Initiate
Manual keys combination
- Fn+F4
To End
Time Out
Default 15 minutes. If on
Battery power
(system will not go to Sleep if on AC power)
Manual - Press
Power Button once
Press Power
Button once
Indicators
Press any key Flashing green
Power LED
No Power LED, blank screen
Off
Time Out
Default If low battery or after
1 hour of sleep
(system will not
Hibernate if on
AC power)
Perform normal
Windows shutdown via the start button, or press and hold down the power button for 4 seconds
Press Power
Button once
No Power LED, blank screen
If you need to install or replace components in your system, you must turn the computer off
. Follow the instructions above for properly putting the computer into Off mode, unplug from the outlet and remove the battery (see battery section for instruction on removing battery).
Occasionally you may encounter a frozen keyboard or a locked screen. To reboot your computer
(as if from a cold start) press and hold down the Power Button for at least four seconds, which will cause a manual shutdown. Then, restart it with a single press of the Power Button. If it still doesn't recover, press the Power Button and hold it for four seconds to shut it down, then, remove the battery or unplug the AC power for at least 30 seconds. Reinsert the battery or reconnect AC power and press the Power Button once to reboot.
Battery operating time is affected by variables, such as the following:
Power conservation settings
Hardware configuration
Software applications
Installed options
Display brightness
Hard drive usage
Power button
Changes in operating temperature
Type and number of installed PC Cards
For more information on increasing battery pack operating time, conditioning the battery pack, and disposing of a used battery pack, refer to the
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Preliminary Steps
Before running
, complete the following preliminary steps:
1. If a power-on password has been established, type the password and press the Enter key. If the password is not known,
2. Run
3. Turn off the computer and its external devices.
4. Disconnect any external devices that you do not want to test. Do not disconnect the printer if you want to test it or use it to log error messages.
IMPORTANT:
If the problem only occurs when an external device is connected to the computer, the problem may be related to the external device or its cable. Verify this by running POST with and without the external device connected.
5. Install loopback plugs in the serial and parallel connectors if you would like to test these ports.
6. Ensure the hard drive is installed in the computer.
7. Ensure that the battery pack is inserted in the computer and the computer is connected to an external AC power source.
When the preliminary steps are completed, you are ready to run
.
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Power-On Self Test (POST)
To run POST, complete the following steps:
Turn off the computer, then turn on the computer.
If POST does not detect any errors, the computer will not beep. This indicates successful completion of POST test. POST has run successfully and boots from the hard drive (or from a bootable diskette if one is installed in the diskette drive).
If POST detects errors, the errors are indicated by screen and/or audible messages. Refer to
"Power-On Self-Test (POST) Codes" in the tables for a list of POST codes and their relevant descriptions.
NOTE:
If the system is not functioning well enough to run POST, or if the display is not functioning well enough to show POST error messages, refer to the Troubleshooting tables.
Probable Cause
DMA, timers, etc.
Probable Cause
Configuration incorrect
CMOS reflects that an invalid configuration has been set.
RAM failure
Memory test data error
XX000YZZ RAM failure
Power-On Self-Test Messages
102-System Board Failure
Recommended Action
Replace the system board.
162-System Options Not Set
Recommended Action
Run Computer Setup.
Run Computer Setup.
1. Replace the memory modules.
2. Replace the system board.
1. Replace the memory modules.
2. Replace the system board.
Replace the system board.
Probable Cause
Probable Cause
Keyboard failure
XX000YZZ 201-Memory Error
Recommended Action
301-Keyboard Error
Recommended Action
1. Ensure the keys are not depressed during POST.
2. Reconnect the keyboard with the computer off.
3. Replace the keyboard.
304-Keyboard or System Unit Error
Probable Cause
Keyboard or system board error
Recommended Action
1. Replace the keyboard.
2. Replace the TouchPad or mouse.
Probable Cause
Mismatch in drive type or failure in the diskette controller
3. Replace the system board.
601-Diskette Controller Error
Recommended Action
1. Run Computer Checkup (TEST).
2. Check and/or replace cables.
Probable Cause
Mismatch in drive type
Probable Cause
Disk 0 failed to respond
3. Replace the system board.
605-Diskette Drive Error
Recommended Action
Run Computer Setup.
1780-Primary Hard Drive 0 Failure
Recommended Action
1. Run Computer Checkup (TEST).
Hard drive format error
Probable Cause
Hard drive controller failure
2. Replace the hard drive.
1. Run Computer Checkup (TEST).
2. Replace the hard drive.
1782-Hard Drive Controller
Recommended Action
1. Run Computer Setup.
2. Replace the hard drive.
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Clearing the Power-on Password
Clearing the power-on password requires removing all Setup attributes that are programmed in the CMOS.
If the password is not known, clear it by performing the following steps:
1. Turn off the computer.
2. Disconnect the power cord.
3. Remove the battery pack.
4. Remove the keyboard.
5. Remove the RTC battery for
30 seconds. The password, together with other Setup attributes, will be cleared.
6. Reassemble the computer.
7. Turn on the computer to verify that the power-on password has been cleared. If it has not been cleared, repeat Steps 1 through
7.
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Compaq Diagnostics
Compaq Diagnostics is installed on the hard drive of the computer. Run the
Diagnostics utilities when you want to view or test system information and if you have installed or connected devices. If you run Compaq Diagnostics from a diskette, ensure that it is version 10.11 or later.
The Diagnostics menu includes the following utilities:
View System Information (INSPECT)
Prepare Computer for a Compaq Service Call (RemotePaq)
If you have a problem you cannot solve, run the Diagnostics utilities before you call for support. Run Computer Checkup and select to save the device list to a file and to print or to save the log of errors. Run the View System
Information (INSPECT) utility and select to print or to save that information.
Have the files or the printed information available when you call for support.
Computer Checkup (TEST) determines whether the various computer components and devices are recognized by the system and are functioning properly. You can display, print, or save the information generated by
Computer Checkup.
Follow these steps to run Computer Checkup:
1. Plug the computer into an external power source. (A low battery condition could interrupt the program.)
2. Turn on the external devices that you want to test. Connect the printer if you want to print a log of error messages.
3. Insert the Compaq Diagnostics diskette in drive A.
4. Turn on or restart the computer. The computer starts from drive A, and the
Diagnostics Welcome screen appears.
5. Press Enter to continue. The Diagnostics menu appears.
6. Select Computer Checkup from the Diagnostics menu. A Test Option menu appears.
7. Select View the Device List from the Test Option menu. A list of the installed Compaq devices appears.
8. If the list of installed devices is correct, select OK. The Test Option menu appears.
NOTE:
If the list is incorrect, ensure that any new devices are installed properly.
9. Select one of the following from the Test Option menu:
Quick Check Diagnostics. Runs a quick, general test on each device with a minimal number of prompts. If errors occur, they display when the testing is complete. You cannot print or save the error messages.
Automatic Diagnostics. Runs unattended, maximum testing of each device with minimal prompts. You can choose how many times to run the tests, to stop on errors, or to print or save a log of errors.
Prompted Diagnostics. Allows maximum control over testing the devices.
You can choose attended or unattended testing, decide to stop on errors, or choose to print or save a log of errors.
10. Follow the instructions on the screen as the devices are tested. When testing is complete, the Test Option menu appears.
11. Exit the Test Option menu.
12. Exit the Diagnostics menu.
The View System Information (INSPECT) utility provides information about the computer and installed or connected devices. You can display, print, or save the information.
Follow these steps to run View System Information (INSPECT) from the
Compaq Diagnostics diskette:
1. Turn on the external devices that you want to test. Connect the printer if you want to print the information.
2. Insert the Compaq Diagnostics diskette in drive A.
3. Turn on or restart the computer. The computer starts from drive A, and the
Diagnostics Welcome screen appears.
4. Press Enter to continue. The Diagnostics menu appears.
5. Select View System Information (INSPECT) from the Diagnostics menu.
6. Select the item you want to view from the following list:
System
ROM
Keyboard
System ports
System storage
Graphics
Memory
Audio
Operating system
System files
Windows files
7. Follow the instructions on the screen to cycle through the screens, to return to the list and choose another item, or to print the information.
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ontacting Compaq Support
Obtain the following information before contacting Compaq Reseller Support:
Product name
Product serial number
Purchase date
Conditions under which the problem occurred
Any error messages that have occurred
Hardware configuration
Type of printer connected
Hardware/software being used
Printed result of Computer Checkup (TEST)
Printed copies of and files, if possible
To ship the computer, complete the following steps:
1. Back up the critical hard drive files. Ensure that backup tapes/diskette are not exposed to electrical or magnetic fields while stored in transit.
2. Turn off the computer and external devices.
3. Disconnect the external devices from their power sources, then from the computer.
IMPORTANT:
Ensure that there is no diskette in the diskette drive and that there are no PC Cards in the PC slots.
4. Close the display and all exterior doors of the computer.
5. Pack the computer with sufficient packing material to protect it. Use the original packing box or similar packaging.
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3301-xx
3305-xx
6600-xx
6605-xx
6608-xx
6623-xx
2431-xx
2432-xx
2448-xx
2451-xx
2456-xx
2458-xx
2468-xx
2477-xx
2478-xx
2480-xx
2416-xx
2418-xx
2419-xx
2421-xx
2422-xx
2423-xx
2424-xx
2425-xx
Diagnostic Error Codes
Diagnostic error codes occur if the system recognizes a problem while running the Compaq
Diagnostic program. These error codes help identify possibly defective subassemblies.
The following tables list error codes, a description of the error condition, and the action required to resolve the error condition.
IMPORTANT:
Retest the system after completing each step. If the problem has been resolved, do not proceed with the remaining steps.
For the removal and replacement of a particular subassembly, see
.
Select error codes by number or type:
t
Touch Pad Pointing Device Test
Processor Test Error Codes
Error
Code
101-xx
102-xx
103-xx
104-xx
105-xx
106-xx
107-xx
108-xx
109-xx
110-xx
113-xx
114-01
200-xx
202-xx
203-xx
204-xx
211-xx
214-xx
215-xx
300-xx
301-xx
Description
CPU test failed
Coprocessor or Weitek Error
Recommended Action
Replace the processor and retest.
1. Run the Configuration and Diagnostics
Utilities.
2. Replace the processor board and retest.
Replace the system board and retest. DMA page registers test failed
Interrupt controller master test failed
Port 61 error
Keyboard controller self-test failed
CMOS RAM test failed
CMOS interrupt test failed
CMOS clock test failed
Programmable timer load data test failed
Protected mode test failed
Speaker test failed 1. Check system configuration.
2. Verify cable connections to speaker.
3. Replace the system board and retest.
Memory Test Error Codes
Memory machine ID test failed
Memory system ROM checksum failed
Write/Read test failed
Address test failed
Random pattern test failed
Noise test failed
Random address test failed
1. Flash the system ROM and retest.
2. Replace the system board and retest.
1. Remove the memory module and retest.
2. Install a new memory module and retest.
Failed ID Test
Keyboard Test Error Codes
Failed Selftest/Interface Test
1. Check the keyboard connection. If disconnected, turn off the computer and connect the keyboard.
302-xx Failed Individual Key Test
2. Replace the keyboard and retest.
304-xx
401-xx
402-xx
403-xx
600-xx
601-xx
602-xx
603-xx
Failed Keyboard Repeat Test
3. Replace the system board and retest.
Printer failed or not connected
Failed Port Test
Parallel Printer Test Error Codes
Printer pattern test failed
1. Connect the printer.
2. Check power to the printer.
3. Install the loop-back connector and retest.
4. Check port and IRQ configuration.
5. Replace the system board and retest.
Diskette format failed
Diskette read test failed
Diskette Drive Test
Diskette ID drive types test failed
1. Replace the diskette media and retest.
2. Check and/or replace the diskette power and signal cables and retest.
3. Replace the diskette drive and retest.
4. Replace the system board and retest.
Diskette write, read, compare test failed
Diskette random read test failed
Diskette ID media failed
Diskette speed test failed
Diskette reset controller test failed
Diskette change line test failed
Diskette type error
604-xx
605-xx
606-xx
609-xx
610-xx
697-xx
698-xx
699-xx
1101-xx
1701-xx
1702-xx
1703-xx
1704-xx
1705-xx
1706-xx
1707-xx
1708-xx
1709-xx
1710-xx
1715-xx
1716-xx
506-xx
507-xx
508-xx
Diskette drive speed not within limits
Diskette drive/media ID error
Serial port test failed
1. Replace media.
2. Run the Configuration and Diagnostics
Utilities.
Serial Test Error Codes
1. Check port configuration
2. Replace the system board and retest.
Hard drive write/read/compare test failed
Hard Drive Test Error Codes
Hard drive format test failed
Hard drive read test failed
Hard drive random seek test failed
1. Run the Configuration and Diagnostics
Utilities and verify drive type.
2. Verify that all secondary drives have secondary drive capability.
3. Replace the hard drive and retest.
4. Replace the system board and retest.
Hard drive controller test failed
Hard drive ready test failed
Hard drive recalibration test failed
Hard drive format bad track test failed
Hard drive reset controller test failed
Hard drive park head test failed
Hard drive head select test failed
Hard drive conditional format test failed
1717-xx
1719-xx
1724-xx
Hard drive ECC* test failed
Hard drive power mode test failed
Network preparation test failed
1736-xx Drive monitoring test failed
* ECC = Error Correction Code
501-xx
502-xx
503-xx
504-xx
505-xx
Video Test Error Codes
Video controller test failed
Video memory test failed
The following apply to error codes 501-xx through 516-xx:
Video attribute test failed
Video character set test failed
Video 80 × 25 mode 9 × 14 character cell test failed
1. Disconnect external monitor and test with internal LCD display.
2. Replace the display assembly and retest.
3. Replace the system board and retest.
Video 80 × 25 mode 8 × 8 character cell test failed
Video 40 × 25 mode test failed
Video 320 × 200 mode color set 0 test failed
509-xx
510-xx
511-xx
512-xx
514-xx
516-xx
2402-xx
2403-xx
2404-xx
2405-xx
2406-xx
2408-xx
2409-xx
2410-xx
2411-xx
2412-xx
2414-xx
Video 320 × 200 mode color set 1 test failed
Video 640 × 200 mode test failed
Video screen memory page test failed
Video gray scale test failed
Video white screen test failed
Video noise pattern test failed
Video memory test failed The following steps apply to error codes
2402-xx through 2456-xx:
Video attribute test failed
Video character set test failed
Video 80 × 25 mode 9 × 14 character cell test failed
Video 80 × 25 mode 8 × 8 character cell test failed
1. Run the Configuration and Diagnostics
Utilities.
2. Replace the display assembly and retest.
3. Replace the system board and retest.
Video 320 × 200 mode color set 0 test failed
Video 320 × 200 mode color set 1 test failed
Video 640 × 200 mode test failed
Video screen memory page test failed
Video gray scale test failed
Video white screen test failed
3206-xx
8601-xx
8602-xx
Video noise pattern test failed
ECG/VGC memory test failed
ECG/VGC ROM checksum test failed 1. Run the Configuration and Diagnostics
Utilities.
ECG/VGC 640 × 200 graphics mode test failed
ECG/VGC 640 × 350 16 color set test failed
2. Disconnect external monitor and test with internal LCD display.
3. Replace the display assembly and retest.
4. Replace the system board and retest.
ECG/VGC 640 × 350 64 color set test failed
ECG/VGC monochrome text mode test failed
ECG/VGC monochrome graphics mode test failed
640 × 480 graphics test failure
320 × 200 graphics (256 color mode) test failure
Advanced VGA Controller test failed
132-column Advanced VGA test failed
Advanced VGA 256 Color test failed
Advanced VGA BitBLT test
Advanced VGA DAC test
Advanced VGA data path test
The following step applies to error codes
2458-xx through 2480-xx:
Replace the system board and retest.
Advanced VGA BitBLT test
Advanced VGA LineDraw test
Audio Test Error Codes
Audio System Internal Error Replace the system board and retest.
TouchPad/Pointing Device Interface Test Error Codes
Mouse test failed 1. Replace the TouchPad and retest.
2. Replace the system board and retest.
Interface test failed
CD/DVD Drive Test Error Codes
CD/DVD drive read test failed
CD/DVD drive seek test failed
ID test failed
1. Replace the CD/DVD and retest.
2. Verify that the speakers are connected.
3. Verify that drivers are loaded and properly installed.
4. Replace the CD/DVD drive and retest.
5. Replace the system board and retest.
Read test failed
Controller test failed
Random read test failed
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Troubleshooting Without Diagnostics
This section provides information about how to identify and correct some common hardware, memory, and software problems. It also explains several types of common messages that may be displayed on the screen. The following pages contain troubleshooting information on:
Since symptoms can appear to be similar, carefully match the symptoms of the computer malfunction against the problem description in the Troubleshooting tables to avoid a misdiagnosis.
WARNING: To avoid a potential shock hazard during troubleshooting procedures, disconnect all power sources before removing the keyboard cover or the display bezel.
Verify that cables are connected properly to the suspected defective parts.
Run Computer Setup after connecting external devices.
Verify that all required device drivers are installed.
Verify that all required changes have been made to the file.
Verify that all required changes have been made to the file.
Verify that all printer drivers have been installed for each application.
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Solving Minor Problems
Some minor problems and possible solutions are outlined in the following tables. If the problem appears related to a software application, check the documentation provided with the software.
Some common audio problems and solutions are listed in the following table.
Problem
Computer does not beep after the Power-On
Self-Test (POST).
Solving Audio Problems
Probable Cause
This is typical; it indicates successful completion of the Power-On Self-Test
(POST).
Solution(s)
No action is required.
Some common causes and solutions for battery pack problems are listed in the following table. The
"Solving Power Problems" section in this chapter may also be applicable.
Solving Battery Pack and Battery Gauge Problems
Problem
Computer won't turn on when battery pack is inserted and power cord is unplugged.
Probable Cause
Battery pack is discharged.
Solution(s)
Connect the computer to an external power source and charge the battery pack.
Computer is beeping and battery LED icon is blinking.
Battery charge is low.
Replace the battery pack with a fully charged battery pack.
Check the battery connectors on the system board to verify they are evenly spaced and that they are not bent or broken.
Immediately save any open file(s). Then do any one of the following:
Connect the computer to an external power source to charge the battery pack.
Turn off the computer or initiate
Hibernation until you can find another power source or charge the battery pack.
Computer battery LED icon (front on the unit) blinks to indicate low battery condition, but computer does not beep.
Battery LED icon doesn't light and battery pack won't fast charge.
Volume is turned down too low.
Battery pack is already charged.
Battery pack was exposed to temperature extremes.
Battery pack is at end of its life.
You have to set the date and time every time you turn on the computer.
RTC battery is dead.
Adjust the volume.
No action is necessary.
Allow time for the battery pack to return to room temperature.
Replace battery pack.
Replace the RTC battery.
Problem
Battery charge does not last as long as expected.
Battery pack is warm to the touch after charging.
Battery pack operating time is far less than the documented average operating time.
Probable Cause
Battery is being exposed to high temperatures or extremely cold temperatures.
Solution(s)
Keep the battery pack within the recommended operating temperature range 50° F to 104° F (10° C to 40° C) or recommended storage range
-4° F to 86° F (-20° C to 30° C ).
Recharge the battery pack.
Battery has partially self-discharged.
Power management is disabled.
Recharge the battery. Discharge the battery completely and then recharge it.
Set a power management level in
Computer Setup.
An external device or PC Card is draining the battery.
Turn off or disconnect external devices when not using them.
No action is required.
Normal warming has occurred due to charging.
Power management is turned off or disabled.
Enable power management in Computer
Setup and in Windows Power Properties.
An external device or PC Card is draining the battery.
Turn off or disconnect external devices when not using them.
Battery pack has partially selfdischarged.
Condition the battery pack by fully charging, fully discharging, then fully recharging it.
Battery pack is being exposed to high temperatures or extremely cold temperatures.
To maintain the charge, leave battery packs in the computer when it is connected to external power.
If the computer is disconnected from external power for more than two weeks, remove battery packs from the computer to reduce the discharge rate.
Keep the battery pack within the recommended temperature ranges.
Operating: 50° F to 104° F
(10° C to 40° C)
Storage: -4° F to 86° F
(-20° C to 30° C )
Recharge the battery pack.
Some common causes and solutions for CD/DVD drive problems are listed in the following table.
Problem
CD/DVD drive cannot read a compact disc or digital versatile disc.
Solving CD/DVD Drive Problems
Probable Cause
Compact disc or digital versatile disc is upside down or is improperly inserted in the CD/DVD drive.
Solution(s)
Open the CD/DVD loading tray, lay the compact disc or digital versatile disc in it
(label side up), then close the tray.
CD is CD Plus or Pregap/Track 0 type. Cannot read these type CDs in 24x.
Remove the CD.
Some common causes and solutions for diskette and diskette drive problems are listed in the following table.
Solving Diskette and Diskette Drive Problems
Problem
Diskette drive cannot write to a diskette.
Probable Cause
Diskette is write-protected.
Solution(s)
Disable the diskette's writeprotect feature or use a diskette that is not writeprotected.
Computer is writing to the wrong drive.
Not enough space is left on the diskette.
Drive error has occurred.
Check the drive letter in the path statement.
Use another diskette.
Diskette is not formatted.
Run Computer Checkup from the Compaq Diagnostics diskette.
Format the diskette. At the system prompt, enter
Diskette drive cannot read a diskette.
Cannot boot from diskette.
The wrong type of diskette is being used.
Diskette has a bad sector.
Drive error has occurred.
Diskette is not formatted.
FORMAT A:
Use the type of diskette required by the drive.
Copy files to hard drive or another diskette. Reformat bad floppy.
Run Computer Checkup from the Compaq Diagnostics diskette.
Format the diskette. At the system prompt, enter
Bootable diskette is not in drive A.
Diskette Boot has incorrect setting in Computer Setup.
FORMAT A:
Put the bootable diskette in drive A.
Run Computer Setup and set diskette as first to boot.
This section lists some common causes and solutions for computer display and external monitor problems.
You can perform a monitor self-test on an external VGA color or monochrome monitor by disconnecting the monitor from the computer. To do so, complete the following steps:
1. Turn off the monitor.
2. Turn off the computer.
3. Disconnect the monitor signal cable from the computer.
4. Turn on the monitor and allow it to warm up for one minute.
The display should be white. A narrow black border may also appear on the left and right sides of the display. Either of these displays indicates that the monitor is working properly.
Solving Display Problems
Problem
Screen is dim.
Probable Cause
Control for brightness (if applicable) is not set properly.
Solution(s)
Adjust the Brightness of the display by using Fn + F7 (¯ ) or
Fn + F8 (- ).
Tilt display or move computer.
Screen is blank.
Computer screen is in direct light.
Screen save was initiated by
Power Management due to lack of user activity.
Display has overheated.
Press any key or touch the
Touch Pad.
Internal display is blank and the screen on an external monitor displays information.
If computer is in direct sunlight, move it and allow it to cool off.
Display is blank and the Suspend icon is flashing.
System is in Suspend mode.
Press any key or touch the
Touch Pad.
Display function was switched to the external monitor.
Use Fn + F2 to switch between
LCD or CRT.
Problem
Internal display flashes or has garbled characters when computer is connected to external monitor.
Probable Cause
Using 1024 × 768 or higher resolution on external monitor and have toggled back to internal display, which supports up to
800 × 600.
Improper backlight or display cable connections
Solution(s)
Restart the computer.
The light tubes on the edge of the display panel do not light up at all and Power-On Self-Test
(POST) completes when the unit is powered up.**
Replace the display assembly.
Defective inverter board.
Replace the display assembly.
Defective display cable.
Replace the display assembly.
Defective display panel.
Replace the display assembly.
The light tubes on the edge of the display panel do not light up at all and Power-On Self-Test
(POST) does not complete when the unit is powered up.**
Backlight (brightness) cannot be adjusted with
Fn + F7 (¯ ) or
Fn + F8 (- ).***
Defective system board.
Defective system board.
Improper display cable connections.
Replace the system board.
Replace the system board.
1. Reseat the display cable to the system board.
Defective inverter board.
2. Replace the display assembly.
Replace the display assembly.
Defective display cable.
Replace the display assembly.
Defective system board.
Replace the system board.
Defective inverter board.
Replace the display assembly.
Defective display cable.
Replace the display assembly.
Defective system board.
Replace the system board.
** This problem indicates that the backlight or its power circuitry has failed. Since you cannot observe the POST result on the display panel when the backlight is not functioning, connect the unit to an external monitor before powering the unit up. If an external monitor is not available, verify that POST completes by opening and closing the display, listening for the single or double beep, and watching for the LEDs turn on at the front of the computer.
Problem
This display panel has a continuous pattern across it (e.g., a "jailbars" pattern), has a single color on it, or has garbled graphics across the entire panel. This failure is for patterns across the entire panel (not just on one section).
Probable Cause
Improper display cable connections
Solution(s)
Reseat the display cable to the following until the problem is solved:
1. System board
2. Display assembly
Defective display cable.
Replace the display assembly.
Defective inverter board.
Replace the display assembly.
Defective system board.
Replace the system board.
NOTE:
To perform a "self-test" on an external VGA color monitor, complete the following steps: The screen should be white. A narrow black border may also appear on the left and right sides of the display. Either of these displays indicates that the monitor is working properly.
Some common causes and solutions for hard drive problems are listed in the following table.
CAUTION:
To prevent loss of information, always maintain an up-to-date backup of your hard drive at all times, in case of errors or failures.
Problem
Reading hard drive takes an unusually long time after restarting the computer.
Hard drive error occurs.
Hard drive does not work.
Solving Hard Drive Problems
Probable Cause
System entered Hibernation due to low battery condition and is now exiting from it.
Hard drive has bad sectors or has failed.
Hard drive is not seated properly.
Solution(s)
Give the system time to restore the previously saved data to its exact state before Hibernation.
Run Computer Checkup.
Turn off and unplug the computer, remove the battery pack, and remove and then reinstall the hard drive.
Some common causes and solutions for hardware installation problems are listed in the following table.
Problem
Solving Hardware Installation Problems
Probable Cause Solutions(s)
A new device is not recognized as part of the computer system.
Cable(s) of new external device are loose or power cables are unplugged.
Power switch of new external device is not turned on.
Ensure that all cables are properly and securely connected.
Turn off the computer, turn on the external device, then turn on the computer to integrate the device with the computer system.
Device is not seated properly. Turn off the computer and reinsert the device.
Some common causes and solutions for keyboard/numeric keypad problems are listed in the following table.
Solving Keyboard/Numeric Keypad Problems
Problem
Embedded numeric keypad on computer keyboard is disabled.
Probable Cause
Num Lock function is not enabled.
Solution(s)
Press the Shift+NumLk keys to enable the Num Lock function and embedded numeric keypad. The Num
Lock icon on the status panel turns on.
Embedded numeric keypad is disabled and Num Lock function is on.
External numeric keypad is connected to the computer.
Disconnect the external numeric keypad from the computer.
Some common causes and solutions for memory problems are listed in the following table.
Solving Memory Problems
Problem Probable Cause
Memory count during Power-On Self-
Test (POST) is incorrect.
Optional memory expansion card is installed incorrectly, is incompatible with the computer, or is defective.
Solution(s)
Ensure that the optional memory expansion card is installed correctly.
"Out of Memory" message is displayed on the screen or insufficient memory error occurs during operation.
System ran out of memory for the application.
Check the application documentation for memory requirements.
Install additional memory.
Too many TSR (terminateand stay-resident) applications are running.
Remove from memory any
TSR applications that you do not need.
Solving Minor Problems (continued)
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Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
|
Home Page
|
Notice
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Removal & Replacement Procedures
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Some common causes and solutions for PC Card problems are listed in the following table.
Problem
When turned on, the computer does not beep when a PC Card is inserted.
Solving PC Card Problems
Probable Cause
Card is not inserted properly.
PC Card beeps are disabled.
Solution(s)
Ensure the card is inserted in the correct orientation.
Speaker is turned off or volume is turned down.
PC Card drivers are not installed.
Double-click the PC Card icon in the Control Panel, click the Global Settings tab, the enable PC Card sound effects.
Press volume buttons to turn the speaker on, then increase the volume.
Double click the Add New
Hardware icon in the
Control Panel for installation instructions.
PC Card modem, fax, or network card does not work.
PC Card modem or fax card does not work.
Card or card driver is not supported.
Card is not fully inserted into the slot or is not inserted properly.
Telephone cord is not plugged in all the way.
Necessary drivers are not installed (turned on).
You are trying to access the card using the wrong COM port.
The card conflicts with a serial device.
The card is not supported.
If PC Card or drivers are not compatible with Windows, install drivers and use the
PC Card in MS-DOS mode.
Contact your Compaq authorized service provider for a list of PC Cards tested successfully in Compaq PC
Card platforms.
Ensure the card is inserted in the correct orientation.
Check and secure telephone connection.
Install drivers.
See
to verify
COM port.
See
to verify address.
Use supported cards only.
Modem network PC Card does not work.
Memory or storage card does not work.
Network driver is not installed or is not set up properly.
Telephone cord is not properly connected.
SRAM and flash memory cards require the memory card driver to be loaded (turned on).
Install driver.
Verify telephone connection.
Install driver.
Flash memory cards require the
Microsoft FlashFile System to be loaded.
Hard drives on flash mass storage cards require the PC Card ATA driver to be loaded.
You are trying to access the hard drive card using the wrong drive letter.
The card is not supported.
Double-click My
Computer to verify the drive letter assigned to the card.
Contact your
Compaq authorized service provider for a list of PC Cards tested successfully in
Compaq PC Card platforms.
Also see "Solving Battery and Battery Gauge Problems" in this section.
Problem
Computer won't turn on and battery pack is not inserted.
Solving Power Problems
Probable Cause
Computer is not connected to a power source.
Solution(s)
Insert battery or connect an external power source.
Power cords to the external power source are unplugged.
Power adapter is defective.
Computer turned off while it was left unattended and the power icon is off.
System board is defective.
System initiated Hibernation due to a critical low-battery condition.
System initiated Hibernation after a preset timeout.
Ensure that power cords connecting the computer and the external power source are plugged in properly.
Replace AC Adapter and restart.
Replace the system board.
Replace the battery pack with a fully charged battery pack or connect the computer to an external power source.
Then turn on the computer.
Turn on the computer.
If you experience problems printing, run a printer self-test. Refer to the documentation provided with your printer for instructions. If the self-test fails, it is a printer-specific problem. Also refer to the printing section of your application documentation.
Problem
Printer will not turn on.
Solving Printer Problems
Probable Cause
The signal cable may not be connected properly, or the printer is unplugged.
Solution(s)
Ensure that the signal cable is properly connected and that the power cord is connected to the electrical outlet.
Printer will not print.
Printer is not turned on or is off line.
The device drivers for your application are not installed.
Turn the printer on and set it to on line.
Refer to the printer documentation to install the correct printer driver.
Printer prints garbled information.
Printer that is set up for a network is not connected to the network.
Connect the printer to the network.
Printer cable is too long, unshielded, or defective.
Paper tray is empty.
Correct printer drivers are not installed.
Replace the cable.
Fill the paper tray with paper and set the printer to online.
Refer to the printer documentation to install the correct printer driver.
Cable is not connected properly.
Cable is defective.
Ensure that the printer signal cable is properly connected to the computer.
Replace the printer cable and retest.
Some common causes and solutions for Touch Pad/pointing device problems are listed in the following table.
Problem
Solving Touch Pad/Pointing Device Problems
Cause
Touch Pad or mouse does not work. Incorrect or no device driver is installed.
Solution(s)
Install the device driver and add to the
AUTOEXEC.BAT file or
CONFIG.SYS file.
External mouse does not work.
Touch Pad or mouse does not work even though the device is enabled in Windows.
Cursor skips or moves abnormally when using the Touch Pad.
The device driver is not installed in Windows.
Mouse is not securely connected or is connected to an incorrect external connector.
Mouse is not enabled.
Install the Touch
Pad/mouse driver in
Windows.
Ensure that the mouse is securely connected to the appropriate external connector.
Enter MOUSE at the system prompt to activate the mouse device driver.
Add a line in the
AUTOEXEC.BAT file to automatically activate the mouse device driver each time computer is turned on or restarted.
Reseat cable.
Cable not properly seated in
Touch Pad board.
Defective Touch Pad board.
Replace Touch Pad board.
Defective system board.
Replace system board.
Device driver is not correctly installed in Windows.
The Touch Pad needs to be cleaned.
Install the appropriate device driver in Windows.
Clean the Touch Pad with a cloth dampened with alcohol or an ammoniabased glass cleaner. Wipe up liquid with a dry cloth.
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System Unit
Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Home Page
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Notice
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Removal & Replacement Procedures
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Description
1. Status Panel
2. Palmrest Cover
3. Keyboards
Spare Part
Number
293737-001
332226-001
United States 330981-001
France 330981-051
4. Upper CPU Cover with
Power Switch Connector
(Top Plastics)
5. Speaker Assembly w/Cable
6. Battery Pack,
Li ion
7. CPU Base Assembly
Enclosure,(Bottom
Plastics)
293739-001
293883-001
330936-001
331156-001 privacy statement legal notices
United States January 2, 2003
Boards
Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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Description
1. Heatspreader
Spare Part
Number
331164-001
2. Processors
Pentuim II/233 347556-001
Pentuim II/266 330983-001
3. Audio Board 331010-001
4. LCD Interface Board
TFT w/header
293156-001
5. Modems
Modem, 56.0 Kbps Data/Fax w/o
DRAM 138610-001
6. Fan w/Cable 332228-001
7. Voltage Converter 331019-001
8. System Board, w/o processor
System Board, w/o processor
331009-001
347731-001
9. Memory Module
16-MB
32-MB
64-MB
293726-001
293727-001
332208-001 privacy statement legal notices
United States January 2, 2003
privacy statement legal notices
Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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Description
Display
Assembly w/Cable,
13.3 inch TFT
Spare Part
Number
331012-001
United States January 2, 2003
Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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Mass Storage Devices
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Description
1. Diskette Drive w/Cable, 1.44 MB,
3.5 inch
Spare Part
Number
331165-001
2. Hard Drives
Hard Drive w/Mounting Bracket,
6.4-GB 347548-001
330967-001 3. 24× MAX CD
Drive
3. DVD Drive 347549-001
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United States January 2, 2003
Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
Miscellaneous Cables Kit
Description
1a. Cable, Diskette Drive
1b. Cable, Hard Drive
1c. Cable, CD/DVD Drive
1d. Cable, TouchPad SW Board
1e. Cable, Fax/Modem
1
1
1
1
Quantity
1
United States January 2, 2003
Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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Description
Power Cord
Description
1. Modem privacy statement legal notices
Power Cords
Spare Part Number
United States/ French Canada 293831-001
International 293831-002
Modem Cables
Spare Part Number
Asia Pacific 137256-001
Canada 137256-001
United States January 2, 2003
Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
Miscellaneous Hardware and Plastics Kit
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Description
1. Door, Battery Pack
2. Cover, Memory Module
3. Door, PCMCIA
4. Hinge (Clutch) Cover, Left
5. Hinge (Clutch) Cover, Right
6. Rubber Foot
7. Stand Foot (plastic)
8. Hard Drive Mounting Bracket
9. Stiffener Bracket
Quantity
1 each
1 each
2 each
1 each
1 each
10 each
10 each
1 each
1 each
United States January 2, 2003
Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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Miscellaneous Parts
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Description
1. AC Adapter
2. Port
Replicator
Clock Battery
(Not Shown)
Miscellaneous
Screw Kit
(Not Shown)
Spare Part
Number
298239-001
293857-001
117099-001
293760-001
Logo Kit
(Not Shown)
Return Kit
(Not Shown)
203727-001
293799-001
PCMCIA Bracket
(Not Shown)
331166-001
United States January 2, 2003
Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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Documentation and Software
Description
Quick Restore CD
Quick Reference Guide
QuickFind for Windows, North America, Latin America, Asia
Pacific
QuickFind for Windows, Europe, Middle East, Africa
Spare Part Number
*QuickFind is updated monthly. To complete the QuickFind part number, add the suffix from the table below for the desired month. If you do not specify the 3-digit suffix, the default is the current month in which the order is placed.
QuickFind Part Number Suffix
Suffix
-001
Month
January
Suffix
-007
Month
July
-002
-003
-004
-005
-006
February
March
April
May
June
-008
-009
-010
-011
-012
August
September
October
November
December privacy statement legal notices
United States January 2, 2003
Maintenance & Service Guide
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Models: 1805 and 1810
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Removal & Replacement Procedures
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Electrostatic Discharge
A sudden discharge of static electricity from a finger or other conductor can destroy static-sensitive devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic device exposed to electrostatic discharge (ESD) may not be affected at all and will work perfectly throughout a normal cycle. Although, it may function normally for a while, then degrade in the internal layers, reducing its life expectancy.
Networks built into many integrated circuits provide some protection, but in many cases, the discharge contains enough power to alter device parameters or melt silicon junctions.
Generating Static
The table shows how different activities generate static electricity and at different electrostatic voltage levels.
Event
Walking across carpet
Typical Electrostatic Voltages
Relative Humidity
10% 40% 55%
35,000 V 15,000 V 7,500 V
Walking across vinyl floor
Motions of bench worker
Removing DIPS from plastic tubes
Removing DIPS from vinyl trays
12,000 V
6,000 V
2,000 V
5,000 V
800 V
700 V
11,500 V 4,000 V
3,000 V
400 V
400 V
2,000 V
Removing DIPS from Styrofoam
Removing bubble pack from PCBs
Packing PCBs in foam-lined box
NOTE: 700 volts can degrade a product.
14,500 V 5,000 V 3,500 V
26,000 V 20,000 V 7,000 V
21,000 V 11,000 V 5,000 V
Return to Removal & Replacement Procedures
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Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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Listed below are some of the considerations that you should keep in mind during the disassembly and assembly of the computer.
To service the computer, you need the following:
Compaq screwdriver kit (Spare Part No. 161946-001)
Torx T-9 screwdriver
5mm nut drivers (for screwlocks and standoffs)
Small, standard screwdriver
Small, Phillips screwdriver
Plastic shroud
Diagnostics software
The screws used in the computer are not interchangeable. If an incorrect screw is used during the reassembly process, it can damage the unit. Compaq strongly recommends that all screws removed during disassembly be kept with the part that was removed, then returned to their proper locations.
IMPORTANT:
As each subassembly is removed from the computer, it should be placed away from the work area to prevent damage.
Return to Removal & Replacement Procedures
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Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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Most cables used throughout the unit are ribbon cables. Cables must be handled with extreme care to avoid damage. Apply only the tension required to seat or unseat the cables during insertion or removal from the connector. Handle cables by the connector whenever possible. In all cases, avoid bending, twisting, or tearing the cables, and ensure that the cables are routed in such a way that they cannot be caught or snagged by parts being removed or replaced.
Use the following precautions when handling cables to avoid damage to the cable or computer:
Always handle cables by their connectors.
Avoid bending, twisting, or pulling on the cables.
Apply minimum required force when seating or unseating the cables from their connectors.
Place the cables in such a manner that they cannot be caught or snagged by parts being removed or replaced.
Handle flex cables with extreme care; they can tear easily.
CAUTION: When serving these computers, ensure that cables are placed in their proper location during the reassembly process. Improper cable placement can cause severe damage to the unit.
Removing a Cable from a
The ribbon cable position for the
3.2-GB, 4.0-GB, and 6.4-GB hard drive
.
The ribbon cable position for the
The ribbon cable position for the
The cable position for the speaker assembly.
Plastic parts can be damaged by the use of excessive force during disassembly and reassembly. When handling the plastic parts, use care. Apply pressure only at the points designated in the maintenance instructions.
Return to Removal & Replacement Procedures
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Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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The computer uses a zero insertion force (ZIF) connector for the keyboard cable to the system board. To remove a cable from a ZIF connector, lift both corners of the ZIF connector and slide simultaneously with constant light force.
CAUTION: A ZIF connector and its attached cable can be easily damaged.
Handle only the connector slide when removing or replacing a cable. Never pull or twist on the cable while it is connected.
CAUTION: When servicing this computer, ensure that cables are placed in their proper location during the reassembly process. Improper cable placement can damage the computer.
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Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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The ribbon cable position for the 3.2-GB, 4.0-GB, or
6.4-GB hard drive.
United States January 2, 2003
Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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The ribbon cable position for the CD drive.
United States January 2, 2003
Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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The ribbon cable position for the diskette drive.
United States January 2, 2003
Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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The cable position for the speaker assembly.
.
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Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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Preparing the Computer for Disassembly
Before beginning removal and replacement procedures, complete the following procedures:
1. Disconnect AC power and any external devices.
2. Remove the battery pack.
3. Remove any PC Cards.
Preparing the
Computer for
Disassembly
Battery Pack
Palmrest
Cover with
Touch Pad
IMPORTANT:
NOTE:
as well as the battery contacts in the battery compartment. To prevent damage, do not allow metal objects to touch the battery contacts. Place only the battery pack for the Compaq Presario 1800
Series Portable Computers into the battery compartment. Do not force the battery pack into the bay if insertion does not occur easily. pack.
The battery pack should be removed before performing any internal maintenance on the computer.
WARNING:
CAUTION:
Metal objects can damage the battery pack
Do not crush, puncture, or incinerate the battery pack. Do not open a battery pack, as this damages the pack, makes it unusable, and exposes potentially harmful battery components. There are no field-serviceable parts located inside the battery
The Compaq Presario 1800 Series Portable
Computers have several screws of various sizes which are not interchangeable. Care must be taken during reassembly to ensure that the correct screws are used in their correct location. During removal please keep respective screws with their associate sub-assembly.
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Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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Removing the Keyboard
Battery Pack
Palmrest
Cover with
Touch Pad
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To remove the keyboard, complete the following steps:
1. Prepare the computer for disassembly .
2. Remove the palmrest cover with touch pad .
3. Gently lift up the front of the keyboard and disconnect the flex cable from the
ZIF connector on the system board.
NOTE:
To remove a cable from a
ZIF connector, lift both corners of the
ZIF connector and slide simultaneously with constant light force.
Then remove the cable.
Refer to the section on
more information on removing a cable from the
ZIF connector.
Next Step
United States January 2, 2003
Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Preface
|
Product Description
|
Troubleshooting
Illustrated Parts Catalog
|
Removal & Replacement Procedures
|
Specifications
Pin Assignments
Removing the Heatspreader
Battery Pack
Palmrest
Cover with
Touch Pad
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To remove the heatspreader, complete the following steps:
1. Prepare the computer for disassembly .
2. Remove the palmrest cover with touch pad .
3. Remove
.
4. Remove three screws from the heatspreader and lift out of the chassis.
To replace the heatspeader, reverse the previous procedures.
United States January 2, 2003
Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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Removing the Modem
Battery Pack
Palmrest
Cover with
Touch Pad
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To remove the modem and shield, complete the following steps:
1. Prepare
the computer for disassembly .
2. Remove the palmrest cover with touch pad .
3. Remove
.
4. Remove the
.
5. Remove two screws securing the shield and modem, lift off the shield, and pull the modem off the connector on the system board.
United States January 2, 2003
Maintenance & Service Guide
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Models: 1805 and 1810
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Removal & Replacement Procedures
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6. Disconnect the modem cable from the modem.
To replace the modem, reverse the previous procedures.
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Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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Removing the Processor
Battery Pack
Palmrest
Cover with
Touch Pad
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To remove the processor, complete the following steps:
1. Prepare the computer for disassembly .
2. Remove the palmrest cover with touch pad .
3. Remove
.
4. Remove the
.
5. Remove
.
6. Remove two screws securing the processor bracket.
United States January 2, 2003
Maintenance & Service Guide
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Models: 1805 and 1810
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Removal & Replacement Procedures
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7. Insert a small blade screw driver under the right side on the processor and lift the processor from the chassis slot.
8. Lift the processor out of the processor chassis slot.
To replace the processor complete the following steps:
1. Insert the processor into the chassis slot on the system board and push down into the slot.
2. Replace the processor bracket.
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Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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Removing the Status Panel
Battery Pack
Palmrest
Cover with
Touch Pad
To remove the status panel, complete the following steps:
1. Prepare the computer for disassembly .
2. Remove the palmrest cover with touch pad .
3. Remove the
4. Move the lever (located below the CD
Play button on the status panel) to the right to release the status panel cover.
5. Support the front bottom corners of the status panel with the thumb and forefinger.
Lift up the status panel off the chassis.
Next Step
Revised: 22 October 1998 privacy statement legal notices
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Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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Interface Board with Header
Battery Pack
Palmrest
Cover with
Touch Pad
Audio Board
To remove the interface board with header, complete the following steps:
1. Prepare the computer for disassembly.
2. Remove the palmrest cover with touch pad.
3. Remove the keyboard.
4. Remove the status panel.
5. Remove the two screws from the interface board.
Revised: 22 October 1998 privacy statement legal notices
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Maintenance & Service Guide
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Removal & Replacement Procedures
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6. Slightly lift the interface board, disconnect the ZIF connector, and backlight power cable from the interface board.
Revised: 22 October 1998 privacy statement legal notices
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Maintenance & Service Guide
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Models: 1805 and 1810
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Removal & Replacement Procedures
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7. Lift the interface board up with the header attached from the system board.
.
When removing the interface board with the header attached occassionally the header will remain attached to the system
IMPORTANT:
board. If this occurs when removing the interface board with the header attached, separate the header from the connector on the system board.
To replace the interface board, reverse the previous procedures.
NOTE:
When replacing interface board, ensure both connectors on the board are properly seated.
Revised: 22 October 1998 privacy statement legal notices
Revised: 22 October 1998 privacy statement legal notices
United States January 2, 2003
The following illustration and table indicates the locations of the connectors on the interface board.
Interface Board Components
Designator Connector
1. JP1 Backlight Switch
2. JP3
3. JP4
4. None
Display Interface ZIF
Inverter/Backlight LIF
Connector
Interface Header
United States January 2, 2003
Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
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Removal & Replacement Procedures
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Battery Pack
Palmrest
Cover with
Touch Pad
Removing the 3.2-GB, 4.0-GB, or 6.4-GB Hard Drive
To remove the hard drive with the hard drive bracket attached, complete the following steps:
1. Prepare the
2. Remove the palmrest cover with touch pad .
3. Remove four screws from the hard drive mounting bracket and lift up the hard drive.
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Maintenance & Service Guide
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Models: 1805 and 1810
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Removal & Replacement Procedures
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5. Disconnect the hard drive data cable from the hard drive and remove from the chassis.
privacy statement legal notices
United States January 2, 2003
Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
|
|
Removal & Replacement Procedures
|
|
To remove the hard drive mounting bracket, complete the following step:
Remove four screws from the hard drive mounting bracket.
To replace the hard drive and hard drive mounting bracket, reverse the previous procedures.
privacy statement legal notices
United States January 2, 2003
Battery Pack
Palmrest
Cover with
Touch Pad
Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
|
Removal & Replacement Procedures
Removing the Battery Charger Board
To remove the battery charger board, complete the following steps:
1. Prepare the
2. Remove the palmrest cover with touch pad .
3. Remove the
4. Remove the
5. Remove the stiffener bracket .
6. Remove screw from the battery charger board, unplug the board from the connector on the system board, and lift out of the chassis.
To replace the battery charger board, reverse the previous procedures.
NOTE:
When replacing the battery charger board, ensure the pins are aligned with the connector on the system board.
privacy statement legal notices
United States January 2, 2003
Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
|
|
Removal & Replacement Procedures
|
Removing the CD or DVD Drive
Battery Pack
Palmrest
Cover with
Touch Pad
privacy statement legal notices
To remove the CD or
DVD drive, complete the following steps:
1. Prepare
the computer for disassembly .
2. Remove the palmrest cover with touch pad .
3. Remove
.
4 Remove the
.
4. Remove
.
5. Remove the stiffener bracket .
6. Remove
7. Remove two screws located at the back CD or
DVD drive.
United States January 2, 2003
Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
|
|
Removal & Replacement Procedures
|
|
8. Disconnect the CD or DVD drive cable from the system board.
To replace the CD or DVD drive, reverse the previous procedures.
Revised: 22 October 1998 privacy statement legal notices
United States January 2, 2003
Maintenance & Service Guide
Presario 1800 Series
Models: 1805 and 1810
|
|
Removal & Replacement Procedures
|
|
Removing the Display Panel Assembly
Battery Pack
Palmrest
Cover with
Touch Pad
privacy statement legal notices
To remove the display panel assembly, complete the following steps:
1. Prepare the computer for disassembly .
2. Remove the palmrest cover with touch pad .
3. Remove the
4. Remove the
.
6. Remove the interface board.
7. Grasp the hinge covers, pull out and lift the covers off the chassis.
IMPORTANT:
Carefully remove the display panel assembly hinge covers.
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