compaq presario 900 series User Manual

							2–24Maintenance and Service Guide
Troubleshooting
Flowchart 2.14 - No OS Loading from CD- or
DVD-ROM Drive
Clear CMOS. 
Refer to 
Section 1.3, 
“Clearing a 
Password,” for 
instructions.
Y
Done
N
Bootable
disc in
drive? Disc
in drive? No OS
loading from
CD- or
DVD-ROM Drive.Install 
bootable disc 
and reboot
computer.
Go to
Flowchart 2.17,
Nonfunctioning
Device.
Go to
Flowchart 2.17,
Nonfunctioning
Device. Install
bootable disc.
Boots from
CD or DVD?
Boots from
CD or DVD?Try another
bootable disc.
Booting
from another
device?
Booting
order
correct?
Correct boot 
order using
the setup utility.Done Reseat
drive.
Y
Y Y Y
Y
N NN
N
N
272638-001.book  Page 24  Thursday, July 25, 2002  4:21 PM 
						

							Troubleshooting
Maintenance and Service Guide2–25
Flowchart 2.15 - No Audio, Part 1
No audio.
N
Notebook in 
docking station
(if applicable)?Internal
audio?
Audio? Done
Undock
Audio? Done Turn up audio 
internally or 
externally.
Go to
Flowchart 2.16,
No Audio, Part 2.
Go to
Flowchart 2.16,
No Audio, Part 2.
Go to
Flowchart 2.17,
Nonfunctioning
Device.Replace the following docking station 
components one at a time as applicable. 
Check after each change.
1. Reseat docking station audio cable.
2. Replace audio cable.
3. Replace speaker.
4. Replace docking station audio board.
5. Replace backplane board.
6. Replace I/O board.
Y
Y Y
Y
N
NN
272638-001.book  Page 25  Thursday, July 25, 2002  4:21 PM 
						

							2–26Maintenance and Service Guide
Troubleshooting
Flowchart 2.16 - No Audio, Part 2
YN
Continued from 
Flowchart 2.15,
No Audio, Part 1.
Reload
audio drivers. Audio
driver in OS
configured?
Audio?
Y Y
Y N N N
Correct
drivers for
application?
Connect to
external
speaker.Load drivers 
and set 
configuration
in OS.
Audio? Done Replace audio 
board and 
speaker 
connections 
in notebook 
(if applicable).
1. Replace internal speakers.
2. Replace audio board (if applicable).
3. Replace system board.
272638-001.book  Page 26  Thursday, July 25, 2002  4:21 PM 
						

							Troubleshooting
Maintenance and Service Guide2–27
Flowchart 2.17 - Nonfunctioning Device
Done
Any physical
device detected?
Y
N
Unplug the nonfunctioning device 
from the notebook and inspect cables 
and plugs for bent or broken pins or 
other damage.
Reseat 
device.
Clear
CMOS.
DoneFix or
replace
broken item. Nonfunctioning
device.
Reattach device.
Close notebook,
plug in power,
and reboot.
Device
boots
properly?Go to
Flowchart 2.9,
No OS Loading.
Device
boots
properly? Possible bad hard 
drive. Replace 
drive.
Possible bad 
diskette drive.
Replace drive.
Possible bad NIC.
Replace card. If
integrated NIC, 
replace system 
board.
YNYN
272638-001.book  Page 27  Thursday, July 25, 2002  4:21 PM 
						

							2–28Maintenance and Service Guide
Troubleshooting
Flowchart 2.18 - Nonfunctioning Keyboard
Y
N
OK? Keyboard
not operating 
properly.
External
device
works?Replace
system
board.
Replace
system
board. Connect notebook 
to good external 
keyboard.
Reseat internal 
keyboard 
connector 
(if applicable).
Replace internal 
keyboard or 
cable.
OK?
Y N
Y
N
DoneDone
272638-001.book  Page 28  Thursday, July 25, 2002  4:21 PM 
						

							Troubleshooting
Maintenance and Service Guide2–29
Flowchart 2.19 - Nonfunctioning Pointing Device
Y
N
OK? Pointing device
not operating 
properly.
External
device
works?Replace
system
board.
Replace
system
board. Connect notebook 
to good external 
pointing device.
Reseat internal 
pointing device 
connector 
(if applicable).
Replace internal 
pointing device or 
cable.
OK?
Y N
Y
N
DoneDone
272638-001.book  Page 29  Thursday, July 25, 2002  4:21 PM 
						

							2–30Maintenance and Service Guide
Troubleshooting
Flowchart 2.20 - No Network or Modem Connection
Y
Disconnect all 
power from
the notebook
and open.
No network
or modem 
connection.
N
Done Digital
line?
Network
or modem jack 
active?Replace jack or 
have jack 
activated.
Connect
to nondigital
line.
NIC/modem 
configured 
in OS?Reload
drivers and 
reconfigure.
Reseat 
NIC/modem 
(if applicable).Replace 
NIC/modem 
(if applicable).
Replace
system
board.OK?
OK? Done
N N
N N Y
Y Y
Y
272638-001.book  Page 30  Thursday, July 25, 2002  4:21 PM 
						

							Maintenance and Service Guide3–1
3
Illustrated Parts Catalog
This chapter provides an illustrated parts breakdown and a 
reference for spare part numbers and option part numbers.
3.1 Serial Number Location
When ordering parts or requesting information, provide the 
computer serial number and model number located on the bottom 
of the computer (Figure 3-1).
Figure 3-1. Serial Number Location
272638-001.book  Page 1  Thursday, July 25, 2002  4:21 PM 
						

							3–2Maintenance and Service Guide
Illustrated Parts Catalog
3.2 Computer System Major Components
Figure 3-2. Computer System Major Components
272638-001.book  Page 2  Thursday, July 25, 2002  4:21 PM 
						

							Illustrated Parts Catalog
Maintenance and Service Guide3–3
Table 3-1
Spare Parts: Computer System Major Components
Item DescriptionSpare Part 
Number
1Displays
For use only with Evo Notebook N1005 models
15.0-inch, TFT, SXGA+
15.0-inch, TFT, XGA
14.1-inch, TFT, XGA
For use only with Presario 900 models
15.0-inch, TFT, SXGA+
15.0-inch, TFT, XGA
14.1-inch, TFT, XGA
Display Inverter Board Kit (not illustrated)291643-001
291642-001
291641-001
286754-001
285521-001
285520-001
293348-001
Miscellaneous Plastics/Hardware Kit, includes:285541-001
2a
2b
2c
2d
2e
2f
2g
2h
2i
2j
2k
2l
2mLeft hinge cover
Right hinge cover
*Display release assembly
TouchPad bracket
Charger board shield
Optical drive rear alignment rail
Optical drive front alignment rail
PC Card space saver
*Connector cover
*Hard drive bracket
*Mini PCI compartment cover
*Memory expansion compartment cover
*Battery bezel
*Includes two of each part, one with carbon finish for use with
Evo Notebook N1005 models and one with silver finish for use 
with Presario 900 models
Not illustrated: Computer feet
3LED cover285536-001
272638-001.book  Page 3  Thursday, July 25, 2002  4:21 PM