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Dell Inspiron Cp Service Guide

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Page 21

Initial Procedures 2-1
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This chapter describes initial procedures that can help you diagnose a com-
puter problem. These procedures can often reveal the source of a problem or 
indicate the correct starting point for troubleshooting the computer. Dell rec-
ommends that you perform these procedures in the order presented here.
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When you first contact a user who has a computer problem, ask the user to 
describe the problem and the conditions under which it...

Page 22

2-2 Dell Latitude CP and CPi Service Manual 
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The visual inspection consists of a quick inspection of the exterior of the 
computer and any attached peripherals, including making any necessary cor-
rections. For information about the proper removal and installation of computer 
components, as instructed in the following procedures, see Chapter 4, 
“Removing and Replacing Parts.” 
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Page 23

Initial Procedures 2-3
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See the 
Users Guide that came with the C/Port APR or C/Dock Expansion 
Station for detailed instructions on undocking the computer.
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‡The AC adapter’s AC power cable is connected to both the adapter and 
a power...

Page 24

2-4 Dell Latitude CP and CPi Service Manual 
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‡The monitor’s interface cable is properly attached to the video connec-
tor on the I/O panel.
‡The captive screws that secure the connectors at each end of the inter-
face cable are secure enough to ensure a firm connection.
‡The monitor’s power cable is attached to a power source and free of 
obvious physical damage.
‡The monitor’s controls are set according to the instructions in the docu-...

Page 25

Initial Procedures 2-5
To observe the boot routine, follow these steps:
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Do these indicators light up within approximately 10 seconds after...

Page 26

2-6 Dell Latitude CP and CPi Service Manual 
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Devices within the computer may require dedicated memory spaces, interrupt 
levels, or DMA channels, all of which must be allocated during installation of 
the devices. Because devices may be installed at different times, it is possible 
that the same resource is assigned to two or more devices. 
Resource conflicts can result in disorderly or erratic computer operation or fail-
ure of the computer to operate at all. If you...

Page 27

System Error Messages 3-1
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This chapter describes system error messages that can occur during computer 
startup or, in the case of some failures, during normal computer operation. The 
tables in this chapter list POST error codes, battery failure codes, and system 
error messages, as well as their probable causes.
If a faulty computer does not display a POST error code or system error mes-
sage to indicate a failure, use the Dell Diagnostics to help isolate the source of...

Page 28

3-2 Dell Latitude CP and CPi Service Manual 
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1- 1- 3 N V R A M  w r i t e / r e a d  
failureBIOS corrupted; system board 
fault y
1- 1- 4 R O M  B I O S  c h e c k s u m  
failureBIOS corrupted; system board 
fault y
1-2-1 Programmable interval 
timer failureSystem board faulty
1-2-2 DMA initialization 
failureSystem board faulty
1-2-3 DMA page register 
write/read failureSystem board faulty
1- 3 - 1
through
1- 1- 1Installed memory...

Page 29

System Error Messages 3-3
4-3-1 Memory failure above 
address 0FFFFhMemory module improperly seated 
or system memory controller faulty 
(system board faulty)
4-3-3 Timer chip counter 2 
failureSystem board faulty
4-3-4 Time-of-day clock 
stoppedReserve battery faulty or system 
board faulty
4-4-1 Serial port failure System board faulty
5-1-2 No usable memory Memory module improperly seated 
or system memory controller faulty 
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Page 30

3-4 Dell Latitude CP and CPi Service Manual 
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In the event of a battery failure, the battery indicator displays indicator codes 
that identify the severity of the problem. The following table lists these failure 
codes.
    
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Indicator 
flashes 
alternately 
green and 
amber.Temporary Over temperature;
abnormal discharge;
abnormal charge;
abnormal charge...
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