compaq presario 1230 1250 User Manual

							Compaq Presario Series Maintenance and Service Guide 
United States     December 6, 2002
Presario 1200 Series
Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252 
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
To remove the fan 
gasket, complete the 
following step:
Pull the gasket from the 
fan.
To replace the fan 
assembly, reverse the 
previous procedure.
NOTE:
To replace the 
fan with gasket 
attached, place 
the fan assembly 
at a 15 degree 
angle and push 
forward. 
Return to Removal & 
Replacement 
Procedures 
 
 
 
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							Compaq Presario Series Maintenance and Service Guide 
United States     December 6, 2002
Presario 1200 Series
Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252 
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Removing the System Board
Disassembly 
Sequence
Electrostatic 
Discharge
Service 
Considerations
Cables and 
Connectors
Preparing the 
Computer for 
Disassembly
Battery Pack
Palmrest 
Cover with 
Touch Pad
Heatspreader
Keyboard
Processor
Hard Drives
CD Drive
Battery 
Charger Board
Modem
Display Panel 
Assembly
Upper CPU 
Cover
Speaker 
Assembly
Diskette Drive
Fan Assembly
System 
Board
Dip Switch 
Settings
Memory 
ModuleTo remove the system board, complete the following steps:
1. Prepare the 
computer for disassembly.
2. Remove the 
palmrest cover with touch pad.
3. Remove the 
heatspreader.
4. Remove the 
keyboard.
5. Remove the 
processor.
6. Remove the 
modem.
7. Remove the 
hard drive.
8. Remove the 
display panel assembly.
9. Remove the 
Upper CPU Cover.
10. Remove the 
battery charger board.
11. Remove the 
diskette drive.
12. Remove the 
CD drive.
13. Remove the 
fan.
14. Disconnect the 
speaker assembly cables. 
Next Step
 
 
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							Compaq Presario Series Maintenance and Service Guide 
United States     December 6, 2002
Presario 1200 Series
Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252 
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
15. Remove three 
standoffs from the 
system board.
Next Step
 
 
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							Compaq Presario Series Maintenance and Service Guide 
United States     December 6, 2002
Presario 1200 Series
Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252 
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
16. Remove two screws 
from the CD Drive 
mounting rails and 
remove the mounting 
rails from the system 
board.
Next Step
 
 
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							Compaq Presario Series Maintenance and Service Guide 
United States     December 6, 2002
Presario 1200 Series
Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252 
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
17. Remove three 
screws from the system 
board.
Next Step
 
 
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							Compaq Presario Series Maintenance and Service Guide 
United States     December 6, 2002
Presario 1200 Series
Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252 
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
18. Pull the PCMCIA eject lever out (straight), lift 
up the right side of the system board and pull 
forward to remove the system board from the 
chassis.
To replace the system board, reverse the 
previous procedures.
IMPORTANT:Remove all cables from the 
system board.
Dip Switch System Board Settings 
Return to Removal & Replacement Procedures 
 
 
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							Compaq Presario Series Maintenance and Service Guide 
United States     December 6, 2002
Presario 1200 Series
Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252 
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
CAUTION:  When replacing the system board, ensure the dip switch voltage setting\
s on the system board are correct for the computer model 
and processor voltage marked on the processor chip.   If the system boar\
d dip switch voltage settings are not correct, damage may occur to the 
computer and/or system board. 
 
 
NOTE:The black area on the dip switch indicates the position of the switch.
Return to Removal & Replacement Procedures 
 
 
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							Compaq Presario Series Maintenance and Service Guide 
United States     December 6, 2002
Presario 1200 Series
Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252 
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Removing the Memory Module
Disassembly 
Sequence
Electrostatic 
Discharge
Service 
Considerations
Cables and 
Connectors
Preparing the 
Computer for 
Disassembly
Battery Pack
Palmrest 
Cover with 
Touch Pad
Heatspreader
Keyboard
Processor
Hard Drives
CD Drive
Battery 
Charger Board
Modem
Display Panel 
Assembly
Upper CPU 
Cover
Speaker 
Assembly
Diskette Drive
Fan Assembly
System Board
Dip Switch 
Settings
Memory 
Module
To remove 
the memory 
module, 
complete 
the following 
steps:
1. Prepare 
the 
computer for 
disassembly.
2. Close the 
computer 
and turn the 
computer 
upside 
down.
3. Remove 
the screw 
from the 
memory 
module 
door, and 
slide the 
memory 
module door 
to the right.
Next Step
 
 
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							Compaq Presario Series Maintenance and Service Guide 
United States     December 6, 2002
Presario 1200 Series
Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252 
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
4. Pull side levers to 
release the memory 
module and unplug the 
memory module from 
the system board.
To replace the memory 
module, reverse the 
previous procedures.
Return to Removal & 
Replacement 
Procedures 
 
 
 
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							Compaq Presario Series Maintenance and Service Guide 
United States     December 6, 2002
Presario 1200 Series
Models: 1234, 1235, 1236, 1237, 1238, 1240, 1242, 1250, and 1252 
Before You BeginSpecificationsParts Catalog
Removal SequenceTroubleshootingBattery Operations
Product DescriptionPin AssignmentsIndex
Specifications
This chapter covers the following specifications of Compaq Presario 1200\
 Series Portable 
Computers:
l     Computer models
l     Physical and environmental
l     System Interrupts
l     System DMA
l     System I/O Address
l     System Memory Catalog
l     Display
l     Memory expansion
l     Diskette drive
l     Hard drive
l     CD drive
l     Battery pack
 
Physical and Environmental
Computer Specifications
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) [12/6/2002 4:46:07 PM]