Maintenance & Service Guide
Presario 1900 Series
Models: 1900T, 1905, 1906, 1910, 1915, 1919, 1920, 1922, 1925, 1926, 1927, 1928, 1929, and 1930
Before You Begin |
| Specifications |
| Parts Catalog |
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Removal Sequence |
| Troubleshooting |
| Battery Operations |
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Product Description |
| Pin Assignments |
| Index |
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Removal and Replacement Procedures
Electrostatic
Discharge
Service
Considerations
Cables and
Connectors
Preparing the
Computer for
Disassembly
Battery Pack
Hard Drive
Keyboard
Memory
Module
Modem
Heatspreader
Processor
Display Panel
Assembly
Upper CPU
Cover with
Palmrest and
TouchPad
Hard Drive/
Battery
Charger Board
Converter
Board
Low Voltage
Differential
Signal Board
Fan Assembly 
System Board 
Speaker
Assembly
Disassembling
the Wedge
DVD or CD
Drive
System to
Wedge
Interface
Board
Diskette Drive 
Wedge to Port
Replicator
Interface
Board
How to use
Processor Jig
Removing the Processor
To remove the processor, complete the following steps:
1.Prepare the computer for disassembly.
2.Release and lift the keyboard.
3.Remove the heatspreader with thermal pad.
4.Remove two
screws that secure the processor to the system board.
The bottom of the processor contains socket
IMPORTANT: pins
which can be easily damaged, if not properly removed.
WARNING:
The Pentium
IIprocessor may be very hot when the unit has been running. Allow the processor to cool before handling it.
5.Insert a small blade screw driver under the right side of the processor. Gently lift up the left side of the processor while rocking up and down the right side, until the it releases from the socket. This is necessary to prevent damage to the socket pins.
To replace the processor complete the following steps:
1.Align the processor over the socket using the screw holes as a guide. Apply equal pressure on both sides of the processor over the socket (left side).
2.Replace two screws.
3.Replace the heatspreader with thermal pad.