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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Troubleshooting
Clearing the
Power-on
Password
Clearing the
If the password is not known, clear it by performing the following steps:
1. Turn off the computer.
2. Disconnect the power cord.
3.
4.
5.
Remove the battery pack .
Remove the keyboard.
Disconnect the backlight cable from the connector on the system board.
6.Using a conductive piece of material (piece of wire or tool) simultaneously make contact with the two pads located at R37 on the system board or remove the RTC battery located under the battery charger board for 5 seconds.
The password, together with other Setup attributes, will be cleared.
7.Reassemble the computer.
8.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.
