2-36 Removal and Replacement HP OmniBook 4100/4150
Component Removal Procedures Additional Steps (See figures on pages 4-2, 4-8)
VGA PCA
Keyboard (page 2-9).
Display (page 2-11).
1. Unplug the touch-pad cable from the VGA PCA.
2. On an OmniBook 4100 or 4150†, use a probe to
unplug the LVDS PCA from the VGA PCA.
3. On the back of the unit, remove the two standoffs
from the VGA connector.
4. Unplug the VGA PCA from the motherboard.
Caution: For an OmniBook 4150B, you must set the
switches on the PCA according to the type of LCD
module in the computer—see the table on page 2-13.
Reassembly Notes: For an OmniBook 4150† with
serial number TW924xxxxx, install a rubber VGA
spacer on the top of the PCA at the front-left corner.
(Service note 4150-11.)
† Models called 4150† in this manual have no marking in the serial number, whereas models called 4150B
have 4150 B after the serial number.
