Toshiba PORTEGE M400 - Manual (Page 171)

3.21 Only One Test 3 Tests and Diagnostics
Subtest 06 Acceleration sensor
This subtest detects and corrects the each axis (X, Y, Z).
NOTE: Make sure that this subtest is executed on the following condition:
1. Flat desk with vertical plane to get the stability of machine.
2. Prevent the machine from shake or shock.
Set the machine
against the vertical plane
with the Front upward
<Example>
Vertical plane
Flat desk
The figure below shows the name and position of each side.
Top
(heaven surface)
Back
Right side
Front Left side
Figure 3-1 Name and positions of each side
PORTEGE M400 Maintenance Manual (960-541) [CONFIDENTIAL] 3-53