Adjustment; Service Mode; Grouping Of The Adjustments - Nokia 446PRO Service Manual

4. Service Mode

Service Mode is needed for updating of the factory adjustments for display mode listed in the chap-
ter Preset Display Modes. If there is no location in factory adjustment memory for display mode cur-
rently in use, the adjustment affects the memory for user adjustments.

4.1. Grouping of the adjustments

There are three groups of software adjustments in service mode:
Geometry set
--
-- Grey scale adjustment set
The following table shows how the adjustments act in relation to the display modes.

Adjustment

Horizontal centering
Vertical centering
Height
Width
Pincushion
Pincushion balance
Trapezoid
Orthogonality
S- -correction
C- -correction
E/W corner
Tilt
Moire
Raster
G2
Min contrast
Max contrast
R Black level
G Black level
B Black level
R Ampl
G Ampl
B Ampl
BCL adjust
Vertical conv
Horizontal conv
Init burn in test *
Common adjustments need to be adjusted only once. Separate adjustment must be performed for
every display mode to be stored
* Init burn in test only for manufacturing purposes
16
Common for Separate for
all Display each Display
modes mode
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
446F
Available in Available in
User Mode Service Mode
X X
X X
X X
X X
X X
X X
X X
X X
X
X
X
X X
X X
X
X
X
X
X
X
X
X X
X X
X X
X
X X
X X
X