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Alignments

EN 38

L03.1U AA

Figure 8-2 V_cutoff

Table 8-1 Vg2 alignment values

8.2.2

Focusing

Connect the RF output of a video pattern generator to the
antenna input.

Input a circle or crosshatch test pattern to the television set.

Press the SMART PICTURE button on the remote control
transmitter repeatedly to choose NATURAL (or MOVIES)
picture mode.

Adjust the FOCUS potentiometer (see figure "Top view
family board") until the vertical lines near the left and right
sides of the screen, and near the horizontal center of the
screen, are at minimum width without visible haze.

8.3

Software Alignments and Settings

The following options are performed in the Service Default
Alignment Mode (SDAM). SDAM is described in the "Service
Modes, Error Codes and Fault Finding" section.
The following alignments are explained:
1.

OPTIONS

TUNER

WHITE TONE

GEOMETRY

AUDIO

8.3.1

OPTIONS

Options are used to control the presence or absence of certain
features and hardware.

Note:

Each option byte controls several features of the

television set; therefore, before changing option byte
information, it is important to record the current option byte
values. This ensures that the television features can be
restored to the original settings, if necessary.

How to Change an Option Byte

An Option Byte represents a number of different options.
Changing these bytes directly makes it possible to set all
options very fast. All options are controlled via seven option
bytes. Select the option byte (OP 1.. OP 7) with the MENU UP/
DOWN keys, and enter the new value.

1.

Activate SDAM by pressing the following key sequence on
the remote control transmitter: 0 6 2 5 9 6 directly followed
by the MENU button (do not allow the display to time out
between entries while keying the sequence).

Use the MENU UP/DOWN keys to highlight the OPTIONS
sub menu.

Press the MENU LEFT or MENU RIGHT key to enter the
OPTIONS sub menu.

In the OPTIONS sub menu, press the MENU UP/DOWN
keys to select 'OP 1' through 'OP 7'.

Use the number keys on the remote control transmitter to
enter a new value for the selected option byte. The value
must be entered as a three-digit value (for example, '4'
would be entered as '0 0 4').

The selected value must be between '0' and '255'.

When all desired changes to the option bytes are made,
press the MENU button to return to the top level SDAM
menu. This will save changes to the option byte settings.

To ensure the option byte changes take effect:
–

Turn the television set 'off' by using the 'POWER'
button on the remote control transmitter or the local
keyboard.

–

Disconnect the television set from AC power for at
least ten seconds.

–

Reconnect the television set to AC power.

–

Turn the television set 'on' by using the 'POWER'
button on the remote control transmitter or the local
keyboard.

Leaving the OPTION submenu saves the changes in the
Option Byte settings. Some changes will only take effect after
the set has been switched OFF and ON with the mains switch
(cold start).

How to Calculate the Value of an Option Byte

Calculate an Option Byte value (OP 1 .. OP 7) in the following
way:
1.

Check the status of the single option bits (OB): are they
enabled (1) or disabled (0).

When an option bit is enabled (1), it represents a certain
value (see first column "value between brackets" in table
below). When an option bit is disabled, its value is 0.

The total value of an Option Byte is formed by the sum of
its eight option bits. See second table below for the correct
Option Bytes per type number.

Figure 8-3 Option Byte calculation

Table 8-2 Options settings

Screen Size

Cut-off point (V)

14RF

+135 V ± 4 V

20V

+140 V ± 4 V

20RF

+140 V ± 4 V

27V