Philips FTL2.4A Service Manual Download Page 100

Page: 100 / 122

Alignments

EN 100

FTL2.4A AA

8.3.2

2fh ADC Alignment

Only necessary to set, when the A/D convertor or NVM is
replaced. Use the default values as mentioned in the table.

Table 8-2 “2fH ADC alignment”

8.3.3

White D Alignment

•

Set ACTIVE CONTROL to "Off" (via RC).

•

In the TV -> PICTURE user menu set:
–

DYNAMIC CONTRAST to "Off".

–

COLOUR ENHANCEMENT to "Off".

–

COLOUR to "0".

–

CONTRAST to "100".

–

BRIGHTNESS to "43".

•

Go to the SAM and select ALIGNMENTS -> WHITE
POINT.

Method 1 (with colour analyser):

•

Use a 100% white screen as input signal and set the
following values:
–

COLOR TEMPERATURE: "Tint to be aligned".

–

WHITEPOINTRED: "127".

–

WHITEPOINTGREEN: "127".

–

WHITEPOINTBLUE: "127".

–

RED BL OFFSET: "7"

–

GREEN BL OFFSET: "7".

•

Measure with a calibrated (phosphor- independent) colour
analyser in the centre of the screen. Use a contactless
analyser (e.g. Minolta CA-210) to align an LCD TV. The
colour analyser may not touch the screen surface.
Consequently, the measurement needs to be done in a
dark environment.

Note:

The colour analyser needs to be calibrated for LCD!

•

Adjust, by means of decreasing the value of one or two
whitepoints, the correct x,y coordinates (see table "White D
alignment values"). Tolerance: dx,dy:

0.004.

•

Repeat this step for the other Colour Temperatures that
need to be aligned.

•

When finished press "Store" to store the aligned values to
the NVM.

Table 8-3 White D alignment values

Method 2 (without colour analyser):

If you do not have a colour analyser, you can use the default
values. This is the next best solution. The default values are
average values coming from production (statistics).
1.

Select a COLOUR TEMPERATURE (e.g. COOL,
NORMAL, or WARM).

Set the RED, GREEN and BLUE default values according
to the values in the "Tint settings" table.

When finished press "Store" to store the aligned values to
the NVM.

Table 8-4 Tint settings

8.3.4

Lum. Del.

With this Luminance Delay alignment, you place the luminance
information exactly on the chrominance information (brightness
is pushed onto the colour). Use a colour bar / grey scale pattern
as test signal.
•

Lum. Delay PAL BG:

Apply a PAL BG colour bar / grey

scale pattern as a test signal. Adjust this parameter until
the transients of the colour part and black and white part of
the test pattern are at the same position.
Default value is "

•

Lum. Delay PAL I:

Apply a PAL I colour bar/grey scale

pattern as a test signal. Adjust this parameter until the
transients of the colour part and black and white part of the
test pattern are at the same position.
Default value is "

•

Lum. Delay SECAM:

Apply a SECAM colour bar/grey

scale pattern as a test signal. Adjust this parameter until
the transients of the colour part and black and white part of
the test pattern are at the same position.
Default value is "

•

Lum. Delay Bypass:

apply a NTSC colour bar/greyscale

pattern as a test signal. Adjust this value until the transients
of the colour and black and white part of the test area are
at the same position.
Default value is "

8.4

Option Settings

8.4.1

Introduction

The microprocessor communicates with a large number of I

ICs in the set. To ensure good communication and to make
digital diagnosis possible, the microprocessor has to know
which ICs to address. The presence / absence of these specific
ICs (or functions) is made known by the option codes.

Notes:

•

After changing the option(s), save them with the STORE
command.

•

The new option setting is only active after the TV is
switched "off" and "on" again with the Mains switch (the
EAROM is then read again).

Menu item

Value

Red Gain RGB

106

Blue Gain RGB

112

Green Gain RGB