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EN 216
8.
FJ3.0E LA
alignment is done automatically (standard value: "32"), even
during analogue reception. The analogue tuner UV1318S
however needs to be aligned as follows (use spectrum
analyser and RF generator):
•
Warm up set for a short period.
•
Tune set to 203.25 MHz.
•
Apply unmodulated carrier of 203.25 MHz (70 dBμV) to
antenna input.
•
Measure IF-output of the tuner (pin 11) with active probe
and spectrum analyser.
•
Adjust AGC (via SAM menu), until measured level is less
or equal to 103 dBμV (6-bit register, typical value is 42
dec).
•
Store settings and quit SAM.
8.3.3
IF PLL Offset
The IF PLL Offset value needs to be realigned in case the MPIF
and/or the NVM have been replaced. This is not necessary in
case only the tuner has been replaced. Default values are:
•
For PAL B/G: 40
•
For SECAM L: 32
In case the result is not satisfying (distortion in sound and/or
discolouration in left and right part of the picture), use the
following method to align the IF PLL Offset value:
•
Switch set "off".
•
Disconnect speakers and connect a resistor of 1 kΩ
instead.
•
Connect AC voltmeter at resistor.
•
Switch set on.
•
Put "Volume" at maximum.
•
Align PLL until voltage is at minimum.
In case the minimum value on the AC voltmeter is found in a
range of IF PLL Offset values, the value should be taken that is
in the middle of this range.
8.3.4
White Point
•
Set "Active control" to "Off" as earlier described.
•
Choose "TV menu", "TV Settings" and then "Picture" and
put:
–
"Dynamic contrast" to "Off".
–
"Colour enhancement" to "Off".
–
"Light sensor" to "Off".
–
"Clear LCD" to "On" where applicable.
–
"Colour" to "0".
–
"Contrast" to "100".
•
Go to the SAM and select "Alignments"-> "Whitepoint".
White point alignment:
•
Use a 100% white screen as input signal and set the
following values:
–
"Colour temperature": "Normal".
–
All "Whitepoint" values to: "127".
–
"Red BL offset" and "Green BL offset" values to "8".
In case you have a colour analyser:
•
Measure with a calibrated (phosphor- independent) colour
analyser in the centre of the screen. Consequently, the
measurement needs to be done in a dark environment.
•
Adjust the correct x,y coordinates (while holding one of the
White point registers R, G or B on 127) by means of
decreasing the value of one or two other white points to the
correct x,y coordinates (see table "White D alignment
values"). Tolerance: dx: ± 0.004, dy: ± 0.004.
•
Repeat this step for the other colour Temperatures that
need to be aligned.
•
When finished press OK on the RC and then press STORE
(in the SAM root menu) to store the aligned values to the
NVM.
•
Restore the initial picture settings after the alignments.
Alignments
8.4
8.4.1
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).
•
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 OK on the RC, then press STORE (in
the SAM root menu) to store the aligned values to the NVM.
•
Restore the initial picture settings after the alignments.
Table 8-1 Tint settings
Colour Temp.
R
Cool
122
Normal
125
Warm
127
Option Settings
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 by pressing the OK
button on the RC before the cursor is moved to the left,
select STORE in the SAM root menu and press OK on the
RC.
•
The new option setting is only active after the TV is
switched "off" / "standby" and "on" again with the Mains
switch (the NVM is then read again).
G
B
120
121
118
108
110
75
2
C
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