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EN 18
6.
TPS2.1E LA
6. Alignments
Index of this chapter:
6.1 General Alignment Conditions
6.2 Hardware Alignments
6.3 Software Alignments
6.4 Reset of Repaired SSB
Note: The Service Alignment Mode (SAM) is described in
chapter 5. Menu navigation is done with the CURSOR UP,
DOWN, LEFT or RIGHT keys of the remote control transmitter.
6.1
General Alignment Conditions
Perform all electrical adjustments under the following
conditions:
•
Power supply voltage (depends on region):
–
AP-NTSC: 120 V
–
AP-PAL-multi: 120 - 230 V
–
EU: 230 V
/ 50 Hz (± 10%).
AC
–
LATAM-NTSC: 120 - 230 V
–
US: 120 V
/ 60 Hz (± 10%).
AC
•
Connect the set to the mains via an isolation transformer
with low internal resistance.
•
Allow the set to warm up for approximately 15 minutes.
•
Measure voltages and waveforms in relation to correct
ground (e.g. measure audio signals in relation to
AUDIO_GND).
Caution: It is not allowed to use heatsinks as ground.
•
Test probe: Ri > 10 MΩ, Ci < 20 pF.
•
Use an isolated trimmer/screwdriver to perform
alignments.
6.2
Hardware Alignments
Not applicable.
6.3
Software Alignments
Put the set in SAM mode (see Chapter 5
Error Codes, and Fault
appear on the screen.
For the next alignments, supply the following test signals via a
video generator to the RF input:
•
EU/AP-PAL models: a PAL B/G TV-signal with a signal
strength of at least 10 mV and a frequency of 64.25 MHz
•
EU/AP-SECAM models: an SECAM D/K TV-signal with a
signal strength of at least 10 mV and a frequency of 223.25
MHz.
6.3.1
Scaler Gain
•
Choose "TV", "Picture", and then "Dig.CrystalClear" and
set:
–
"Dynamic contrast" to "Off".
–
"Colour enhancement" to "Off".
–
"Brightness" to "50".
–
"Colour" to "50".
–
"Contrast" to "50".
•
Go to the SAM and select "Scaler Gain".
Scaler Gain alignment LCD screen:
•
Use a 100% white screen as input signal and set the
following values:
–
"Colour temperature": "Normal".
–
All "Scaler Gain " values to: "128"
2009-Apr-10
Alignments
or 230 V
/ 50 Hz (± 10%).
AC
AC
/ 50 Hz (± 10%).
AC
/ 50 Hz (± 10%).
AC
"5. Service Modes,
Finding"). The SAM menu will now
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: ± 0.15, dy: ± 0.15.
•
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.
Table 6-1 White D alignment values
Value Cool (11000 K) Normal (9000 K) Warm (6500 K)
x
0.278
y
0.278
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 6-2 Tint settings
Colour Temp.
R
Cool
102
Normal
111
Warm
127
6.4
Reset of Repaired SSB
A very important issue towards a repaired SSB from a service
repair shop, implies the reset of the NVM on the SSB.
A repaired SSB in service should get the service Set type
"00PF0000000000" and Production code "00000000000000".
Also the virgin bit is to be set. To set all this, you can use the
ComPair tool.
Due to the compensation needed for the LED backlight TV sets
19PFL3404/xx, the item "Backlight time" value, stored in NVM,
must be reset in the spare SSB with the original value of the TV
set. "Backlight time" value can be found in the SAM (062596 +
info button).
In case of a display replacement, reset the "Backlight time" to
"0", or to the operation hours of the replacement display
0.289
0.314
0.291
0.319
G
B
096
128
102
128
114
125
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