Alignments
8.
8.
Alignments
Index of this chapter:
8.1 General Alignment Conditions
8.2 Hardware Alignments
8.3 Software Alignments
Note:
The Service Default Mode (SDM) and Service Alignment
Mode (SAM) are described in chapter 5. Menu navigation is
done with the CURSOR UP, DOWN, LEFT or RIGHT keys of
the remote control transmitter.
8.1
General Alignment Conditions
Perform all electrical adjustments under the following
conditions:
•
Power supply voltage (depends on region):
–
AP-NTSC: 120 V
AC
or 230 V
AC
/ 50 Hz (
±
10%).
–
AP-PAL-multi: 120 - 230 V
AC
/ 50 Hz (
±
10%).
–
EU: 230 V
AC
/ 50 Hz (
±
10%).
–
LATAM-NTSC: 120 - 230 V
AC
/ 50 Hz (
±
10%).
–
US: 120 V
AC
/ 60 Hz (
±
10%).
•
Connect the set to the AC Power 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 chassis
ground (with the exception of the voltages on the primary
side of the power supply).
Caution:
It is not allowed to use heatsinks as ground.
•
Test probe: Ri > 10 Mohm, Ci < 20 pF.
•
Use an isolated trimmer/screwdriver to perform
alignments.
8.1.1
Initial Settings
Perform all electrical adjustments with the following initial
settings:
1.
To avoid the working of the lightsensor, set "Active Control"
to "Off" (via the "Active Control" button on the RC).
2.
Set "Smart Picture" to "Natural" or “Soft” (via the "Smart
Picture" button on the RC).
8.1.2
Alignment Sequence
•
First, set the correct options:
–
In SAM, select OPTIONS,
–
Fill in the option settings according to the set sticker
(see also paragraph "Option Settings"),
–
Store the OPTIONS by switching the set to STAND-
BY.
•
Warming up (>15 minutes).
•
White-D alignment.
8.2
Hardware Alignments
8.2.1
Backlight Voltage Alignment
Switch the set "on" and measure the voltage between pin 3 (or
4) of connector 1304 (on MF panel) and ground. Align R3026
until this voltage is 12.2 V
DC
+/- 0.1 V.
Caution:
This voltage must be aligned very precisely (within
1%): when it is too high, it can destroy the inverters. When it is
too low, the backlight will not start up.
8.3
Software Alignments
With the software alignments of the Service Alignment Mode
(SAM), Options can be set and the WHITE TONE, TUNER (IF)
and AUDIO settings can be aligned.
To store the data: Use the RC button MENU to switch to the
main menu and then switch to STAND-BY mode.
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 1 mV and a frequency of 475.25 MHz
•
US/AP-NTSC
models: an NTSC M/N TV-signal with a
signal strength of at least 1 mV and a frequency of 61.25
MHz (channel 3).
•
LATAM
models: an NTSC M or PAL M TV-signal with a
signal strength of at least 1 mV and a frequency of 61.25
MHz (channel 3).
8.3.1
SAM Menu
Figure 8-1 Overview SAM menu (example from EU set).
8.3.2
White Tone
Method 1 (with color analyzer):
1.
Supply a 100% white uniformity test signal (100 IRE white)
to the tuner.
2.
Enter SAM menu (color features are switched “off”
automatically).
3.
Do NOT change the SMART PICTURE, ACTIVE
CONTROL, and C settings to prevent
activating of Green Enhancement, Blue Stretch, and Black
Stretch.
Offset values in NVM are used for HD-, HDMI-, and VGA mode,
therefore only the settings in TV mode need to be set.
SAM
SAM
. OP1 0
. Delta Cool Red -3
. OP2 57
. Delta Cool Green -1
. OP3 140
. Delta Cool Blue 5
. OP4 32
. OP5 120
. OP6 128
. OP7 0
SAM
SAM
. IFPLL 32
. Normal Red 32
. AGC 30
. Normal Green 35
. AGCL' 255
. Normal Blue 41
SAM
SAM
. Cool
. Delta Warm Red 2
. Normal
. Delta Warm Green -3
. Warm
. Delta Warm Blue -13
SAM
SAM
.ADR 0x0000 0
.VAL 0x0000 0
.Store Store ?
SAM
.ADR 0x0000 0
.VAL 0x0000 0
.Store Store ?
E_14710_009.eps
240604
1 00022
LC42EP1 2.03/S42GV1 2.02 CSM
2 CODES 0 0 0 0 0
3 OP 000 057 140 032 120 128 000
4
5
6 NOT TUNED
7 PAL
8 STEREO
9 CO 50 CL 50 BR 50
0 AVL Off
00022 LC42EP1 2.03/S42GV1 2.02 SDM
. QSS Off
. FMI On
. NICAM Alignment 63
. Lip Sync
Off
. DBE
Off
ERR 0 0 0 0 0
OP 000 057 140 032 120 128 000
00022 LC42EP1 2.03/S42GV1 2.02 SAM
ERR 0 0 0 0 0
OP 000 057 140 032 120 128 000
. Clear Clear ?
. Options
. Tuner
. White Tone
. Audio
. NVM Editor
. SC NVM Editor
. Test Pattern
. ComPair Mode On