Alignment Settings - Panasonic TX-28LD20F Serviceanleitung

ALIGNMENT SETTINGS

(The figures below are nominal and used for representative purposes only.)
1. Set the Bass to maximum position, set the Treble to minimum position, press the volume down button
(-/v) on the customer controls at the front of the TV and at the same time press the INDEX button on the remote
control, this will place the TV into the Service Mode.
2. Press the RED / GREEN buttons to step up / down through the functions.
3. Press the YELLOW / BLUE buttons to alter the function values.
4. Press the STR button after each adjustment has been made to store the required values.
5. To exit the Service Mode, press the "N" button.
Alignment Function
Horizontal Position
Vertical Position
Horizontal Amplitude
Vert. Amplitude
EW-amplitude
EW-amplitude
Trapezium-comp
Trapezium-comp
Vertical Linearity
Vertical Symmetry
Cut-off DC
Sub-Brightness
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DVCO
Ug2 Test
Highlight
Lowlight
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H-Pos
061
V-Pos
005
H-Amp
055
V. Amp
054
E/W-Amp1
-128
E/W-Amp2
006
Trapez-1
047
Trapez-2
-128
V-Lin
006
V-Sym
002
DVCO
-005
Cut-off
0171
Ug2
055
O.K.
High 0902 0777 0864
Low 0117 0132 0112
Sub-Brightness
255
8
Settings / Special features
Optimum setting.
Optimum setting.
Optimum setting.
Optimum setting.
Optimum setting.
Optimum setting.
Optimum setting.
Optimum setting.
Optimum setting.
Optimum setting.
Receive a PAL Colour Bar Pattern. For
DVCO alignment press "Blue" button, wait
until the colours are changing slowly and
press "STR".
To adjust Cutoff connect an oscilloscope to
the Blue cathode.Press "STR" and adjust
"cutoff" value using the "Yellow" and
"Blue" buttons until the black level is
160V ± 5V, press "STR" to store the value.
Remove the oscilloscope.
Select Ug2 adjustment and adjust the
screen VR until the display shows "O.K."
Black Level
160V ± 5V
GND
Optimum setting.
Optimum setting.