Panasonic QuintrixF TX-28PK25, Service Manual

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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 Settings / Special features
Horizontal Position
H-Pos
061
Optimum setting.
Vertical Position
V-Pos
005
Optimum setting.
Horizontal Amplitude
H-Amp
055
Optimum setting.
Vert. Amplitude
V-Amp
054
Optimum setting.
EW-amplitude
E/W-Amp1
-128
Optimum setting.
EW-amplitude
E/W-Amp2
006
Optimum setting.
Trapezium-comp
Trapez-1
047
Optimum setting.
Trapezium-comp
Trapez-2
-128
Optimum setting.
Vertical Linearity
V-Lin
006
Optimum setting.
Vertical Symmetry
V-Sym
002
Optimum setting.
DVCO
DVCO
-005
Receive a PAL Colour Bar Pattern. For
DVCO alignment press "Blue" button, wait
until the colours are changing slowly and
press "STR".
Cut-off DC
Cut-off
0171
Ug2 Test
Ug2
055
O.K.
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."
Highlight
Lowlight
High 0902 0777 0864
Low 0117 0132 0112
Optimum setting.
Sub-Brightness
Sub-Brightness
255
Optimum setting.
6
Black Level
160V±5V
GND
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