Orion TC1973D, Service Manual

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ELECTRICAL ADJUSTMENTS
2-3: CUT OFF
Receive the color bar pattern.
2. Using the remote control. set and contrast to
position.
3. Connect the oscilloscope to TP024.
4. Adjust the volume until voltage is
(Refer Fig. 2-7)
- - - -
. .
- -
50V
Fig.
2-4: FOCUS
1. the broadcasting signal.
2. Adjust the focus control until picture is distinct
2-5: VERTICAL SIZE
1. Receive the crosshatch pattern the
color
bar generator.
2. Activate the adjustment display (Fig. and press
the 2 key.
3. Press the VOL. UP/DOWN key on the remote control until
the horizontal is equal to the vertical
2-6: VERTICAL POSITION
1. Receive the color bar pattern.
2. Using the remote control, set brightness and contrast to
maximum position.
3. Adjust the value of R429 and R430 until horizontal line of
the color bar comes to approximate center of the CRT.
NOTE
R429 and R430 are fixed resistors. Use a variable
resistor to determine the optimal value and insert that
value resistor.
Lessen the value R 4 3 0 Picture will
about
5mm UP.
Lessen the value R 4 2 9 Picture will move about
5mm DOWN.
2-7: HORIZONTAL POSITION
Receive the color bar pattern.
2. Adjust the value R443 and until the color width
both screen edges are equal.
3. the broadcasting signal, then confirm picture is
normal.
NOTE
R443 and are fixed
components.
Use a variable
resistor or capacitor to determine the optimal value and
insert that value component.
Lessen the value of R443 will move right.
Lessen the Picture Will move left.
8