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2-3: CUT OFF
1. Receive the color bar petter".
2. Using the remote control. set brightness and
contrast to minimum position.
3. Connect the oscilloscope to ,TPO24.
4. Adjust the screen control until voltage is 150VOC.
(Refer to Fig. 2-6)
2-4: FOCUS
1. Receive the broadcasting signal.
2. Adiust the locus control until picture is distinct
2-5: VERTICAL SIZE
1. Receive the crosshatch petter" from the color
bar generator.
2. Adjust the bright and contrast controls until
the crosshatch patter" is distinct.
3. Adjust VA401 until the center of crosshatch
is square.
4. Receive broadcasting signal, the" confirm
picture is normal.
2-6: VERTICAL POSITION
1, Receive the color bar patter".
2. Using the remote control. set brightness and
Contrast Lo maximum position.
3. Adjust the value of A429 and R430 until horizontal
line of the color bar comes to approximate center
of the CRT.
NOTE
Lessen the value of R430......Picture
Lessen the value of R429.....Picture will move about
R429 and R430 are fixed resistors. Use a variable
resistor to determine the optimal value and insert
that value resistor.
2 - 7 : HORIZONTAL POSITION
Receive the color bar patter".
Using the remote control. set brightness and
contrast to maximum position.
Adjust the value of R444 and C460 until the color width
of both screen edges are equal.
Receive the broadcasting signal, the" confirm
picture is normal.
ELECTRICAL ADJUSTMENTS
Fig. 2-f
will move about
5mm UP.
5mm DOWN.
NOTE
Lessen the value of R444......Picture will move right.
Lessen the value of C460 ,...,.Picture will move left.
R444 and C460 are fixed components. Use a variable
resistor or capacitor to determine the optimal value
and insert that value component.
3. PURITY A N D CONVERGENCE
ADJUSTMENT
NOTE
1. Turn the unit on and let it warm up for at
least 30 minutes before performing the followiiig
adjustments.
2. Place the CRT surface facing east or west to
reduce the terrestrial magnetism.
3. Turn ON the unit and demagnetize
degauss Coil,
3-1: STATIC CONVERGENCE (ROUGH ADJUSTMENT
1. Tighten the screw for the magnet. Refer to the
adjusted C R T for the position.
(Refer t o Fig. 3-1)
If the deflection yoke and magnet are in one
body, untighten the screw for the body.
2. Receive the green raster patter" from c o l o r
bar generator.
3.
Slide the deflection yoke until it touches the
funnel side o f the CRT.
4. Adjust center of screen to green. with red
and blue a" the sides, using the pair of
purity magnets.
5. Switch the color bar generator from the green
raster patter" to, the crosshatch pattern.
6. Combine red and blue of the 3 color crosshatch
Patter" on the center of the screen by adjusting
the pair of 4 pole magnets.
7. Combine red/blue (magenta) and green by
adjusting the pair of 6 pole magnets.
8. Adjust the crosshatch petter" to change to
white by repeating steps 6 and 7.
3-2: PURITY
NOTE
Adjust after; performing adjustments in section 3-1
Receive the green raster petter" from color bar
generator.
Adjust the pair of purity magnets to center the
color on the screen.
Adjust the pair of purity magnets so the color
at ends are equally wide.
Move the deflection yoke backward (to neck
side) slowly, and Stop it at the position when
the whole screen is green.
with a
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