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2.9 Horizontal size adjustment (R603)
Adjustment preparation
(1)
I;;
(4)
(5)
(6)
(7)
The set’can face east or west.
Input the single cross test signal.
Set video conditions to factory reset.
The lens focus adjustment should have been
completed.
The electric focus should have been coarse
adjusted.
The digital convergence RAM should be cleared
(uncorrected state). With the TV set off, press
and hold the service switch located on the
POWER/DEFLECTION PWB and then press the
power button.
Start adjustment 20 minutes or more after TV is
turned on.
Adjustment procedure
(1) Project only green, the same as Vertical size
adjustment.
(2) Turn horizontal amplitude adjustment VR (R603)
so distance between the left and right vertical
lines is equal to the size shown in the table.
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Note: (1) If internal cross-hatch does not appear after
clearing RAM data, press service switch
again.
(2) To restore old RAM data, turn TV off and on.
2.10 Beam alignment
Adjustment preparation
(1) Adjust at least 30 minutes after turning on power
switch.
(2) Raster inclination, centering, horizontal and
vertical amplitudes and optical focus adjustment
should be completed.
(3) Set video conditions to factory reset.
(4) Receive cross-hatch signals. (Use of internal
cross-hatch signals allowed.)
(5)
Short-circuit all metal parts (metal fittings,
centering magnet) installed on the projection
tubes to GND’s of the projection tubes.
Since metal Darts are charaed with electricitv,
shocks mav be caused if thev are not short
circuited.
Adiustment procedure
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
Green (G) tube beam alignment adjustment.
Short-circuit 2P subminiature connector plug
pins of Red (R) and Blue (B) on the CPT boards
and project only Green (G) tube.
Put Green (G) tube beam alignment magnet to
the cancel state as shown below.
Turn the Green (G) static focus (Focus Pack)
counterclockwise all the way and make sure of
position of cross-hatch center on screen. (Halo
state.)
Turn the Green (G) static focus (Focus Pack)
clockwise all the way. (Blooming state.)
Turn two magnets forming alignment magnet in
any desired direction and move cross-hatch
center to position found in (3).
If image position does not shift when Green (G)
static focus (Focus Pack) is turned. Green (G)
beam alignment has been completed.
If image position shifts when Green (G) static
focus (Focus Pack) is turned, repeat (2)-(6).
Conduct beam alignment for red (R) focus:
Focus Pack UFPK Blue (B) focus: Focus Pack
UFPK.
Upon completion of adjustment, fix beam
alignment magnets with white paint.
2.11 Beam shape adjustment
Adjustment preparation
(1) The beam alignment
completed.
(2) The raster inclination,
should have been
centering, horizontal/
vertical amplitude and optical focus adjustments
should have been completed.
(3) Set video conditions to factory reset.
(4) Input the dot signal.
Adjustment orocedure
(1)
(2)
(3)
(4)
(5)
Green PRT beam shape adjustment. Short-
circuit 2P sub-mini connectors on Red and Blue
CPT PW.B.s to project only the Green beam.
Turn the green static focus fully clockwise.
(Blooming.)
Make the dot at the screen center a true circle
using the 4-pole magnet as shown below.
Also adjust the Red and Blue PRT beam shapes
according to the steps (1) to (3).
After the adjustment has been completed, return
R, G and B static VRs to the just focus point.
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