Hitachi 53SWX10B, Руководство по обслуживанию

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2.12 Digital convergence adjustment
Note: 1. If replacing a PRT, DY, etc. perform auto-
digital convergence first. (Press front panel
MAGIC FOCUS switch in normal and in
through mode). This can eliminate the need
for a complete digital convergence alignment.
2. To enter digital convergence adjustment
mode without removing the front speaker
grill, please do the following:
1) Press “Magic Focus” button on the front
panel.
2) While “Magic Focus” is running, press
Magic Focus button again to “Stop”.
3) Press “RECALL” or “STATUS” button after
“STOP” OSD appears on the screen to
enter digital convergence mode.
4) Proceed with convergence adjustment
and save the data.
5) Do MAGICS FOCUS sensor initialization.
6) To exit, press POWER button on the front
panel.
7) Normal and through 1080i modes are
stored separately. Each one has it’s own
memory setting.
Adjustment preparation
(1) Receive an RF or video signal.
(2) Set controls to factory preset.
(3) Install jig screen on the set.
(4) Note the center of the video pattern displayed.
This is necessary to match dotted lines
(adjustment point viewed) and actual point that
is adjusted and displayed by the video signal.
(5) Press the service only switch (on
CONV./FOCUS PWB). The pattern displayed is
now the digital convergence mode.
(6) When performing a complete digital
convergence adjustment CLEAR DATA in RAM.
(With the TV set off, press and hold the service
switch located on the CONV./FOCUS P.W.B.
and then press the POWER button).
Adjustment Point
Adjustment procedure
(1) Red and blue static focus adjustment. Adjust
the static focus VR on Focus pack (UFPK) so
that the center of circle pattern is the most clear.
Check that the focus does not get
conspicuously worse at the edges of the circle
pattern signal or cross-hatch signal.
(2) Green static focus adjustment. Adjust the static
focus VR on Focus pack (UFPK) (for green) so
that the center of circle pattern is the most clear.
Check that the focus does not get
conspicuously worse at the checking point, the
periphery of circle pattern cross-hatch signal.
NOTE: Checking point for the periphery of picture.
Checking point
O
I
L
NOTE: Setting to the center between purple and
crimson is optimum.
(7) After all colors have been adjusted, display all
colors with the cross-hatch pattern signal and
check the focus performance.
(8) Then, select the circle pattern signal and check
the focus performance of each color and all
colors together.
(9) If the focus performance is not acceptable re-
adjust step (1) to (6).
2.11 STATIC FOCUS ADJUSTMENT
Adjustment preparation
(1) LENS FOCUS adjustment should be finished.
(2) Contrast : MAX
Brightness : Center.
(3) Receive the circle pattern signal.
(4) Apply covers to the lens of the colors you are
not adjusting and project only one color on the
screen.
OPTICAL FOCUSING ADJUSTMENT BLUE
CHASSIS DP17 DP14G
SCREEN SIZE 61 53 43 53 61
L1 and L2
(PITCHES from CENTER) 0.0 3.0 3.0 4.0 4.0
BETWEEN
L1&L2 - * * * *
COLOR * * * * *
ABERRATION I 2.5mm MAX 2.5mm MAX 3.5mm MAX 3.0mm MAX 2.0mm MAX
* ** ** * *
O 2.5mm MAX 2.5mm MAX 3.5mm MAX 3.0mm MAX 2.0mm MAX
(NOTE) * Slightly reddish or no color
** Slightly reddish or no color