Toshiba 29CZ8URB, Руководство по обслуживанию

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ELECTRICAL ADJUSTMENTS
FOCUS VR ADJ
SUB-BRIGHTNESS
(BRTC)
Note: Constrict the picture height
until the vertical retrace line
appears adjusting the item
HIT (HEIGHT).
HORIZONTAL POSITION
ADJUSTMENT (HPOS)
VERTICAL POSITION
ADJUSTMENT (VPOS)
VERTICAL AMPLITUDE
ADJUSTMENT (HIT)
1. Enter the service mode, then select any register item.
2. Press the
a
button on the Remote until the black cross-bar pattern appears on the
screen.
3. Adjust the FOCUS control (on T461) for well defined scanning lines on the picture
screen.
1. Set CONTRAST to minimum, and
BRIGHTNESS to center by adjusting user
controls.
2. Set the TV in service mode to get Black
cross-bar of inside pattern.
3. Select BRTC (brightness correction), and
adjust the
;
–/+ button to reduce the value
so that white portion of inside pattern slightly
light.
4. Adjust
;
–/+ button to increase the data
value of BRTC, and set it just before the
difference between the belt of vertical retrace
and the border of black portion of inside
pattern is visible.
After that, return vertical height and contrast.
1. Set the TV in service mode, and get
black cross-bar signal with
a
button
on remote hand unit.
2. Select either HPOS (Horizontal picture
phase) or VPOS (Ver tical picture
phase) with CH
s
,
t
buttons, and
adjust horizontal or vertical picture
position in the center of screen with
;
–/+ buttons.
1. Set the TV in service mode, and get
black cross-hatch signal with
a
button
on remote hand unit.
2. Select HIT (Vertical amplitude) with
CH
s
,
t
buttons, and adjust vertical
amplitude with
;
–/+ buttons so that
vertical amplitude lacks a little.
3. Adjust vertical amplitude with
;
–/+
buttons so that the first bar on cross-
hatch signal touches edge of screen.
Belt of vertical retrace
The first
ITEM
ADJUSTMENT PROCEDURE