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ITEM
FOCUS VR ADJ
SUB-BRIGHTNESS
(BRTC)
HORIZONTAL POSITION
ADJUSTMENT (HPOS)
VERTICAL POSITION
ADJUSTMENT (VPOS)
VERTICAL AMPLITUDE
ADJUSTMENT (HIT)
ELECTRICAL ADJUSTMENTS
ADJUSTMENT PROCEDURE
1. Enter the service mode, then input AV1 black cross-bar pattern with signal generator.
2. Adjust the FOCUS control (on T461) for well defined scanning lines on the picture
screen.
1. Input AV1 "5 steps pattern" with video signal
generator.
2. Set
CONTRAST
to
BRIGHTNESS to center by adjusting user
controls.
3. Enter Service mode and press CH s/t to
select BRTC.
4. Press ; –/+ buttons to adjust BRTC until
step 0 and step 1 has the same blackness.
5. Exit service mode and press h button to
set picture mode to DYNAMIC.
1. Enter the service mode, input AV1 black
or white cross-bar signal with signal
generator.
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. Enter the service mode, input AV1 black
or white cross-hatch signal with signal
generator.
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.
– 10 –
minimum
and
The first
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