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Sharp DV-1600 Series User Manual

Sharp DV-1600 Series
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VIDEO CHROMA ADJUSTMENT
Step
Adjust point
Connection
Procedure
1.
CRT
cut-off
adjust:
eceive
monoscope pattern
R853
;
R-bias
,
(OR
(1)
Turn
screen
control
clockwise
slowly until
signal.
R859;
G-bias
the horizontal
raster
appears
slightly,
and
(Instead
of
monoscope pattern stop it.
R865;
B-bias
signal,
it
is
allowed
to
use
black/
Screen
control
(2)
One
of
the three colours (R,
G
and
B)
white pattern
signal.)
appears
first
as
screen
control
is
turned.
(2)
Set
R857
(G-drive)
and
R863
So,
touching
off
the
bias
control
belonging
(B-drive)
at
CENTER
position.
to
the first colour,
use
and
move
the other
Set
R853
(R-bias),
R859
(G-bias)
two
bias
controls
clockwise
until the raster
and
R865.
(B-bias)
at
MIN
becomes white.
position. Note:
Be
careful not
to
cause
the raster
to
(3)
Set
screen
control
at
MIN
appear
too
brightly;
or
there
will
be
a
position. fear
of
CRT
burning.
(4)
Short
TP403
and
TP404.
(3)
Turn
screen
control counter-clockwise
(5)
Short
TP401
and
TP402,
then
until
the raster
disappears,
and stop it.
raster
will
appear
on
CRT.
2.
White
balance/
(1)
Receive
monoscope pattern
(1)
Adjust R857 and
R863
to
let the colour
/
background adjust:
signal.
temperature (white)
be
at 6500°K.
R85
7;
G-drive (2)
Set
contrast control at
MAX
I
(2)
Adjust contrast
and
brightness controls
so
R863
;
B-drive
position.
that
beam
current
is
350pA, then
see
that
(3)
Set
brightness control
at
MAX
1
colour temperature (background)
is
still
position.
at 6500°K.
If
not,
readjust from the
(4)
Connect
beam
arnmeter
to
beginning.
TP603
and
TP604.
(5)
Adjust
R406
(sub-contrast)
so
that
beam
current
is
l.OmA.
3.
/
Sub-contrast adjust:
/
(1)
Receive
monoscope pattern
signal
(1)
Adjust
R406
so
that
beam
current
is
/
R406
(Instead
of
monoscope pattern
1
.OmA.
signal,
it
is
allowed
to
use
white
pattern
signal
of
88%
modulation.)
/
(2)
Set
contrast control at
MAX
position.
(3)
Set
brightness
control at
MAX
position.
’
’
(4)
Connect
beam
ammeter to
TP603
and
TP604.
Ammeter setting:
Full
scale
3mA
Connection
of
ammeter:
0
side
to
TP604,
and
@
side
to
TP603.
4.
Chroma
/
(1)
c
onnect pattern generator
I
(PM5508)
to
the
receiver:
the
I
I
antenna input
is
about
71
dB.
/
(2)
Set
contrast
and
brightness
controls at
MAX
position, and
colour control at
CENTER
position.
(1)
Receive
“matrix”
pattern
signal.
(2)
Adjust
T882
so
that
the brightness won’t
vary with
every
1H
change
of
scanning
line.
(3)
Receive
“delay”
pattern
signal.
(4)
Adjust
R805
so
that the
brightness
won’t
vary with every
1H
change
of
scanning
line.
.
(5)
Receive
“phase” pattern
signal,
and
adjust
T801
so
that
the
same
tone
will
be
obtained for
both
upper
and
lower
halves
of
screen.
8

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Sharp DV-1600 Series Specifications

General IconGeneral
BrandSharp
ModelDV-1600 Series
CategoryTV
LanguageEnglish

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