Toshiba 34AX9UH Service Manual page 14

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F1DS Series (Reference factory adjustment)
Items
Settings
Input signals
SCNT
Sub-contract
Contrast: MAX
Bright: CNT
Color: CNT
Taint: CNT
BRTC
Sub-bright
Contrast: MAX
center
Bright: CNT
Color: MIN
COLC
Sub color
Contrast: MAX
NTSC
Bright: CNT
Color: CNT
Taint: CNT
Y mute: ON
COLS
Sub-color
Contrast: MAX
SECAM
Bright: CNT
Color: CNT
Taint: CNT
Y mute: ON
R CUT
R cutoff
Set to
G CUT
G cutoff
R CUT: 40H
B CUT
B cutoff
G CUT: 40H
Screen
B CUT: 40H
VR
Enter horizon-
tal straight-line
mode
R CUT
White balance
Contrast: MAX
G CUT
R cutoff
Bright: CNT
B CUT
G cutoff
Color: MIN
GDRV
B cutoff
BDRV
G drive
Set to
B drive
GDRV: 40H
BDRV: 40H
Measuring
Adjusting
Measuring
methods
methods
instruments
Sub-bright
TP46R
Synchro
signal
(J2CH)
Sub-bright
Screen
Screen
signal
adjust-
adjustment
(J2CH)
ment
Sub-bright
TP46B
Synchro
signal
(J 2CH)
SECAM
TP46B
Synchro
Color bar
(E 2ch)
Screen
Screen
adjust-
judgment
ment
Raster sig-
C·P·T
W/B
nal without
checker
color burst
– 14 –
Adjusting methods
1 If SCNT is selected, Y signal
is transmitted from the
monitor output.
2 Adjust the amplitude from
pedestal level to white level.
1 Adjust the number of col-
lapsed black lines of the sub-
bright signal.
2 Adjust after adjusting W/B,
SCNT.
1 If COLC is selected, B-Y
signals are transmitted from
the monitor output.
2 Adjust the amplitude of the
color bar output.
3 Adjust after adjusting SCNT,
TNTC.
1 If COLS is selected, B-Y
signals are transmitted from
the monitor output.
2 Adjust the amplitude of the
color bar.
3 Adjust after adjusting SCNT.
1 Carry out the setting as the
condition mentioned on the
left.
2 Gradually increase the screen
VR and stop it at a position
where any line of R, G, or B
begins to emit light slightly.
3 This position right here will be
set for screen VR adjustment.
4 Gradually increase remaining
two screen VRs – except the
line that emitted slight light as
mentioned in item 2 above –
and stop at positions where
respective lines begin to emit
light slightly. (Make adjust-
ment until the screen be-
comes virtually white.)
1 Carry out RCUT, GCUT, BCUT,
and Screen VR after checking
above-mentioned items
2 Carry out the setting of GDRV
and BDRV like the condition
mentioned on the left
3 Use a checker that can change
modulation factor to adjust
brightness
Adjust-
ing
2.4V(P-P)
±0.2V(P-P)
4 lines±
1.5 lines
1.40V(P-P)
±0.2V(P-P)
* P-P
value of
upper
half
1.90V(P-P)
±0.2(P-P)
* P-P
value of
upper
half
HIGH
2
(103cd/m
)
11500k +
0.0075uv
DARK
2
(17cd/m
)
10500k +
0.0105uv
* The range
of adjust-
ment is to
remain the
same as
what has
been set
until now.

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