Toshiba 43PH46P, Service Manual

Page: 19 / 78

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Items
Names
Settings
Input signals
Measur
ing points
Adjusting methods
Adjusting standards
Adjustment
Picture mode 1
Philips Pattern
Screen
100Hz
(P
AL-I)
adjustment
Adjustment
Picture mode 1
Philips Pattern
Screen
1) Adjustbthe vertical and horizontal screen positions using
the centering magnet so that the center cross mark of the dummy screen and the cross mark of the Philips pattern can
overlap
precisely.
This will be carried out individually for the tubes of R, G, and B. (Caution) Do not move the HPOS and VPOS data.
of centering
100Hz
(P
AL-I)
adjustment
magnet
HIT
V
er
tical
Picture mode 1
Philips P
atter
n
1)
Shor
ten the v
er
tical amplitude b
y HIT data until the upper and
VLIN
amplitude
100Hz
(P
AL-I)
lo
wer flags appear on the screen.
adjustment
CMUT
-ON
2)
The amplitude should be balanced v
er
tically
. If not, adjust
VLIN.
3)
Subsequently
, lengthen the v
er
tical amplitude b
y HIT data until
either upper or lo
w
er flag end is aligned with the screen end.
WID
Hor
iz
ontal
Picture mode 1
Philips P
atter
n
Screen
1)
Lo
wer the
WID data in the beginning, and shor
ten the amplitude
9 ± 1 flags CMUT-ON 7 ± 1 flags CMUT-OFF Left+Right 6 ± 1 flags CMUT-OFF
amplitude
100Hz
(P
AL-I)
Philips P
atter
n
(P
AL-I)
adjustment Screen adjustment
hor
iz
ontally until the left and right flags appear completely
.
adjustment
CMUT
-ON
2)
Lengthen the hor
iz
ontal amplitude b
y
WID data so that the
number of register mar
ks will come to 9 in total (each 4.5 flags
at the left and right sides)
.
NHIT
V
er
tical
Picture mode 1
Monoscope
Screen
1)
The upper first one on the screen is to be hidden b
y the mask.
NLIN
amplitude
120Hz
signal NTSC
adjustment
2)
The amplitude should be balanced v
er
tically
.
adjustment NTSC
NWID
V
er
tical
Picture mode 1
Monoscope
Screen
1)
Adjust the 3rd left register mar
k to the left screen edge
.
amplitude
120Hz
signal NTSC
adjustment
adjustment NTSC
NSHI
Ver
tical
Picture mode 1
Monoscope
Screen
1) Adjust the upper screen so that it may contact the 16:9 frame.
amplitude
120Hz 16:9mode 16:9mode CMUT-ON
signal NTSC
adjustment
adjustment NTSC
SHIT
V
er
tical
Picture mode 1
Screen
1) Adjust the upper screen so that it may contact the 16:9 frame.
amplitude
100Hz
adjustment
adjustment
of DY tilt
1) After adjustment of G position coarsely using the centering
magnet, adjust DY so that the center cross mark of the dummy screen and the cross mark of
Philip
pattern can approach
mutually. 2)
Adjusts the DY tilt of R and B as same manner as above step 1).
Differential of dummy screen cross mark and Philips pattern cross mark Within
5
mm
Color gap of center screen Within
3mm