Panasonic CT-34WX50 Service Manual ▷ View online
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"V-SIZE" adjustment
When there is a monoscope pattern
"PCC" adjustment
Press the "Volume +, Volume - " buttons on the remote
control and adjust so that the position 4 lines to the top
from the center of the horizontal lines of the built-in cross-
hatch pattern ... (K) and the position 4 lines to the bottom
from the center... (L) becomes stable at the specified
control and adjust so that the position 4 lines to the top
from the center of the horizontal lines of the built-in cross-
hatch pattern ... (K) and the position 4 lines to the bottom
from the center... (L) becomes stable at the specified
value of the following table.
(mm)
Press the "Volume +, Volume - " buttons on the remote
control and adjust so that the top (
control and adjust so that the top (
) and the bottom (
’) of
the scale of the received monoscope pattern for each
aspect ratio becomes stable at the specified value of the
following table.
aspect ratio becomes stable at the specified value of the
following table.
(Scale)
When the vertical lines of the built-in cross-hatch pattern
show pincushion distortion (refer to the dotted lines in the
figure on the left), use the first and the third line on the
outside at the left and right as reference lines, press the
"Volume +, Volume - " buttons on the remote control and
adjust so that the reference lines become vertical lines.
show pincushion distortion (refer to the dotted lines in the
figure on the left), use the first and the third line on the
outside at the left and right as reference lines, press the
"Volume +, Volume - " buttons on the remote control and
adjust so that the reference lines become vertical lines.
NTSC FULL WARM
DEF ADJ
V-SIZE
DEF ADJ
V-SIZE
IIC
K
L
NTSC 4:3 WARM
DEF ADJ
V-SIZE
DEF ADJ
V-SIZE
NTSC FULL WARM
DEF ADJ
PCC
DEF ADJ
PCC
IIC
K
L
K+L
NTSC FULL
155
153
308
1080i
140
140
280
'
NTSC FULL
2.0±0.2
NTSC NORMAL
NTSC JUST
1.8±0.1
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"EW-CORNER TOP" adjustment
"EW-CORNER BOTTOM" adjustment
"V-S CORRECTION" adjustment
When the upper part of the vertical lines at the outer sides
of the built-in cross-hatch pattern shows distortion at the
top (refer to the dotted lines in the figure on the left), press
the "Volume +, Volume - " buttons on the remote control
and adjust so that the distorted lines become vertical
lines.
of the built-in cross-hatch pattern shows distortion at the
top (refer to the dotted lines in the figure on the left), press
the "Volume +, Volume - " buttons on the remote control
and adjust so that the distorted lines become vertical
lines.
When the lower part of the vertical lines at the outer sides
of the built-in cross-hatch pattern shows distortion at the
bottom (refer to the dotted lines in the figure on the left),
press the "Volume +, Volume - " buttons on the remote
control and adjust so that the distorted lines become verti-
cal lines.
of the built-in cross-hatch pattern shows distortion at the
bottom (refer to the dotted lines in the figure on the left),
press the "Volume +, Volume - " buttons on the remote
control and adjust so that the distorted lines become verti-
cal lines.
Press the "Volume +, Volume - " buttons on the remote
control and adjust so that the interval between adjacent
lines of the built-in cross-hatch pattern become uniform at
the center (N/O: Refer to the figure on the left) and at the
top and the bottom (M/P: Refer to the figure on the left).
control and adjust so that the interval between adjacent
lines of the built-in cross-hatch pattern become uniform at
the center (N/O: Refer to the figure on the left) and at the
top and the bottom (M/P: Refer to the figure on the left).
NTSC FULL WARM
DEF ADJ
EW-CORNER
DEF ADJ
EW-CORNER
TOP
IIC
NTSC FULL WARM
DEF ADJ
EW-CORNER
DEF ADJ
EW-CORNER
BOTTOM
IIC
NTSC FULL WARM
DEF ADJ
V-S CORRECTION
DEF ADJ
V-S CORRECTION
IIC
M
N
O
P
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Focus adjustment
(1) Receive a NTSC signal.
(2) Enter into service adjustment mode and select "DEF ADJ"
in Concurrent mode.
(3) Press the button "
" on the remote control and receive
the built-in cross-hatch pattern of this unit.
(4) Adjust the F1 control of the flyback transformer so that the
focus is balanced for the center line (vertical) of the cross-
hatch pattern and the vertical lines two lines from the
edge.
hatch pattern and the vertical lines two lines from the
edge.
(5) Adjust the F2 control of the flyback transformer so that the
center lines (horizontal) of the cross-hatch pattern are bal-
anced well.
anced well.
(6) Repeat the adjustments (4) and (5) until an optimum is
obtained.
(7) Receive an NTSC signal in "FULL" mode and confirm the
image.
NTSC FULL WARM
DEF ADJ
H-POSITION
DEF ADJ
H-POSITION
IIC
F2
F1
F1
F2
FOCUS
VOLUME 2
VOLUME 2
FOCUS
VOLUME 1
VOLUME 1
SCREEN
VOLUME
VOLUME
F1
S1
8
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