Panasonic CT-34WDM60 Service Manual ▷ View online
- 37 -
3. Adjustment in NTSC "ZOOM" mode
(1) Input an NTSC signal and set the aspect ratio to "ZOOM" mode.
(2) Enter into service adjustment mode and select "DEF ADJ" in IIC mode.
*When entering into IIC mode, the screen position and the amplitude become standard.
(3) Press the button "
" of the remote control and receive a built-in cross-hatch pattern of this unit.
Note: Use 10 key Remocon.
(4) For "H-POSITION", "H-SIZE", "SIDE-PCC", "H-PARALLEL", "V-POSITION", "PCC", "EW-CORNER
TOP", "EW-CORNER
BOTTOM", and "V-S CORRECTION", enter the same adjustment values as for the adjusted NTSC "FULL" mode with the "
,
" buttons on the remote control. (Refer to page 34)
(5) Check the center of the built-in cross-hatch pattern (center adjustment).
Select "V/H-POSITION", perform adjustment on the basis of the specified values, and match the center of the built-in cross-
hatch pattern.
hatch pattern.
*In case of problems with the vertical and/or H-SIZE,
select "V/H-SIZE" and adjust.
select "V/H-SIZE" and adjust.
*Center adjustment can be speeded up by using the
monoscope pattern of the unit generating the signal.
monoscope pattern of the unit generating the signal.
(6) Adjust the vertical lines.
When the vertical lines of the built-in cross-hatch pattern
are bow-shaped or show parallelogram distortion, select
"SIDE-PCC", "H-PARALLEL", and adjust so that the dis-
torted vertical lines become vertical to the horizontal
lines.
are bow-shaped or show parallelogram distortion, select
"SIDE-PCC", "H-PARALLEL", and adjust so that the dis-
torted vertical lines become vertical to the horizontal
lines.
(7) Adjust the horizontal lines.
When the interval between two neighboring horizontal
lines of the built-in cross-hatch pattern is not uniform,
select "V-LINEARITY", "V-S CORRECTION", and adjust
for a good balance of the interval between the horizontal
lines.
lines of the built-in cross-hatch pattern is not uniform,
select "V-LINEARITY", "V-S CORRECTION", and adjust
for a good balance of the interval between the horizontal
lines.
(8) Check the image geometry.
When the geometry of the built-in cross-hatch pattern
shows pincushion distortion or distortion at the top or
bottom, select "PCC", "EW-CORNER TOP", or "EW-
CORNER BOTTOM", and adjust so that the distorted
vertical lines become straight lines.
shows pincushion distortion or distortion at the top or
bottom, select "PCC", "EW-CORNER TOP", or "EW-
CORNER BOTTOM", and adjust so that the distorted
vertical lines become straight lines.
(9) After completion of adjustment, end the service adjustment mode, input an NTSC signal in "ZOOM" aspect ratio, and confirm
the image.
8
Adjustment methods (specified values)
*"V-POSITION" adjustment method
→
Refer to page 42.
*H-POSITION" adjustment method
→
Refer to page 40.
*"V-SIZE" adjustment method
→
Refer to page 43.
*"SIDE-PCC" adjustment method
→
Refer to page 41.
*"H-PARALLEL" adjustment method
→
Refer to page 41.
*"V-LINEARITY" adjustment method
→
Refer to page 42.
*"V-S CORRECTION" adjustment method
→
Refer to page 44.
*"PCC" adjustment method
→
Refer to page 43.
*"EW-CORNER TOP" adjustment method
→
Refer to page 44.
*"EW-CORNER BOTTOM" adjustment method
→
Refer to page
44.
% !"#$
- 38 -
4. Adjustment in NTSC "JUST" mode
(1) Input an NTSC signal and set the aspect ratio to "JUST" mode.
(2) Enter into service adjustment mode and select "DEF ADJ" in IIC mode.
(3) For "H-POSITION", "SIDE-PCC", "H-PARALLEL", "V-POSITION", "TRAPEZOID", and "PCC", enter the same adjustment val-
ues as for the adjusted NTSC "FULL" mode with the "
,
" buttons on the remote control. (Refer to page 34)
(4) Press the button "
" on the remote control and receive the built-in cross-hatch pattern of this unit.
Note: Use 10 key Remocon.
(5) Check the center of the built-in cross-hatch pattern (center adjustment).
Select "V/H-POSITION", perform adjustment on the basis of the specified values, and match the center of the built-in cross-
hatch pattern.
hatch pattern.
*In case of problems with the vertical and/or horizontal amplitude, select "V/H-SIZE" and adjust.
*Center adjustment (V/H-SIZE) can be speeded up by
using the monoscope pattern of the unit generating the
signal.
using the monoscope pattern of the unit generating the
signal.
(6) Check the image geometry.
When the geometry of the built-in cross-hatch pattern
shows pincushion distortion or distortion at the top or
bottom, select "PCC", "EW-CORNER TOP", or "EW-
CORNER BOTTOM", and adjust so that the distorted
vertical lines become straight lines.
shows pincushion distortion or distortion at the top or
bottom, select "PCC", "EW-CORNER TOP", or "EW-
CORNER BOTTOM", and adjust so that the distorted
vertical lines become straight lines.
(7) After completion of adjustment, end the service adjust-
ment mode, input an NTSC signal in "JUST" mode for
the aspect ratio, and confirm the image.
the aspect ratio, and confirm the image.
8
Adjustment methods (specified values)
*"V-POSITION" adjustment method
→
Refer to page 42.
*"H-POSITION" adjustment method
→
Refer to page 40.
*"V-SIZE" adjustment method
→
Refer to page 43.
*"H-SIZE" adjustment method
→
Refer to page 40.
*"PCC" adjustment method
→
Refer to page 43.
*"EW-CORNER TOP" adjustment method
→
Refer to page 44.
*"EW-CORNER BOTTOM" adjustment method
→
Refer to page
44.
& !"#$
- 39 -
5. 1080i adjustment
(1) Input a 1080i.
(2) Enter into service adjustment mode and select "DEF ADJ" in IIC mode.
(3) Press the button "
" on the remote control and receive the built-in 1080i cross-hatch pattern of this unit.
Note: Use 10 key Remocon.
(4) First, match the center of the built-in cross-hatch pattern
(center adjustment)
Select "V/H-POSITION", perform adjustment on the basis
of the specified values, and match the center of the built-in
cross-hatch pattern.
Select "V/H-POSITION", perform adjustment on the basis
of the specified values, and match the center of the built-in
cross-hatch pattern.
*In case of problems with the vertical and/or H-SIZE,
select "V/H-SIZE" and adjust.
select "V/H-SIZE" and adjust.
(5) Adjust the vertical lines.
When the vertical lines of the built-in cross-hatch pattern
are bow-shaped or show parallelogram distortion, select
"SIDE-PCC", "H-PARALLEL", and adjust so that the dis-
torted vertical lines become vertical to the horizontal lines.
are bow-shaped or show parallelogram distortion, select
"SIDE-PCC", "H-PARALLEL", and adjust so that the dis-
torted vertical lines become vertical to the horizontal lines.
(6) Adjust the horizontal lines.
When the interval between two neighboring horizontal
lines of the built-in cross-hatch pattern is not uniform,
select "V-LINEARITY", "V-S CORRECTION", and adjust
for a good balance of the interval between the horizontal
lines.
lines of the built-in cross-hatch pattern is not uniform,
select "V-LINEARITY", "V-S CORRECTION", and adjust
for a good balance of the interval between the horizontal
lines.
*When "V-LINEARITY", "V-S CORRECTION" adjustment
is performed, the horizontal lines of the built-in cross-
hatch pattern are adjusted to the top (bottom), so that the
position of the screen center changes. Accordingly, the
center adjustment must be adjusted again after comple-
tion of the adjustment. (Only V-POSITION, amplitude)
is performed, the horizontal lines of the built-in cross-
hatch pattern are adjusted to the top (bottom), so that the
position of the screen center changes. Accordingly, the
center adjustment must be adjusted again after comple-
tion of the adjustment. (Only V-POSITION, amplitude)
(7) Perform adjustment of the image geometry.
When the geometry of the built-in cross-hatch pattern
shows pincushion distortion or distortion at the top or bot-
tom, select "PCC", "EW-CORNER TOP", or "EW-COR-
NER BOTTOM", and adjust so that the distorted vertical
lines become straight lines.
shows pincushion distortion or distortion at the top or bot-
tom, select "PCC", "EW-CORNER TOP", or "EW-COR-
NER BOTTOM", and adjust so that the distorted vertical
lines become straight lines.
*Adjust so that the adjustment value for "EW-CORNER
TOP" and "EW-CORNER BOTTOM" becomes a value
from 5 to 11.
TOP" and "EW-CORNER BOTTOM" becomes a value
from 5 to 11.
(8) After completion of adjustment, end the service adjustment mode, input a 1080i, and confirm the image.
8
Adjustment methods (specified values)
*"V-POSITION" adjustment method
→
Refer to page 42.
*"H-POSITION" adjustment method
→
Refer to page 40.
*"V-SIZE" adjustment method
→
Refer to page 43.
*"H-SIZE" adjustment method
→
Refer to page 40.
*"SIDE-PCC" adjustment method
→
Refer to page 41.
*"H-PARALLEL" adjustment method
→
Refer to page 41.
*"V-LINEARITY" adjustment method
→
Refer to page 42.
*"V-S CORRECTION" adjustment method
→
Refer to page 44.
*"PCC" adjustment method
→
Refer to page 43.
*"EW-CORNER TOP" adjustment method
→
Refer to page 44.
*"EW-CORNER BOTTOM" adjustment method
→
Refer to
page 44.
' !"#$
- 40 -
•
"H-POSITION" adjustment
•
"H-SIZE" adjustment
•
When there is a monoscope pattern
→
Press the "
,
" buttons on the remote control and
adjust so that the center of the vertical lines of the built-in
cross-hatch pattern becomes stable at the specified value
of the following table.
cross-hatch pattern becomes stable at the specified value
of the following table.
(mm)
→
Press the "
,
" buttons on the remote control and
adjust so that the position 5 lines to the left from the cen-
ter of the vertical lines of the built-in cross-hatch pattern...
(C) and the position 5 lines to the right from the center...
(D) becomes stable at the specified value of the following
table.
ter of the vertical lines of the built-in cross-hatch pattern...
(C) and the position 5 lines to the right from the center...
(D) becomes stable at the specified value of the following
table.
(mm)
→
Press the "
,
" buttons on the remote control and
adjust so that the left (
α
and the right (
α
’) end of the scale
at the sides 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)
NTSC FULL WARM
DEF ADJ
H-POSITION
DEF ADJ
H-POSITION
IIC
A
B
NTSC FULL WARM
DEF ADJ
H-SIZE
DEF ADJ
H-SIZE
IIC
C
D
NTSC 4:3 WARM
DEF ADJ
H-SIZE
DEF ADJ
H-SIZE
A
B
NTSC FULL
395
355
1080i
380
330
C
D
NTSC FULL
282
285
1080i
285
275
α=α
’
NTSC FULL
2.5±0.1
NTSC ZOOM
2.5±0.2
NTSC JUST
2.8±0.1
6. Adjustment methods for distortion correction
!"#$
Click on the first or last page to see other CT-34WDM60 service manuals if exist.