Deflection Adjustment - Zenith R50W46 Service Manual

6. Deflection Adjustment

6-1. Preliminary steps
After adjusting the NTSC first, 1080i it adjust.
6-2. NTSC Adjustment
(1) Preliminary steps
1) Select INSTART key on the Service Remote and then
select "0 RASTER ADJ" move the cursor or using the
key No..
2) Make Green raster using lens cover.
(2) Adjustment
1) Select the below each mode using CHD, CHE on the
Service Remote Control and adjust using VOLG, VOLF.
2) Check the H POSI, V POSI is 21, 38 and When is
wrong, adjust each at corresponding price.
3) Does not adjust H, V Position in the NTSC Mode, adjust
with centering magnet.
4) H SIZE : Horizontal SIZE Adjustment
Adjust until third line of circle outermost horizontal size
is accord with the edge of the frame.
5) V-SIZE : Vertical SIZE Adjustment
Adjust until fifth Vertical BAR from upper and lower
center of the screen is accord with the last point of the
frame.
6) UP VLI : Upper Vertical Linearity Adjustment
Adjust the vertical interval of screen upper.
7) LO VLI : Lower Vertical Linearity Adjustment
Adjust the vertical interval of screen lower.
8) PIN PH : Horizontal Trapezoid Fixation
Adjust the horizontal width of screen upper and lower is
to be same.
ADJUSTMENT INSTRUCTIONS
Fifth Vertical BAR
Third line
Fig. 3
9) PIN AM : Horizontal PARABOLA Correction
Adjust the vertical line of most angle lattice of right/ left
of screen to be balance with vertical line of center of
screen.
10) V LIN : Vertical Linearity Adjustment
Adjust the vertical size of the screen to be same with
upper and lower.
11) S CORR : S Correction
Adjust the each lattice width Top/Center/Bottom of
screen to be identical.
12) UP CPI : Upper Pincushion Correction
Adjust the pincushion of upper of screen
13) LO CPI : Lower Pincushion Correction
Adjust the pincushion of lower of screen
14) After adjustment complete, exit the RASTER
adjustment mode using ENTER key and exit the SVC
adjustment mode using INSTART key.
6-3. 1080i Adjustment
(1) Test Equipment
SETTOP BOX with 1080i output
(2) Preliminary steps
1) After adjust 1080i with output of the SETTOP BOX,
connects the Y signal which is output from SETTOP
BOX with the VIDEO input terminal of the SIDE-
AV(AV3).
2) Select INSTART key on the Remote Control and then
select "8 1080I-ADJ" move the cursor or using the key
No..
Connected to AV3 is 1080i the black/white signal
appears in the screen.
3) Select INSTART key on the Remote Control and then
select "0 RASTER ADJ" move the cursor or using the
key No..
4) Make Green raster using lens cover.
(3) Adjustment
1) Select the below each mode using CHD, CHE on the
Remote Control and adjust using VOLG, VOLF.
2) H POSI : Horizontal Position Adjustment
Adjust so that the horizontal center line of screen is in
accord with geometric horizontal center line of the
screen JIG.
3) V POSI : Vertical Position Adjustment
Adjust so that the vertical center line of screen is in accord
with geometric vertical center line of the screen JIG.
4) H SIZE : Horizontal SIZE Adjustment
Adjust until third line of circle outermost horizontal size
is accord with the edge of the frame.
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