H Blanking Adjustment - Sony TRINITRON PVM-14L5 Service Manual

20 inch
Fig. 2-11
Purity control
Fig. 2-12
n
Attach the magnets inside the NTC for the model PVM-
20L4 referring to Fig. 2-13.
25mm
6-pole magnet
(Move it to the top-most position)
Install it so that the magnet
comes to the top-most position.
Fig. 2-13
PVM-14L5/20L5/D14L5A/D20L5A

2-8. H Blanking Adjustment

1. Connect the 480/60I cross hatch signal to the Y/G
2. Press the UNDER SCAN button to enter the under
3. Press the (+) plus button of BRIGHT to set the
4. Enter the service mode.
5. Adjust [H|SIZE] of the menu until the entire raster
6. Adjust [H|BLK|RIGHT] of the menu so that the left-
Purity
7. Adjust [H|POSITION] of the menu so that the right-
8. Adjust [H|BLK|LEFT] of the menu so that the left-
9. Adjust [H|CENTER] of the menu so that the amount
Deflection yoke
10. Press the UNDER SCAN button to exit the under
11. Adjust [H|SIZE] of the menu until the entire raster
12. Adjust [H|BLK|RIGHT] of the menu so that the left-
13. Adjust [H|BLK|LEFT] of the menu so that the right-
14. Adjust [H|POSITION] of the menu so that center of
15. Change the input signal frequency arbitrarily and
16. Select the various signal frequencies and repeat
RASTER H
H SIZE
H CENTER
H POSITION
H BLK LEFT
H BLK RIGHT
terminal of RGB/COMPONENT IN connector.
scanned mode. (The UNDER SCAN button lights in
orange.)
brightness to MAX.
becomes visible on screen.
most end of raster is just before starting to fold back
on screen.
most end of the raster matches with the right-most end
of the video display on screen.
most end of the raster matches with the left-most end
of the video display on screen.
of over-scanned raster is unity in the right and left of
the effective area of CRT.
scanned mode. (The UNDER SCAN button lights in
green.)
becomes visible on screen.
most end of raster is just before starting to fold back
on screen.
most end of raster is just before starting to fold back
on screen.
the effective screen matches with the center of the
video display on screen.
change the [H|CENTER] value that is adjusted in
step 9.
adjustment from steps 5 to 8 in the same way as
described above.
2-19