H Blanking Adjustment; Defection Adjustment; Dy Inclination Distortion Check - Sony TRINITRON PVM-14L2 Service Manual

2-8. H Blanking Adjustment

The following adjustment sub menus are located in the
layer under the DEFLECTION menu of the Service Mode.
RASTER H
H SIZE
H BLK LEFT
H POSITION
1. Connect the 480/60I cross hatch signal to the Y/G
terminal of RGB/COMPONENT IN connector.
2. Press the UNDER SCAN button to enter the under
scanned mode. (The UNDER SCAN button lights in
orange.)
3. Set the BRIGHT knob to MAX.
4. Enter the service mode.
5. Adjust [H|SIZE] of the menu until the entire raster
becomes visible on screen.
6. Adjust RV1501/G board so that the video signal size is
1 mm ± 1 mm against the raster size.
7. Adjust [H|POSITION] of the menu so that the video
signal size is 1 mm ± 1 mm against the BLK size.
8. Adjust [H|BLK|LEFT] of the menu so that the left-
most end of the raster matches with the left-most end
of the video display on screen.
9. Switch the input video signal to the 575/50I crosshatch
signal and repeat adjustment from steps 5 to 8 (exclud-
ing step 6 RV1501/G board adjustment) in the same
way as described above.
2-10

2-9. Defection Adjustment

Find the following adjustment menu in the layer under the
DEFLECTION menu of the service mode.
RASTER H GEOMETRY
H SIZE
H BLK LEFT
H POSITION
RASTER V
V SIZE
V CENTER
V BLK TOP
1. Connect the 480/60I cross hatch signal to the Y/G
terminal of RGB/COMPONENT IN connector.
2. Enter the service mode.
3. Select the 4:3 normal scan mode and check the
followings. (The 16:9 button and UNDER SCAN
button turn off.)

DY Inclination Distortion check

Top and bottom V PIN Distortion Check
If the specifications cannot be met, perform the DY
Neck Rotation Adjustment.
4. Perform the horizontal trapezoid distortion adjustment
using the TLY volume control of DY. If the horizontal
trapezoid distortion is difficult to see, select Green
Only mode. If the horizontal trapezoid distortion is
adjusted significantly, the top and bottom vertical
convergence will become out of adjustments.
5. Connect the 480/60I monoscope signal to the Y/G
terminal of RGB/COMPONENT IN connector.
6. Adjust [V|CENTER] of the menu until picture comes
to the center of the screen in the vertical direction.
7. Connect the 480/60I cross hatch signal to the Y/G
terminal of RGB/COMPONENT IN connector.
8. Adjust [V|SIZE], [V|C|LIN], [V|S|LIN] and
[H|SIZE] until the upper and lower halves of the
screen become symmetrical.
9. Adjust the trapezoidal distortion and PIN distortion of
screen using [PARA|CONTROL], [TRAPEZOID],
[SIDE|PIN|BAL], [SIDE|PIN], [SIDE|PIN S] and
[SIDE|PIN|W].
10. Repeat adjustments from step 7 to step 9 until all
specifications are satisfied at the same time. (Tracking)
11. Repeat adjustments from step 7 to step 9 starting from
the 4:3 UNDER SCAN mode, then 16:9 NORMAL
SCAN mode and finally 16:9 UNDER SCAN mode. (J/
UC)
12. Perform the same adjustment for the 575/50I video
signal.
V S LIN
V C LIN
TRAPEZOID
SIDE PIN
SIDE PIN W
SIDE PIN BAL
PARA CONTROL
SIDE PIN S
PVM-14L2/20L2