H Blanking Adjustment - Sony TRINITRON BVM-14G1A Operation And Maintenance Manual

7. Set the color of the screen to green only (Turn on the
SHIFT button (LED lights up in orange), and turn on the
R button or B button (LED lights up (on the BKM-10R).)
8. Rotate the Purity knob, and adjust so that the green comes
to the center of the screen as shown in Fig. 1-4.
Fig. 1-4
9. Move DY backwards, and adjust so that the color of the
whole screen becomes green only.
10. Adjust the tilt of DY at cross hatch signal and tighten the
screw of DY.
11. Secure the deflection york with four (20 Inch), three (14
Inch) spacers.
DY spacer
Deflection youk
(For 14 inch model)
Fig. 1-5
• Final check
After adjusting, check that there is no mislanding when the
unit is faced in all four directions, north, south, east, west.

3-4. H Blanking Adjustment

• Preparations
1. Connect the signal generator and input the digital
monoscope signal.
2. Increase BRIGHT until the blanking can be seen.
Note: The following adjustment menus are under the E
BOARD menu of the MAINTENANCE menu.
H CENTER
H PHASE
H BLK PHASE
H BLK WIDTH
H SIZE
• 4:3 NORMAL SCAN Mode
1. Set the SCREEN MODE to 4:3 NORM at the INPUT
CONFIGURATION menu of the SETUP menu.
2. Decrease the H SIZE so that the whole left and right
edges of the luster can be seen.
Write down the original H SIZE data.
3. Maximize (255) the H BLK PHASE data and Minimam
(000) the H BLK WIDHT data.
4. Adjust the H CENTER data so that the luster comes to
the center of the screen (so that A B).
Write down the H CENTER data.
5. Adjust the H PHASE data so that the monoscope screen
comes to the center of the luster (so that C
Write down the H PHASE data.
Effective screen
Deflection range (luster)
Signal range
A
C
H CENTER: A
H PHASE: C
Fig. 1-6
D).
B
D
B
D
3-3