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Convergence Adjustments; Convergence Of A 4:3-aspect Normal Picture - Sony BVM-1911 Operation And Maintenance Manual

Trinitron color video monitor.
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1-5. Convergence Adjustments
For the convergence adjustment, use the CONVERGENCE controls
on the DC board inside the drawer. Use the supplied screwdriver to
turn these controls.
1-5-1. Convergence of a 4:3-Aspect Normal Picture
Adjust the convergence of 4:3 scan mode using the 4:3 controls.
VERTICAL
CONVERGENCE
HORIZONTAL
16 9
4 3
16 9
16 9
4 3
16 9
r-s ---,-2-0"""'
r-:-s ---,-2---,-0°""'
TOP-0 000
0 0 000
0
0 000
0 0 000
0
4
1
7
4
1
7
0 000
0 0 000
0
0 000
0 0 000
0
5
3
9
5
3
9
BOTTOM-0
000
0 0 000
0
I
I
I
I
LEFT
L
C
R
RIGHT LEFT
L
C
R
RIGHT
DC board
4: 3 16 9
UND
00y BOW
004
3UND
L
R H AMP
• Numbers 1 to 9 in the illustration above refer to the sequence of
operations.
• The HO RIZO NT AL controls adjust the convergence horizontally,
and the VERTICAL controls adjust it vertically.
• When adjusting the convergence, observe the portion of the screen
indicated by arrows in the figures on the subsequent pages. The red
and blue beams move symmetrically to the green beam.
1. Operation
11-43

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