Deflection Yoke Neck Rotation Adjustment; Convergence Adjustment (2) - Sony TRINITRON PVM-14L2 Service Manual
Color video monitor
Hide thumbs
Also See for TRINITRON PVM-14L2:
- Service manual (140 pages) ,
- Instructions for use manual (112 pages) ,
- Pocket manual (5 pages)
Table of Contents
Advertisement
2-11. Deflection Yoke Neck Rotation
Adjustment
1. If there are mis-convergence on both sides of X and Y
axes, move the DY neck in the direction of the arrow
so that the degree of mis-convergence satisfies the
allowable range of specification over the entire screen.
* Applicable only to groups of models inch 14.
(1) Reverse cross
mis-convergencepattern
Move the deflection yoke
downward.
B G R
R
B
G
G
B
R
R G B
Fig. 2-18
(3) Pattern of left-sided
deflection yoke
Move the deflection
yoke to the right when
viewed from the CRT
screen.
L
L
R
B
B
R
Fig. 2-20
Fig. 2-23
2. Turn the neck of the deflection yoke to align the V pin
vertically.
* Applicable only to group of models inch 20.
3. Insert the wedge between the deflection yoke and CRT
funnel to lock the deflection yoke. (Fig.2-24)
Inch 14
Fig. 2-24
PVM-14L2/20L2
(2) Cross
mis-convergence pattern
Move the deflection yoke
upward.
R G B
B
R
G
G
R
B
B G R
Fig. 2-19
(4) Pattern of right-sided
deflection yoke
Move the deflection
yoke to the left when
viewed from the CRT
screen.
L
L
B
R
R
B
Fig. 2-21
2 zone
1 zone
Inch 20
4. The following patterns cannot be corrected by turning
the neck. (Figs.2-25, 2-26, and 2-27)
R G B
R
B
G
G
B
R
R G B
Fig. 2-25
G
(G)
(G)
G
R
R
B
B
Fig. 2-26
G
R B
(G)
(G)
R B
G
Fig. 2-27
2-12. Convergence Adjustment (2)
YCH
G
B
R
TLV
R
G
B
R
G
B
TLH
G
G
R B
B R
Fig. 2-28 Convergence compensation VR, coil, and
compensator
n
When adjustment is insufficient, use permalloy.
After the adjustment, use paint lock.
* Gun rotation
The X-axis and Y-axis
beams are distorted on
both sides.
* HCR Large (small)
The horizontal portion of the
G raster is wider (narrower)
than that of the RB raster on
both sides of the screen.
* VCR Large (small)
The vertical portion of the
G raster is wider (narrower)
than that of the RB raster on
both sides of the screen.
XCV
B
G
R
YBH
G
R
B
2-13
Hide quick links:
Advertisement
Table of Contents
