Focus Adjustment - Sony KV-G21M2 Service Manual

KV-G21M2
RM-869
(2) Dynamic Convergence Adjustment
Preparation :
•
Before starting this adjustment, adjust the horizontal static
convergence and the vertical static convergence.
1. Slightly loosen the deflection yoke screws.
2. Remove the deflection yoke spacer.
3. Move the deflection yoke as shown in the figure below and
optimize the convergence.
4. Tighten the deflection yoke screws.
5. Install the deflection yoke spacer.
(3) Screen-corner Convergence
b
c
Fix a Permalloy assy
corresponding to the
misconverged areas
R
a
a-d : screen-corner
misconvergence
d
b
a to d : Permalloy assembly
G B B G R

3-3. FOCUS ADJUSTMENT

Adjust FOCUS control on the flyback transformer for the best
focus.
Note: Screen VR is not used.
– 14 –
R B
B G R
G G
R G B
B R
B
B R
R G B
G G
B G R
R B
FOCUS
SCREEN
(NOT USED)
G R R G B