SONY KV25FS120
Manual de Servicio

KV-20FS120/21FM120/21FS120/21FA310/24FS120/25FS120

Dynamic Convergence Adjustment
Before performing this adjustment, perform Horizontal and Vertical Static Convergence Adjustment. 1. Slightly loosen de�ection yoke screw. 2. Remove de�ection yoke spacers. 3. Move the de�ection yoke for best convergence as shown below:

BR R B TLH+ (R)(B) (B)(R) TLH4. Adjust XCV core to balance X axis. 5. Adjust YCH VR to balance Y axis. 6. Adjust vertical red and blue convergence with V.TILT (TLV VR.) Note: Perform adjustment 3-6 while tracking items 1 and 2.

RB G BR R G B B G R

G

RB G

G

BR

Screen-Corner Convergence
B G R R G B

1. Af�x a permalloy assembly corresponding to the misconverged areas:

b

a

a
BR G RB G G BR G RB

b

a-d: screen-corner misconvergence c d c d

4. Tighten the de�ection yoke screw. 5. Install the de�ection yoke spacers.

2-3. FOCUS
1. Adjust FOCUS control for best pictures.

TLH Plate Adjustment
1. Input crosshatch pattern. 2. Adjust PICTURE QUALITY to standard, PICTURE and BRIGHTNESS to 50%, and OTHER to standard. 3 Adjust the Horizontal Convergence of red and blue dots by tilting the TLH plate on the de�ection yoke.
RV1750 TLH Plate V.STAT

Focus (FV) Screen (G2)

CV Board

XCV YCH (TLV) (YHC, TLV) 20"/21" Models (TLV, XCV, YCH, TLV) 24"/25" Models

TLV

KV-20FS120/21FM120/21FS120/21FA310/24FS120/25FS120

15