Sony KV-34SL45, KV 32S40, KV 32S45, KV 35S45, KV 32V65, KV 35S40, KV-37VL65 White Balance Adjustments

KV-32S40/32S45/34SL40/34SL40C/34SL40T/34SL45/35S40/35S45/37SL45/ 32V40/32V65/34VL65/34VL65C/35V65/37VL65/37VL65C

( 2 ) Dynamic Convergence Adjustment

•Before starting, perform Horizontal and Vertical Static Convergence Adjustment.

1.Slightly loosen deflection yoke screw.

2.Remove deflection yoke spacers.

3.Move the deflection yoke for best convergence as shown below:

R BG R B

G G

B RG B R B G R R G B

R G B B G R

B RG B R

GG R B G R B

4.Tighten the deflection yoke screw.

5.Install the deflection yoke spacers.

(3)Screen-corner Convergence

Affix a permalloy assembly corresponding to the misconverged areas:

b

a

ba

a-d : screen-corner misconvergence

cd

dc

3-3. FOCUS

Adjust FOCUS control for best picture.

3-4. SCREEN (G2)

1.Input dot pattern from the pattern generator.

2.Set the PICTURE and BRIGHT controls at normal.

3.Adjust S BRT, G CUT, B CUT in service mode with an oscilloscope so that voltages on the red, green, and blue cathodes are 170Vdc for 35"/37" and 180Vdc for 32"/34".

4.Observe the screen and adjust SCREEN (G2) VR

to obtain the faintly visible background of dot signal.

	N	N
170 V dc/ 180 V dc pedestal
GND	N

3-5. WHITE BALANCE ADJUSTMENTS

NO.	Disp.	Item	Avg/32"	Avg/35"
16	GDRV	Green Drive	33	45
17	BDRV	Blue Drive	33	45
18	GCUT	Green Cut-off	3	6
19	BCUT	Blue Cut-off	2	6
23	SBRT	Sub Bright	14	10

1.Input an entire white signal.

2.Set to Service adjustment Mode.

3.Set DCOL to "0"

4.Set the PICTURE and BRIGHT to minimum.

5.Adjust with SBRT if necessary.

6.Select GCUT and BCUT with 1 and 4 .

7.Adjust with 3 and 6 for the best white balance.

8.Set the PICTURE and BRIGHT to maximum.

9.Select GDRV and BDRV with 1 and 4 .

10.Adjust with 3 and 6 for the best white balance.

11.Reset DCOL to "1".

12. Write into the memory by pressing then **.

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