LC-M3700 (serv.man7). (7) Adjustment procedures - Sharp TV Service Manual (repair manual). Page 9

3) Component 15K white balance adjustment

Adjustment item

Adjustment condition

Adjusting method

Signal input

Using a signal generator, feed component 15K signal
(525i) window patterns (in-window 20IRE) to the
video input terminal of INPUT3.  Y input only is
sufficient.

20IRE

1

Setting

2

R CUTOFF adjustment

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COMP 15k R CUTOFF

1. On the R CUTOFF item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window

becomes brightest.

3

G CUTOFF adjustment

COMP 15k G CUTOFF

1. On the G CUTOFF item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window

becomes brightest.

4

B CUTOFF adjustment

COMP 15k B CUTOFF

1. On the B CUTOFF item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window

becomes brightest.

5

Setting

Change the in-window white level of the window
pattern from the signal generator to 80IRE.

80IRE

6

R DRIVE adjustment

COMP 15k R DRIVE

1. On the R DRIVE item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window

becomes brightest.

7

G DRIVE adjustment

COMP 15k G DRIVE

1. On the G DRIVE item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window

becomes brightest.

8

B DRIVE adjustment

COMP 15k B DRIVE

1. On the B DRIVE item, press the ENTER key to

display the special gamma.

2. Adjust the value so that the color in the window

becomes brightest.

9

Setting

On the item, press the ENTER key again to make the
special gamma disappear.

Set the input to INPUT3 component.

After performing steps 1 to 3 and 6 to 8, repeat adjustment so that the color becomes brightest for both 20IRE and 80IRE.