Mitsubishi Electronics XL21, XL50 installation manual Clamp START=0, Clamp WIDTH=0. Procedure

1.7.4.8. H.TOTAL (for S.ANALOG input)

This adjustment is normally unnecessary. The optimum value is automatically set in automatic input signal scanning.

Used to adjust a total horizontal dot number of an input signal. Incorrect H.TOTAL value makes vertical striped noises or jitter noises on an image, or whole effective area cannot be displayed even after the image position adjustment.

[Procedure]

1.Select H.TOTAL in the input memory menu (on the 3rd menu sheet).

2.Adjust to eliminate the vertical stripe noises by left/right button.

3.If the horizontal position shifts after the adjustment, adjust H.POSITION (chapter 1.7.4.1, on page 58) again.

1.7.4.9. CLAMP (for S.ANALOG input)

This adjustment is normally unnecessary. The optimum value is automatically set in automatic input signal scanning.

Used to adjust a clamp pulse position and the width according to the timing of an input signal. Incorrect CLAMP setting makes whole image darkened and uneven horizontal brightness appears on the image. CLAMP is automatically set to the optimum value when you set

CLAMP START=0, CLAMP WIDTH=0. [Procedure]

1.Select CLAMP START in the input memory menu (on the 3rd menu sheet).

2.Adjust the clamp pulse start position.

3.Select CLAMP WIDTH in the input memory menu (on the 3rd menu sheet).

4.Adjust the clamp pulse width.

1.7.4.10. MASK (for S.ANALOG input)

This adjustment is normally unnecessary. The optimum value is automatically set in automatic input signal scanning.

Used to adjust when the upper or lower part of an image is distorted while 3-line signal (sync on green) or 4-line signal (composite sync) input.

[Procedure]

1.Select MASK START in the input memory menu (on the 3rd menu sheet).

2.Set the maximum value that resolves the image distortion.

3.Select MASK END in the input memory menu (on the 3rd menu sheet).

4.Set the minimum value that resolves the image distortion.

REV 2.4

61