Video Ntsc Level Adjustments; Video Pal Level Adjustments; Y/Pb/Pr Level Adjustments - Sony VPL-PX20 Service Manual

12. Press the ENTER key to select the SAVE TO
MEMORY of the menu, and press the ENTER key
again to save the data.

4-4-2. VIDEO NTSC Level Adjustments

1. Set the Color to 40. Input the NTSC 100% Color bar
signal to the VIDEO input, and switch the input to
VIDEO.
The RGB MATRIX of device adjust of the menu is
set.
2. Connect the oscilloscope to TP612 on the C board.
3. Select 12 YUV COL, and adjust the ← and → keys so
that the levels of the right bar and left bar become the
same.
4. Select 05 SUB HUE, and adjust the ← and → keys so
that the two bars at the center become flat.
5. Press the ENTER key to select the SAVE TO
MEMORY of the menu, and press the ENTER key
again to save the data.
4-2

4-4-3. VIDEO PAL Level Adjustments

1. Set the Color to 40. Input the PAL 100% Color bar signal
2. Connect the oscilloscope to TP612 on the C board.
3. Select 12 YUV COL, and adjust the ← and → keys so
15k Component
color bar
chroma ON
4. Select 04 SUB HUE, and adjust the ← and → keys so
5. Press the ENTER key to select the SAVE TO

4-4-4. Y/PB/PR Level Adjustments

1. Input the HDVS (1080/60i) 100% Color bar (YPbPr)
2. Set RGB MATRIX of Device adjust on the menu.
3. Select 11 YUV COM, and adjust using the ← and →
NTSC 100%
4. Select 12 YUV COL, and adjust using the ← and →
color bar
5. Select 04 SUB HUE, and adjust using the ← and →
6. Press the ENTER key to select the SAVE TO
to the VIDEO input.
BA MATRIX of device adjust on the menu is set.
that the levels of the right bar and left bar become the
same.
that the two bars at the center become flat.
MEMORY of the menu, and press the ENTER key
again to save the data.
signal to INPUT-A, select INPUT-A, and select Y/PB/
PR using SIGNAL SELECT.
keys so that the level of the left bar becomes the same
as the level of the cursor at the top.
keys so that the levels of the right bar and left bar
become the same.
keys so that the two bars at the center become flat.
MEMORY of the menu, and press the ENTER key
again to save the data.
PAL 100%
color bar
1080/60i 100%
color bar
VPL-PX20/PX30