Adjustment Of Video Sub Hue And Color - Sony VPL-S900U Service Manual

2. COMPOSITE VIDEO Adjustment
1. Reduce the Color to MIN.
2. Connect the NTSC 100% color bar signal to the VIDEO.
3. Adjust the CXA1839 CONTRAST and BRIGHT until
signal level at TP5104 satisfies the specifications.
4. Save the adjustment value.
5. Connect the PAL 100% color bar signal to the VIDEO.
6. Adjust the CXA1839 CONTRAST and BRIGHT until
signal level at TP5104 satisfies the specifications.
7. Memorize the adjustment value.
8. Return the Color to 50.
VIDEO LEVEL specifications
TP5014
0 IRE 2.00 ± 0.05 V dc
100 IRE 2.90 ± 0.05 Vdc
3-2-3. Adjustment of VIDEO SUB HUE and
COLOR
1. Set both VIDEO and INPUT A to Color to 40.
2. Set "b = c" by means of CXA1839 SUB HUE so that the
level of TP5104 will be within the specification.
Set "a = d" by means of CXA1839 VIDEO COLOR
or YUV COLOR.
Adjust the tracking of the above two items.
3. Save the adjustment value.
Adjust NTSC, PAL, and Component, respectively.
Adjust PAL only by VIDEO COLOR.
Adjust the Component only by YUV COLOR.
4. Return the Color back to 50.
Specifications for VIDEO COLOR HUE adjustment:
a b
TP5104: a = b ± 10%
3-2
c d
VPL-S900E, VPL-S900M, VPL-S900U