Philips TC5.1U CA, Руководство по обслуживанию

Страница: 16 / 26

Alignments EN 16 TC5.1U CA 8.
8.4 Screen & Focus Voltage Adjustment
1. Apply the test pattern signal in normal status.
2. Enter the Factory mode
3. Press the "AV/CH" button to stop the vertical scan (Note:
the RC/GC/BC is preset to 80, GD/BD to 40)
4. Adjust the SCREEN potentiometer on the line output
transformer in such a way the horizontal line is just visible
on the screen.
5. Turn on the vertical output, and adjust the "FOCUS"
potentiometer on the line output transformer in such a way
the focus is maximized.
8.5 White Balance Adjustment (NORMAL)
1. Apply the black and white pattern in normal status.
2. Alignment of the normal color temperature
a.
Change the Color Temperature to the normal status
b. Use a color analyzer to measure the black side of the
screen.
c. By changing the value of RC, GC and BC, set the
reading of the color analyzer to PHILIPS standard
–
x=285+/-4
– y=296+/-4.
d. Use a color analyzer to measure the white side of the
screen.
e. By changing the value of GD, BD, set the reading of the
color analyzer to PHILIPS standard
–
x=285+/-4
– y=296+/-4.
f. Separately set the brightness and contrast from
minimum to maximum, repeat the step -b- up to and
including -e- until the reading of the color analyzer is
correct.
The PHILIPS standard is:
–
Warm:X=315+/-10, Y=321+/-10
– Cool:X=269+/-10, Y=275+/-10
8.6 Adjustment of Sub-brightness
1. Apply the Grey-scale / Color bar (NTSC signal) to the AV
input, in normal status.
2. Enter factory alignment menu 5.
3. Select BRTC
4. Adjust the sub-brightness, until the 2nd dark bar of 8 level
Grey scales can just be seen.
8.7 Picture Geometry Adjustment
1. Apply the Philips standard testing pattern in normal status
2. Then enter menu 3
3. Adjust the following data to get the minimum distortion:
a.
HPOS6 (Horizontal Centre)
b. PARA6 (Level)
c. TRAP6 (Trapezium)
d. HSIZE6 (Horizontal Size)
e. CNRT6 (Top)
f. CNRB6 (Bottom)
4. Apply the Philips standard testing pattern in normal status.
5. Enter menu 3.
6. Adjust the following data to get the minimum distortion:
a.
HIGH6 (Height)
b. VP60 (Vertical Center)
c. VLIN6 (Linearity)
d. VSC6 (Vertical-S Correction)