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Tv Set Alignment - NEC DTE-29U1TH Service Manual

68 cm stereo color television
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Service Manual CP-785F

3-3 TV set Alignment

3-3-1 - G2 alignment
- TV in AV mode without video signal
- TV preset with WP Red, WP Green and WP Blue equal to 32.
- TV preset with Black R, Black G equal to 32.
- Set TV in NORMAL I mode
- Adjust screen volume ( on FBT ) such that the highest cathod cut-off voltage measured on CRT
board, is V cut off
Screen size
25
29
3-3-2 - White balance
- Select a dark picture and adjust Black G and Black R to the desired colour temperature.
- Select a bright picture and adjust WP Red, WP Green, WP Blue to the desired colour
temperature.
3-3-3 - Focus
- Adjust the Focus volume ( on FBT ) to have the best resolution on screen.
3-3-4 - Vertical geometry
- Adjust the Vertical Amplitude, Shift, S-
Correction and Slope to compensate for vertical
distortion.
3-3-5 - Horizontal picture centering
- Adjust H Shift to have the picture in the center of the screen.
3-3-6 - East / West correction
- Adjust the H Parall, H Bow, H Width, EW Parabo, Up Corner, Dw Corner, EW trapez to
compensate for geometrical distortion.
H. Parall
Black screen.
5V.
Vcut-off
140V
140V
-10-
EW.Parabola

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Pf-68t32