Daewoo DTK-28 Series, Руководство по обслуживанию, Страница: 28 / 71

CP-850/F Service Manual
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4.3.2 DESCRIPTION
Video Processing
- linear horizontal scaling (0.25 ... 4), as well as nonlinear horizontal scaling “panorama vision”
- dynamic black level expander
- luma sharpness enhancement by dynamic peaking and luma transient improvement (LTI)
- color transient improvement (CTI)
- programmable RGB matrix
- black stretch, blue stretch, gamma correction via programmable Non-linear Colorspace Enhancer (NCE) on RGB
- two analog double scan inputs with fast blank (one RGB and one RGB/YC r C b /YP r P b selectable)
- average and peak beam current limiter
- automatic picture tube adjustment (cutoff, drive)
- histogram calculation
Deflection Processing
- scan velocity modulation output
- digital EHT compensation for vertical / east-west
- soft start/stop of horizontal-drive
- vertical angle and bow correction
- differential vertical outputs
- vertical zoom via deflection adjustment
- horizontal and vertical protection circuit
- horizontal frequency for VGA/SVGA/1080I
- black switch off procedure
- supports horizontal and vertical dynamic focus
Miscellaneous
- selectable ITU-R 601 4:1:1 / 4:2:2 YC r C b input at 27/32 MHz or double scan ITU-R 656 input at 54 MHz line-locked
clock
- crystal oscillator for horizontal safety
- picture frame generator
- hardware for simple 50/60 Hz to 100/120 Hz conversion (display frequency doubling)
- PQFP80 package, 5 V analog and 3.3 V digital supply