Akai LTA-26C904, Service Manual

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2. Function introduction of ICs or functional module of Akai LCD TV with LS01core
1.Hign frequency head(JS-6H2/121)
Pin No. Definition of pin Function description
1 NC No connection
2 BT No connection
3 VCC +5V power
4 SCL IIC bus (clock)
5 SDA IIC bus (data)
6 AS Ground
7 AFS Ground
8 NC No connection
9 NC No connection
10 NC No connection
11 SIF/Out AGC control (intermediate audio output)
12 Video/Out CVBS signal output
13 VCC
（
+5V
）
+5V power
14 Audio/Out Audio signal output
2. Image processing IC SVP-CX32LF
SVP-CX32 is a high integrated video decoding, image processing chip and is widely used
in such mainstream flat screen TVs as HDTV, PC, LCD TV, and Plasma TV etc. it inherited the
technological advantage of its earlier stage scaler chip. It adopts the 6th generation Trident
multi-zooming mode and non-interlaced scanning technology when processing image.
Multi-color mode (PAL/SECAM/NTSC) decoding is built-in; 10bit A/D module, 8bit LVDS
transmission interface, digital comb filter module, and 3D digital comb video decoding are
available. Such functions as video enhancement, OSD and VBI/Closed Caption, and teletext
（ LEVEL 2.5 ） are available. The function of the chip makes it adapt to global market. The
decoder could operate under PAL/SECAM/NTSC mode; there are such input interfaces as 5
channels CVBS, 2 channels chroma signal, 1 channel PC RGB, 2 channels YpbPr, and 8-bit
Digital ITU-R656/601
（
HDMI interface
）。
Its main features are:
● 6th generation image dynamic smooth filtering
● 10-bits A/D conversion
● PC automatic phase and mode recognition, white balance correction
● 8bits LVDS transmission interface
● 6
th
generation 4 zooming watch mode
● Advanced chroma processing and dynamic contrast function
● Chroma extension of green and blue color, skin strengthen
● 6
th
generation 3D digital comb video filter
● Support 60Hz
～
100Hz interlace scanning and 50Hz
～
75Hz non-interlace scanning
● PC and video frame format conversion
● 14D dynamic video enhancement
● Pulse width modulation
● Build-in A/D conversion function
● Teletext function
● Provide 16/32bits SDR memory interface