Major Ic Informations - Sharp TU-45GD1E Service Manual

(AVC section)
• IC3801 (CXA2069Q)
7-input/3-output selector. All the audio signals and video signals except those related to PCs or components from each
input terminal and tuner are sent to this IC and selected.
The video output signals from this IC are sent to the video decoder circuits with a built-in YC separation [IC402/502
(main) and IC601 (sub)] via low-pass filters of IC401 (SM5302AS) and IC503/600 (SM5313AS).
The external input audio signals are supplied to the 1-bit amplifier via IC2501 (SOUND PROCESSOR).
• IC3805 (MM1519XQ)
4-input/3-output video selector for component input.
Inputs: INPUT 3 for component, INPUT1/INPUT3 for RGB, and TELETEXT for RGB signal
Component outputs: MAIN, SUB, and PASS
• IC1601 (SDA5550M)
The SDA5550M is a single chip teletext decoder for decoding World System teletext data as well as Video
Programming System (VPS), Program Delivery Control (PDC), and Wide Screen Signaling (WSS) data used for PAL
plus transmissions (line23).
• IC1602 (iXA134WJ)
4 Mb dual operation flash memory.
It integrates the TELTEXT processor program, and a processor command produces an output.
• IC1603 (62S8308X)
256 K x 8 bit CMOS Static RAM.
It is used to save TELTEXT signals transmitted along with broadcast data. A TELTEXT processor command produces
an output when necessary.
• IC401 (SM5302AS)
3 ch video buffer with built-in fifth order Butterworth low-pass filter for PAL main signal processing. Cut-off frequency
for the low-pass filter is adjustable.
This filter allows video signal input/output between 480i and 1080i.
• IC503 (SM5313AS)
6 ch video buffer with low-pass filter for SECAM/RGB main signal processing.
It can drive a total 6 channels of S-terminal signal, composite signal, and component signal at the same time.
Composite signals are mixed with inputted Y/C signals and sent out.
• IC600 (SM5313AS)
6 ch video buffer with low-pass filter for sub signal processing.
It can drive a total 6 channels of S-terminal signal, composite signal, and component signal at the same time.
Composite signals are mixed with inputted Y/C signals and sent out.
• IC402 (CXD3802B)
Digital chroma decoder that is used for main signal processing. It performs luminance signal, chrominance, and sync
signal processing of the adaptive 3D-comb filter PLA method CVBS/YC signal, analog component signal, and digital
component signal.
10 bit Y/CbCr (ITU_R601) output.
• IC502 (CXD2096Q)
Digital chroma decoder that is used for main signal processing. It performs luminance signal, chroma signal, and sync
signal processing of the adaptive 2D-comb filter SECAM/RGB signal.
10 bit Y/CbCr (ITU_R601) output.
• IC601 (VPC3230D)
Digital video decoder that is used for sub signal processing. It performs luminance signal, chroma signal, and sync

Major IC Informations

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TU-45GD1E
LC-45GD1E