Sharp Aquos LC 37HV6U, Service Manual

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LC-37HV6U
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IC7001 (µPD64084)
This IC provides 3D processing of NTSC signals and thus high resolution Y/C separation of the main image
signals received from IC1301.
It incorporates a 4M-bit frame delay memory board and features one-chip 3D Y/C separation.
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Two operation modes available; dynamic image 3D Y/C separation mode and 2D Y/C sepa YCNR
mode
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Y coring circuit, vertical contour compensation circuit, peaking filter and noise detection circuit incorporated
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Power down mode available to minimize power consumption when not in operation
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IC402 (TC90A69)
Adaptive infield 3-line digital comb filter supporting both NTSC and PAL.
This IC is a high-precision Y/C 1 chip incorporating a CNR circuit and performs YC separation of the sub video
signals received from IC1301.
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IC801/802 (TB1274AF)
IC for synchronous processing, luminance processing and chroma demodulation for color TV.
It receives main and sub luminance and chrominance signals from IC7001 (main) and IC402 (sub) and delivers
component signals.
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IC803 (CXA2101Q)
IC having a component input integrated with a high-performance image compensation circuit. Equipped with
circuits for processing baseband signals and RGB signals and a 4-channel video switch incorporating an H/V
synchronization signal processing circuit.
Input selection is done by INPUT-SEL (IIC BUS). YCbCr, Y, PbPr, GBR and their H/V synchronization signals
are inputted to input pins of each channel.
Multi-scan facility permits acceptance of a horizontal scan line frequency range of 15 kHz to 60 kHz.
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FL810 (SM5301AS)
The SM5301AS is a 5th order Butterworth low-pass filter that has the sync clamp function. In response to the
input video signal, this filter can preset the cut-off frequency according to the control voltage at pin 21.
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IC1901 (IXA392WJ)
FPGA for synchronous processing.
This IC selects synchronization signals and creates horizontal blanking signals.
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IC604 (TA1318AF)
IC for synchronous processing of TV component signals and measurement of frequency.
This IC incorporates an input signal frequency measurement feature and synchronous regeneration features.
It supports synchronous horizontal regeneration (15.75 kHz, 31.5 kHz, 33.75 kHz and 45 kHz) and synchronous
vertical regeneration (480I, 480P, 576I, 720P, 1080I, PAL 100 Hz, and NTSC 120 Hz).