LG 42LV4400 LC420EUG-RDV2-7R1 Service Manual ▷ View online
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File No. SG-0000034
TCN1
C
ONNECTION
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TCN2
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Chapter 7 Theory of Circuit Operation
The route of D-SUB 15pin input
An RGB (analog) signal is inputted the D-SUB 15pin to the MT5376 which transfers it to a digital
signal by the A/D converter. Then MT5376 generates a Low Voltage Differential Signal (LVDS) for
display device. The Extended Display Identification (EDID) code is recorded in EEPROM.
signal by the A/D converter. Then MT5376 generates a Low Voltage Differential Signal (LVDS) for
display device. The Extended Display Identification (EDID) code is recorded in EEPROM.
The route of HDMI CON input
A HDMI (Digital) signal is inputted the HDMI 1,2 & 3 CON to the PI3HDMI301 switch. The
passing signal is processed with the MT5376. Then MT5376 generates a LVDS for display device.
passing signal is processed with the MT5376. Then MT5376 generates a LVDS for display device.
The route of HDTV & Component input
HDTV & Component signal is inputted to the MT5376.After processing, MT5376 generates a LVDS
for display device. The audio signal is inputted MT5376. After processing, MT5376 transmits the
signal to audio output. an audio amplifier and line out.
for display device. The audio signal is inputted MT5376. After processing, MT5376 transmits the
signal to audio output. an audio amplifier and line out.
The route of CVBS input
The CVBS signal is inputted to the MT5376.After processing, MT5376 generates a LVDS for
display device. The audio signal is also inputted MT5376. After processing, MT5376 transmits the
signal to audio amplifier. Then, the amplified signal is the output audio signal.
display device. The audio signal is also inputted MT5376. After processing, MT5376 transmits the
signal to audio amplifier. Then, the amplified signal is the output audio signal.
The route of TV input
TV signal is demodulated by the tuner then the demodulating signal is divided into two parts, video
and audio signal. The video signal is processed by MT5376 then MT5376 generates a LVDS for
display device. The audio signal is transmitted in the route named SIF. The SIF signal is
demodulated and decoded by MT5376. The audio signal is inputted MT5376. MT5376 transmits
the signal to audio amplifier. Then, the amplified signal is the output audio signal.
and audio signal. The video signal is processed by MT5376 then MT5376 generates a LVDS for
display device. The audio signal is transmitted in the route named SIF. The SIF signal is
demodulated and decoded by MT5376. The audio signal is inputted MT5376. MT5376 transmits
the signal to audio amplifier. Then, the amplified signal is the output audio signal.
The route of DTV input
DTV signal demodulated by the tuner then the demodulating signal is divided into two parts, video
and audio signal. The video signal is demodulated by MT5376. The demodulated signal is
transmitted to and processed by MT5376. Also, MT5376 generates a LVDS for display device.
The audio signal is transmitted in the route named FAT-IN. The FAT-IN signal is demodulated and
decoded by MT5376. After processing, MT5376 transmits the signal to audio amplifier. Then, the
amplified signal is the output audio signal.
and audio signal. The video signal is demodulated by MT5376. The demodulated signal is
transmitted to and processed by MT5376. Also, MT5376 generates a LVDS for display device.
The audio signal is transmitted in the route named FAT-IN. The FAT-IN signal is demodulated and
decoded by MT5376. After processing, MT5376 transmits the signal to audio amplifier. Then, the
amplified signal is the output audio signal.
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The operation of keypad
There are 7 Buttons to control and to select the function of E370VP/E420VP. Also, there is a LED
back light under the LED lens to indicate the status of operation (OFF => STANDBY, White =>
ON).
back light under the LED lens to indicate the status of operation (OFF => STANDBY, White =>
ON).
MT5376
Ⅰ. GENERAL DESCRIPTION
The MediaTek MT5376
family is a backend decoder and a TV controller and offers high
integration for advanced applications. It combines a transport de-multiplexer, a high definition
video decoder, an AC3 audio decoder, a dual-link LVDS transmitter, and an NTSC/PAL/SECAM
TV decoder with a 3D comb filter (NTSC/PAL). The MT5376 enables consumer electronics
manufactures to build high quality, low cost and feature-rich DTV.
video decoder, an AC3 audio decoder, a dual-link LVDS transmitter, and an NTSC/PAL/SECAM
TV decoder with a 3D comb filter (NTSC/PAL). The MT5376 enables consumer electronics
manufactures to build high quality, low cost and feature-rich DTV.
World-Leading Audio/Video Technology :
The MT5376 supports MPEG2 Full-HD video
decoder standards, and JPEG. The MT5376 also supports MediaTek MDDiTM de-interlace
solution can reach very smooth picture quality for motions. A 3D comb filter added to the TV
decoder recovers great details for still pictures. The special color processing technology
provides natural, deep colors and true studio quality video. Also, the MT5376 family has built-in
high resolution and high-quality audio codec.
solution can reach very smooth picture quality for motions. A 3D comb filter added to the TV
decoder recovers great details for still pictures. The special color processing technology
provides natural, deep colors and true studio quality video. Also, the MT5376 family has built-in
high resolution and high-quality audio codec.
Rich Features for High Value Products
:
The MT5376 family enables true single-chip
experience. It integrates high-quality HDMI1.3, high speed VGA ADC, dual-channel LVDS,
USB2.0 receiver and multi-media decoder..
USB2.0 receiver and multi-media decoder..
Key Features:
1. ATSC demodulator
2. Worldwide multi-standard analog TV demodulator
3. A transport demultiplexer
4. A MPEG2 video decoder
5. An AC3/MPEG2 audio decoder
6. HDMI1.3 receiver
7. Audio codec
2. Worldwide multi-standard analog TV demodulator
3. A transport demultiplexer
4. A MPEG2 video decoder
5. An AC3/MPEG2 audio decoder
6. HDMI1.3 receiver
7. Audio codec
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