DOWNLOAD Sharp LC-42LE40E Service Manual ↓ Size: 12.63 MB | Pages: 127 in PDF or view online for FREE

Model
LC-42LE40E
Pages
127
Size
12.63 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
lc-42le40e.pdf
Date

Sharp LC-42LE40E Service Manual ▷ View online

LC-32LE40E-LC-42LE40E 
53 
Audio ADC 
 MT5366 support 7-pair L/R input, MT5365 support 1-pair L/R input 
Audio digital input 
 MT5366 support 5 bit (10 channel) I2S audio input (muxed with GPIO), MT5365 support 2 bit (4 channel) I2S 
audio input (muxed with GPIO). 
HDMI Receiver 
 One channel HDMI1.4 
v. Maximum data rate can be up to 3.3 GHz 
vi. Support 3D video format 
vii. Audio Return channel 
 EIA/CEA-861B 
 CEC 
Video bypass 
 TV bypass 
 CVBS Monitor (any AV input) 
TV audio demodulator 
 Supports BTSC / EIA-J / A2 / NICAM / PAL FM / SECAM world-wide formats 
 Standard automatic detection 
 Stereo demodulation, SAP demodulation 
 Mode selection (Main/SAP/Stereo) 
Audio DAC 
 MT5366 support 4-pair audio DACs, MT5365 support 2-pair audio DACs 
DRAM Controller 
 16/32-bit DDR2/DDR3 interface, (MT5365 only support 16-bit DRAM) 
 MT5365 Support DDR2 1026 MHz, DDR3 1188MHz. MT5366 Support DDR2 1026MHz, DDR3 1242MHz. 
 Supports 512Mb or 1 Gb DDR2 DRAM device and 1Gb or 2Gb DDR3 device. MT5365 has 16-bit data bus offers up to 256MB space (one x16 DRAM 
device), and MT5366 has 32-bit data bus offers up to 512MB space (two x16 DRAM device). 
 Supports DDR2-800/DDR2-1066/DDR3-1333/DDR3-1600 device 
Audio DSP 
 Supports Dolby Digital AC-3 decoding (ATSC) 
 MPEG-1 layer I/II decoding 
 Support WMA / HE-AAC 
 Dolby Prologic II 
 Audio output: 5.1ch + 2ch (down mix) + 2ch(bypass) 
 Pink noise and white noise generator 
 Equalizer 
 Bass management 
 3D surround processing with virtual surround 
 Audio and video lip synchronization 
 Supports bass/treble 
 Automatic volume control 
 MT5366 supports 5-bit (10-channel) main audio I2S output interface, MT5365 support 2-bit (4-channel) main audio I2S output interface: each of these 
channels is up to 24-bit resolution. 
S/PDIF interface 
 Support SPDIF in bypass 
 One SPDIF out 
Analog TV IF Demodulator 
 Supports world-wide analog TV standard 
 Accept Low IF frequency 
 Full digital AGC control and carrier recovery 
 Embedded SAW filter and IF Amplifier. Cost effective TV front-end structure and no more costs on 
LC-32LE40E-LC-42LE40E 
54 
viii. External analog SAW filters (Video/Audio) 
ix. External analog IF demodulator 
x. Extra peripheral circuit on CVBS signal data path 
xi. External SAW filter and IF VGA on tuner 
Peripherals 
 MT5366 support three built-in UARTs with Tx and Rx FIFO, MT5365 support two UART (one is muxed with GPIO). 
 MT5366 support MII/RMII interface (built-in Ethernet MAC), MT5365 support RMII only. 
 Seven basic serial interfaces; one is for the tuner, one is the master for general purpose, and one is the slave for VGA DDC, the other four extra slave 
serial interfaces used for HDMI EDID data (three are muxed with GPIO). 
 MT5366 support three PWMs, MT5365 support two PWMs (one is muxed with GPIO). 
 IR receiver 
 Real-time clock and watchdog controller 
 Built-in 2-link USB2.0/1.1, USB port0 supports external hub, 
 Built-in uP for standby mode 
 Support SDIO interface pin muxed with smart card 
 Supports two serial flash or one serial and one NAND flash 
 MT5366 supports six-input low-speed ADC, MT5365 support five-input low-speed ADC. 
 Supports boundary scan (JTAG) 
IC Outline 
 The MT5366 is 21x21mm PBGA Package, MT5365 is 256-pin LQFP package with EPAD 
 3.3V/1.12V/1.2V and 1.8V for DDR2 or 1.5V for DDR3 
 
 
2.2 U701/U702(TPS54319RTER) 
General Description 
The TPS54319 device is a full featured 6 V, 3 A, synchronous step down current mode converter with two integrated MOSFETs. 
The TPS54319 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing 
inductor size by enabling up to 2 MHz switching frequency, and minimizing the IC footprint with a small 3mm x 3mm thermally enhanced QFN package. 
The TPS54319 provides accurate regulation for a variety of loads with an accurate ±3.0% Voltage Reference (VREF) over temperature. 
Efficiency is maximized through the integrated 45mΩ MOSFETs and 360mA typical supply current. Using the enable pin, shutdown supply current is 
reduced to 2 μA by entering a shutdown mode. 
Under voltage lockout is internally set at 2.6 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output 
voltage startup ramp is controlled by the slow start pin. An open drain power good signal indicates the output is within 93% to 107% of its nominal voltage. 
Frequency fold back and thermal shutdown protects the device during an over-current condition. 
The TPS54319 is supported in the SwitcherPro™ Software Tool at www.ti.com/switcherpro. 
For more SWIFTTMdocumentation, see the TI website at www.ti.com/swift. 
 
Features 
· Two 45-mΩ (typical) MOSFETs for High Efficiency at 3-A Loads 
· 300kHz to 2MHz Switching Frequency 
· 0.8 V ± 3.0% Voltage Reference Over Temperature (0°C to 85°C) 
· Synchronizes to External Clock 
· Adjustable Slow Start/Sequencing 
· UV and OV Power Good Output 
· –40°C to 150°C Operating Junction Temperature Range 
· Thermally Enhanced 3mm × 3mm 16-pin QFN 
 
Applications 
· Low-Voltage, High-Density Power Systems 
· Point-of-Load Regulation for Consumer Applications such as Set Top Boxes, LCD Displays, CPE Equipment. 
LC-32LE40E-LC-42LE40E 
55 
2.3 U1011(MT5135AE/A)
 
General Description 
MT5135AE is an integrated channel demodulator for European TV solutions. It provides high performance DVB-T and DVB-C demodulation function with 
low overall costs. The integrated SAW filter technology eliminates the need for on-board SAW filters and VGAs, resulting in a lower BOM cost and a more 
compact PCB design. The integrated CI+ controller and interface also reduce the complexity of TS routing. 
The integrated DVB-T and DVB-C demodulators fully comply with the related ETSI and ITU standards. They meet performance requirements of NorDig 
Unified, C-Book, and D-Book. A high-performance analog front-end, consisting of a PGA and a 10-bit ADC preceding the digital data path, can accept the 
IF or low-IF signal inputs directly from RF can tuners or silicon tuners. The digital data path realizes a set of refined algorithms to achieve quality 
demodulation under varying channel conditions and impairments. An on-chip micro-processor controls the robust acquisition flow for both DVB-T and 
DVB-C demodulators, and thus enables MT5135AE to successfully lock on the desired TV channel with a high carrier frequency offset (CFO) or timing 
frequency offset (TFO). In addition, proprietary mechanisms are incorporated to speed up the channel scan. They include the automatic mode 
detection for DVB-T, and the automatic symbol rate and modulation type detection for DVB-C. 
With MT5135AE, the cost and system complexity of a TV can be significantly reduced. Taking advantage of the integrated SAW filter technology, the SAW 
filter together with the accompanying VGA, conventionally found on board or inside a NIM, can be spared. This solution calls for a simple RF tuner directly 
feeding the IF inputs of MT5135AE, leaving a lean PCB design with a smaller component count and a lower BOM cost as well. Furthermore, MT5135AE 
provides an integrated CI+ controller with the complete complementing interfaces among the CAM, the main decoder chip, and an additional demodulator 
chip. When not in use, these interfaces can be set to hi-impedance mode to support multiple demodulators or multiple CAMs operation. With the highly 
flexible CI+ controller and interfaces, MT5135AE effectively addresses the TS routing complexity for the application scenarios such as simultaneous PVR 
recording and playback, or time-shift playback. The need for on-board TS multiplexers is eliminated and the PCB layout can be kept as compact as 
possible. 
 
Features 
 Integrated DVB-T and DVB-C demodulators 
 Integrated CI/CI+ controller and interface 
 On-chip integrated SAW filter function for lower BOM cost 
 On-chip high-performance PGA and 10-bit ADC accepting IF or low-IF inputs 
 RSSI measurement 
 Independent RF and IF AGC controls 
 On-chip micro-processor for acquisition control 
 Good CAM compatibility 
 One parallel or serial TS interface accepting outputs from other demodulator chips 
 TS interfaces supporting instant playback and PVR recording and playback 
 SPI for host communication 
 On-chip SIF master for tuner control 
 Low power consumption: less than 200 mW 
 LQFP-128 14 x 14 mm2 package 
 
DVB-T Demodulator Features 
 ETSI 300 744 & NorDig Unified compliant 
 Excellent performance for SFN & Indoor reception 
 Supporting 2k and 8k modes 
 Supporting QPSK,16-, and 64-QAM constellations 
 Supporting 1/4, 1/8, 1/16, and 1/32 guard Intervals 
 Supporting hierarchical & non-hierarchical modes 
 Accepting 6,7,8 MHz channel bandwidth 
 Automatic mode detection 
 Full-digital timing/frequency with wide acquisition range 
 Support triple offset 
 Excellent adjacent channel interference (ACI) rejection capability 
 Excellent co-channel interference (CCI) rejection capability 
 Fast channel lock time  
 
LC-32LE40E-LC-42LE40E 
56 
DVB-C Demodulator Features 
 ETSI 300 429, ITU J.83 Annex A, NorDig Unified, and C-Book compliant 
 Wide symbol rate support: 1 to 7 Msps 
 Supporting 16-, 32-, 64-, 128-, and 256-QAM 
 Full-digital timing/frequency with wide acquisition range 
 Automatic symbol rate and modulation type detection for fast channel scan 
 Excellent narrow-band interference rejection capability 
 
Applications 
 Set-top boxes 
 Integrated digital televisions (iDTV) 
 Network Interface Modules (NIMs)
 
 
 
2.4 U602(TAS5717LPHPR) 
General Description 
The TAS5717/TAS5719 is a 10-W/15-W, efficient, digital audio-power amplifier for driving stereo bridge-tied speakers. One serial data input allows 
processing of up to two discrete audio channels and seamless integration to most digital audio processors and MPEG decoders. The device accepts a 
wide range of input data and data rates. A fully programmable data path routes these channels to the internal speaker drivers. 
The TAS5717/9 is a slave-only device receiving all clocks from external sources. The TAS5717/TAS5719 operates with a PWM carrier between a 384-kHz 
switching rate and a 352-KHz switching rate, depending on the input sample rate. Oversampling combined with a fourth-order noise shaper provides a flat 
noise floor and excellent dynamic range from 20 Hz to 20 kHz. 
 
Features 
• Audio Input/Output  
– TAS5717 Supports 2×10 W and TAS5719Supports 2×15 W Output 
– Wide PVDD Range, From 4.5 V to 26 V 
– Efficient Class-D Operation Eliminates Need for Heatsinks  
– Requires Only 3.3 V and PVDD  
– One Serial Audio Input (Two AudioChannels)  
– I2C Address Selection via PIN (Chip Select) 
– Supports 8-kHz to 48-kHz Sample Rate (LJ/RJ/I2S)  
– External Headphone-Amplifier Shutdown Signal  
– Integrated CAP-Free Headphone Amplifier  
– Stereo Headphone (Stereo 2-V RMS Line Driver) Outputs DESCRIPTION 
• Audio/PWM Processing  
– Independent Channel Volume Controls With 24-dB to Mute  
– Programmable Two-Band Dynamic Range Control  
– 14 Programmable Biquads for Speaker EQ  
– Programmable Coefficients for DRC Filters  
– DC Blocking Filters 
– 0.125-dB Fine Volume Support 
• General Features  
– Serial Control Interface Operational Without MCLK 
– Factory-Trimmed Internal Oscillator for Automatic Rate Detection  
– Surface Mount, 48-Pin, 7-mm × 7-mm HTQFP Package 
– AD, BD, and Ternary PWM-Mode Support 
– Thermal and Short-Circuit Protection 
• Benefits 
– EQ: Speaker Equalization Improves Audio Performance 
– DRC: Dynamic Range Compression. Can Be Used As Power Limiter. Enables Speaker Protection, Easy Listening, Night-Mode Listening 
– DirectPath Technology: Eliminates Bulky DC Blocking Capacitors 
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