DOWNLOAD Sharp LC-39LE751EK (serv.man3) Service Manual ↓ Size: 21.94 MB | Pages: 127 in PDF or view online for FREE

Model
LC-39LE751EK (serv.man3)
Pages
127
Size
21.94 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
lc-39le751ek-sm3.pdf
Date

Sharp LC-39LE751EK (serv.man3) Service Manual ▷ View online

49
LC-39/50LE750
LC-39/50LE751
LC-39/50LE752
 
Sub channel mix into left and right channels. 
 
Selectable high- or low-bandwidth noise-shaping topologies. 
 
Selectable clock input ratio. 
 
96-kHz internal processing sample rate. 
 
Thermal overload and short-circuit protection technology 
 
Video apps: 576 x fs input mode supported. 
 
IC 2702: Headphone Amplifier. 
Part number: TS488IQT (ST MICRO) 
Sharp code : RH-IXD542WJZZY. 
http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/CD00083715.pdf
 
 
Ω
Ω
Ω
 
 
Features:  
 
Pop and click noise protection circuitry. 
 
Operating range from VCC = 2.2 V to 5.5 V. 
 
Standby mode active low (TS488) or high (TS489). 
 
Output power: 
– 120 mW at 5 V, into 16 Ω with 0.1% THD+N max (1 kHz). 
– 55 mW at 3.3 V, into 16 Ω  with 0.1% THD+N max (1 kHz). 
 
Low current consumption: 2.7 mA max at 5 V. 
 
Ultra-low standby current consumption: 10 nA typical. 
 
High signal-to-noise ratio. 
 
High crosstalk immunity: 102 dB (F = 1 kHz). 
 
PSRR: 70 dB typ. (F = 1 kHz), inputs grounded at 5 V. 
 
Unity-gain stable. 
 
Short-circuit protection circuitry. 
 
IC9552: USB 2.0 Hi-Speed Hub Controller 
Part number: USB2514B-AEZG (SMSC) 
Sharp code: VHI2514BAEZ-1Q 
http://www.smsc.com/Downloads/SMSC/Downloads_Public/Data_Sheets/251xb.pdf
 
 
The SMSC USB251x hub is a family of low-power, OEM 
configurable, MTT (multi transaction translator) 1 hub controller 
IC products for embedded USB solutions. The “x” in the part 
number indicates the number of downstream ports available. The 
SMSC hub supports low-speed, full-speed, and hi-speed (if 
operating as a hi-speed hub) downstream devices on all of the 
enabled downstream ports. 
 
Features 
 
Full power management with individual or ganged power 
control of each downstream port. 
 
Fully integrated USB termination and pull-up/pull-down 
resistors. 
 
Supports a single external 3.3 V supply source; internal 
regulators provide 1.2 V or 1.8 V internal core voltage. 
 
On-chip driver for 24 MHz crystal resonator or external 24/48 
MHz clock input. 
 
Customizable vendor ID, product ID, and device ID. 
 
ESD protection up to 4 kilovolts on all USB pins. 
 
Supports self- or bus-powered operation. 
 
USB251xB2 and USB251xBi products support the USB Battery Charging specification. 
 
Package: 36-pin QFN (6x6 mm). 
    MAJOR ICs  INFORMATION ( continued )
50
LC-39/50LE750
LC-39/50LE751
LC-39/50LE752
IC 3501, IC3502 & IC 3503: 2Gb 16Bits DDR3-1600 SDRAM 
Part number: MT41J128M16JT-125:K (MICRON) 
Sharp code: RH-IXD538WJZZQ 
http://www.micron.com/~/media/Documents/Products/Data%20Sheet/DRAM/2Gb_DDR3_SDRAM.pdf
 
 
DDR3 SDRAM uses double data rate architecture to achieve high-speed operation. The double data rate architecture is an 8n-
prefetch architecture with an interface designed to transfer two data words per clock cycle at the I/O pins. A single read or write 
operation for the DDR3 SDRAM effectively consists of a single 8n-bit-wide, four-clock cycle data transfer at the internal 
DRAM core and eight corresponding n-bit-wide, one half-clock-cycle data transfers at the I/O pins. The differential data strobe 
(DQS, DQS#) is transmitted externally, along with data, for use in data capture at the DDR3 SDRAM input receiver. DQS is 
center-aligned with data for WRITEs. The read data is transmitted by the DDR3 SDRAM and edge-aligned to the data strobes. 
The DDR3 SDRAM operates from a differential clock (CK and CK#). The crossing of CK going HIGH and CK# going LOW is 
referred to as the positive edge of CK. Control, command, and address signals are registered at every positive edge of CK. Input 
data is registered on the first rising edge of DQS after the WRITE preamble, and output data is referenced on the first rising edge 
of DQS after the READ preamble. 
Read and write accesses to the DDR3 SDRAM are burst-oriented. Accesses start at a selected location and continue for a 
programmed number of locations in a programmed sequence. Accesses begin with the registration of an ACTIVATE command, 
which is then followed by a READ or WRITE command. The address bits registered coincident with the ACTIVATE command 
are used to select the bank and row to be accessed. The address bits registered coincident with the READ or WRITE commands 
are used to select the bank and the starting column location for the burst access.  
The device uses a READ and WRITE BL8 and BC4. An auto precharge function may be enabled to provide a self-timed row 
precharge that is initiated at the end of the burst access. 
As with standard DDR SDRAM, the pipelined, multibank architecture of DDR3 SDRAM allows for concurrent operation, 
thereby providing high bandwidth by hiding row precharge and activation time. 
A self refresh mode is provided, along with a power-saving, power-down mode. 
 
Features:  
 
VDD = VDDQ = 1.5V ±0.075V. 1.5V center-terminated push/pull I/O. 
 
Differential bidirectional data strobe with 8n-bit prefetch architecture. 
 
Differential clock inputs (CK, CK#). 
 
8 internal banks. 
 
Nominal and dynamic on-die termination (ODT) for data, strobe, and mask signals. 
 
Programmable CAS READ latency (CL). Posted CAS additive latency (AL). 
 
Programmable CAS WRITE latency (CWL) based on tCK. 
 
Fixed burst length (BL) of 8 and burst chop (BC) of 4 (via the mode register set [MRS]). 
 
Self refresh temperature (SRT). 
 
Multipurpose register with Output driver calibration. 
    MAJOR ICs  INFORMATION ( continued )
51
LC-39/50LE750
LC-39/50LE751
LC-39/50LE752
IC9551: Adjustable Current Limited Load Switch with Fault Flag (USB1). 
Part number: AAT4614IGU-2-T1 (SKYWORKS INC.) 
Sharp code: RH-IXD309WJZZY 
http://www.skyworksinc.com/uploads/documents/201939A.pdf
 
 
The AAT4614 Smart Switch is a current limited P-channel MOSFET power switch designed for high side load switching 
applications. This switch operates with inputs ranging from 2.4V to 5.5V, making it ideal for both 3V and 5V systems. An 
integrated current-limiting circuit protects the input supply against large currents which may cause the supply to fall out of 
regulation. Reverse current blocking is provided to protect the load switch from reverse current potentials while the device is 
shutdown.  
The AAT4614 is also protected from thermal overload which is limited by power dissipation and junction temperatures. Current 
limit threshold is programmed with a resistor from SET to ground and may be adjusted for levels up to 1.4A. The ultra-fast 
current limit response to a sudden short circuit is a mere 1
μs which reduces the requirements of local supply bypassing. An open 
drain FAULT flag signals an over-current or over-temperature condition after a 4ms blanking time to prevent false reporting. 
Quiescent current is a low 10
μA and the supply current decreases to less than 1μA in shutdown mode.  
The AAT4614 is offered in the 8-pin SC70JW, SOT23-6 and SOT23-5 packages, and is specified for operation over the -40°C to 
+85°C ambient temperature range.  
Features. 
 
Input Voltage Range: 2.4V to 5.5V.  
 
Programmable Over-Current Threshold. 
 
Fast Transient Response: 
 
1μs Response to Short Circuit. 
 
10μA Typical while Enabled. 
 
160mΩ Typical R
DS(ON).
 
 
Only 2.4V Needed for ON/OFF Control. 
 
Under-Voltage Lockout. 
 
Reverse Blocking During Disable. 
 
4ms Fault Blanking. 
 
Fault Flag Open Drain Output. 
 
Active Hi/Lo Enable Options. 
 
Over-Temperature Protection. 
 
IC9553: Low Dropout LDO (USB2) 
Part number: S-1170B50UC-OUJTFG (SEIKO) 
Sharp code: VHIS170B50U-1Y 
http://datasheet.sii-ic.com/en/voltage_regulator/S1170_E.pdf
 
 
The S-1170 Series is a positive voltage regulator with a low dropout voltage (LDO), high output voltage accuracy, and low 
current consumption developed based on CMOS technology. 
A built-in low on-resistance transistor provides a low dropout voltage and large output current, a built-in overcurrent protector 
prevents the load current from exceeding the current capacitance of the output transistor, and a built-in thermal shutdown circuit 
prevents damage caused by the heat. An ON/OFF circuit ensures a long battery life. Compared with the voltage regulators using 
the conventional CMOS process, a larger variety of capacitors are available, including small ceramic capacitors. Small SOT-89-
5 and 6-Pin HSON(A) packages realize high-density mounting. 
 
Features:  
 
Output voltage: 1.5 V to 5.5 V, selectable in 0.1 V steps. 
 
High-accuracy output voltage: ±1.0%. 
 
Low dropout voltage (LDO): 120 mV typ. (3.0 V output 
product, Iout =300 mA). 
 
Low current consumption: During operation 80 μA typ. 
160 μA max., During shutdown 0.1 μA typ. 1.0 μA max. 
 
High peak current capability: 800 mA output is possible 
(@ Vin >Vout(S) +1.0 V) *1 
 
Built-in ON/OFF circuit. 
 
High ripple rejection: 70 dB typ. (@ 1.0 kHz) 
 
Built-in overcurrent protector: Overcurrent of output 
transistor can be restricted. 
 
Built-in thermal shutdown circuit. 
    MAJOR ICs  INFORMATION ( continued )
52
LC-39/50LE750
LC-39/50LE751
LC-39/50LE752
IC 3301: SOC Freeman Premier 2 
Part number: FLI7560-AAB (ST MICRO) 
Sharp code: RH-IXD514WJZZQ 
http://www.st.com/st-web-ui/static/active/en/resource/technical/document/data_brief/DM00063486.pdf
 
The FLI7560 is a revolutionary new iDTV SoC that integrates two highly successful, market proven subsystems: STi710x 
digital/front-end processing and multi-format audio/video decoding from the STB market, and Faroudja video/back-end 
processing from the TV market. The FLI7560 is a high-performance, state-of-the-art SoC that can power 
DTT/cable/satellite/IPTV iDTV designs for worldwide deployment. From the software compatibility extending from the mature 
STi710x STAPI layer to the extensive video processing, tuning, and tools from Faroudja Labs, FLI7560 is an ideal solution for 
addressing the next generation of iDTV design requirements. 
The FLI7560 is the latest in a family of scalable performance and software-compatible H.264 SoCs that address mainstream and 
performance segments of the iDTV market. Notably, it is a single-chip, 120 Hz TV solution incorporating Motion-Corrected 
Temporal Interpolation (MCTi) Faroudja technology. It utilizes industry-leading vector estimation to interpolate in between 
frames to correct film motion judder and panel motion blurring. Combining the artistic elements of film with the linear motion of 
video, FLI7560 provides audiences with a uniquely enjoyable viewing experience. 
FLI7560 implements the latest generation of Faroudja Video Optimized technologies, which allow a high degree of 
customization for TV OEMs. Key technology improvements in this area include 14-bit color and contrast processing, upgraded 
sharpness, upgraded temporal noise reduction, and new MPEG noise reduction. Furthermore, FLI7560 supports all connectivity 
requirements to 3D sources and all mandatory 3D formats defined in the HDMI 1.4b specification. 
Along with its high performance CPU, the FLI7560 is equipped with 256 Kbyte of level 2 cache to deliver the smoothest multi-
instance Connected TV intuitive user experience. In addition, with its A/V decode, graphics engine, motion judder reduction and 
motion blur removal features, and extensive network interface capability, FLI7560 enables 3DTVs to deliver rich applications 
for convenient access to multimedia content, both from within the home, as well as from the web. 
 
Features 
 
ST231@450MHz for advanced HD video decoding (H.264/VC-1/MPEG2/…). 
ÆWorldwide DTT broadcast video standards. 
 
Dual ST231@450MHz for advanced multichannel audio decoding (MPEG-1/2, MP3, WMA, Dolby® Digital/Dolby Digital+, 
AAC/AAC+/…) 
Æ Worldwide DTT broadcast audio standards. 
 
Dual ST40 CPU@450MHz (delivers 1600+DMIPS) runs Linux and OS21 
Æ One CPU fully dedicated to application and user interface. 
 
256 Kbyte level 2 cache --> For high performance Internet TV applications. 
 
Faroudja® video processing for Main Video --> Vivid picture quality for the consumer. 
 
Full support for HDMI 1.4b mandatory 3DTV input formats. 
 
Horizontal/vertical image flip support all panel types. 
 
Faroudja MCTi™ Frame Rate Conversion (FRC) for 2D and 3D content (film and video). 
 
Higher performance for SMART TV with more responsive navigation. 
 
3DTV support 120 Hz (line-interleaved) and 60L60R (frame-sequential). 
 
Integrates auto 2D to 3D video/text conversion and depth control. 
 
Worldwide analog audio demodulator. 
 
14-bit Advanced Color Management (3D) and Contrast processing --> Ultimate video quality for OEMs and consumers. 
 
High-quality graphics for rich, easy-to-use GUI. 
 
Advanced security supporting embedded CA, CI/CI+ and DRM apps; copy protection support including HDCP, AES/DES/TDES, 
RoviTM. 
 
48-bit (3 x 16 or 1 x 16 + 1 x 32) DDR2/DDR31066 Mbps DRAM I/F --> Performance and flexibility with DRAM ICs. 
 
Quad high-speed 10-bit LVDS outputs --> convenient connectivity to panel TCON. 
    MAJOR ICs  INFORMATION ( continued )
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