Sharp LC-46XD1E/RU, Руководство по обслуживанию

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LC-46/52XD1E-RU
7 – 1
LC-46/52XD1E-RU
Service Manual
CHAPTER 7.
MAJOR IC INFORMATIONS
[1] FUNCTIONS OF MAJOR ICs (VIDEO PROCESSOR)
1. DESCRIPTION OF MAJOR ICs
REF NO Name Part Code Discruotion
Dwg.
Code
IC1905 HDMI-Receiver VHI-1Q The SiI9023 is a second generation panelLink Cinema receiver that is compatible
with the HDMI 1.1 (High Definition Multimedia interface)specification. The SiI9023 is
capable of receiving and outputting two channel digital audio at up to 192KHz - an
excellent solution for Digital TVs. The features of this IC are as follows.
1) Digital video interface supports video processors:
2) Analog RGB and YPbPr output: 10-bit DAC
3) Digital audio interface supports high-end audio systems: M1
IC3002 VIDEO PRO-
CESSOR RH-IXB755WJZZ This is a video processor IC.
This IC has the following six major functions.
1) Video Processing
2) CPU
3) Scaling, Display Processing
4) Video decoder and 3D Comb filter
5) OSD and Text
6) PC Connectivity M3
IC3501 256Mb-DDR
SDRAM RH-IXB765WJZZQ This is a 256Mb DDR SDRAM IC. This IC features a double-data rate dynamic ran-
dom-access memory containing 16M-bits columns by 16 bits.
In this model, it uses it as a memory for the micon and a frame memory for Video
Processor, etc. M4
IC3502 256Mb-DDR
SDRAM RH-IXB765WJZZQ This model uses it as a memory for the microcomputer and a frame memory for
Video Processor, etc.
In this model, it uses it as a memory for the micon and a frame memory for Video
Processor, etc. M4
IC3503 128Mbit-
FLASH
Memory RH-IXB754WJZZ This IC is a NOR-type 128Mbit Flash Memory.
The Flash Memory stores the main program hat is used for the CPU. M4
IC3504 D-TYPE
RATCH RH-IXB753WJZZ This is a 16bit D-type RATCH-3 state output IC.
On this model, the IC is used to transfer the main program from the flash memory to
the CPU. M4
IC3701 MSP4410K RH-IXB752WJZZQ This MSP (4410K) of single-chip Multistandard Sound Processors covers the sound
processing of all analog TV-Standards worldwide, as well as the NICAM digital
sound standards and FM stereo radio. M5
IC3301 FRC B2 Ver-
sion RH-IXB064WJN1Q This is an IC for Frame Rate Converter.
This IC mainly processes I/P conversion: Standard 50/60 Hz interlaced to 50/60 Hz
progressive.
It also has the following functions:
1 ) Image Improvement: (Chroma Transient Improvement, Luminance Transient
Improvement, Dynamic Contrast Improvement, Back Stretcher)
2) Film mode detection (2-2/3-2 pull down)
3) Film judder cancellation. M6
IC2301 RS232C Trans-
mitters/Receiv-
ers VHIICL3225E-1Y This IC is a line driver receiver in conformity with EIA/TIA-232-E(former RS-
232C)standard.
By connecting a PC, the system can be controlled externally. M7
IC1710 FPGA RH-IXB946WJZZQ This IC is F.P.G.A (Field Pogramable Gate Arrays) for signal selector and synchro-
nous processing of each digitalized input signal.
This IC functions as extended I/O of the main microcontroller and controls timing of
bus signals among ICs, etc. M8
IC1712/08 Stepdown Con-
verter
VHIMP1410ES-1Y The MP1410 is a monolithic step down switch mode regurator with a built in internal
power MOSFET.
In this model, it works to 1.8V regurator. M9
IC1706 Stepdown Con-
verter VH+-1Y The MP1583 is a step-down DC-DC converter of Class 3A current capacity.
In this model, it works to BU1.8V regurator. M9
IC3001 E2PROM VHIBR24L64F-1Y The BR24L64F is a 2-wire (I2C bus type) serial EEPROM that is electrically pro-
grammable.
This IC serves to store the adjustment and other data in the adjustment process
mode.
The data is given out by commands from the main microprocessor.
IC1901
IC1902 E2PROM VHI24LC2BIN-1Y This IC is a 2-wire (I2C bus type) serial EEPROM this is electrically programmable.
The EEPROM chip stores the EDID data of HDMI input. This data is controlled
through I2C signals.