LC-40LE820E (serv.man12). Major IC Informations — Sharp TV Service Manual (repair manual)

Model
LC-40LE820E (serv.man12)
Pages
1 Few pages! See other manuals at the bottom of the first or last page.
Size
105.33 KB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD / Major IC Informations
File
lc-40le820e-sm12.pdf
Date

View Sharp LC-40LE820E (serv.man12) Service Manual online

LC-40/46/52LE820E, LC-40/46LU820E
8 – 1
LC-40LE820E
Service Manual
 
CHAPTER 8. 
MAJOR IC INFORMATIONS
[1] MAJOR IC INFORMATIONS
REF NO
Name
Part Code
Description
[MAIN UNIT]
IC8401
RH-iXC147WJQZQ
Flash
This IC is 512MB NAND flash memory.
This IC stores the software data that processes the system of TV such as the 
graphic processing, the LCD controls, and backlights etc. 
IC3302
RH-iXC951WJN1Q
Main CPU
This IC is Video Processor & MAIN CPU. 
In this IC, the decode processing and the video signal processing are done. 
Moreover, OSD is generated here and added to a picture signal.
IC2002
RH-iXC786WJQZQ
for service
(RH-iXC786WJNJQ)
UCOM
The monitor microprocessor is intended to communicate with the main CPU and 
to operate the system. 
It also controls power of the entire system.
IC3501/3502 RH-iXC754WJQZQ
DDR
This IC is 1GB DDR2 SDRAM.
This IC operates as a memory of IC3302 (Video Processor). ***
IC501
VHi24LC21AT-1Y 
for service
(RH-iXD108WJQZS)
1K bit E2PROM
This IC is a 1Kbit-2-wire (I2C bus type) serial EEPROM that can be pro-
grammed electrically. The EEPROM chip stores the EDID data of PC input.
This data is controlled through I2C signals.
IC8455
VHiR24064AS-1Y
64K bit E2PROM
The BR24S64W is a 64Kbit-2-wire (I2C bus type) serial EEPROM that can be 
programmed electrically.
This IC stores the menu data and the adjustment value data of adjustment pro-
cess mode etc.
The data is given out by commands from the main microprocessor.
IC506
VHiM3221EIP-1Y
RS232C-DRIVER
The MAX3221E is a single driver, single receiver RS-232 solution operating 
from a single Vcc supply. The RS-232 pins provide IEC G1000-4-2 ESD Protec-
tion. The device meets the requirements of TIA/EIA-232-F and provides the 
electrical interface between an asynchronous communication controler and the 
serial-port connector. The charge pump and four small external capacitors allow 
operation from a single 3V to 5.5V supply. 
IC4405 
VHiMT8295AE-1Q
CI controler
This is a control IC for PCMCIA cards. This controls information on IC cards 
inserted into the PCMCIA card slot (SC4401) or information on software version 
upgrade cards saved on flash memories to transfer the data to CPUs and mem-
ories.
IC2004
VHiR24002AS-1Y
2K bit E2PROM
This is a 2Kbit-2-wire (I2C bus type) serial EEPROM that can be programmed 
electrically.
This IC stores the menu data and the adjustment value data of adjustment pro-
cess mode etc.
The data is given out by commands from the main microprocessor.
IC1504
VHiSii9287+-1Q
HDMI_Port _Processor
The SiI9287 HDMI port processor is the second generation of HDMI devices 
that support revision 1.3 of the HDMI specification. The main feature is as fol-
lows. 
1) 4-input, 1-output HDMI port processor.
2) Integrated TMDS receiver and transmitter cores capable of receiving and 
transmitting at 2.25Gbps.
3) Supports video resolutions up to 1080p, 60Hz, 12bit or 720p/1080i, 
120Hz,12bit.
4) Receiver fully comply with DVI1.0, HDCP1.1 and HDMI1.3 specifications.
IC1106
VHiSTV0297E-1Q
COFDM
The STV0297E’s demodulator is a complete QAM (quadrature amplitude modu-
lation) demodulation and FEC (forward error correction) solution that performs 
IF to transport
stream block processing of QAM signals. It is intended for the digital transmis-
sion of compressed television, sound, and data services over cable. 
IC9501
VHiKSZ8041T-1Y
Ethernet Bus Interface
This IC is a single supply 10Base-T/100Base-TX Physical Layer Transceiver, 
which provides MII/RMII/SMII interfaces to transmit and receive data.
IC2701
VHiYSS951VZ-1Y
Sound processor
This IC is the Sound processing LSI with built-in two DSP (MDSP/SDSP) and 
FM (frequency modulation) oscillators. 
This IC process sound signal and sent it to AMP for Speaker and Woofer
IC2702/2703 VHiYDA164QZ-1Y
Audio-AMP
This IC is digital audio power amplifier with digital audio interface.
The power-supply voltage is corresponded to A.8V~18V and the maximum out-
put is 20Wx2ch. 
Display

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  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).