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CHAPTER 8.
LC-46LE925E
MAJOR IC INFORMATIONS
[1] MAJOR IC INFORMATIONS
REF NO
Name
[MAIN UNIT]
IC8401
RH-iXD047WJQZQ
IC3302
RH-iXC951WJN1Q
IC2002
RH-iXC786WJQZQ
for service
(RH-iXC786WJNYQ)
IC3501
RH-iXC754WJQZQ
IC3502
IC509
VHiR24002AS-1Y
for service
(RH-IXD212WJQZS)
IC8455
VHiR24064AS-1Y
IC506
VHiM3221EiP-1Y
IC4405
VHiMT8295AE-1Q
IC2004
VHiR24002AS-1Y
IC1504
VHiSii9387+-1Q
IC1106
VHiSTV0297E-1Q
IC9501
VHiKSZ8041T-1Y
IC2701
VHiYSS951VZ-1Y
IC2702
VHiYDA164QZ-1Y
IC2703
IC1301
RH-iXC563WJQZY
IC2401
RH-iXD182WJQZQ
IC2403
RH-iXD183WJQZQ
IC2402
VHiLVD1023B1EQ
Part Code
Flash
This IC is 1024Mbit NAND flash memory.
This IC stores the software data that processes the system of TV such as the graphic process-
ing, the LCD controls, and backlights etc.
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.
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.
DDR
This IC is 1GB DDR2 SDRAM.
This IC operates as a memory of IC3302 (Video Processor).
1K bit
This IC is a 1Kbit-2-wire (I2C bus type) serial EEPROM that can be programmed electrically.
E2PROM
The EEPROM chip stores the EDID data of PC input.
This data is controlled through I2C signals.
64K bit
The BR24S64W is a 64Kbit-2-wire (I2C bus type) serial EEPROM that can be programmed
E2PROM
electrically.
This IC stores the menu data and the adjustment value data of adjustment process mode etc.
The data is given out by commands from the main microprocessor.
RS232C-
The MAX3221E is a single driver, single receiver RS-232 solution operating from a single Vcc
DRIVER
supply. The RS-232 pins provide IEC G1000-4-2 ESD Protection.
The device meets the requirements of TIA/EIA-232-F and provides the electrical interface
between an asynchronous communication controller and the serial-port connector. The charge
pump and four small external capacitors allow operation from a single 3V to 5.5V supply.
CI controller
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 memories.
2K bit
This is a 2Kbit-2-wire (I2C bus type) serial EEPROM that can be programmed electrically.
E2PROM
This IC stores the menu data and the adjustment value data of adjustment process mode etc.
The data is given out by commands from the main microprocessor.
HDMI_Port_
The Sii9387 HDMI port processor is the second generation of HDMI devices that support revi-
Processor
sion 1.4 of the HDMI specification.
The main feature is as follows.
1) 5-input, 1-output HDMI port processor.
2) Audio Return Channel that allows an S/PDIF uplink from HDMI sink device to an HDMI
source available in one reciver port
3) Integrated TMDS receiver and transmitter cores capable of receiving and transmitting at
2.25Gbps.
4) Supports video resolutions up to 1080p, 60Hz, 12bit or 720p/1080i, 120Hz,12bit.
5) Receiver fully comply with DVI1.0, HDCP and several optional 3D formats described in the
HDMI1.4 specifications.
QAM
The STV0297E's demodulator is a complete QAM (quadrature amplitude modulation) demodu-
Demodulator
lation and FEC (forward error correction) solution that performs IF to transport stream block
processing of QAM signals. It is intended for the digital transmission of compressed television,
sound, and data services over cable.
Ethernet Bus
This IC is a single supply 10Base-T/100Base-TX Physical Layer Transceiver, which provides
Interface
MII/RMII/SMII interfaces to transmit and receive data.
Sound
This IC is the Sound processing LSI with built-in two DSP (MDSP/SDSP) and FM (frequency
processor
modulation) oscillators.
This IC process sound signal and sent it to AMP for Speaker and Woofer.
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 output is 20Wx2ch.
LNB supply
It is IC for amplifying the feeble electric wave sent from satellite broadcasting on the level which
and control
can treat a decoder, and changing and processing signal.
FPGA
This IC is Field Programmable Gate Array to change LVDS format.
Config ROM
This IC is serial Flash memory (16Mbit) provides a shorage solution for systems with limited
space, pins and power.
LVDS
This IC is LVDS transmitter that is designed to support Single Link transmission.
transmitter
This converts 67bits of CMOS/TTL data into LVDS data stream.
In Dual Link, the transmit clock frequency of 136MHz, 67bits of RGM data are transmitted at an
effective rate of 945Mbps per LVDS channel.
Service Manual
Description
8 – 1
LC-46/60LE925E
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