LC-37XD1E/RU
5 – 1
LC-37XD1E
Service Manual
CHAPTER 5. MAJOR IC INFORMATIONS
[1] MAJOR IC INFORMATIONS
1. DESCRIPTION OF MAJOR ICs
REF NO Name Part Code Discruotion
Dwg.
Code
IC1905 HDMI-
Receiver
VHISII9023+-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-IXB755WJZZQ 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
IC3502
256Mb-DDR
SDRAM
RH-IXB765WJQZQ This is a 256Mb DDR SDRAM IC. This IC features a double-data rate dynamic random-
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 Pro-
cessor, etc.
M4
IC3503 128Mbit-
FLASH
Memory
RH-IXB754WJZZQ 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-IXB753WJZZY 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 pro-
gressive.
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
Transmitters/
Receivers
VHIICL3225E-1Y This IC is a line driver receiver in conformity with EIA/TIA-232-E(former RS-232C)stan-
dard.
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 synchronous
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
Converter
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
Converter
VHIMP1583++-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 RH-IXA992WJZZY This IC is a 2-wire (I2C bus type) serial EEPROM that is electrically programmable.
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.
IC2303 E2PROM VHIBR24C21F-1Y This IC is a 2-wire (I2C bus type) serial EEPROM this is electrically programmable.
The EEPROM chip stores the EDID data of PC input. This data is controlled through
I2C signals.
IC1702 BU+3.3V VHIPQ20WZ11-1Y Low power-loss voltage regulators. Variable Output. Output current 1A.
Built-in overcurrent, overheat protection functions,ASO protection circuit.
IC1703 S+8V VHIPQ20WZ11-1Y Low power-loss voltage regulators. Variable Output. Output current 1A.
Built-in overcurrent, overheat protection functions,ASO protection circuit.
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