DOWNLOAD Sharp LC-46XL1E (serv.man5) Service Manual ↓ Size: 7.14 MB | Pages: 32 in PDF or view online for FREE

Model
LC-46XL1E (serv.man5)
Pages
32
Size
7.14 MB
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PDF
Document
Service Manual
Brand
Device
TV / LCD / Major IC Informations
File
lc-46xl1e-sm5.pdf
Date

Sharp LC-46XL1E (serv.man5) Service Manual ▷ View online

LC-46XL1E/RU, LC-52XL1E/RU
5 – 1
LC46XL1E
Service Manual
 
CHAPTER 5. 
MAJOR IC INFORMATIONS
[1] MAJOR IC INFORMATIONS
1. DESCRIPTION OF MAJOR ICs
Ref No.
Name
Part Code
Description
Dwg. 
Code
IC1905    
HDMI-Receiver
VHiSii9025+-1Q
The SiI9025 is a second generation panel Link Cinema receiver that is compati-
ble with the HDMI 1.2 (High Definition Multimedia interface) specification.
The SiI9025 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 is as follow.
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 
PROCESSOR
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 Combfilter
5) OSD and Text
6) PC Connectivity
M3
IC3501
IC3502
256Mb-DDR 
SDRAM
RH-iXB765WJZZQ
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 
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
IC3702
AK4363VF
VHiAK4363VF-1Y
The AK4363 is a stereo CMOS D/A Converter and Phase Locked Loop for use in 
digital video broadcast set-top box applications or DVD. The DAC signal outputs 
are single-ended and are analog filtered to remove out of band noise.
Therefore no external filters are required. The PLL provides selectable sampling 
clock frequencies locked to the 27MHz recovered MPEG clock.
M5
IC3301    
FRC B2 Version
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 
Transmitters/
Receivers
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
CPLD
RH-iXB946WJZZQ
This IC is C.P.L.D (Complex Programmable Logic Device) 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 regulator with a built in inter-
nal power MOSFET. 
In this model, it works to 1.8V regulator.
M8
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 regulator.
M8
IC3001
E2PROM
RH-iXA992WJZZY
(VHiBR24L64F-1Y)
The BR24L64F 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.
M1
LC-46XL1E/RU, LC-52XL1E/RU
5 – 2
IC1901
IC1902
E2PROM
VHi24LC2BiN-1Y
This IC is a 2-wire (I2C bus type) serial EEPROM this is electrically programma-
ble.
The EEPROM chip stores the EDID data of HDMI input.
This data is controlled through I2C signals.
M1
IC2303
E2PROM
VHiBR24C21F-1Y
This IC is a 2-wire (I2C bus type) serial EEPROM this is electrically programma-
ble.
The EEPROM chip stores the EDID data of PC input.
This data is controlled through I2C signals.
M5
[AV SECTION]
IC301 
IC302
Sound Amp
VHiTDA8931T-1Y
The TDA8931 is a switching power stage for high efficiency class-D audio power 
amplifier systems.
With this amplifier a compact 1x 20 W closed loop self-oscillating digital amplifier 
system can be built. 
In this model, Audio amplifier is 15watt *2.
AV1
[POWER SECTION]
Z1
Switching 
Regulator
SPT9001
This IC is a power supply for the switching regulator on the primary side. 
Overvoltage/overcurrent protection circuit, other protection circuits and control 
circuits are built in this IC.
P1
IC702
Switching 
Regulator
STR-W6765
This IC is a power supply for the switching regulator on the primary side. 
The STR-W6765 is a Low EMI noise and soft switching designed for SMPS 
applications.
P1
IC701
Power Factor 
Correction IC
MC33262
The MC33262 are active power factor controllers specifically designed for use as 
a preconverter in electronic ballast and in off.line power converter applications.
P1
[DIGITAL SECTION]
IC4001
DTV-
PROCESSOR
RH-iXB680WJZZQ
This is a video/audio signal processing IC (Digital Processor) (STi5516) for digital 
tuner, which has been manufactured by STMicroelectronics, and incorporates a 
CPU. In this equipment, it implements GUI processing and video/audio process-
ing for digital tuner, negotiation processing with CI-CARD, etc. 
D1
IC4201
IC4202
64M-SDRAM
RH-iXB742WJZZQ
This IC is 64Mb SDRAM (static dynamic random-access memory) IC.
In this equipment, it is used for SMI memory (for image processing), and data is 
used for operation of the digital processor.                                                                                                                                                           
D2
IC4203
16Mbit-FLASH
RH-iXC100WJZZQ
This IC is a high performance CMOS super technology 16Mbit Flash Memory.
Start software (loader) for the CPU with a built-in digital processor and application 
software have been written on this Flash Memory. 
The digital processor reads these softwares on start-up and implements them.
D2
IC4402/05    RATCH-
3 STATE
VHiLVC573FT-1Y
This is a RATCH-3 STATE output IC. In this equipment, it is used to establish 
negotiation communication with CI-CARD.
D3
IC4401
BALANCE 
TRANCEIVER
VHiLCX245FT-1Y
This IC is a low voltage (3.3V) CMOS 8bit bidirectional transceiver. When setting 
the transmission direction change input DIR to “H”, the A bus is switched to input 
and the B bus is changed to output; if the DIR is set to “L”, the B bus is switched 
to input and the A bus is changed to output. When setting the enable input OE to 
“H”, both A and B buses enter the high impedance state. In this equipment, it 
used to switch bus of the data from CICARD. 
D3
IC4404
BUS Buffer
VHiLCX244FT-1Y
This lC is fabricated with an advanced CMOS technology to achieve high speed 
operation while maintaining CMOS low power dissipation. 
In this equipment, it is used to control negotiation communication with CI-CARD.
D3
IC4604
3-OP-AMP
VHiTSH73CPT-1Y
This IC is a Triple operational amplifiers featuring high video performances with 
large bandwidth, low distortion and excellent supply voltage rejection. In this 
equipment, it is used to convert audio output signal of the digital processor to nor-
mal analog signal level and to buffer it.
D4
[DIGITAL TUNER section]
IC201
IF-PLL-DEMOD
VHiTDA9886+-1
The TDA9886 is an alignment-free multistandard (PAL, SECAM and NTSC) 
Vision and sound IF signal PLL demodulator for positive and negative modula-
tion, including sound AM and FM processing.
TUNER
IC202
COFDM Demod 
IC
RH-iXB964WJZZQ
This is a COFDM (Coded Orthogonal Frequency Division Multiplex) Demodulator 
IC. In this equipment, IF signal from the digital tuner is decoded to MPEG-2 sig-
nal, and it is digitally output. Output signal is fed to the digital processor to imple-
ment video/audio decode processing. This IC is used for digital signal is fed to the 
digital processor to implement video/audio decode processing.
This IC is used for digital tuner only.
TUNER
[FRC SECTION]
IC6281/82
LVDS-Receiver
VHiTLVD104S-1Q
This is a 30bits color LVDS (Low-Voltage Differential Signaling) receiver IC.
At a transmit clock frequency of 112MHz, 30bits of RGB data and 5bits of timing 
and control data (HSYNC, VSYNC, DE, CNTL1, CNTL2) are transmitted at an 
effective rate of 784Mbps per LVDS channel.
F1
Ref No.
Name
Part Code
Description
Dwg. 
Code
LC-46XL1E/RU, LC-52XL1E/RU
5 – 3
IC6341
FPGA
RH-iXC029WJQZQ
This is an FPGA (Field Programmable Gate Array) IC.
In this unit, it performs phase difference absorption of ODD/EVEN of the video 
input signal, I2C slave address conversion, and identification of the pulse drive 
system.
F2
IC6342
PROM
RH-iXC030WJQZQ
This is a PROM (Programmable Read Only Memory) IC.
This IC stores the program contents of FPGA (IC6341).
F2
IC5801
FRC
RH-iXB857WJZZQ
This is an FRC (Field Rate Converter) IC.
This IC supports the vertical frequency at double speed of 120Hz and reduces 
afterimages.
F3
IC6001
IC6002
IC6003
128M-SDRAM
RH-iXB822WJQZQ
This IC is 128-Mbit GDDR SDRAM (Graphic Double Data Rate Synchronous 
DRAM), providing a memory for image processing and buffering OSD data.
In this unit, it stores a frame of two screens and intermediate processing informa-
tion for forming interpolation images.
F4
IC6004
Termination-
REG
RH-iXA361WJZZY
This is a termination linear regulator IC for DDR-SDRAM.
This IC incorporates a high-speed operation amplifier providing excellent 
response against load variation.
The output stage can provide continuous load current of 1.5A and supports varia-
tion peak of maximum 3A.
F4
IC6211
IC6212
LVDS-
Transmitter
VHiTLVD1023-1Q
This is an LVDS (Low-Voltage Differential Signaling) transmitter IC.
This transmitter is designed to support Single Link transmission between Host 
and Flat Panel Display up to 1080p resolutions and Dual Link transmission 
between Host and Flat Panel Display up to QXGA resolutions.
This IC converts 67bits of CMOS/TTL data into LVDS (Low Voltage Differential 
Signaling) data stream.
F5
IC4802
IC4803
Chopper REG
RH-iXA552WJZZY
This is a PWM chopper regulator IC.
This IC is equipped with the output voltage ON/OFF function, overcurrent shut-
down function, overheat protection function, standby low power consumption 
function, and soft start circuit.
In this unit, it forms a 2.5V regulator circuit.
F6
IC4801
DC/DC-CONV
VHiTPS40055-1Y
This is a DC/DC converter IC.
In this unit, it forms a 1.2V regulator circuit.
The TPS4005x is a family of high-voltage, wide input (8 V to 40 V), synchronous, 
step-down converters. The TPS4005x family offers design flexibility with a variety 
of user programmable functions, including soft-start, UVLO, operating frequency, 
voltage feed- forward, high-side current limit, and loop compensation. current 
limit, and loop compensation.
F6
Ref No.
Name
Part Code
Description
Dwg. 
Code
LC-46XL1E/RU, LC-52XL1E/RU
5 – 4
2. IC201: VHiTDA9886+-1
IF-PLL DEMODULATORS 
Pin No.
Pin Name
I/O
Pin Function
1
VIF1
I
VIF differential input 1
2
VIF2
I
VIF differential input 2
3
OP1
O
Output port 1; open-collector.
4
FMPLL
I
FM-PLL for loop filter.
5
DEEM
O
De-emphasis output for capacitor.
6
AFD
I
AF decoupling input for capacitor
7
DGND
Digital ground.
8
AUD
O
audio output.
9
TOP
I
tuner AGC TakeOver Pint (TOP) for resistor adjustment.
10
SDA
I/O
I2C-bus data input and output.
11
SCL
I
I2C-bus clock input.
12
SIOMAD
O
sound intercarrier output and MAD select with resistor.
13
N.C.
not connected.
14
TAGC
O
tuner AGC output.
15
REF
I
4 MHz crystal or reference signal input.
16
VAGC(1)
I
VIF-AGC for capacitor.
17
CVBS
O
composite video output.
18
AGND
analog ground.
19
VPLL
I
VIF-PLL for loop filter.
20
VP
supply voltage.
21
AFC
O
AFC output.
22
OP2
O
output port 2; open-collector.
23
SIF1
I
SIF differential input 1 and MAD select with resistor.
24
SIF2
I
SIF differential input 2 and MAD select with resistor.
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