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:
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
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
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
IC3502
256Mb-DDR
SDRAM
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.
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
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.
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.
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.
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.
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
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.
3) Film judder cancellation.
M6
IC2301
RS232C
Transmitters/
Receivers
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.
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.
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.
nal power MOSFET.
In this model, it works to 1.8V regulator.
M8
IC1706
Stepdown
Converter
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.
In this model, it works to BU1.8V regulator.
M8
IC3001
E2PROM
RH-iXA992WJZZY
(VHiBR24L64F-1Y)
(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.
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
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.
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.
ble.
The EEPROM chip stores the EDID data of PC input.
This data is controlled through I2C signals.
M5
[AV SECTION]
IC301
IC302
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.
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
Z1
Switching
Regulator
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.
Overvoltage/overcurrent protection circuit, other protection circuits and control
circuits are built in this IC.
P1
IC702
Switching
Regulator
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.
The STR-W6765 is a Low EMI noise and soft switching designed for SMPS
applications.
P1
IC701
Power Factor
Correction IC
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.
a preconverter in electronic ballast and in off.line power converter applications.
P1
[DIGITAL SECTION]
IC4001
IC4001
DTV-
PROCESSOR
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.
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
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.
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.
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.
negotiation communication with CI-CARD.
D3
IC4401
BALANCE
TRANCEIVER
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.
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.
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.
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
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.
Vision and sound IF signal PLL demodulator for positive and negative modula-
tion, including sound AM and FM processing.
TUNER
IC202
COFDM Demod
IC
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.
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
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.
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.
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).
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.
This IC supports the vertical frequency at double speed of 120Hz and reduces
afterimages.
F3
IC6001
IC6002
IC6003
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.
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
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.
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
IC6212
LVDS-
Transmitter
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.
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
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.
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.
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.