Read Sharp LC-52XL1E (serv.man5) Service Manual online
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
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