Sharp LC-42XD1EA (serv.man5) Service Manual ▷ View online
LC-42XD1EA/RUA
5 – 1
LC42XD1EA
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
Receiver
VHiSii9025+-1Q
The Sii9025 is a second generation panel Link 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:
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
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
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
IC3502
256Mb-DDR
SDRAM
SDRAM
RH-iXB765WJQZQ
This is a 256Mb DDR SDRAM IC. This IC features a double-data rate dynamic ran-
dom-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.
dom-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
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.
The Flash Memory stores the main program hat is used for the CPU.
M4
IC3504
D-TYPE
RATCH
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.
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 Multi standard Sound Processors covers the sound
processing of all analog TV-Standards worldwide, as well as the NICAM digital sound
standards and FM stereo radio.
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
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
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.
standard.
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 synchro-
nous processing of each digitalized input signal.
This IC functions as extended I/O of the main micro controller and controls timing of
bus signals among ICs, etc.
nous processing of each digitalized input signal.
This IC functions as extended I/O of the main micro controller 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.
power MOSFET.
In this model, it works to 1.8V regurator.
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 regurator.
In this model, it works to BU1.8V regurator.
M8
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.
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
IC1901
IC1902
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.
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 programmable.
The EEPROM chip stores the EDID data of PC input. This data is controlled through
I2C signals.
The EEPROM chip stores the EDID data of PC input. This data is controlled through
I2C signals.
M7
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.
Built-in overcurrent, overheat protection functions, ASO protection circuit.
M8
LC-42XD1EA/RUA
5 – 2
IC1703
S+8V
VHiPQ20WZ11-1Y
Low power-loss voltage regulators. Variable Output. Output current 1A.
Built-in overcurrent, overheat protection functions, ASO protection circuit.
Built-in overcurrent, overheat protection functions, ASO protection circuit.
IC1706
BU+1.8V
VHiMP1410ES-1Y
DC to DC Converter. 2A Step down switch mode regulator with a built in internal
Power Mosfet.
Fault condition protection includes cycle-by-cycle current limiting and thermal shut-
down.
Power Mosfet.
Fault condition protection includes cycle-by-cycle current limiting and thermal shut-
down.
IC1707
+3.3V
VHiPQ20WZ11-1Y
Low power-loss voltage regulators. Variable Output. Output current 1A.
Built-in overcurrent, overheat protection functions, ASO protection circuit.
Built-in overcurrent, overheat protection functions, ASO protection circuit.
IC1708
+1.8V
VHiMP1410ES-1Y
DC to DC Converter. 2A Step down switch mode regulator with a built in internal
Power Mosfet.
Fault condition protection includes cycle-by-cycle current limiting and thermal shut-
down.
Power Mosfet.
Fault condition protection includes cycle-by-cycle current limiting and thermal shut-
down.
IC1712
BU+2.5V
VHiMP1410ES-1Y
DC to DC Converter. 2A Step down switch mode regulator with a built in internal
Power Mosfet.
Fault condition protection includes cycle-by-cycle current limiting and thermal shut-
down.
Power Mosfet.
Fault condition protection includes cycle-by-cycle current limiting and thermal shut-
down.
[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 sys-
tem 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 sys-
tem can be built.
In this model, Audio amplifier is 15watt *2.
AV1
[POWER SECTION]
IC701
IC701
Power Factor
Correction
Correction
MC33262
This IC is active power factor controllers specifically designed for use as a precon-
verter in electronic ballast and in off?line power converter applications.
verter in electronic ballast and in off?line power converter applications.
IC702
Switching
Regulator
Regulator
STR-W6765
This IC is switching regulator IC.
It provides a soft-switching operation to turn on the internal MOSFET at close to zero
voltage (VDS bottom point) by use of the resonant characteristic of primary induc-
tance and a resonant capacitor.
It provides a soft-switching operation to turn on the internal MOSFET at close to zero
voltage (VDS bottom point) by use of the resonant characteristic of primary induc-
tance and a resonant capacitor.
Z1
Switching
Regulator
Regulator
SPF9001
This IC is switching regulator IC.
[DIGITAL SECTION]
IC4001
IC4001
DTV-PRO-
CESSOR
CESSOR
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 processing for digi-
tal 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 processing for digi-
tal tuner, negotiation processing with CI-CARD, etc.
D1
IC4201
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
IC4202
64M-SDRAM
RH-iXB742WJZZQ
This IC is 64Mb SDRAM (static dynamic random-access memory) IC.
In this equipment, it is used for EMI memory (generally for CPU), and data is used for
operation of the digital processor.
In this equipment, it is used for EMI memory (generally for CPU), and data is used for
operation of the digital processor.
D2
IC4203
16Mbit-
FLASH
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
VHiLCX573FT-1Y
This is a RATCH-3 STATE output IC.
In this equipment, it is used to establish negotiation communication with CI-CARD.
In this equipment, it is used to establish negotiation communication with CI-CARD.
D3
IC4401
BALANCE
TRAN-
CEIVER
TRAN-
CEIVER
VHiTCLCX245-2Y
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 is used to switch bus of
the data from CI-CARD.
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 is used to switch bus of
the data from CI-CARD.
D3
IC4404
Buffer/Line
Driver
Driver
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
normal analog signal level and to buffer it.
bandwidth, low distortion and excellent supply voltage rejection.
In this equipment, it is used to convert audio output signal of the digital processor to
normal analog signal level and to buffer it.
D4
[DIGITAL TUNER SECTION]
IC201
IC201
IF-PLL
Demodurator
Demodurator
VHITDA9886+-1
This IC is an alignment-free multistandard (PAL, SECAM and NTSC) vision and
sound IF signal PLL demodulator for positive and negative modulation, including
sound AM and FM processing.
sound IF signal PLL demodulator for positive and negative modulation, including
sound AM and FM processing.
TUNER
Ref No.
Name
Part Code
Description
Dwg.
Code
LC-42XD1EA/RUA
5 – 3
IC202
DVB-T
RECEIVER
RECEIVER
RH-IXB964WJZZQ
This IC is an OFDM demodulation single chip which converts the IF input signal of
OFDM into the MPEG2 signal and outputs it, and is a demodulation IC for ground-
based broadcasting including compressed video, audio, and data service.
This IC complies with DVB-T(ETS 300 744).
OFDM into the MPEG2 signal and outputs it, and is a demodulation IC for ground-
based broadcasting including compressed video, audio, and data service.
This IC complies with DVB-T(ETS 300 744).
TUNER
Ref No.
Name
Part Code
Description
Dwg.
Code
LC-42XD1EA/RUA
5 – 4
2. IC1905: VHISii9025+-1Q
HDMI RECIEVER
Pin No.
Pin Name
I/O
Pin Function
144
Q0
O
24-bit Output Pixel Data Bus. HDMI-B[0]
143
Q1
O
24-bit Output Pixel Data Bus. HDMI-B[1]
142
Q2
O
24-bit Output Pixel Data Bus. HDMI-B[2]
141
Q3
O
24-bit Output Pixel Data Bus. HDMI-B[3]
140
Q4
O
24-bit Output Pixel Data Bus. HDMI-B[4]
137
Q5
O
24-bit Output Pixel Data Bus. HDMI-B[5]
136
Q6
O
24-bit Output Pixel Data Bus. HDMI-B[6]
133
Q7
O
24-bit Output Pixel Data Bus. HDMI-B[7]
132
Q8
O
24-bit Output Pixel Data Bus. HDMI-G[0]
131
Q9
O
24-bit Output Pixel Data Bus. HDMI-G[1]
130
Q10
O
24-bit Output Pixel Data Bus. HDMI-G[2]
129
Q11
O
24-bit Output Pixel Data Bus. HDMI-G[3]
126
Q12
O
24-bit Output Pixel Data Bus. HDMI-G[4]
