Read Sharp LC-37XD10E (serv.man5) Service Manual online
LC-37XD10E/RU
5 – 1
LC37XD10E
Service Manual
CHAPTER 5.
MAJOR IC INFORMATIONS
[1] MAJOR IC INFORMATIONS
1. DESCRIPTION OF MAJOR ICs
REF NO
Name
Part Code
Discruotion
Dwg.
Code
Code
IC1905
HDMI-
Receiver
Receiver
VHISII9025+-1Q
The SiI9025 is a second generation panelLink Cinema receiver that is compatible with
the HDMI 1.1 (High Definition Multimedia interface)specification. The SiI9025 is capa-
ble 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:
the HDMI 1.1 (High Definition Multimedia interface)specification. The SiI9025 is capa-
ble 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 PRO-
CESSOR
CESSOR
RH-IXB755WJZZ
This is a video processor IC.
This IC has the following six major function.
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 function.
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-dara 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-IXB754WJZZ
This IC is a NOR-type 128Mbit Flash Memory.
The Flash-Memory stores the main program that is used for the CPU.
The Flash-Memory stores the main program that is used for the CPU.
M4
IC3504
D-TYPE
RATCH
RATCH
RH-IXB753WJZZ
This IC is a 16bit D-type RATCH-3 state output IC.
On this model, the IC is used to trnsfer the main program from the flash memory to the
CPU.
On this model, the IC is used to trnsfer 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.
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
Improvement, Dynamic Contrast Improvement, Back Stretcher)
2) Film mode detection (2-2/3-2 pull down)
3) Film judder cancellation.
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
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
FPGA
RH-IXB946WJZZQ
This IC is F.P.G.A (Field rogramable 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.
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
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-IXB992WJZZY
This IC is a 2-wire (I2C bus type) serial EEPROM that is electrically programmable.
This IC saves adjustment values of the adjustment process mode.
The data is given out by commands from the main microprocessor.
This IC saves adjustment values of 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.
This EEPROM chip stores EDID data of the input for HDMI.
This data is controlled by the I2C signal.
This EEPROM chip stores EDID data of the input for HDMI.
This data is controlled by the I2C signal.
M1
IC2303
E2PROM
VHIBR24C21F-1Y
This IC is a 2-wire (I2C bus type) serial EEPROM this is electrically programmable.
This EEPROM chip stores EDID data of the input for PC.
This data is controlled by the I2C signal.
This EEPROM chip stores EDID data of the input for PC.
This data is controlled by the I2C signal.
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
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.
M8
LC-37XD10E/RU
5 – 2
IC1706
BU+1.8V
VHIMP1583++-1Y
DC to DC Converter. 3A 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.
Mosfet.
Fault condition protection includes cycle-by-cycle current limiting and thermal shut-
down.
M8
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.
M8
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.
Mosfet.
Fault condition protection includes cycle-by-cycle current limiting and thermal shut-
down.
M8
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.
Mosfet.
Fault condition protection includes cycle-by-cycle current limiting and thermal shut-
down.
M8
[AV SEC-
TION]
IC301
IC302
TION]
IC301
IC302
Sound Amp
VHITDA8931T-1Y
The TDA8931 is a switching power stage for high efficiency class-D audio power ampli-
fier 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.
fier 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
SUPPLY
SECTION]
IC705
SUPPLY
SECTION]
IC705
Switching
Regulator
Regulator
VHIMR4020++-1
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
IC704
Switching
Regulator
Regulator
VHIMR4040++-1
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
IC701
Power Factor
Correction
Correction
VHIFA5501AN-1Y
FA5501AN is a control IC for a power factor correctoin converter using critical conduc-
tion mode.
A CMOS process with high dielectric strength is employed to implement low power
consumption.
This IC contains a correction circuit for light load to suppress rise of output voltage in
light load mode snd an FB short detection circuit for stopping operatoin when the out-
put voltage detection section becomes faulty.
tion mode.
A CMOS process with high dielectric strength is employed to implement low power
consumption.
This IC contains a correction circuit for light load to suppress rise of output voltage in
light load mode snd an FB short detection circuit for stopping operatoin when the out-
put voltage detection section becomes faulty.
P1
[DIGITAL
SECTION]
IC4001
SECTION]
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 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 processing for digital
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-IXB921WJZZQ
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 soft-
ware 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 soft-
ware 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
VHILVC573AP-1Y
This is a RATCH-3 STATE output IC. In this equipment, it is used to establish negotia-
tion communication with CI-CARD.
tion 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 used to switch bus of the
data from CICARD.
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
Buffer/Line
Driver
Driver
VHILCX244MT-1Y
This lC is fabricated with an advanced CMOS technology to achieve high speed opera-
tion while maintaining CMOS low power dissipation.
In this equipment, it is used to control negotiation communication with CI-CARD.
tion 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
LC-37XD10E/RU
5 – 3
[DIGITAL
TUNER
SECTION]
IC202
TUNER
SECTION]
IC202
COFDM
Demod IC
Demod IC
RH-IXB682WJZZQ
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 signal, and it is
digitally output. Output signal is fed to the digital processor to implement 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.
this equipment, IF signal from the digital tuner is decoded to MPEG-2 signal, and it is
digitally output. Output signal is fed to the digital processor to implement 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.
TUN
ER
ER
LC-37XD10E/RU
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]
125
Q13
O
24-bit Output Pixel Data Bus. HDMI-G[5]
124
Q14
O
24-bit Output Pixel Data Bus. HDMI-G[6]
123
Q15
O
24-bit Output Pixel Data Bus. HDMI-G[7]
119
Q16
O
24-bit Output Pixel Data Bus. HDMI-R[0]
118
Q17
O
24-bit Output Pixel Data Bus. HDMI-R[1]
117
Q18
O
24-bit Output Pixel Data Bus. HDMI-R[2]
116
Q19
O
24-bit Output Pixel Data Bus. HDMI-R[3]
113
Q20
O
24-bit Output Pixel Data Bus. HDMI-R[4]
112
Q21
O
24-bit Output Pixel Data Bus. HDMI-R[5]
111
Q22
O
24-bit Output Pixel Data Bus. HDMI-R[6]
110
Q23
O
24-bit Output Pixel Data Bus. HDMI-R[7]
1
DE
O
Data enable.
2
HSYNC
O
Horizontal Sync Output control signal.
3
VSYNC
O
Vertical Syanc Output control signal.
121
ODCK
O
Output Data Clock. HDMI-CLK
97
XTALIN
I
Crystal Clock Input.
96
XTALOUT
O
Crystal Clock Output.
88
MCLKOUT
O
Audio Master Clock Output.
87
MCLKIN
I
Audio Master Clock Input Reference.
86
SCK
O
I2S Serial Clock Output.
85
WS
O
I2S Word Select Output.
84
SDO
O
I2S Serial Data Output.
78
SPDIF
O
S/PDIF Audio Output
77
MUTEOUT
O
Mute Audio Output.
104
INT
O
Interrupt Output.
102
RESET#
I
Reset Pin. Active LOW. 5V Tolerant.
32
DSCL0
I
DDC I2C Clock for Port 0. 5V Tolerant.
31
DSDA0
I/O
DDC I2C Data for Port 0. 5V Tolerant.
30
DSCL1
I
DDC I2C Clock for Port 1. 5V Tolerant.
29
DSDA1
I/O
DDC I2C Data for Port 1. 5V Tolerant.
28
CSCL
I
Configuration I2C Clock. 5V Tolerant.
27
CSDA
I/O
Configuration I2C Data. 5V Tolerant.
103
SCDT
O
Indicates active video at HDMI input port.
107
CLK48B
I/O
Data Bus Latch Enable. 2
34
R0PWR5V
I
Port 0 Transmitter Detect. 5V Tolerant.
33
R1PWR5V
I
Port 1 Transmitter Detect. 5V Tolerant.
101
TEST
I
Test Terminal.
6,7,13,19 VCC
-
VCC (3.3V).
8, 12, 18
GND
-
Ground.
10
RSET
O
Reset Pin.
11
COMP
I
Comparator.
14, 17,
20, 56,
81, 52,
83, 93,
20, 56,
81, 52,
83, 93,
100
NC
I
No internal connection.
9
EVNODD
O
Even/Odd field for interlaced modes.
40
R0XC+
I
TMDS input clock pair. HDMI Port 0.
39
R0XC-
I
TMDS input clock pair. HDMI Port 0.
