LC-42SD1E (serv.man5). Major IC Informations - Sharp TV Service Manual (repair manual)

lc-42sd1e (serv.man5) service manual
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LC-42SD1E (serv.man5)
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18
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Service Manual
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Device
TV / LCD / Major IC Informations
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lc-42sd1e-sm5.pdf
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Read Sharp LC-42SD1E (serv.man5) Service Manual online

LC-42SD1E/RU
5 – 1
LC-42SD1E
Service Manual
 
CHAPTER 5. 
MAJOR IC INFORMATIONS
[1] MAJOR IC INFORMATIONS
1. General ICs Information
Ref No.
Name
Part Code
Description
KD890FM (MAIN UNIT)
IC1905
HDMI-Receiver
VHiSii9023+-1Q
The SiI9023 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 feature of this IC is 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:
IC2701
4CH-
MULTIPLEXER
VHiTVHC153T-1Y
This IC is a super high speed CMOS 4-channel multiplexer using the CMOS technology and 
incorporates 2 circuits.
The input consists of 2 addresses A, B, 4 channel inputs C0-C3 and strobe input G, and the 
signal of the channel selected by the address input sent as the output Y.
The strobe input is used for prohibition of data output.
That means, when G input is “H” the output becomes “L” unconditionally.
In this model, this IC operates the switch of H/V-SYNC on each signal condition. 
IC3002
VIDEO 
PROCESSOR
RH-iXB624WJN1Q The VCT 6wxyP family is based on functional blocks contained and approved in existing 
products like VCT 49xxl, VSP 94x5B, and DPS 94xxA.
That is, the following 6 major functions are included:
1) Audio Processing
2) Video Processing
3) Motion Adaptive Upconversion
4) Scaling, Display Processing and FPD
5) Unified memory for Audio, Video and Text Control, 3D Combfilter PC 
Connectivity
6) Controlling, OSD and Text
IC3003
Microcontroller
RH-iXB664WJZZY
This IC is based on LCD Driver and nano Watt Technology and is RISC microprocessor to 
control peripheral functions necessary for the system configuration.
In this equipment, the R/C LED on the AVC side and system on the display side are con-
trolled.       
IC2301
RS232C 
Transmitters/
Receivers
VHiiSL83220-1Y
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.
IC1710
FPGA
RH-iXB823WJZZQ  This IC is F.P.G.A. (Field Programmable 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. 
IC3001
E2PROM
VHiBR24L64F-1Y
The BR24L64F is a 2-wire (I2C bus type) serial EEPROM that is electrically programmable.
This IC saves adjustment values of the adjustment process mode, etc.
The data is given out by commands from the main microprocessor.
IC1901
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.
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.
IC1701
POWER 
RESET
VHiBU4239G+-1Y
Low voltage detector IC with adjustable output delay. Standard Detection Voltage = 3.9V.
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.
IC1703
S+8V
VHiPQ20WZ11-1Y
Low power-loss voltage regulators. Variable Output. Output current 1A.
Built-in overcurrent, overheat protection functions, ASO protection circuit.
IC1707
+3.3V 
VHiPQ20WZ11-1Y
Low power-loss voltage regulators. Variable Output. Output current 1A.
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 shutdown.
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 shutdown.
     LC-42SD1E/RU
5 – 2
Ref No.
Name
Part Code
Description
KD604FM (AV UNIT)
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 10watt.
CA193WJ (POWER UNIT)
IC705
Switching 
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.   
IC704
Switching 
Regulator
VHiMR4030++-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.   
KD628FM (DIDGITAL UNIT)
IC4001
DTV-PROCES-
SOR
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 equip-
ment, it implements GUI processing and video/audio processing for digital tuner, negotiation 
processing with CI-CARD, etc.
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.   
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 opera-
tion of the digital processor.
IC4203
16Mbit-FLASH
RH-iXB681WJZZQ
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.
IC4402/05
RATCH-3 
STATE
VHiLVC573AP-1Y
This is a RATCH-3 STATE output IC. In this equipment, it is used to establish negotiation 
communication with CI-CARD.
IC4401
BALANCE 
TRANCEIVER
VHiTCLCX245-2Y
This IC is a low voltage (3.3V) CMOS 8bit bidirectional transceiver. When setting the trans-
mission 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. 
IC4404
Buffer/Line 
Driver
VHiLCX244MT-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.
IC4604
3-OP-AMP
VHiTSH73CPT
This IC is a Triple operational amplifiers featuring high video performances with large band-
width, 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.
KD609FM (D-TUNER UNIT)
IC201
IF-
Demodurator/
PLL
VHiTDA9886+-1Y
The TDA9886 is an alignment-free multistandard (PAL, SECAM and NTSC) vision and 
sound IF signal PLL demodulator for positive and negative modulation in cluding sound AM 
and FM processing.
IC202
COFDM 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 pro-
cessing. 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.
LC-42SD1E/RU
5 – 3
2. Detailed ICs Information
2.1. IC1905 (VHISII9023+-1Q)
2.1.1 Block Diagram
     LC-42SD1E/RU
5 – 4
2.1.2 Pin Connections and short description
Pin No.
Pin Name
I/O
Pin Function
144
Q0
O
24-bit Output Pixel Data Bus
143
Q1
O
24-bit Output Pixel Data Bus
142
Q2
O
24-bit Output Pixel Data Bus
141
Q3
O
24-bit Output Pixel Data Bus
140
Q4
O
24-bit Output Pixel Data Bus
137
Q5
O
24-bit Output Pixel Data Bus
136
Q6
O
24-bit Output Pixel Data Bus
133
Q7
O
24-bit Output Pixel Data Bus
132
Q8
O
24-bit Output Pixel Data Bus
131
Q9
O
24-bit Output Pixel Data Bus
130
Q10
O
24-bit Output Pixel Data Bus
129
Q11
O
24-bit Output Pixel Data Bus
126
Q12
O
24-bit Output Pixel Data Bus
125
Q13
O
24-bit Output Pixel Data Bus
124
Q14
O
24-bit Output Pixel Data Bus
123
Q15
O
24-bit Output Pixel Data Bus
119
Q16
O
24-bit Output Pixel Data Bus
118
Q17
O
24-bit Output Pixel Data Bus
117
Q18
O
24-bit Output Pixel Data Bus
116
Q19
O
24-bit Output Pixel Data Bus
113
Q20
O
24-bit Output Pixel Data Bus
112
Q21
O
24-bit Output Pixel Data Bus
111
Q22
O
24-bit Output Pixel Data Bus
110
Q23
O
24-bit Output Pixel Data Bus
1
DE
O
Data enable
2
HSYNC
O
Horizontal Sync Output control signal
3
VSYNC
O
Vertical Sync Output control signal
121
ODCK
O
Output Data Clock
97
XTALIN
I
Crystal Clock Input
96
XTALOUT
O
Crystal Clock Output
88
MCLKOUT
O
Audio Master Clock Output
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
Bi-Di
DDC I2C Data for Port 0. 5V Tolerant
30
DSCL1
I
DDC I2C Clock for Port 1. 5V Tolerant
29
DSDA1
Bi-Di
DDC I2C Data for Port 1. 5V Tolerant
28
CSCL
I
Configuration I2C Clock. 5V Tolerant
27
CSDA
Bi-Di
Configuration I2C Data. 5V Tolerant
103
SCDT
O
Indicates active video at HDMI input port
107
CLK48B
Bi-Di
Data Bus Latch Enable. 2
34
R0PWR5V
I
Port 0 Transmitter Detect. 5V Tolerant
33
R1PWR5V
I
Port 1 Transmitter Detect. 5V Tolerant
101
RSVDL
I
Reserved, must be tied Low
56
RSVD_A
Bi-Di
Reserved Pin, leave unconnected
6, 7, 8, 10, 
11, 12, 13, 
14, 17, 18, 
19, 20, 81, 
82, 93, 100
NC
No internal connection
87
MCLKIN
O
Audio Master Clock Input Reference
9
EVNODD
O
Indicates Even or Odd field for interlaced formats. Polarity programmable in register
40
R0XC+
I
TMDS input clock pair. HDMI Port 0
39
R0XC-
I
TMDS input clock pair. HDMI Port 0
44
R0X0+
I
TMDS input data pair. HDMI Port 0
43
R0X0-
I
TMDS input data pair. HDMI Port 0
48
R0X1+
I
TMDS input data pair. HDMI Port 0
47
R0X1-
I
TMDS input data pair. HDMI Port 0
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