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LC-37SD1E/RU
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Ref No.
Name
Part Code
Description
Drawing
Name
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.
M6
IC1708
+1.8V
VHIMP1410ES-1Y
DC to DC Converter. 2A Step down switch mode regulator with a built in inter-
nal Power Mosfet.
Fault condition protection includes cycle-by-cycle current limiting and thermal
shutdown.
nal Power Mosfet.
Fault condition protection includes cycle-by-cycle current limiting and thermal
shutdown.
M6
IC1706
BU+1.8V
VHIMP1410ES-1Y
DC to DC Converter. 2A Step down switch mode regulator with a built in inter-
nal Power Mosfet.
Fault condition protection includes cycle-by-cycle current limiting and thermal
shutdown.
nal Power Mosfet.
Fault condition protection includes cycle-by-cycle current limiting and thermal
shutdown.
M6
KD604FM (AV UNIT)
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 ampli-
fier system can be built.
In this model, Audio amplifier is 10watt.
power amplifier systems.
With this amplifier a compact 1x 20 W closed loop self-oscillating digital ampli-
fier system can be built.
In this model, Audio amplifier is 10watt.
AV1
KD605FM (POWER UNIT)
IC705
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
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.
Overvoltage/overcurrent protection circuit, other protection circuits and control
circuits are built in this IC.
P1
KD628FM (DIDGITAL UNIT)
IC4001
IC4001
DTV-PROCES-
SOR
SOR
RH-IXB680WJZZQ This is a video/audio signal processing IC (Digital Processor) (STi5516) for dig-
ital tuner, which has been manufactured by STMicroelectronics, and incorpo-
rates a CPU. In this equipment, it implements GUI processing and video/audio
processing for digital tuner, negotiation processing with CI-CARD, etc.
rates a CPU. In this equipment, it implements GUI processing and video/audio
processing for digital tuner, negotiation processing with CI-CARD, etc.
D1
C4201
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.
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.
used for operation of the digital processor.
D2
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 applica-
tion software have been written on this Flash Memory.
The digital processor reads these softwares on start-up and implements them.
tion 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
STATE
VHILVC573AP-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
VHITCLCX245-2Y
This IC is a low voltage (3.3V) CMOS 8bit bidirectional transceiver. When set-
ting 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.
ting 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
Buffer/Line
Driver
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
speed 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
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.
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.
D4
KD609FM (D-TUNER UNIT)
IC201
IC201
IF-
Demodurator/
PLL
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 modula-
tion in cluding sound AM and FM processing.
vision and sound IF signal PLL demodulator for positive and negative modula-
tion in cluding sound AM and FM processing.
TUNER
IC202
COFDM Demod
IC
IC
RH-IXB682WJZZQ This is a COFDM (Coded Orthogonal Frequency Division Multiplex) Demodula-
tor 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.
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.
TUNER
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