Sharp LC-24LE210E (serv.man16) Service Manual ▷ View online
29
LC-24LE210
LC-24LE220
LC-24LE220
1. General ICs Information
• IC 201 (LE210): Digital DVBT / VIF Demodulator
Part number: MSB1220LQFP
Sharp code: RH-IXC868WJZZQ
Sharp code: RH-IXC868WJZZQ
The MSB1220-LF is a DVB-T demodulator. It is fully compliant with the DVB-T (ETSI ET 300 744), D-Book 5.0 and Nor-
dig unifi ed specifi cation. Converts IF differential signals to MPEG-2/4 transport stream format. It can be used in all 2k,
4k and 8 k modes. The device includes a high performance 11 bit A/D converter capable of accepting direct IF at 36 or
44 Mhz. A digital fi lter with high rejection capability is also cope with digital or analog adjacent channel. The frequency
capture range is suffi cient to compensate for the combined offset introduced by the tuner and broadcaster without re-
programming the tuner.
dig unifi ed specifi cation. Converts IF differential signals to MPEG-2/4 transport stream format. It can be used in all 2k,
4k and 8 k modes. The device includes a high performance 11 bit A/D converter capable of accepting direct IF at 36 or
44 Mhz. A digital fi lter with high rejection capability is also cope with digital or analog adjacent channel. The frequency
capture range is suffi cient to compensate for the combined offset introduced by the tuner and broadcaster without re-
programming the tuner.
• IC 201 (LE220): Digital DVBT / VIF Demodulator
Part number: MSB1222-LF
Sharp code: RH-IXD148WJZZQ
Sharp code: RH-IXD148WJZZQ
The MSB1222-LF is a DVB-T/DVB-C demodulator. It is fully compliant with the DVB-T (ETSI ET 300 744), D-Book 5.0
and Nordig unifi ed specifi cation. Also is compliant with DVB-C (EN 300429) and ITU-T J.83 Annex A/C. Converts IF dif-
ferential signals to MPEG-2/4 transport stream format. It can be used in all 2k, 4k and 8 k modes. The device includes
a high performance 11 bit A/D converter capable of accepting direct IF at 36 or 44 Mhz. A digital fi lter with high rejection
capability is also cope with digital or analog adjacent channel. The frequency capture range is suffi cient to compensate
for the combined offset introduced by the tuner and broadcaster without re-programming the tuner.
and Nordig unifi ed specifi cation. Also is compliant with DVB-C (EN 300429) and ITU-T J.83 Annex A/C. Converts IF dif-
ferential signals to MPEG-2/4 transport stream format. It can be used in all 2k, 4k and 8 k modes. The device includes
a high performance 11 bit A/D converter capable of accepting direct IF at 36 or 44 Mhz. A digital fi lter with high rejection
capability is also cope with digital or analog adjacent channel. The frequency capture range is suffi cient to compensate
for the combined offset introduced by the tuner and broadcaster without re-programming the tuner.
• IC 306: Audio power IC
Part number: MSH 9000-LF
Sharp code : RH-IXC867WJQZY
Sharp code : RH-IXC867WJQZY
10W-Ch audio power class-D operation for driving bridged-tied stereo speakers.
• IC 309: Headphones amplifi er.
Part number: BH3547-E2
Sharp code: VHIBH3547F+-1L
Sharp code: VHIBH3547F+-1L
The BH3547 is a 6 dB gain headphones amplifi er. It built-in mute function for preventing pop noise when power supply
turns On or Off.
Moreover , built-in thermal shutdown circuit to prevent short circuit .
turns On or Off.
Moreover , built-in thermal shutdown circuit to prevent short circuit .
• IC 1007 : 64M-Bit Serial Flash
Part number: MX25L6445EMI-10G-TR
Sharp code: RH-IXD012WJZZY
Sharp code: RH-IXD012WJZZY
The MX25L6445EMI ia a 64 M-Bit serial fl ash, 3,3 V single operation. The fl ash memory stores the main software that
is used for the main CPU (IC 1001).
is used for the main CPU (IC 1001).
• IC 1001: All – in – one DTV Processor
Part number: MSD3303GX
Sharp code : RH-IXC869WJQZQ
Sharp code : RH-IXC869WJQZQ
The MSD3303GX is a system one chip for fl at panel integrated digital television. It integrating MPEG2 and h.264 high defi nition
video decoders into a single device. By including a fl exible AV decoder capable of decoding a plethora of high defi nition, USB
connectivity and a powerful CPU.
video decoders into a single device. By including a fl exible AV decoder capable of decoding a plethora of high defi nition, USB
connectivity and a powerful CPU.
• IC 1002 & IC 1003 : 512 Mb DDR2 SDRAM
Part number: K4T51163QI
Sharp code: RH-IXD228WJZZQ
Sharp code: RH-IXD228WJZZQ
The 512Mb DDR2 SDRAM is organized as 16Mbit x 8 I/Os x 4 banks device. This synchronous device achieves high
speed double-data-rate transfer rates of up to 800Mb/sec/pin (DDR2-800) for general applications.
All of the control and address inputs are synchronized with a pair of externally supplied differential clocks (CK rising and
CK falling).
This device operates with single 1,8V power supply .
speed double-data-rate transfer rates of up to 800Mb/sec/pin (DDR2-800) for general applications.
All of the control and address inputs are synchronized with a pair of externally supplied differential clocks (CK rising and
CK falling).
This device operates with single 1,8V power supply .
• IC 1901, IC 1902 & IC 1903 : NVM of HDMI inputs (EDID)
Part number: K24C02C
Sharp code: RH-IXD080WJZZY
Sharp code: RH-IXD080WJZZY
MAJOR ICs INFORMATION
Main Unit ICs:
30
LC-24LE210
LC-24LE220
LC-24LE220
The K24C02C is a 2-wire (I2C bus type) serial EEPROM that is electrically programmable. This NVM memory is as-
sociated to the MAIN MICRO. This EEPROM chip stores the data structure used to carry confi guration information for
optimal use of a display (EDID data) when use a HDMI signal input.
sociated to the MAIN MICRO. This EEPROM chip stores the data structure used to carry confi guration information for
optimal use of a display (EDID data) when use a HDMI signal input.
• IC 1006 : NVM of settings and HDCP data
Part number: IC M24C64
Sharp code: VHIM24C64WN-1Y
Sharp code: VHIM24C64WN-1Y
• IC 8102 : Power supply USB port protection
Part number: AAT4614IGU-2-T1
Sharp code: RH-IXD187WJZZY
Sharp code: RH-IXD187WJZZY
The AAT4614 SmartSwitch is a current limited P-channel MOSFET power switch designed for high side load switching
applications. This switch operates with inputs ranging from 2.4V to 5.5V, making it ideal for both 3V and 5V systems. An
integrated current-limiting circuit protects the input supply against large currents which may cause the supply to fall out of
regulation. Reverse current blocking is provided to protect the load switch from reverse current potentials while the device is
shutdown. The AAT4614 is also protected from thermal overload which is limited by power dissipation and junction tempera-
tures. Current limit threshold is programmed with a resistor from SET to ground and has been adjusted for levels up to 1.1A.
applications. This switch operates with inputs ranging from 2.4V to 5.5V, making it ideal for both 3V and 5V systems. An
integrated current-limiting circuit protects the input supply against large currents which may cause the supply to fall out of
regulation. Reverse current blocking is provided to protect the load switch from reverse current potentials while the device is
shutdown. The AAT4614 is also protected from thermal overload which is limited by power dissipation and junction tempera-
tures. Current limit threshold is programmed with a resistor from SET to ground and has been adjusted for levels up to 1.1A.
Power supply Unit ICs:
• U101: PWM controller IC for 12V & 5.75V
Part number: FAN6753
The highly integrated FAN6753 PWM controller provides several features to enhance the performance of fl yback converters.
To minimize standby power consumption, a proprietary adaptive green-mode function provides frequency modulation at
light-load conditions. To avoid acoustic-noise problems, the minimum PWM frequency is set above 22KHz. This green-mode
function enables the power supply to meet international power conservation requirements. With the internal high-voltage
startup circuitry, the power loss due to bleeding resistors is also eliminated. FAN6753 integrates a full-range frequency-hop-
ping function internally that helps reduce EMI emission of a power supply with minimum line fi lters. Its built-in synchronized
slope compensation achieves stable peak-current-mode control.
FAN6753 provides many protection functions. In addition to cycle-by-cycle current limiting, the internal open-loop protection
circuit ensures safety should an open-loop or output short-circuit failure occur.
Part number: FAN6753
The highly integrated FAN6753 PWM controller provides several features to enhance the performance of fl yback converters.
To minimize standby power consumption, a proprietary adaptive green-mode function provides frequency modulation at
light-load conditions. To avoid acoustic-noise problems, the minimum PWM frequency is set above 22KHz. This green-mode
function enables the power supply to meet international power conservation requirements. With the internal high-voltage
startup circuitry, the power loss due to bleeding resistors is also eliminated. FAN6753 integrates a full-range frequency-hop-
ping function internally that helps reduce EMI emission of a power supply with minimum line fi lters. Its built-in synchronized
slope compensation achieves stable peak-current-mode control.
FAN6753 provides many protection functions. In addition to cycle-by-cycle current limiting, the internal open-loop protection
circuit ensures safety should an open-loop or output short-circuit failure occur.
• U501: PWM standby controller IC for 5Vs
Part number: A6069H
The STR-A6069 is power ICs for switching power supplies, incorporating a power MOSFET and a current-mode type PWM
controller IC. The low standby power is accomplished by the automatic switching between the PWM operation in normal
operation and the burst-oscillation under light load conditions. The product achieves high cost-performance power supply
systems with few external components.
Part number: A6069H
The STR-A6069 is power ICs for switching power supplies, incorporating a power MOSFET and a current-mode type PWM
controller IC. The low standby power is accomplished by the automatic switching between the PWM operation in normal
operation and the burst-oscillation under light load conditions. The product achieves high cost-performance power supply
systems with few external components.
• U901: LED Driver controllers
Part number: MP3389
The MP3389 is a step-up controller with 12-channel current sources designed for driving the WHITE LED arrays for large
size LCD panel backlighting applications. The MP3389 uses current mode, fi xed frequency architecture. The switching
frequency is programmable by an external frequency setting resistor. It drives an external MOSFET to boost up the output
voltage from a 5V to 28V input supply. The MP3389 regulates the current in each LED string to the programmed value set
by an external current setting resistor. The MP3389 applies 12 internal current sources for current balance. And the current
matching can achieve 2.5% regulation accuracy between strings. Its low 600mV regulation voltage on LED current sources
reduces power loss and improves effi ciency. PWM dimming is implemented with external PWM input signal or DC input
signal. The dimming PWM signal can be generated internally, and the dimming frequency is programmed by an external
setting capacitor.
Part number: MP3389
The MP3389 is a step-up controller with 12-channel current sources designed for driving the WHITE LED arrays for large
size LCD panel backlighting applications. The MP3389 uses current mode, fi xed frequency architecture. The switching
frequency is programmable by an external frequency setting resistor. It drives an external MOSFET to boost up the output
voltage from a 5V to 28V input supply. The MP3389 regulates the current in each LED string to the programmed value set
by an external current setting resistor. The MP3389 applies 12 internal current sources for current balance. And the current
matching can achieve 2.5% regulation accuracy between strings. Its low 600mV regulation voltage on LED current sources
reduces power loss and improves effi ciency. PWM dimming is implemented with external PWM input signal or DC input
signal. The dimming PWM signal can be generated internally, and the dimming frequency is programmed by an external
setting capacitor.
31
LC-24LE210
LC-24LE220
LC-24LE220
2.1. IC201
2.1.1. LE210 Series Block Diagram (MSB1220)
2.1.1. LE210 Series Block Diagram (MSB1220)
2.1.1. LE220 Series Block Diagram (MSB1222)
2. Detailed ICs Information
, DUNTKF639WE (Main Unit)
32
LC-24LE210
LC-24LE220
LC-24LE220
Power Pins
Pin Name
Pin Type
Function
AVDD_33
3.3V Power
Analog Power
VDDC
1.2V Power
Digital Core Power
GND Ground
Ground
Misc. Interface
Pin Name
Pin Type
Function
EXTRSTN Input
w/
5V-Tolerant
Chip Reset; Low Reset
IF_AGC Output
IF
AGC
RF_AGC Output
RF
AGC
2.1. IC201 (LE210 & LE220 Series)
2.1.2. Pin Description
2. Detailed ICs Information
, DUNTKF639WE (Main Unit)
(continued)
Serial Interface
Pin Name
Pin Type
Function
I2CS_SCL Input
w/
5V-Tolerant Serial
Clock
I2CS_SDA I/O
w/
5V-Tolerant Serial
Data
I2CM_SCL I/O
w/
5V-Tolerant Serial
Clock
Tuner
I2CM_SDA I/O
w/
5V-Tolerant Serial
Data
Tuner
Analog Interface
Pin Name
Pin Type
Function
SSIFO Analog
output SSIF
Output
CVBSOUT Analog
output CVBS
Output
CLKO Analog
output Clock
Output
VR27 Analog
output
SIFIP
Analog input
SIF Positive Input
SIFIM
Analog input
SIF Negative Input
VIFIM
Analog input
VIF Positive Input
VIFIP
Analog input
VIF Negative Input
VREFM
Analog input
Analog Reference Pin
VREFP
Analog input
Analog Reference Pin
ZIF_QM
Analog input
ADC ZIF Q Negative Input
ZIF_QP
Analog input
ADC ZIF Q Positive Input
ZIF_IM
Analog input
ADC ZIF I Negative Input
ZIF_IP
Analog input
ADC ZIF I Positive Input
XIN
Crystal
Oscillator
Input
XOUT
Crystal Oscillator Output
Transport Stream Interface
Pin Name
Pin Type
Function
TS_DATA[7:0] Output
Transport Stream Data Bus Bit [7:0]
TS_VALID Output
Transport Stream Data Valid
TS_SYNC Output
Transport
Stream
Packet
Start
TS_CLK
Output
Transport Stream Clock Out