Sharp LC-32DH500E (serv.man10) Service Manual ▷ View online
29
1. General ICs Information
• IC201: Digital DVBT / VIF Demodulator
Part number: MSB1220LQFP
Sharp code: RH-IXC868WJZZY
Sharp code: RH-IXC868WJZZY
The MSB1220L is a multistandard analog TV receiver and DVB-T demodulator. It is fully compliant with the DVB-T
specifi cation and Nor Dig unifi ed specifi cation. Converts IF differential signals to MPEG-2 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 frecuency capture range is suffi cient to compensate for the combined offset introduced by the tuner and broadcaster
without re-programming the tuner.
It contains a signal processor to offer high quality reception of analog terrestrial multistandard signal.
specifi cation and Nor Dig unifi ed specifi cation. Converts IF differential signals to MPEG-2 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 frecuency capture range is suffi cient to compensate for the combined offset introduced by the tuner and broadcaster
without re-programming the tuner.
It contains a signal processor to offer high quality reception of analog terrestrial multistandard signal.
• 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: BH3544F
Sharp code: VHIBH3544F+-1Y
Sharp code: VHIBH3544F+-1Y
The BH3544F 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 : 128M-Bit Serial Flash
Part number: MX25L12805DMI
Sharp code: RH-IXC870WJZZY
Sharp code: RH-IXC870WJZZY
The MX25L12805DMI ia a 128 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).
that is used for the main CPU (IC 1001).
• IC 1001: All – in – one DTV Processor
Part number: MSD3303GX
Sharp code : RH-IXC869WJQZY
Sharp code : RH-IXC869WJQZY
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: MK4T51163QG
Sharp code: RH-IXC505WJQZQ
Sharp code: RH-IXC505WJQZQ
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 : NVM of HDMI inputs (EDID)
Part number: M24C02W81EY
Sharp code: VHIM24C02W61EY
Sharp code: VHIM24C02W61EY
The M24C02W81EY is a 2-wire (I2C bus type) serial EEPROM that is electrically programmable. This NVM memory is
associated 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.
associated 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 M24512-WMN6T ST
Sharp code: RH-IXC986WJZZY
Sharp code: RH-IXC986WJZZY
• IC 8101 : Power supply USB port protection
Part number: BD6535G
Sharp code: VHIBD6538G+-1Y
Sharp code: VHIBD6538G+-1Y
Soft start function witch are required for the power supply port protection. 500 mA continuous current load
.
MAJOR ICs INFORMATION
LC-32DH500
30
2.1. IC201 (MSB1220LQFP)
2.1.1. Block Diagram
2.1.2. Pin Description
RF/IF
AGC
11-bit
ADC x 2
VIF
Front End
OSC
& PLL
DVBT
DEMOD
VIF DBB
DEMOD
DAC
8051
I2C
Tuner
MPEG
RF_AGC
IF_AGC
ZIF_I
ZIF_Q
Video SAW
Audio SAW
24MHz
24MHz
I2CM_SDA
I2CM_SCL
MPEG TS Out
SSIFO
CVBSOUT
I2CS_SDA
I2CS_SCL
Power Pins
Pin Name
Pin Type
Function
Pin
AVDD_33
3.3V Power
Analog Power
2, 7, 14,
18, 26
18, 26
VDDC
1.2V Power
Digital Core Power
32, 47
GND
Ground
Ground
1, 5, 13,
15, 23,
28, 33
15, 23,
28, 33
2. Detailed ICs Information
, DUNTKF261WE (Main Unit)
Misc. Interface
Pin Name
Pin Type
Function
Pin
EXTRSTN Input
w/
5V-Tolerant
Chip Reset; Low Reset
29
IF_AGC Output
IF
AGC
27
RF_AGC Output
RF
AGC
48
LC-32DH500
31
2.1. IC201 (MSB1220LQFP)
2.1.2. Pin Description (continued)
2. Detailed ICs Information
, DUNTKF261WE (Main Unit)
(continued)
Analog Interface
Pin Name
Pin Type
Function
Pin
SSIFO
Analog output
SSIF Output
3
CVBSOUT Analog
output CVBS
Output
4
CLKO
Analog output
Clock Output
6
VR27 Analog
output
8
SIFIP
Analog input
SIF Positive Input
9
SIFIM
Analog input
SIF Negative Input
10
VIFIM
Analog input
VIF Positive Input
11
VIFIP
Analog input
VIF Negative Input
12
VREFM
Analog input
Analog Reference Pin
16
VREFP
Analog input
Analog Reference Pin
17
ZIF_QM
Analog input
ADC ZIF Q Negative Input
19
ZIF_QP
Analog input
ADC ZIF Q Positive Input
20
ZIF_IM Analog
input ADC
ZIF I Negative Input
21
ZIF_IP
Analog input
ADC ZIF I Positive Input
22
XIN
Crystal
Oscillator
Input
24
XOUT
Crystal Oscillator Output
25
Transport Stream Interface
Pin Name
Pin Type
Function
Pin
TS_DATA[7:0]
Output
Transport Stream Data Bus Bit [7:0]
39-46
TS_VALID
Output
Transport Stream Data Valid
38
TS_SYNC
Output
Transport Stream Packet Start
37
TS_CLK
Output
Transport Stream Clock Out
36
Serial Interface
Pin Name
Pin Type
Function
Pin
I2CS_SCL
Input w/ 5V-Tolerant
Serial Clock
34
I2CS_SDA
I/O w/ 5V-Tolerant
Serial Data
35
I2CM_SCL
I/O w/ 5V-Tolerant
Serial Clock Tuner
30
I2CM_SDA
I/O w/ 5V-Tolerant
Serial Data Tuner
31
LC-32DH500
32
2.2. IC 306 (
MSH 9000-LF
)
2.2.1. Functional Block Diagram
2. Detailed ICs Information
, DUNTKF261WE (Main Unit)
(continued)
EN
Bandgap
Digital Control
MUTE
5V Regulator
GND
AVDD
UVP
VIPL
VINL
PGA
Modulator
Output Driver
OCP
HVSSL
HVDDL
FBPL
FBNL
G0
G1
OUTPL
OUTNL
PGA
Modulator
VIPR
VINR
Output Driver
OCP
HVSSR
HVDDR
FBPR
FBNR
OUTPR
OUTNR
LC-32DH500