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VESTEL 17MB45-2, Service Manual

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VESTEL 17MB45-2 Service Manual Download Page 37

39

12 BLOCK DIAGRAMS

12.1 General Block Diagram

Summary of Contents for 17MB45-2

Page 1: ...OLLER MSTAR 11 5 1 Genaral Description 11 5 2 Features 12 6 INTEGRATED DVB T RECEIVER CHEERTEK 13 6 1 General Description 13 6 2 Features 13 7 4MX16 BIT SYNCHRONOUS DRAM DIGITAL SIDE SDRAM 16 7 1 Gene...

Page 2: ...am 39 12 2 Integrated DVB T Receiver Block Diagram 41 12 3 17MB45 Analog Front End 42 12 4 17MB45 Digital Front End 42 12 5 17MB45 Digital CI ve Smart Card Interface 43 12 6 17MB45 HDMI Inputs 43 12 7...

Page 3: ...ugh a cable The USB feature is supported through digital part of the mainboard 1 RF input VHF1 VHF3 UHF 75Ohm Common 1 Side AV CVBS R L_Audio Common 1 SCART socket Common 1 PC input Common 1 Headphone...

Page 4: ...l Half NIM tuner for COFDM Covers 3 Bands From 48MHz to 862MHz for COFDM From 45 25MHz to 863 25MHz for CCIR CH Including IF AGC with SAW Filter Bandwidth Switching 7 8 MHz possible DC DC Converter bu...

Page 5: ...1 2 Features TV IF audio filter with two channels Channel 1 L with one pass band for sound carriers at 40 40 MHz L and 39 75 MHz L NICAM Channel 2 B G D K L I with one pass band for sound carriers bet...

Page 6: ...8 3 1 4 Frequency Response Frequency Response of Channel 1 Frequency Response of Channel 2...

Page 7: ...K3958M 3 2 1 Standarts B G D K I L L 3 2 2 Features TV IF filter with Nyquist slopes at 33 90 MHz and 38 90 MHz Constant group delay 3 2 3 Pin Configuration 1 Input 2 Input ground 3 Chip carrier groun...

Page 8: ...io quality PT2333 s external circuitry is simple and easily accessible and consists of flawless self protection capabilities The chip s packaging is small thus it occupies an insignificant amount of s...

Page 9: ...h an integrated DVI HDCP HDMI receiver a multi standard TV video and audio decoder a video deinterlacer a scaling engine the MSTARACE 3 color engine an on screen display controller and a built in outp...

Page 10: ...12 5 2 Features...

Page 11: ...lexer DVB CSA compliant de scrambler RISC MPUs MPEG 1 2 4 AV decoder digital T encoder audio DACs USB 2 0 HS host controller memory card reader smart card reader CI controller and other peripherals Cl...

Page 12: ...ES demultiplexing OneTS path CI CAM interface 216 pin only 32 general purpose PID filters 32 Section filters CRC 32 accelerator DVB CSA de scramblers Video Decoding and Processing MPEG 2 MP ML MPEG 4...

Page 13: ...outs VBI insertion for Teletext CC and WSS Color burst amplitude control Programmable sync level On chip color bar generator High Speed I O USB 2 0 HS host controller Memory card reader with SD MMC an...

Page 14: ...ed to provide a self timed row precharge that is initiated at the end of the burst sequence The refresh functions either Auto or Self Refresh are easy to use By having a programmable mode register the...

Page 15: ...17 7 3 Pin Configuration...

Page 16: ...aogram command The device supports Sector Erase and Bulk Erase commands Each device requires only a 3 0 volt power supply 2 7V to 3 6V for both read and write functions Internally generated and regula...

Page 17: ...pin SO package 208 mils 8 Contact WSON Package 6x8 mm Pb Free Performance Characteristics Speed 50Mhz clock rate miximum Power Saving Standby Mode Standby Mode 50 A max Deep Power Down Mode 1 3 A typ...

Page 18: ...led to provide a self timed row precharge that is initiated at the end of the burst sequence The refresh functions either Auto or Self Refresh are easy to use By having a programmable mode register th...

Page 19: ...21 9 3 Pinning...

Page 20: ...wer board is used with 19 MB45TV set 2 lamp panel and IPS17 power board is used with 22 MB45TV set 4 lamp panel These are supplied 12V 5V_stby and 5V panel supplies Also regulators step downs and mosf...

Page 21: ...by the entire memory array can be write protected by connecting WP pin to VCC This section of memory then becomes unalterable until the WP pin is switched to VSS Features Extended operating voltage 2...

Page 22: ...ow Power Consumption Typical Supply Current 200 A Per Amplifier Wide Common Mode and Differential Voltage Ranges Low Input Bias and Offset Currents Common Mode Input Voltage Range Includes VCC Output...

Page 23: ...tion of signals on the B Port due to both switches temporarily being enabled during select pin switching The device is specified to operate over the 1 65 to 5 5V VCC operating range The control input...

Page 24: ...21 is an EEPROM which is used for storing the VGA output resolution information General Description The ST24LC21 is a 1K bit electrically erasable programmable memory EEPROM organized by 8 Bits This d...

Page 25: ...ng Enhanced Esd Latch Up Performances Pin Configuration 11 6 TDA1308T TDA1308T is a class AB stereo headphone driver which is used as a headphone amplifier on MB45 mainboard General Description The TD...

Page 26: ...urrent limiter which is used for switching the USB interface on MB45 mainboard General Description The STMPS2161 power distribution switches are intended for applications where heavy capacitive loads...

Page 27: ...damage Recovery from a thermal shutdown is automatic once the device has cooled sufficiently Internal circuitry ensures the switch remains off until a valid input voltage is present Features 90 m hig...

Page 28: ...to ground line The internal unique design of clamping cell prevents over voltage on the power line protecting any downstream components Besides there is a back drive protection design in AZ1045 04SU...

Page 29: ...r MOSFET It achieves 3A continuous output current over a wide input supply range with excellent load and line regulation Current mode operation provides fast transient response and eases loop stabiliz...

Page 30: ...Ceramic Capacitors Up to 95 Efficiency 20 A Shutdown Mode Fixed 385KHz frequency Thermal Shutdown Cycle by Cycle Over Current Protection Wide 4 75 to 23V operating Input Range Output Adjustable From...

Page 31: ...ed voltages 1 8V 2 5V 2 85V 3 3V and 5V The LM1117 offers current limiting and thermal shutdown Its circuit includes a zener trimmed bandgap reference to as sure output voltage accuracy to within 1 Th...

Page 32: ...that runs from a single cell Lithium Ion Li battery Each converter can supply 800mA of load current from a 2 5V to 6V input voltage The output voltage can be regulated as low as 0 6V The MP2109 can al...

Page 33: ...tain low gate charge for superior switching performance These devices have been design to offer exceptional power dissipation in a very small footprint for applications where larger packages are impra...

Page 34: ...de the Digital TV signals are filtered using a standard dependent high rejection channel fitler and converted to a user programmable output frequency At the output of the D A converter the DTV signal...

Page 35: ...ltering and frequency conversion functions for DTV with an external demodulator through LOW IF or DDI The XC5000 s integrated tuner is based on proprietary tunable wideband active RF filtering technol...

Page 36: ...38...

Page 37: ...39 12 BLOCK DIAGRAMS 12 1 General Block Diagram...

Page 38: ......

Page 39: ...12 2 Integrated DVB T Receiver Block Diagram...

Page 40: ...42 12 3 17MB45 Analog Front End 12 4 17MB45 Digital Front End...

Page 41: ...43 12 5 17MB45 Digital CI ve Smart Card Interface 12 6 17MB45 HDMI Inputs...

Page 42: ...12 7 17MB45 Analog Interface MSTAR IC...

Page 43: ...12 8 17MB45 Analog Input Output 12 9 17MB45 LVDS Output...

Page 44: ...46 12 10 17MB45 Power...

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