vestel 17MB22 Schematic

TABLE OF CONTENTS

1. INTRODUCTION.......................................................................................................................5

2. TUNER........................................................................................................................................ 5

2.1 General description of UV1316:........................ ... ..... ..... ... ..... ... ..... ...... .. ...... .. ...... ..... ... ....5

2.2 Features of UV1316:..... .. ..................................................................................................5

2.3 Pinning: ........................................... ................................... ................................... ............ 6

3. AUDIO AMPLIFIER STAGE WITH MP7722................................................... .......................6

3.1 General Description................. ...... .. ...... ..... ... ..... ... ..... ..... ... ..... ... ..... ... ..... ...... .. ...... .. ...... ....6

3.2 Features ................................................................. .. ................................ ... .......................6

3.3 Applications ....................................................... ..... ...... .. ...... ..... ... ..... ..... ... ..... ...... .. .......... 7

3.4 Absolute Ratings..................... ...... .. ...... ..... ... ..... ..... ... ..... ...... .. ...... ..... ... ..... ..... ... ..... ... ....... 7

3.5 Pinning ............................................................ ................................... ...............................7

4. POWER STAGE.........................................................................................................................7

5. MICROCONTROLLER (VCTP) ...............................................................................................8

5.1 General Features.................................... ..... ..... ... ..... ... ..... ...... .. ...... ..... ... ..... ... ..... ..... ... .......8

5.2 Multistandard Sound Processor (MSP) Features ..............................................................9

5.3 Video Features......................... ... ..... ... ..... ...... .. ...... ..... ... ..... ... ..... ..... ... ..... ... ..... ...... .. .......... 9

5.4 Controller Features........................ .. ...... ..... ... ..... ... ..... ..... ... ..... ...... .. ...... ..... ... ..... ..... ... ... ..10

5.5 OSD & Teletext Features.............................................................. .. ...... ..... ... ..... ..... ... .....11

5.6 Port Allocation ........................................................................ ................................... . .... 11

6. DRX 3961A............................................................................................... ................................20

6.1 General Desription .................................. ...... .. ...... ..... ... ..... ..... ... ..... ...... .. ...... ..... ... ..... ... ..20

6.2 Features ................................................................. .. ................................ ... .....................20

7. SERIAL 64K I2C EEPROM M24C64WBN6..........................................................................21

7.1 General Description................. ...... .. ...... ..... ... ..... ... ..... ..... ... ..... ... ..... ... ..... ...... .. ...... .. ...... ..21

7.2 Features ................................................................. .. ................................ ... .....................21

7.3 Absolute Maximum Ratings.......................... ..... ..... ... ..... ...... .. ...... .. ...... ..... ... ..... ..... ... .....22

7.4 Pinning ............................................................ ................................... .............................22

8. CLASS AB STEREO HEADPHONE DRIVER TDA1308........................ ... ..........................22

8.1. General Description................... .....................................................................................22

8.2 Features ................................................................. .. ................................ ... .....................22

8.3. Pinning ........................................................................................................................... 23

9. SAW FILTER X6966M............................................................................................................ 23

9.1 Features:.......................................................... ... ................................ ... ..........................23

9.2 Pin configuration:............ ... .............................................................................................24

9.3 Frequency response:.............................................................. .. ................................... ..... 24

10. IC DESCRIPTIONS AND INTERNAL BLOCK DIAGRAM.............................................25

10.1. LM1117............................................................................................................................ 25

10.1.1. General Description.............. ................................................................ ... ..................25

10.1.2. Features.....................................................................................................................25

10.1.3. Applications .................................................................................... ..........................25

10.1.4. Absolute Maximum Ratings......................................................................................26

10.1.5. Pinning ...................................................................................................................... 26

10.2. LM1086............................................................................................................................ 26

10.2.1. General Description.............. ................................................................ ... ..................26

10.2.2. Features.....................................................................................................................26

10.2.3. Applications .................................................................................... ..........................26

10.2.4. Absolute Maximum Ratings......................................................................................27

10.2.5. Pinning ...................................................................................................................... 27

10.3. MP1593............................................................................................................................ 27

10.3.1. General Description.............. ................................................................ ... ..................2

10.3.2. Features.....................................................................................................................28

10.3.3. Applications .................................................................................... ..........................28

10.3.4. Absolute Maximum Ratings......................................................................................28

10.3.5. Electrical Characteristics...........................................................................................29

10.3.6. Pinning ...................................................................................................................... 29

10.4. FDC642P..........................................................................................................................30

10.4.1. General Description............................. ... .................................. ................................30

10.4.2 . Features ............................................ ................................... .....................................30

10.4.3. Absolute Maximum Ratings......................................................................................30

10.4.4. Pinning ...................................................................................................................... 30

10.5. SIL9011............................................................................................................................31

10.5.1 Features .................................... .. ................................................................................31

10.6. 24LC02........... .................................. ................................... ................................... .......... 31

10.6.1. General Description.............. ................................................................ ... ..................31

10.6.2 Features .................................... .. ................................................................................31

10.6.3 Pinning ............................................................. .................................. ... .....................32

10.7. µPA672T..........................................................................................................................32

10.7.1. General Description.............. ................................................................ ... ..................32

10.7.2. Features.....................................................................................................................33

10.7.3 Absolute Maximum Ratings..................... ..... ..... ... ..... ... ..... ...... .. ...... ..... ... ..... ..... ... .....33

10.7.4 Pinning ............................................................. .................................. ... .....................33

10.8. M74HC4052..................................................................................................................... 33

10.8.1. General Description.............. ................................................................ ... ..................33

10.8.2. Features.....................................................................................................................33

10.8.3 Absolute Maximum Ratings..................... ..... ..... ... ..... ... ..... ...... .. ...... ..... ... ..... ..... ... .....34

10.8.4 Pinning ............................................................. .................................. ... .....................34

10.9. Max809.............................................................................................................................35

10.9.1. General Description.............. ................................................................ ... ..................35

10.9.2. Features.....................................................................................................................35

10.9.3 Absolute Maximum Ratings..................... ..... ..... ... ..... ... ..... ...... .. ...... ..... ... ..... ..... ... .....35

10.9.4 Pinning ............................................................. .................................. ... .....................36

10.10. 24LC21......................................................... .................................. ................................37

10.10.1. General Description................. ...... ..... ... ..... ... ..... ..... ... ..... ...... .. ...... .. ...... ..... ... ..... ... ..37

10.10.2. Features................................. ..................................................................................37

10.10.3 Absolute Maximum Ratings..................... ................................... .............................37

10.10.4 Pinning ..................................................................................................................... 38

11.SERVICE MENU SETTINGS.................................................................................................38

11.1. Video Setup........................................ .. ...... ..... ... ..... ... ..... ..... ... ..... ...... .. ...... ..... ... ..... ..... 38

11.2. AudioSetup........... ...... .. ...... ..... ... ..... ..... ... ..... ...... .. ...... ..... ..... ... ..... ...... .. ...... ..... ... ..... ..... 38

11.3. Options 1............................ ..... ... ..... ..... ... ..... ...... .. ...... ..... ... ..... ..... ... ..... ... ..... ...... .. ........ 39

11.4. Options 2............................ ..... ... ..... ..... ... ..... ...... .. ...... ..... ... ..... ..... ... ..... ... ..... ...... .. ........ 40

11.5. Service Scan/Tuning Setup.................................. ... .....................................................41

11.6. External Source Settings.............................. ................................................................41

11.7. Picture Mode................................................................................................................41

11.8. Reset TV-Set........................ ...... .. ...... ..... ... ..... ..... ... ..... ... ..... ...... .. ...... ..... ... ..... ..... ... ..... 42

12. SOFTWARE UPDATE DESCRIPTION.............................. .. ................................................ 42

12.1 Analog Software Update Vi a I

C...................................................................................... 42

12.2 Analog Software Update Via UART ................................................................................43

13. BLOCK DIAGRAMS................................... ..... ... ..... ..... ... ..... ... ..... ...... .. ...... ..... ... ..... ..... ... .....44

13.1. General Block Diagram............................... ... ..................................................................44

13.2. Power Management..........................................................................................................45

13.3. DRX (IF Demodulator) Block Diagram........................................................................... 46

13.4. VCTP.............................................. .. ................................... ............................................. 47

13.4.1. General Block Diagram........................................................ ................................ ... ..47

13.4.2. MSP Block Diagram................................................................................................. 48

13.4.3 Video Processor of VCT 6wxyP Block Diagram................................................49

1. INTRODUCTION

17MB22 Main Board consists of Micronas concept, VCTP as controller. This IC is capable of handling Audio processing, video processing, motion adaptive upconversion(MAU), Scaling-Display processing and FPD control (DPS),unified memory for audio video and Text, 3D comb filter-PC connectivity , OSD and text processing. TV supports PAL, SECAM, NTSC colour standards and multiple transmission standards as B/G, D/K, I/I’, and L/L’ including German and NICAM stereo.

Sound system output is supplying 2x8W (10%THD) for stereo 8 speakers. Supported peripherals are:

1 RF input VHF1, VHF3, UHF @ 75Ohm 1 FAV input 2 SCART sockets 1 SVHS input 1 Stereo Headphone input 1 YPbPr 1 PC input 1 HDMI input 1 Stereo audio input for PC

2. TUNER

As the thickness of the TV set has a limit, a horizontal mounted tuner is used in the product, which is suitable for CCIR systems B/G, H, L/ L’, I/I’, and D/K. The tuning is available through the digitally controlled I2C bus (PLL). Below you will find info on the Tuner in use.

2.1 General description of UV1316:

The UV1316 tuner belongs to the UV 1300 family of tuners, which are designed to meet a wide range of applications. It is a combined VHF, UHF tuner suitable for CCIR systems B/G, H, L, L’, I and I’. The low IF output impedance has been designed for direct drive of a wide variety of SAW filters with sufficient suppression of triple transient.

2.2 Features of UV1316:

• Member of the UV1300 family small sized UHF/VHF tuners

• Systems CCIR: B/G, H, L, L’, I and I’; OIRT: D/K

• Digitally controlled (PLL) tuning via I2C-bus

• Off-air channels, S-cable channels and Hyper band

• Compact size

• Complies with the requirements of radiation, signal handling capability and

immunity conforming to European standards “CENELEC EN55020” and “EN55013”.

2.3 Pinning:

3. AUDIO AMPLIFIER STAGE WITH MP7722

3.1 General Description

The MP7722 is a stereo 20W Class D Audio amplifier, intended for use as low frequency power amplifier in a wide range of applications in radio and TV sets. It uses a minimum number of external components to complete a stereo Class D audio amplifier.

3.2 Features

• 2 x 20W Output at VDD = 24V into a 4 load

• THD+N = 0.06% at 1W, 8

• 93% Efficiency at 20W

• Low Noise (190µV Typical)

• Switching Frequency Up to 1MHz

• 9.5V to 24V Operation from a Single Supply

• Integrated Startup and Shutdown Pop Elimination Circuit

• Thermal and Short Circuit Protection

• Integrated 180m Switches

• Mute/Standby Modes (Sleep)

• Thermally Enhanced 20-Pin TSSOP Package with Exposed Pad

3.3 Application s

• Surround Sound DVD Systems

• Televisions

• Flat Panel Monitors

• Multimedia Computers

• Home Stereo Systems

3.4 Absolute Ratings

3.5 Pinning

4. POWER STAGE

The DC voltages required at various parts of the chassis and inverters are provided by a main power supply unit and power interface board. The main power supply unit is designed for 24V and 12V DC supply. Power stage which is on-chasis generates +24V for audio amplifier, 1.8V and 3.3V stand by voltage and 8V, 12V, 5V and 3.3V supplies for other different parts of the chassis.

5. MICROCONTROLLER (VCTP)

5.1 General Feat ures

The VCT 6wxyP is dedicated to high-quality FPD and double-scan TV sets. The VCT 6wxyP family is based on functional blocks contained and approved in existing products like VCT 49xxI, VSP 94x5B, and DPS 94xxA. Each member of the family contains the entire audio, video, up-conversion processing for 4:3 and 16:9 50/ 60 Hz progressive or 100/120 Hz interlaced stereo TV sets and the control/data interface for flat-panel displays. The integrated microcontroller is supported by a powerful OSD and graphics generator with integrated teletext acquisition. Controller:

• High-performance 8-bit microcontroller, 8051 compatible

• Up to 512 kByte in system program Flash

• WST, PDC, VPS, and WSS acquisition

• Closed caption and V-chip acquisition

• Up to 10 page on chip teletext memory

• Up to 1000 pages with internal memory

• Up to 30 GPIO

Audio:

• Multistandard TV-sound demodulation:

-All A2/NICAM standards

-BTSC/SAP with DBX

-EIA-J

• Baseband sound processing for loudspeaker channel:

-Volume, bass, treble, loudness, balance

-Spatial effect (e.g. pseudo stereo)

-Micronas AROUND (Virtual Dolby Surround optional)

-Micronas BASS

-BBE

-SRS WOW

-SRS TruSurround XT

-Lipsync function

Video:

• CVBS, S-VHS, YCrCb and RGB inputs

• HDTV YPrPb and RGB inputs

• ITU656 input

• Linedoubling with vertical detail enhancement (without internal memory)

• State of the art motion adaptive up conversion (with internal memory)

• 4H adaptive comb filter for PAL/NTSC (without internal memory)

• 3D comb filter for PAL/NTSC (with internal memory) (Optional)

• Internal SDR RAM interface

• Powerful horizontal and vertical scaling inclusive

• Nonlinear horizontal scaling “panorama vision”

• picture adaptive image improvements (DCE, LSE, CTI, SCE, NCE)

• non-linear colorspace enhancement (NCE) with 32 programmable slopes and

sections per RGB component (blue stretch, static black stretch, gamma correction).

• Dynamic contrast enhancement (DCE) (histogram based black stretch with peak black and activity detection and contrast adaption)

• Luma sharpness enhancement (LSE)

• Color transient improvement (CTI)

• Selective color enhancement (SCE) for skin tone correction, blue and green

stretch

5.2 Multistandard Sound Processor (MSP) Features

The MSP receives the analog Sound IF signal from the tuner and converts it to digital with its internal SIF-AD converter. The MSP is able to demodulate all TV sound standards worldwide including the digital NICAM system. TV stereo sound standards that are unavailable for a specific VCTP version are processed in analog mono sound of the standard. In that case, stereo or bilingual processing will not be possible.

• Sound IF input

• Worldwide FM/AM-mono sound demodulation

• FM stereo sound demodulation (A2, EIA-J)

• BTSC/SAP demodulation with DBX

• NICAM demodulation

• FM radio & RDS/RBDS demodulation

• Automatic standard detection

• automatic volume correction (AVC)

• Automatic sound select

• Baseband processing for loudspeaker channel:

volume, bass, treble, loudness, balance

-spatial effect (e.g. pseudo stereo)

-Micronas AROUND

-Micronas BASS

-SRS WOW (optional)

-SRS TruSurround XT (optional)

-delayline for lipsync function (shared memory)

-Virtual Dolby Surround (optional)

• 1 I2S input for external ATSC/DVD decoder

• 1 I2S interface for audio delayline

• 1 SPDIF output

• Audio i/o switches

-4 analog stereo line inputs and 2 analog stereo line outputs (configurable 5 analog stereo line inputs and 1 analog stereo line output)

-1 analog stereo loudspeaker output

-1 analog subwoofer output

-1 analog stereo headphone output

5.3 Video Features

The TVT provides an integrated general-purpose, fully 8051-compatible microcontroller with television-specific hardware features. The microcontroller has been enhanced to provide powerful features such as memory banking, data pointer, additional interrupts, shared memory access etc. The TVT has an internal XRAM of 32 KB and a BOOT ROM of 4 KB. For operation the code is fetched from a 16bit FLASH, which can be addressed up to 1 MByte. The controller with dedicated hardware does most of the internal TTX acquisition processing, transfers data to/from external memory interface, and receives/transmits data via I2C-bus interface. In combination with dedicated hardware, the slicer stores TTX data in a VBI buffer of 1 KB. The microcontroller firmware performs all the acquisition tasks (hamming and parity checks, page search, and evaluation of header control bits) once per field. Additionally, the firmware can provide high-end Teletext features like Packet-26 handling, FLOF/TOP and list-pages. The interface-to-user software is optimized for minimal overhead. TVT is realized in deep submicron technology with 1.8 V supply voltage and 3.3 V I/O (TTL compatible).

• 16 analog video inputs (4xCVBS/Y/C + 3xRGB/YCrCb/YPrPb)

• Video input switch matrix

• 3 analog video outputs (integrated Y+C adder)

• 24-bit RGB/H/V/clk input (e.g. ext. DVI decoder) or 656 8bit input

• 656 8bit input/output (e. g. for external high-end up conversion by FRCA)

• Multi-standard color decoder PAL/NTSC/SECAM including all substandards

• 2D adaptive comb filter for PAL/NTSC with vertical peaking

• 3D-comb filter for PAL/NTSC (Optional)

• Macrovision compliant multi-standard sync processing

• Trilevel sync slicer for HDTV

• Macrovision detection

• High-quality soft mixer controlled by Fast Blank (alpha blending)

• Fastblank monitor via I2C

• Noise measurement

• Letterbox detection (auto-wide)

• Split screen (OSD and video side by side) and AV PIP

5.4 Controller F eat u res

The TVT is a Teletext decoder for decoding World System Teletext data, as well as Video Programming System (VPS), Program Delivery Control (PDC), and Wide-Screen Signalling (WSS) data used for PALplus transmissions (line 23). The device also supports Closed Caption acquisition and decoding. The TVT provides an integrated general-purpose, fully 8051-compatible microcontroller with television-specific hardware features. The microcontroller has been enhanced to provide powerful features such as memory banking, data pointer, additional interrupts, shared memory access etc.

• High performance 8-bit microcontroller, 8051 instruction set compatible

• 81 MHz system clock, two machine cycles per instruction

• On-chip debug support (OCDS)

• Up to 512 kByte in system program Flash

• 256 byte on-chip program RAM

• 128 byte on-chip extended stack RAM

• 4-level, 24-input interrupt controller

• Patch module for 16 ROM locations

• Two 16-bit reloadable timers

• Capture compare timer for infrared decoding

• Watchdog timer

• Uart

• Real time clock

• PWM units (2 channels 14-bit, 6 channels 8-bit)

• 8-bit ADC (4 channels)

• I2C bus master/slave interface

• Up to 32 programmable I/O ports

5.5 OSD & Teletext Features

The on-chip display unit for displaying Level 1.5 Teletext data can also be used for customer-defined onscreen displays. The TVT has an internal XRAM of 32 KB and a BOOT ROM of 4 KB. For operation the code is fetched from a 16bit FLASH, which can be addressed up to 1 MByte. In combination with dedicated hardware, the slicer stores TTX data in a VBI buffer of 1 KB. The microcontroller firmware performs all the acquisition tasks (hamming and parity checks, page search, and evaluation of header control bits) once per field. Additionally, the firmware can provide high-end Teletext features like Packet-26 handling, FLOF/TOP and list-pages. The interface-to-user software is optimized for minimal overhead.

5.6 Port Allocati o n

+ 34 hidden pages