VESTEL 17MB12 Service Manual
  1. Manuals
  2. Brands
  3. VESTEL Manuals
  4. TV
  5. 17MB12
  6. Service manual
VESTEL 17MB12 Service Manual

VESTEL 17MB12 Service Manual

Tft
Hide thumbs
Table of Contents

Advertisement

Quick Links

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 17MB12 and is the answer not in the manual?

Questions and answers

Related Manuals for VESTEL 17MB12

Summary of Contents for VESTEL 17MB12

  • Page 2: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION........................5 TUNER............................ 5 General description of DTT71307: ................. 5 Features of DTT71307: ....................5 Pinning: ........................... 6 AUDIO AMPLIFIER STAGE WITH TDA8932 ..............6 General Description......................6 Features ........................... 6 Applications ........................7 Pinning ..........................7 POWER STAGE ........................
  • Page 3 15.1 LM1117......................... 28 15.1.1 General Description....................28 15.1.2 Features ......................... 29 15.1.3 Applications ......................29 15.1.4 Absolute Maximum Ratings.................. 29 15.1.5 Pinning ........................29 15.2 LM1086......................... 29 15.2.1 General Description....................29 15.2.2 Features ......................... 30 15.2.3 Applications ......................30 15.2.4 Absolute Maximum Ratings..................
  • Page 4 16.1 Video Setup ........................41 16.2 AudioSetup........................42 16.3 Options 1 ........................42 16.4 Options 2 ........................43 16.5 Service Scan/Tuning Setup ................... 44 16.6 External Source Settings ....................44 16.7 Picture Mode ......................... 44 16.8 Reset TV-Set ......................... 45 SOFTWARE UPDATE DESCRIPTION................

  • Page 5: Introduction

    1 INTRODUCTION 17MB12 Main Board is a single board IDTV project, consists of Micronas and NEC concept. VCT_Pro and Emma2LL are used as controller for TV and IDTV side respectively. VCT_Pro 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.

  • Page 6: Pinning

    •  H igh level digital IF outputs •  R F-Modulator input for loop through to TV output (optional) •  W ide band AGC •  I ndoor Antenna power feed through (optional) 2.3 Pinning: 3 AUDIO AMPLIFIER STAGE WITH TDA8932 3.1 General Description The TDA8932 device is the high-power version that delivers an output power of 2 x 10 WRMS to 2 x 25 WRMS in a Single Ended (SE) configuration or 10 WRMS to 50 WRMS...

  • Page 7: Applications

    3.3 Applications • Flat-TV application • Flat panel monitors • Multimedia systems • Wireless speakers • Micro systems 3.4 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.

  • Page 8: Microcontroller (Vctp)

    for audio amplifier, 1.8V and 3.3V stand by voltage and 8V, 12V, 5V and 3.3Vsupplies for other different parts of the chassis. 5 MICROCONTROLLER (VCTP) 5.1 General Features The VCT 7wxyP is dedicated to high-quality FPD and double-scan TV sets. Modular design and deep-submicron technology allow the economic integration of features in LCD/plasma TV and in all classes of double-scan CRT TV sets.

  • Page 9: Multistandard Sound Processor (Msp) Features

    • 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 •...

  • Page 10: Video Features

    -1 analog subwoofer output -1 analog stereo headphone output 5.3 Video Features 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.

  • Page 11: Osd & Teletext Features

    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 •...

  • Page 20: Drx 3961A

    6 DRX 3961A 6.1 General Desription The DSP-based Analog TV IF Demodulator DRX 396xA performs the entire multistandard Quasi Split Sound (QSS) TV IF processing, AGC, video demodulation, and generation of the sound IF (SIF), requiring only one SAW filter. The IC is designed for applications in TV sets, VCRs, PC cards, and TV tuners.

  • Page 21: Serial 64K I2C Eeprom M24C64Wbn6

    • Programmable IF frequency (38.9 MHz, 45.75 MHz, 32.9 MHz, 58.75 MHz, 36.125 MHz etc.) • Digital IF processing for the following standards: B/G, D/K, I, L/L’, and M/N • Standard specific digital post filtering • Standard specific digital video/audio splitting •...

  • Page 22: Absolute Maximum Ratings

    • RANDOM and SEQUENTIAL READ Modes • Self-Timed Programming Cycle • Automatic Address Incrementing • Enhanced ESD/Latch-Up Protection • More than 1 Million Erase/Write Cycles • More than 40-Year Data Retention 7.3 Absolute Maximum Ratings 7.4 Pinning 8 CLASS AB STEREO HEADPHONE DRIVER TDA7050 8.1 General Description The TDA7050T is a low voltage audio amplifier for small radios with headphones (such as watch, pen and pocket radios) in mono (bridge-tied load) or stereo applications.

  • Page 23: Pinning

    8.3 Pinning 9 SAW FILTER X6966M 9.1 Features: - IF filter for digital cable TV - Plastic package SIP5K 9.2 Pin configuration: 1 Input 2 Input - ground 3 Chip carrier - ground 4 Output 5 Output 9.3 Frequency response:...

  • Page 24: Mpeg Decoder Μpd61115

    10 MPEG DECODER µPD61115 10.1 DESCRIPTION The µPD61115 device is a member of the second generation of multimedia processors based on NEC’s Enhanced MultiMedia Architecture (EMMArchitecture). These devices provide nearly all the functionality required to realise a high performance and cost- effective digital set-top box or integrated digital TV.

  • Page 25: Features

    10.2 FEATURES • MPEG1 and MPEG2-TS/PS compliant • High performance MIPS32™ 4Kc™ main CPU core • High performance MIPS32™ 4Km™ sub-CPU core • Integrated DVB descrambling with family options for Irdeto and Multi2 • 36 PID filters, 32 section filters •...

  • Page 26: Applications

    2 AGC control signals available for RF and IF amplifier control Flexible clock reference options Re-use of 4 MHz tuner clock reference Pre-SAW sense input for optimal RF AGC setting and RF-level measurement Excellent digital reception performance: Superior digital and analog adjacent channel performance (> −40dB for QEF) Impulsive noise cruncher Multipath and dynamic echoes The input IF frequency ranging up to 44 MHz ensures upward compatibility for new...

  • Page 27: 74V1G08

    0 to 3.3V input voltage to cause clocks to vary by ±120ppm. This device uses an inexpensive external pullable crystal at 27 MHz to produce the same output frequency.The PI6CX100-27 is designed for Set-Top Box applications. 13 74V1G08 SINGLE 2-INPUT AND GATE •...

  • Page 28: Ic Descriptions And Internal Block Diagram

    The outputs can drive AC or DC-coupled single (150Ω) or dual(75Ω) loads. DC-coupling the outputs removes the need for output coupling capacitors. The input DC levels will be offset approximately +280mV at the output. Features • Five fourth-order 8MHz (SD) filters •...

  • Page 29: Features

    tantalum capacitor is required at the output to improve the transient response and stability. 15.1.2 Features • Available in 1.8V, 2.5V, 2.85V, 3.3V, 5V, and Adjustable Versions • Space Saving SOT-223 Package • Current Limiting and Thermal Protection • Output Current 800mA •...

  • Page 30: Features

    The output voltage is adjustable with the use of a resistor divider. Dropout is guaranteed at a maximum of 500 mV at maximum output current. It's low dropout voltage and fast transient response make it ideal for low voltage microprocessor applications. Internal current and thermal limiting provides protection against any overload condition that would create excessive junction temperature.

  • Page 31: General Description

    15.3 MP1593 15.3.1 General Description The MP1593 is a step-down regulator with an internal Power 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 stabilization.

  • Page 32: Absolute Maximum Ratings

    • Pre-Regulator for Linear Regulators • Flat Panel TVs • Set-Top Boxes • Cigarette Lighter Powered Devices • DVD/PVR Devices 15.3.4 Absolute Maximum Ratings 15.3.5 Electrical Characteristics 15.3.6 Pinning Pin1:BS High-Side Gate Drive Boost Input. BS supplies the drive for the high-side N-Channel MOSFET switch.

  • Page 33: Fdc642P

    Pin4:GND Ground. Pin5:FB Feedback Input. FB senses the output voltage to regulate that voltage. Drive FB with a resistive voltage divider from the output voltage. The feedback threshold is 1.222V. Pin6:COMP Compensation Node. COMP is used to compensate the regulation control loop. Connect a series RC network from COMP to GND to compensate the regulation control loop.

  • Page 34: Pinning

    15.4.4 Pinning 15.5 ANX9021 The ANX9021 is an advanced multimedia receiver compliant with High Definition Multimedia Interface (HDMI) Specification 1.1. HDMI is the first transport standard to unify digital video, audio, and control data over low cost cables. It connects digital television, flat panel displays and project systems digitally to multimedia sources: DVD players, high definition set top boxes, digital video tape recorders, and personal computers.

  • Page 35: General Description

    Digital™, DTS™ digital audio transmission using IEC 60958 and IEC61937 Configurable soft mute Integrated HDCP decryption engine and pre programmed keys Programmable power management with automatic shutdown for power conservation Supports automated link integrity checking 144 lead TQFP package supporting lead free and green requirements Pinout compatible with Silicon Image 15.6 24LC02...

  • Page 36: Pinning

    15.6.3 10.6.3 Pinning 15.7 µPA672T 15.7.1 General Description N-channel Mos-Fet array for switching.The µPA672T is a super-mini-mold device provided with two MOS FET elements. It achieves high-density mounting and saves mounting costs. 15.7.2 Features • Two MOS FET circuits in package the same size as SC-70 •...

  • Page 37: Pinning

    15.7.4 Pinning 15.8 M74HC4052 15.8.1 General Description The M74HC4052 is a dual four-channel analog MULTIPLEXER/DEMULTIPLEXER fabricated with silicon gate C2MOS technology and it is pin to pin compatible with the equivalent metal gate CMOS4000B series. It contains 8 bidirectional and digitally controlled analog switches.

  • Page 38: Pinning

    15.8.4 Pinning VEE supply pin is provided for analog input signals. It has an inhibit (INH) input terminal disable switches when high. operation digital multiplexer/demultiplexer, VEE is connected to GND. A and B control inputs select one channel out of four in each section. All inputs are equipped with protection circuits against static discharge and transient excess voltage.

  • Page 39: Features

    output while the MAX809 has an active−low RESET output. Both devices are available in SOT−23 and SC−70 packages. 15.9.2 Features • Precision VCC Monitor for 1.5 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V, and 5.0 V Supplies • Precision Monitoring Voltages from 1.2 V to 4.9 V Available in 100 mV Steps •...

  • Page 40: Pinning

    15.9.4 Pinning 15.10 24LC21 15.10.1 General Description The 24LC21 is a 1K bit electrically erasable programmable memory (EEPROM), organized by 8 bits.This device can operate in two modes: Transmit Only mode and I2C bidirectional mode. When powered, the device is in Transmit Only mode with EEPROM data clocked out from the rising edge of the signal applied on VCLK.

  • Page 41: Pinning

    15.10.4 Pinning 16 SERVICE MENU SETTINGS In order to reach service menu, • First Press “MENU” • Then press the remote control code, which is “4725” 16.1 Video Setup • Panel Select <........> CHI MEI 16/9 32 inch LG 16/9 26 inch SAMSUNG 16/9 32 inch •...

  • Page 42: Audiosetup

    Tuner PAL <..> Value between -8 to+7 Ext PAL <..> Value between -8 to+7 SECAM <..> Value between -8 to+7 NTSC <..> Value between -8 to+7 • AGC (dB) <..> Value between 0 to+8 16.2 AudioSetup • Equalizer <..> If “Yes” selected, “Equalizer” item is seen in “Sound” menu. •...

  • Page 43: Options 2

    If “Yes” selected, audio switch IC is active on hardware. • Power-Up Mode <..> StandBy If selected, TV opens in stand by mode. L.State If selected, TV opens in Last State mode. • TV Open Mode <..> Source 1st TV Last TV •...

  • Page 44: Service Scan/Tuning Setup

    • Autostore <..> If “Yes” selected, Channel is automatically stored. • Led Type <......> 1 Led 1 Colour 1 Led 2 Colours 2 Led 2 Colours • PC PIP <..> • PC Stand By <..> 16.5 Service Scan/Tuning Setup • Search for L/L’ <..> •...

  • Page 45: Reset Tv-Set

    SVHS HDMI YPbPr • Picture Mode <..> Dynamic Natural Cinema • Colour Temp <..> Cool Normal Warm • Contrast <..> Value between 0 to +63 • Brightness <..> Value between 0 to +63 • Sharpness <..> Value between 0 to +15 •...

  • Page 46: Analog Software Update Via Uart

    Step.6 After “42” is seen, Click “Erase Flash” Step.7 Select the bin. file from near the “Load Bin” Step.8 Click “Load Bin” and load the required bin. file. Step.9 Unpick the I C cable from Chasis Step.10 Power off and on again TV set to produce hard reset. Step.11 Initialize the NVM from “Reset TV-set”...

  • Page 48: Power Management

    18.2 Power Management 18.3 DRX (IF Demodulator) Block Diagram...

  • Page 49: Vct Pro

    18.4 VCT Pro 18.4.1 General Block Diagram...

  • Page 51: Msp Block Diagram

    18.4.2 MSP Block Diagram 18.4.3 Video Processor of VCT 7wxyP Block Diagram...
  • Page 53 IC101 shortcir. 100n SCLK_TUNER 5V_TUNER SHEET3 SCL_5V_IC antenna_control S107 AGC_DVB S101 SDATA_TUNER 74HCT4053 SDA_5V_IC D100 S102 1N4148 AGC_DVB FROM 100 to 150 VESTEL ELECTRONICS TV/DVB_SWITCH R110 17MB12-1 TUNER-DRX.1of13 5V_TUNER Date Author R111 Q100 SYNC_SW2 BC848B 17.04.2007 ISMAIL YILMAZLAR SADIK SEHIT...
  • Page 54 PC_HSYNC HP_OUT_L VCTP_AOUT2L FROM 200 to 400 TO SHT3 R209 C249 C252 L210 SYNC SW C269 VESTEL ELECTRONICS PC_VSYNC R210 R224 17MB12-1 PERIPHERAL.2of13 SC2_AUDIO_L_OUT HP_OUT_R DDC_SCL Date Author R292 L211 BC858B 100R PL201 Q209 13.01.2006 ISMAIL YILMAZLAR C264 SADIK SEHIT...
  • Page 55 DMPORPC_L_AUDIO TXOUT0- TXOUT0- IC400 FROM 400 3V3_STBY LM809 C498 SHEET 2 17 VREFAU VESTEL ELECTRONICS LVDSA_0P TXOUT0+ TXOUT0+ C437 C439 17MB12-1 TUNER-DRX.3of13 VSUP_8V_AU 18 VSUP8.OAU VSUP3.3LVDS3 VSUP_3V3_LVDS S422 S439 CPU_GO Date EXTERNAL AMP. 100n Author S423 19 GNDA1 LVDSA_1N TXOUT1-...
  • Page 56 PL602 13 TEST VDDP2 C612 AMPLIFIER_L R601 R615 14 IN2N HVP2 100R 470n C613 FROM 600 to 650 R616 AMPLIFIER_L_NEG 15 IN2P DREF VESTEL ELECTRONICS 470n 17MB12 AUDIO AMP. 4of13 Date Author 16 VSSD/HW2 VSSD/HW3 03.01.2006 ISMAIL YILMAZLAR RASIT GOKALAN...
  • Page 57 HDMI_R6 138 DVSS_15 HDMI0_D0N HDMI_R5 FROM 650 to 750 SN74CB3Q3305 E20SUP. 139 DVDD18_9 VESTEL ELECTRONICS AVDD33_5 DVDD18 AVDD33 IC553 HDMI_R4 S658 17MB12-1 HDMI. 5of13 140 VD4 AVSS_7 R687 HDMI1_CEC Date Author 141 VD3 HDMI0_CLKP HDMI_R3 CEC0 S667 17.04.2007 ISMAIL YILMAZLAR...
  • Page 58 FROM 750 to 850 15 IN2P DREF R803 R815 VCC_8V_AUDIO 100k 100k 600R_100MHZ_200mA 470n C2002 VESTEL ELECTRONICS AMPLIFIER_L_NEG C808 VCC_8V_AUDIO 17MB12-1 AUDIO&SW 6of13 SC1_AUDIO_R_IN L759 16 VSSD/HW2 VSSD/HW3 Date Author SADIK SEHIT SC_AUDIO_R_IN 17.04.2007 R804 R816 R821 ISMAIL YILMAZLAR VCC_8V_AUDIO...
  • Page 59 D853 100u IC001 30026025 C903 TP16 100n C901 L852 1N4148_SOD123 100n VCC_3V3 30032610 FROM 850 10U 3A S873 VESTEL ELECTRONICS 17MB12-1 POWER 8of13 TP10 PANEL_VCC Date Author Q854 SADIK SEHIT 17.04.2007 ISMAIL YILMAZLAR EMRAH AKKUS S874 R867 S868 IC852 3V3_STBY...
  • Page 60 C960 100p GRDYB C974 C962 PL951 C958 100p C967 FROM 950 L967 L968 VESTEL ELECTRONICS C961 C963 L951 L953 L957 17MB12-1 MPEG 9of13 C966 R986 1.5V 1.5V_D 3.3V 3.3V_D R973 R1070 Date 220R 3.3V Author SPDIF 100R SADIK SEHIT 100n 17.04.2007...
  • Page 61 C1142 3.3VA_DEMOD C1115 C1124 R1118 R1120 FERRITE AMCK MCLK AOUTR 560R IDTV_R RADD2 24 A1 RADD1 FROM 1000 to 1050 VESTEL ELECTRONICS FLASH ROM 17MB12-1 MPEG RAM 9of13 Date Author SADIK SEHIT 17.04.2007 AUDIO DAC ISMAIL YILMAZLAR ONUR KORHAN SAYIN...
  • Page 62 R1216 R1217 Q1200 SW_CNTRL VCC_8V_VIDEO BC848B RESET_CI R1215 Q1204 R1220 CI_POWER_CNTRL BC848B Q1205 CARD_RESET BC858B L1201 3.3V_D 3.3V_BUF FERRITE C1214 C1200 C1205 FROM 1200 CI_PWR VESTEL ELECTRONICS 17MB12-1 CI 12of13 Date Author SADIK SEHIT 17.04.2007 ISMAIL YILMAZLAR ONUR KORHAN SAYI...
  • Page 63 C142" R124" 1" C144" R443" IC301" F857" PL405" S107" Q108" PL401" F856" R433" C721" R121" R146" R438" S102" R450" S111" 17MB12-1.1" R437" R451" R110" 1" R421" 290607" C701" C418" IC650" C108" C419" C669" R126" R422" LF" IC100" S101" 4" S668"...
  • Page 64 PL852" PL950" C1001" C995" TP15" 5VSTBY" C1006" PL602" PL850" PL853" PROTECT" PL952" PL601" PL951" PL851" TP17" C1002" C1007" 3V3DIG" R1043" TP4" C1025" S961" L851" TP3" 2V5DIG" C1022" L956" C647" C646" C602" C897" PANELVCC" L966" S422" R890" C984" Q863" C1019" Q857" R515"...

Table of Contents