VESTEL MB82S Service Manual
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VESTEL MB82S Service Manual

VESTEL MB82S Service Manual

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Summary of Contents for VESTEL MB82S

  • Page 2: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION ........................3     1.1. General Block Diagram ....................4     1.2. MB82S Placement of Blocks ..................5     TUNER(MXL601) ........................6     AUDIO AMPLIFIER STAGE ....................7     TAS5721 (optional) ........................7  ...

  • Page 3: Introduction

    11.2. Audio Settings ....................... 40     11.3. Options .......................... 41     11.4. Tuning Settings ......................43     11.5. Source Settings......................44     11.6. Diagnostic ........................45     11.7. USB Operations ......................45     SOFTWARE UPDATE ......................46  ...

  • Page 4: General Block Diagram

    1.1. General Block Diagram...

  • Page 5: Mb82S Placement Of Blocks

    1.2. MB82S Placement of Blocks...

  • Page 6: Tuner(Mxl601)

    1. TUNER(MXL601) MxL601 is a highly integrated low-power silicon tuner IC targeting all global analog and digital cable standards as well as digital terrestrial reception standards. Broadband input filtering and channel filtering have been completely integrated on-chip. This integration enables a very compact design requiring a small footprint, low bill-of-materials cost, and low power consumption.

  • Page 7: Audio Amplifier Stage

    2. AUDIO AMPLIFIER STAGE TAS5721 (optional) 2.1. General Description The TAS5721 is a 15-W stereo or 2x10 W + 1x15 W2.1 device, efficient, digital audio-power amplifier fordriving stereo bridge-tied speakers. One serial datainput allows processing of up to two discrete audiochannels and seamless integration to most digitalaudio processors and MPEG decoders.

  • Page 8: Absolute Ratings

    2.3. Absolute Ratings 2.3.1 ELECTRICAL CHARACTERISTICS...

  • Page 10: Operating Specifications

    2.3.2 OPERATING SPECIFICATIONS...

  • Page 11: Pinning

    2.4. Pinning...

  • Page 14: Ts4962M (Optional 2,5W)

    TS4962M (optional 2,5W)

  • Page 15: Power Stage

    The DC voltages required at various parts of the chassis and panel are provided by a main power supply unit. MB82S chassis can operate with PW05, IPS60, IPS70, IPS16, IPS17, IPS19, PW25, PW26, PW82-3, PW03, PW04, PW06, PW07 as main power supply and also with 12V adaptor.

  • Page 17: Power Management

    3.1. Power Management 12V_ VC MOSFET 12V_VCC ADAPTER STP1 1V2_MT5820 TPS54329E STP2 5V_STBY TPS54528 3V_STBY BC848B COMMON MOSFET 5V_VCC TLV62065 3.3V_VCC COMMON LD03 1.2V_AVCC APL5910 TLV62065 1.5V_VCC COMMON LD01 3.3V_AVCC LM117...

  • Page 18: Microcontroller - Mediatek

    4. MICROCONTROLLER – MediaTek 4.1. Description MT5820 (Main IC) (U1) The MediaTek MT5820 family consists of a backend decoder and a TV controller and offers high integration for advanced applications. It combines a transport de-multiplexer, a high definition video decoder, an audio decoder, a dual-link LVDS transmitter, a mini-LVDS transmitter, an EPI transmitter and an NTSC/PAL/SECAM TV decoder with a 3D comb filter (NTSC/PAL).
  • Page 19 General Features: Host CPU ARM11 single core 700MHz Floating Point Unit 16K I-Cache and 16K D-Cache for ARM11 core 128K L2 Cache Boot ROM Boot from serial flash, NAND flash Supports security boot JTAG ICE interface Watch Dog timers Transport Demultiplexer New generation 2 demux design for transport stream (TS) process Supports 1 serial TS input Supports DVB-T/T2, DVB-C, DVB-S/S2, ARIB and DTMB TS input data rate and format...
  • Page 20 H.264 (MPEG4.10 / AVC) HD Decoder (option) MP@L4.0, HP@L4.0, constrained BP@L3 video standard Full-HD 30P dual decoder VC-1 (SMPTE421M) Decoder (option) MP@HL, AP@L3 WMV9 decoder MP@HL Full-HD 30P dual decoder DivX (XviD) Decoder (option) DIVX3 / DIVX4 / DIVX5 / DIVX6 / DIVX HD Full-HD 30P dual decoder AVS Decoder (option) Jizhun profile @Level 6.2 (supports 4:2:0 format)
  • Page 21 Video Plane Supports video freeze and over scan Flesh tone management Gamma correction Color Transient Improvement (CTI) 2D Peaking Saturation/hue adjustment Brightness and contrast adjustment Black and White level extender Adaptive Luma management Automatic detect video, film and mixed-mode source 3:2/2:2 pull down source detection Supports FHD motion-adaptive de-interlace Supports excellent low angle image processing...
  • Page 22 6 port, 8/10-bit EPI CVBS In On-chip 54 MHz 10-bit video ADC Supports PAL (B,G,D,H,M,N,I,Nc), NTSC, NTSC-4.43, SECAM NTSC/PAL supports 3D/2D comb filter Built-in motion-adaptive 3D Noise Reduction VBI data slicer for CC/TT decoding Supports 1 S-Video Supports 2-channel CVBS Supports SCART connector VGA In Supports VGA input up to UXGA 162 MHz...
  • Page 23 Supports 512Mb or 1Gb or 2Gb DDR2 and DDR3 DRAM device Supports DDR2-1066/DDR3-1333/DDR3-1600 device Audio DSP Supports AC-3 (Dolby Digital) decoding and E-AC3 (Dolby Digital Plus) decoding (option) MPEG-1 layer I/II decoding Supports WMA / HE-AAC (option) Support Dolby DDCO, and MS10 (option) Dolby Prologic II (option) Audio output: 5.1ch + 2ch (down mix) + 2ch(bypass) Pink noise and white noise generator...

  • Page 24: Mediatek Block Diagram

    Supports two serial flash or one serial and one NAND flash Supports 4-input low-speed ADC Supports boundary scan (JTAG) IC Outline LQFP Package 256 pins with E-pad 3.3V/1.2V and 1.8V for DDR2 or 1.5V for DDR3 4.2. MediaTek Block Diagram...

  • Page 25: Crystal Specification

    4.3. Crystal Specification 5. USB INTERFACE Main Concept IC has integrated 2 USB 2.0 interface. One of them is used for ethernet function, the other one is used for USB connectivity for last user. Last user can play video, picture and audio files. Also digital channels can be record to externall storage device by this interface.

  • Page 26: Ddr3 Sdram 1Gb G-Die

    6. DDR3 SDRAM 1Gb G-die 6.1 Description: The 1Gb DDR3 SDRAM G-die is organized as a 8Mbit x 16 I/Os x 8banks device. This synchronous device achieves high speed double-data-rate transfer rates of up to 2133Mb/sec/pin(DDR3-2133)for general applications. The chip is designed to comply with the following key DDR3 SDRAM features such as posted CAS, Programmable CWL, Internal (Self) Calibration, On Die Termination using ODT pin and Asynchronous Reset .
  • Page 27 x16 Package Pinout (Top view) : 96ball FBGA Package...

  • Page 28: Scaler And Lvds Sockets

    7. SCALER AND LVDS SOCKETS 7.1. LVDS sockets Block Diagram...

  • Page 29: Panel Supply Switch Circuit

    7.2. Panel Supply Switch Circuit This switch is used to open and close panel supply of TCON. It is controlled by port of main ucontroller. Also with this circit panel sequency could be adjusted correctly. 3 panel supplys are connected to this circuit. All of them are optional according to panels. 8.

  • Page 30: Features

    8.1.2 Features 8.1.3 Block Diagram...

  • Page 31: Pinning

    8.1.4 Pinning...

  • Page 32: En25Qh16 16 Megabit

    8.2 EN25QH16 16 Megabit Serial Flash Memory with 4Kbyte Uniform Sector 8.2.1 General Description The EN25QH16 is a 16 Megabit (2,048 K-byte) Serial Flash memory, with enhanced write protection mechanisms. The EN25QH16 supports the standard Serial Peripheral Interface (SPI), and a high performance Dual/Quad output as well as Dual/Quad I/O using SPI pins: Serial Clock, Chip Select, Serial DQ0(DI), DQ1(DO), DQ2(WP#) and DQ3(HOLD#).

  • Page 33: Block Diagram

    8.2.3 Block Diagram 8.2.4 Pinning...

  • Page 35: I-Lm1117/Lm 800Ma Low-Dropout Linear Regulator

    9. I-LM1117/LM 800mA Low-Dropout Linear Regulator The LM1117 is a series of low dropout voltage regulators with a dropout of 1.2V at 800mA of load current. It has the same pin-out as National Semiconductor’s industry standard LM317. The LM1117 is available in an adjustable version, which can set the output voltage from 1.25V to 13.8V with only two external resistors.

  • Page 36: Connectors

    10. CONNECTORS 10.1. HDMI (CN707,CN708) 10.2. USB(CN37, CN38) Name Cable color Description VBUS White (gold*) Data − Data+ Green GND Black Ground (blue*)

  • Page 37: Vga (Cn711)

    10.3. VGA (CN711) 10.4. SCART (SC1)

  • Page 38: Service Menu Settings

    11. SERVICE MENU SETTINGS In order to reach service menu, First Press “MENU” Then press the remote control code two times, which is “4725”. In first screen following items can be seen (MB8x is same as MB6x service menu):...

  • Page 39: Video Settings

    11.1. Video Settings...

  • Page 40: Audio Settings

    11.2. Audio Settings...

  • Page 41: Options

    11.3. Options Options-1...
  • Page 42 Options-2...

  • Page 43: Tuning Settings

    11.4. Tuning Settings...

  • Page 44: Source Settings

    11.5. Source Settings...

  • Page 45: Diagnostic

    11.6. Diagnostic 11.7 USB Operations USB operations option can not be used directly. It can be used for updating panel tool, hw congiguration etc.

  • Page 46: Software Update

    12. SOFTWARE UPDATE In MB82 project there is only one software. From following steps software update procedure can be seen: 1. MB82.bin directly inside of a flash memory(not in a folder). 2. Put flash memory to the tv when tv is powered off. 3.
  • Page 47 Dimming pin should be high or square wave in open position. If it is low, please check S16 for Mstar side and panel or power cables, connectors. Backlight power supply should be in panel specs. Please check CN4 for MB82, related connectors for power supply cards.

  • Page 48: Ci Module Problem

    STBY_ON/OFF should be low for standby on condition, please check R2090. 13.2 CI Module Problem Problem: CI is not working when CI module inserted. Possible couses: Supply, suply control pin, detect pins, mechanical positions of pins CI supply shoul be 5V when CI module inserted. If it is not 5V please check CI_POWER_CTRL, this pin should be low.
  • Page 49 Please check mechanical positions of CI module. Detect ports should be low. If it is not low please check CI connector pins, CI module pins and 3V3_VCC on MB82.

  • Page 50: Led Blinking Problem

    13.3 Led Blinking Problem Problem: LED blinking, no other operation This problem indicates a short on Vcc voltages. Protect pin should be logic high while normal operation. When there is a short circuit protect pin will be logic low. If you detect logic low on protect pin, unplug the TV set and control voltage points with a multimeter to find the shorted voltage to ground.

  • Page 51: Ir Problem

    13.4 IR Problem Problem: LED or IR not working Check LED card supply on MB82 chasis.

  • Page 52: Keypad Touchpad Problems

    13.5 Keypad Touchpad Problems Problem: Keypad or Touchpad is not working Check keypad supply and KEYBOARD pin on MB82 13.6 USB Problems Problem: USB is not working or no USB Detection. Check USB Supply, It should be nearly 5V.

  • Page 53: No Sound Problem

    13.7 No Sound Problem Problem: No audio at main TV speaker outputs. Check supply voltages of VDD_AUDIO, 5V_VCC or 12V_VCC with a voltage-meter. There may be a problem in headphone connector or headphone detect circuit (when headphone is connected, speakers are automatically muted). Measure voltage at HP_DETECT pin, it should be 3.3v.

  • Page 54: No Sound Problem At Headphone

    13.8 No Sound Problem at Headphone Problem: No audio at headphone output. Check HP detect pin, when headphone is. Check 5V_VCC and 3V3_VCC with a voltage- meter. 13.9 Standby On/Off Problem Problem: Device cannot boot, TV hangs in standby mode. There may be a problem about power supply.

  • Page 55: No Signal Problem

    13.10 No Signal Problem Problem: No signal in TV mode. Check tuner supply voltage; 3V3_TUN. Check tuner options are correctly set in Service menu. Check AGC voltage at IF_AGC pin of tuner.
  • Page 56 C127 1 IO1 100n 100n C713 TP209 100n USB1_VCC TP107 AZ099-04S 100p ACTIVE ANTENNA USB1_VCC 1V2_AVCC 5V_VCC 330R C623 VESTEL 17mb82-1a CN28 PROJECT NAME : 5135_AV12 ILIM 680R R644 TPS2553-1 R2008 C582 C134 C133 R2010 USB1_DM SCH NAME : DEMOD T.
  • Page 57 100n R271 DEMOD_RST KEYBOARD_ONBOARD KEYBOARD TP47 R283 FSRC_WR 3V3_STBY TP204 TP203 SYS_SCL SYS_SDA BC848B BC848B C285 C166 100n VESTEL 17mb82-1a 30067087 PROJECT NAME : SCH NAME : MAIN T. SHT: <YOUR NAME HERE> DRAWN BY : 11-01-2013_10:07 A X M...
  • Page 58 W_ADAPTER 7A/32VDC TP21 1V2_AVCC R340 12V_INV BC848B BOARD VOLTAGES C805 7A/32VDC 220n TP73 STBY_ON/OFF BC848B MOSFET_CONTROL VESTEL 17mb82-1a PROJECT NAME : TP74 12V_STBY STBY_ON/OFF_NOT SCH NAME : POWER T. SHT: <YOUR NAME HERE> DRAWN BY : 15-01-2013_13:04 A X M...
  • Page 59 VDD_AUDIO/2 MAIN_R 150p IN2+ 150p C191 C533 C141 100n A_OUT2A 220n F191 100n C1154 A_OUT2B 3V3_AMP VESTEL 17mb82-1a PROJECT NAME : 100n SCH NAME : AUDIO AMP T. SHT: VDD_AUDIO <YOUR NAME HERE> DRAWN BY : 03-01-2013_10:23 A X M...
  • Page 60 VGA_HSNC 100R VGA_DDC_5V VGA_B 30071260 kullanilacak VGA_G INPUT jumper VGA_R SC_CVBS_OUT CVBS0_OUT CN17 C457 C458 TP69 TP70 TP71 VESTEL 17mb82s PROJECT NAME : VGA_G_COM SCH NAME : PERIPHERAL T. SHT: <YOUR NAME HERE> DRAWN BY : 02-01-2013_15:03 A X M...
  • Page 61 BC848B POOE_ DVD_IR Flash_WP Flash_WP R2132 R420 IR_IN 3V3_VCC C339 C145 100n DVD_Power N.C. 12V_VCC 4A/24VDC 5V_VCC VESTEL 17mb82-1a PROJECT NAME : DVD_IR_ON/OFF 4A/24VDC SCH NAME : MEMORY/HDMI T. SHT: <YOUR NAME HERE> DRAWN BY : 10-01-2013_17:24 A X M...
  • Page 62 5820_TX_A_4_N TX_1_4_N 5820_TX_B_4_N TX_2_4_N 5820_TX_A_4_N TX_1_4_N 5820_TX_B_4_N TX_2_4_N 5820_TX_A_4_P TX_1_4_P 5820_TX_B_4_P TX_2_4_P 5820_TX_A_4_P TX_1_4_P 5820_TX_B_4_P TX_2_4_P VESTEL 17mb82-1a PROJECT NAME : R535 R534 S235 S232 TX_1_4_N TX_2_4_N S234 S233 TX_1_4_P TX_2_4_P 10_BIT PANEL SCH NAME : LVDS CON T. SHT: <YOUR NAME HERE>...
  • Page 63 C1188 C260 CI_INT 5820_IF_N ANALOG_IF_P 100R 5820_IF_N ONLY ANALOG C1189 C316 C317 CLOSE TO DEMOD IF FILTERS 3V3_AVCC 3V3_TUNER VESTEL 17mb82-1a PROJECT NAME : SCH NAME : TUNER T. SHT: <YOUR NAME HERE> DRAWN BY : 02-01-2013_16:22 A X M...
  • Page 64 S2DEMOD_RESET S2_TUN_3V3 S2_TUN_3V3 R2165 R2163 S2_AGC F196 R2156 3V3_VCC 3V3_SAT_DEMOD S2_SCL R2155 R2150 C1265 LNB_OUT S2_SDA C1260 F197 3V3_VCC S2_TUN_3V3 C1266 VESTEL PROJECT NAME : SCH NAME : T. SHT: <YOUR NAME HERE> DRAWN BY : 11-01-2013_11:12 A X M...

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