VESTEL IDTV MB120 Service Manual
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VESTEL IDTV MB120 Service Manual

VESTEL IDTV MB120 Service Manual

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MB120 IDTV
SERVICE MANUAL

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Summary of Contents for VESTEL IDTV MB120

  • Page 1 MB120 IDTV SERVICE MANUAL...

  • Page 2: Table Of Contents

    Table of Contents INTRODUCTION ................................2 TUNER ................................... 3 SI2151 Terrestrial and Cable TV Tuner: ........................3 M88TS2022 Satellite Tuner ............................5 AUDIO AMPLIFIER STAGES ............................6 MAIN AMPLIFIER (U8) (10W/12W options) ....................... 6 SUBWOOFER AMPLIFIER (U9) (12 W) ........................8 HEADPHONE AMPLIFIER (U59) ..........................

  • Page 3: Introduction

    14. TROUBLESHOOTING ..............................48 No Backlight Problem .............................. 48 CI Module Problem ..............................50 Staying in Stand-by Mode ............................52 IR Problem ................................54 Keypad Touchpad Problems ............................ 55 USB Problems ................................56 No Sound Problem ..............................57 Standby On/Off Problem ............................58 İ.

  • Page 4: Tuner

    2. TUNER A. SI2151 TERRESTRİAL AND CABLE TV TUNER: Description: The Si2151 is Silicon Labs' sixth-generation hybrid TV tuner supporting all worldwide terrestrial and cable TV standards. Requiring no external balun, SAW filters, wirewound inductors or LNAs, the Si2151 offers the lowest-cost BOM for a hybrid TV tuner.
  • Page 5 Table 1.1 Pin Functions...

  • Page 6: M88Ts2022 Satellite Tuner

    B. M88TS2022 SATELLİTE TUNER Features and General Description Pin Assigment...

  • Page 7: Audio Amplifier Stages

    Absolute Maximum Ratings and Recommended Operating Conditions 3. AUDIO AMPLIFIER STAGES A. MAIN AMPLIFIER (U8) (10W/12W OPTİONS) Description AD82587D is a digital audio amplifier capable of driving a pair of 8 ohm, 20W or a single 4 ohm, 40W speaker, both which operate with play music at a 24V supply without external heat-sink or fan requirement. Using I C digital control interface, the user can control AD82587D’s input format selection, DRC (dynamic range control), mute and volume control functions.
  • Page 8  Loudspeaker output power for Stereo@ 24V  10W x 2ch into 8_ @ 0.16% THD+N  15W x 2ch into 8_ @ 0.18% THD+N  20W x 2ch into 8_ @ 0.24% THD+N  Loudspeaker output power for Mono@ 24V ...

  • Page 9: Subwoofer Amplifier (U9) (12 W)

    Figure 3.3: Functional Block Diagram Table3.1: Absolute Maximum Ratings Table3.2: Recommended Operating Conditions B. SUBWOOFER AMPLIFIER (U9) (12 W) Description AD82586C is a digital audio amplifier capable of driving a pair of 8 ohm, 20W operating at 24V supply without external heat-sink or fan requirement with play music. AD82586C has 20 bands EQ function and can operate 20W stereo or 40W mono optionally.
  • Page 10 Features  16/18/20/24-bits input with I S, Left-alingment and Right-alingment data format  PSNR & DR (A-weighting) Loudspeaker: 99dB (PSNR), 104dB (DR) @24V  Multiple sampling frequencies (Fs) 32kHz / 44.1kHz / 48kHz and 64kHz / 88.2kHz / 96kHz and 128kHz / 176.4kHz / 192kHz ...

  • Page 11: Headphone Amplifier (U59)

    Figure 3.5: Functional Block Diagram Table 3.3: Absolute Maximum Ratings Table 3.4: Recommended Operating Conditions C. HEADPHONE AMPLIFIER (U59) Description The AD22657B is a 2-Vrms cap-less stereo line driver. The device is ideal for single supply electronics. Cap-less design can eliminate output dc-blocking capacitors for better low frequency response and save cost. The AD22657B is capable of delivering 2-Vrms output into a 10k ohm load with 3.3V supply.
  • Page 12  Typical SNR 107dB  Typical Vn 7uVrms  Typical THD+N < 0.02%  Maximum Output Voltage Swing into 2.5k Load  2Vrms at 3.3V Supply Voltage  Single-ended Input  External Gain Setting from 1V/V to 10V/V  Fast Start-up Time: 0.5ms ...

  • Page 13: Subwoofer Preamplifier (U30)

    D. SUBWOOFER PREAMPLIFIER (U30) AD22657B is used for subwoofer out, as well. E. SCART AUDIO AMPLIFIER (U31) AD22657B is used for scart audio amplifier, as well. 4. POWER STAGE Figure 4.1: Power socket and options. Power socket is used for taking voltages which are 12V, 5V and VDD_Audio. These voltages are produced in power board.

  • Page 14: Tps54528

    Figure 4.2: General illustration of voltage stages on main board. VDD_Audio goes directly to the audio side, through power socket other incoming voltages from power card are converted several voltages, shown in figure 8. List of the components are:  TPS54528 ...
  • Page 15 Features  D-CAP2 Mode Enables Fast Transient Response  Low Output ripple and Allows Ceramic Output Capacitor  Wide V Input Voltage Range: 4.5 V to 18 V  Output Voltage Range: 0.76 V to 6 V  Highly Efficient Integrated FETs Optimized for Lower Duty Cycle Applications- 65 mOhm (High Side) and 36 mOhm (Low Side) ...

  • Page 16: Tps54628

    Table 4.2: Pin functions. B. TPS54628 General Description The TPS54628 is an adaptive on-time D-CAP2 mode synchronous buck converter.The TPS54628 enables system designers to complete the suite of various end-equipment power bus regulators with a cost effective, low component count, low standby current solution. The main control loop for the TPS54628 uses the D-CAP2 mode control that provides a fast transient response with no external compensation components.
  • Page 17 Table 4.3: Recommended operating conditions Figure 4.4: Pin Description Table 4.4: Pin functions.

  • Page 18: Tps54821

    C. TPS54821 General Description The TPS54821 in thermally enhanced 3.5 mm x 3.5 mm QFN package is a full featured 17 V, 8 A synchronous step down converter which is optimized for small designs through high efficiency and integrating the high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and by selecting a high switching frequency, reducing the inductor's footprint.
  • Page 19 Table 4.5: Recommended operating conditions Figure 4.5: Pin Description...

  • Page 20: Fds4685

    Table 4.6: Pin functions. D. FDS4685 General Description This P-Channel MOSFET is a rugged gate version of Fairchild Semiconductor’s advanced PowerTrench process. It has been optimized for power management applications requiring a wide range of gate drive voltage ratings (4.5V – 20V). Features ...

  • Page 21: Ntgs3446

    Table 4.7: Absolute maximum ratings E. NTGS3446 Features  Ultra Low R DS(on)  Higher Efficiency Extending Battery Life  Logic Level Gate Drive  Diode Exhibits High Speed, Soft Recovery  Avalanche Energy Specified  IDSS Specified at Elevated Temperature ...

  • Page 22: Apl5910

    Table 4.8: Maximum ratings F. APL5910 General Description The APL5910 is a 1A ultra low dropout linear regulator. The IC needs two supply voltages, one is a control voltage (VCNTL) for the control circuitry, the other is a main supply voltage (VIN) for power conversion, to reduce power dissipation and provide extremely low dropout voltage.
  • Page 23  Internal Soft-Start  Current-Limit and ShortCurrent-Limit Protections  Thermal Shutdown with Hysteresis  Open-Drain VOUT Voltage Indicator (POK)  Low Shutdown Quiescent Current (< 30mA )  Shutdown/Enable Control Function  Simple SOP-8P Package with Exposed Pad  Lead Free and Green Devices Available (RoHS Compliant) Applications ...
  • Page 24 Table 4.10: Pin description. G. LM1117 General Description 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 25: Microcontroller (Mstar Msd95M0D)

    5. MICROCONTROLLER (MSTAR MSD95M0D) General Description...
  • Page 26 Features...
  • Page 31 Table 5.1: Recommended operating conditions. Table 5.2: Absolute Maximum Ratings...

  • Page 32: Video Back-End Processor (Mstar)

    6. VIDEO BACK-END PROCESSOR (MSTAR) MST7410FE General Description Table 6.1: Recommended operating conditions...
  • Page 33 Features...
  • Page 34 Block Diagram Figure 6.1: Block diagram...

  • Page 35: Gb Ddr3 Sdram

    7. 2GB DDR3 SDRAM HYNİX H5TQ2G63GFR Description H5TQ2G83GFR-xxC, H5TQ2G63GFR-xxC, H5TQ2G83GFR-xxI, H5TQ2G63GFR-xxI, H5TQ2G83GFRxxL, H5TQ2G63GFR-xxL, H5TQ2G83GFR-xxJ, H5TQ2G63GFR-xxJ are a 2, 147, 483, 648- bit CMOS Double Data Rate III (DDR3) Synchronous DRAM, ideally suited for the main memory applications which requires large memory density and high bandwidth. SK Hynix 2Gb DDR3 SDRAMs offer fully synchronous operations referenced to both rising and falling edges of the clock.

  • Page 36: Gb Ddr3L Sdram

    8. 4GB DDR3L SDRAM HYNİX H5TQ4G63GFR Description The H5TC4G83CFR-xxA(I,L,J),H5TQC4G63CFR-xxA(I,L,J) are a 4Gb low power Double Data Rate III (DDR3L) Synchronous DRAM, ideally suited for the main memory applications which requires large memory density, high bandwidth and low power operation at 1.35V. SK Hynix DDR3L SDRAM provides backward compatibility with the 1.5V DDR3 based environment without any changes.
  • Page 37 Table 8.1: Absolute Maximum DC Ratings Table 8.2: Recommended operating conditions.

  • Page 38: Gbit (4G X 8 Bit) Nand Flash Memory

    9. 32GBIT (4G X 8 BIT) NAND FLASH MEMORY MT29F4G08ABAEAWP Key Features Description Micron NAND Flash devices include an asynchronous data interface for high-performance I/O operations. These devices use a highly multiplexed 8-bit bus (I/Ox) to transfer commands, address, and data. There are five control signals used to implement the asynchronous data interface: CE#, CLE, ALE, WE#, and RE#.
  • Page 39 Figure 9.1:Functional block diagram Table 9.1: DC Characteristics and Operating Conditions (3.3V)

  • Page 40: M-Bit [16M X 1] Cmos Serial Flash Eeprom

    10. 16M-BIT [16M X 1] CMOS SERIAL FLASH EEPROM A. MX25L1606E SPI FLASH Features General  Single Power Supply Operation  2.7 to 3.6 volt for read, erase, and program operations  Serial Peripheral Interface compatible -- Mode 0 and Mode 3 ...
  • Page 41  Status Register Feature  Electronic Identification  JEDEC 1-byte manufacturer ID and 2-byte device ID  RES command for 1-byte Device ID  REMS commands for 1-byte manufacturer ID and 1-byte device ID Hardware Features  PACKAGE  16-pin SOP (300mil), MX25L1606E only ...

  • Page 42: M25Q32Fv Spi Flash

    Table 10.1: Pin description. B. M25Q32FV SPI FLASH Key Features  New Family of SpiFlash Memories W25Q32FV: 32M-bit/ 4M-byte Standard SPI: CLK, /CS, DI, DO, /WP, /Hold Dual SPI:CLK, /CS, IO , IO , /WP, /Hold Quad SPI: CLK, /CS, IO , IO , IO , IO...
  • Page 43 3x256-Bytes Security Registers with OTP locks Volatile & Non-volatile Status Register Bits  Space Efficient Packaging 8-pin SOIC 208-mil / VSOP 208-mil 8-pad WSON 6x5-mm / 8x6-mm 16-pin SOIC 300-mil (additional / RESET pin) 8-pin PDIP 300-mil 24-ball TFBGA 8x6-mm (6x4/5x5 ball array) Contact Winbond for KGB and other options General Description This W25Q32FV (32M-bit) Serial Flash memory provides a storage solution for systems with limited space,...

  • Page 44: Demodulator Stage

    Table 10.2: Pin description. 11. DEMODULATOR STAGE A. MSB1246 DVB-T2 Features...
  • Page 45 General Description The MSB1246 is a single chip demodulator supporting DVB-T2, DVB-T, DVB-C, DVB-S2 and DVB-S standards. The device integrates a house keeping microcontroller that takes care of all real time and algorithmic tasks simplifying the host control interface. For DVB-T2/T/C, the MSB1246 front end can accept tuners that provide IF or low IF output. For DVB- S2/S, the MSB1246 front end can accept tuners that provide zero-IF output.
  • Page 46 Block Diagram Pinning...

  • Page 47: Lnb Supply And Control Ic

    Absolute Maximum Ratings and Recommended Operating Conditions 12. LNB SUPPLY AND CONTROL IC TPS65233 General Description Designed for analog and digital satellite receivers, the TPS65233 is a monolithic voltage regulator with I2C interface, specifically to provide the 13-V/18-V power supply and the 22-kHz tone signaling to the LNB downconverter in the antenna dish or to the multi-switch box.

  • Page 48: Software Update

    Features Pinouts 13. SOFTWARE UPDATE MAIN SW UPDATE In MB120 project, please follow software update procedure: 1. mb120_en.bin, RomBoot.bin, PM51.bin and usb_auto_update_G6F.txt documents should be copied directly inside of a flash memory (not in a folder). 2. Insert flash memory to the TV when TV is powered off. 3.

  • Page 49: Troubleshooting

    14. TROUBLESHOOTING A. NO BACKLİGHT PROBLEM Problem: If TV is working, led is normal and there is no picture and backlight on the panel. Possible couses: Backlight pin, dimming pin, backlight supply, stby on/off pin BACKLIGHT_ON/OFF pin should be high when the backlight is ON. R89 must be low when the backlight is OFF.
  • Page 50 Backlight power supply should be in panel specs. Please check Q44, shown below; also it can be checked TP175. STBY_ON/OFF_NOT should be low for tv on condition, please check Q23’s collector.

  • Page 51: Ci Module Problem

    B. 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 should be 5V when CI module inserted. If it is not 5V please check CI_PWR_CTRL, this pin should be low.

  • Page 53: Staying In Stand-By Mode

    C. STAYİNG İN STAND-BY MODE Problem: Staying in stand-by mode, 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 55: Ir Problem

    D. IR PROBLEM Problem: LED or IR not working Check LED card supply on MB120 chasis.

  • Page 56: Keypad Touchpad Problems

    E. KEYPAD TOUCHPAD PROBLEMS Problem: Keypad or Touchpad is not working Check keypad supply on MB120.

  • Page 57: Usb Problems

    F. USB PROBLEMS Problem: USB is not working or no USB Detection. Check USB Supply, It should be nearly 5V. Also USB Enable should be logic high. For USB 3.0 ports: For Side USB 2.0 port:...

  • Page 58: No Sound Problem

    For Back USB 2.0 port: G. NO SOUND PROBLEM Problem: No audio at main TV speaker outputs. Check supply voltages of 24V_VCC, VDD_AUDIO_MAIN and 3.3V_AMP with a voltage-meter. There may be a problem in headphone connector or headphone detect circuit (when headphone is connected, speakers are automatically muted).

  • Page 59: Standby On/Off Problem

    H. STANDBY ON/OFF PROBLEM Problem: Device can not boot, TV hangs in standby mode. There may be a problem about power supply. Check main supplies with a voltage-meter. Also there may be a problem about SW. Try to update TV with latest SW. Additionally it is good to check SW printouts via Teraterm.

  • Page 60: General Block Diagram

    14. GENERAL BLOCK DIAGRAM 2x20W 5V_VCC 5V_VCC 5V_VCC TPS2553 TPS2553 TPS2553 (256Mx16bit) Bathroom Subwoofer USB Power USB Power USB Power (1866 MT/s) Amp. Supply Switch Supply Switch Supply Switch ESMT (USB1) (USB2) (USB3) AD82586C SC AUDIO_OUT 1V5_VCC 1V5_VCC 1V5_VCC 1V5_VCC Audio Amp ESMT AD82587D Audio Amp...
  • Page 61 R353 BC848B R258 R352 12V_VCC 12V_VCC CORE_RESET CORE_RESET S122 S116 EN_MFC_CORE EN_G6F_CORE Vout=0.6x(1+(R1/R2)) Vout=0.6x(1+(R1/R2)) Vout=0.95V R1=10k R2=17k1 VESTEL 17MB120-R2 PROJECT NAME : R1=10k R2=17k1 Vout=0.95V SCH NAME : 01_POWER_1 T. SHT: AKIN ZOHRE DRAWN BY : 11-09-2015_18:25 A X M...
  • Page 62 2N7002 47k2 C437 R801 10k9 1,15 V CORE_VID1 C443 29k5 1,12 V 2N7002 CPU_VID0 2N7002 C346 24k2 CPU_VID1 1,19 V VESTEL 17MB120-R2 PROJECT NAME : SCH NAME : 02_POWER_2 T. SHT: AKIN ZOHRE DRAWN BY : 05-09-2015_12:33 A X M...
  • Page 63 100n 100n 100n 100n 100n 100n AB_RESETN CD_RESETN B_CKE D_CKE CD_AVDD C2295 C2294 C2293 C2296 C2297 C2298 VESTEL 17MB120-R2 100n 100n 100n 100n 100n 100n PROJECT NAME : B_CK AB_CK D_CK CD_CK B_CKN S326 SCH NAME : 03_G6F_DDR3 T. SHT:...
  • Page 64 C339 C338 C337 C336 C335 C334 C331 C330 100n 100n 100n 100n 100n 100n 100n 100n 100n 100n 100n 100n VESTEL 120p-r2 PROJECT NAME : SCH NAME : 04_HDMI_MHL T. SHT: NAMIK GOKCEDAGLI DRAWN BY : 09-09-2015_11:38 A X M...
  • Page 65 SPI_DI NF_AD2 1V8_VCC TP218 R486 220R R627 NF_AD3 TP223 R633 NF_AD4 MBOOT SPI FLASH R632 NF_AD5 VESTEL 17MB120-R2 PROJECT NAME : R631 NF_AD6 R634 SCH NAME : 05_CI_ETH_NAND_EMMC T. SHT: NF_AD7 NAMIK GOKCEDAGLI DRAWN BY : 05-09-2015_12:33 A X M...
  • Page 66 560R 3V3_WOWL 510R SC_AUD_R_OUT TPS2553-1 R831 220R S451 SCART_AUD_L_IN WIFI/BT_ENABLE TP31 FAULT 560R C513 C778 VESTEL 17MB120-R2 3V3_VCC PROJECT NAME : 180p SCART_AUD_R_IN R850 WOWL_EN 1 RED SCH NAME : 06_AV_PERIPHERALS_USB T. SHT: S452 NAMIK GOKCEDAGLI DRAWN BY : 11-09-2015_11:36...
  • Page 67 GND192 GND93 GND193 GS24 GND94 GND194 GND95 GND195 GND96 GND196 GS23 GND97 GND197 GND98 GND198 GND99 GND199 GS22 GND100 GND200 VESTEL 120p-r2 PROJECT NAME : SCH NAME : 07_G6F_SUPPLY T. SHT: NAMIK GOKCEDAGLI DRAWN BY : 14-09-2015_10:01 A X M...
  • Page 68 R180 BACKLIGHT_DIM 100R R793 220p 100R 5V_STBY S100 BACKLIGHT_DIM_MFC DIMMING CDA4C16GTH BACKLIGHT_DIM BC848B C821 MEGA_DCR_IN C873 220p BC848B C822 VESTEL 120p-r2 220p PROJECT NAME : SCH NAME : 08_GPIOS_LED_IR T. SHT: NAMIK GOKCEDAGLI DRAWN BY : 09-09-2015_14:53 A X M...
  • Page 69 SI2151 RF_IN VDDH_0 3V3_VCC_TUNER2 3V3_VCC_TUNER1 220R C630 C563 ADDR GND_2 S467 C848 GPIO1 VDDL 3V3_VCC_RF 3V3_VCC_TUNER2 220R C629 C564 FEF_AGC_FREEZE_D2 VESTEL 120p-r2 PROJECT NAME : SCH NAME : 09_DVBT_T2_TUNER T. SHT: ONDER GENC DRAWN BY : 07-09-2015_15:03 A X M...
  • Page 70 F170 12V_VCC C994 C1012 C1013 100n REG_OUT_AGC_D2 R882 R875 100R S2_AGC_D2 R883 VESTEL 120p-r2 PROJECT NAME : Close SAT DEMOD Close SAT DEMOD Close To TS2022 SCH NAME : 10_SAT_TUNER T. SHT: ONDER GENC DRAWN BY : 07-09-2015_17:25 A X M...
  • Page 71 MSPI_CLK_D2 TS_D0_D1 TS4D0 TP71 3V3_VCC_RF MSPI_DI_D2 TP59 DEMOD 2 TS TP60 TP56 DEMOD 1 TS SECOND DEMOD OPTION MAIN DEMOD VESTEL 17MB120-R2 PROJECT NAME : SCH NAME : 11_T2_S2_DEMOD T. SHT: ONDER GENC DRAWN BY : 07-09-2015_17:25 A X M...
  • Page 72 C672 100n AOBCK BCLK VDDRA VDD_AUDIO_SW TP154 BC848B BC848B C745 R687 3V3_STBY R854 470p SUBWOOFER AUDIO AMP VESTEL 120p-r2 PROJECT NAME : SCH NAME : 12_AUDIO T. SHT: AKIN ZOHRE & ONDER GENC DRAWN BY : 07-09-2015_17:31 A X M...
  • Page 73 R202 R209 R201 1V_G6F_CORE 1V5_VCC 100R 100R R498 R490 R497 R491 100R 100R 1V5_DDR_STR 1V_G6F_CPU R208 R203 VESTEL 17MB120-R2 PROJECT NAME : SCH NAME : 13_PRE_AUDIO T. SHT: AKIN ZOHRE & ONDER GENC DRAWN BY : 08-09-2015_10:08 A X M...
  • Page 74 OP_PIN39 PANEL_VCC VBY_3P TP289 R618 VBY_4N TP290 VBY_4P TP291 S371 VBY_5N TP292 PAN_SDA VBY_5P TP293 VBY_6N TP294 VESTEL 17MB120-R2 VBY_6P TP295 PROJECT NAME : OP_PIN6 VBY_7N TP296 OP_PIN7 OP_PIN51 VBYONE 30070519 VBY_7P TP280 OP_PIN12 SCH NAME : 14_MFC_VBY1_LVDS T. SHT:...
  • Page 75 S269 S270 S268 S271 TP166 PAN_SCL PAN_SDA TOUCHPAD_SCL TOUCHPAD_SDA HOLD# TP171 SCLK MFC_SPI_SCK S272 S273 MFC_SPI_SDI MFC_MSCL MFC_MSDA TP170 VESTEL 17MB120-R2 TP169 PROJECT NAME : SCH NAME : 15_MFC_IO_INTERFACES T. SHT: ATAKAN SARIKOSE DRAWN BY : 05-09-2015_12:33 A X M...
  • Page 76 240R 240R Bottom Side MFC_A_DDR3_ZQ_B MFC_A_DDR3_ZQ_D Bottom Side MFC_AVDD_ALL_RX Close to Chip C706 C2422 C2410 100n 100n 100n VESTEL 17MB120-R2 PROJECT NAME : SCH NAME : 16_MFC_SUPPLY T. SHT: Bottom Side ATAKAN SARIKOSE DRAWN BY : 14-09-2015_10:01 A X M...
  • Page 77 GND_97 GND_197 AE16 GND_298 GND_398 GND_497 GND_98 GND_198 AE17 GND_299 GND_399 GND_498 GND_99 GND_199 AE18 GND_499 VESTEL 17MB120-R2 PROJECT NAME : SCH NAME : 17_SMART_AMP_MFC_GND_BLOCKS T. SHT: ATAKAN SARIKOSE & AKIN ZOHRE :) DRAWN BY : 05-09-2015_12:32 A X M...

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