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MB120 IDTV

SERVICE MANUAL

Summary of Contents for IDTV MB120

Page 1: ...MB120 IDTV SERVICE MANUAL...

Page 2: ...TPS54528 13 B TPS54628 15 C TPS54821 17 D FDS4685 19 E NTGS3446 20 F APL5910 21 G LM1117 23 5 MICROCONTROLLER MSTAR MSD95M0D 24 6 VIDEO BACK END PROCESSOR MSTAR 31 MST7410FE 31 7 2Gb DDR3 SDRAM 34 Hy...

Page 3: ...4K2K UHD Key features includes Combo Front End Demodulator A multi standart A V format decoder The MACEpro video processor Home theatre sound processor Internet and Variety of Connectivity Support Du...

Page 4: ...nating the need for external filtering For the best performance with next generation digital TV standards such as DVB T2 C2 the Si2151 delivers industry leading phase noise performance Features Worldw...

Page 5: ...4 Table 1 1 Pin Functions...

Page 6: ...5 B M88TS2022 SATELL TE TUNER Features and General Description Pin Assigment...

Page 7: ...RC dynamic range control mute and volume control functions AD82587D has many built in protection circuits to safeguard AD82587D from connection errors Features 16 18 20 24 bit input with I2 S Left ali...

Page 8: ...ounds processing including Volume control 24dB 103dB 0 125dB step Dynamic range control Power clipping Channel mixing User programmed noise gate with hysteresis window DC blocking high pass filter Ant...

Page 9: ...e advanced audio processing capabilities such as volume control 20 bands speaker EQ audio mixing 3D surround and DRC dynamic range control These functions are fully programmable via a simple I2 C cont...

Page 10: ...oudspeaker driver Loudspeaker output power at 24V 10W x 2CH into 8 ohm 0 17 THD N for stereo 20W x 2CH into 8 ohm 0 26 THD N for stereo Sound processing including 20 bands parametric speaker EQ Volume...

Page 11: ...response and save cost The AD22657B is capable of delivering 2 Vrms output into a 10k ohm load with 3 3V supply The gain settings can be set by users from 1V V to 10V V externally The AD22657B has und...

Page 12: ...Single ended Input External Gain Setting from 1V V to 10V V Fast Start up Time 0 5ms Integrated De Pop Control External Under Voltage Protection Thermal Protection Less External Components Required 8...

Page 13: ...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 bo...

Page 14: ...or the TPS54528 uses the D CAP2 mode control that provides a fast transient response with no external compensation components The adaptive on time control supports seamless transition between PWM mode...

Page 15: ...de High Efficiency less than 10 mikroAmper at shutdown High Initial Bandgap Reference Accuracy Adjustable Soft Start Pre Biased Soft Start 650 kHz Switching Frequency fSW Cycle By Cycle Over Current L...

Page 16: ...tra low ESR ceramic capacitors The device operates from 4 5 V to 18 V VIN input The output voltage can be programmed between 0 76 V and 7 V The device also features an adjustable soft start time The T...

Page 17: ...16 Table 4 3 Recommended operating conditions Figure 4 4 Pin Description Table 4 4 Pin functions...

Page 18: ...rent limit which prevents current runaway There is also a low side sinking current limit which turns off the low side MOSFET to prevent excessive reverse current Hiccup protection will be triggered if...

Page 19: ...18 Table 4 5 Recommended operating conditions Figure 4 5 Pin Description...

Page 20: ...PowerTrench process It has been optimized for power management applications requiring a wide range of gate drive voltage ratings 4 5V 20V Features 8 2 A 40 V RDS ON 0 027 VGS 10 V RDS ON 0 035 VGS 4 5...

Page 21: ...e Diode Exhibits High Speed Soft Recovery Avalanche Energy Specified IDSS Specified at Elevated Temperature Pb Free Package is Available Applications Power Management in portable and battery powered p...

Page 22: ...t protect the device against thermal and current over loads A POK indicates that the output voltage status with a delay time set internally It can control other converter for power sequence The APL591...

Page 23: ...OUT 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: ...a zener trimmed bandgap reference to assure output voltage accuracy to within 1 The LM1117 series is available in LLP TO 263 SOT 223 TO 220 and TO 252 D PAK packages A minimum of 10 F tantalum capacit...

Page 25: ...24 5 MICROCONTROLLER MSTAR MSD95M0D General Description...

Page 26: ...25 Features...

Page 27: ...26...

Page 28: ...27...

Page 29: ...28...

Page 30: ...29...

Page 31: ...30 Table 5 1 Recommended operating conditions Table 5 2 Absolute Maximum Ratings...

Page 32: ...31 6 VIDEO BACK END PROCESSOR MSTAR MST7410FE General Description Table 6 1 Recommended operating conditions...

Page 33: ...32 Features...

Page 34: ...33 Block Diagram Figure 6 1 Block diagram...

Page 35: ...quires 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 While all addresses and control inpu...

Page 36: ...provides backward compatibility with the 1 5V DDR3 based environment without any changes SK Hynix 4Gb DDR3L SDRAMs offer fully synchronous operations referenced to both rising and falling edges of th...

Page 37: ...36 Table 8 1 Absolute Maximum DC Ratings Table 8 2 Recommended operating conditions...

Page 38: ...ion and monitor device status R B This hardware interface creates a low pin count device with a standard pinout that remains the same from one density to another enabling future upgrades to higher den...

Page 39: ...38 Figure 9 1 Functional block diagram Table 9 1 DC Characteristics and Operating Conditions 3 3V...

Page 40: ...e 1 4ms typ and 5ms max page Byte program time 9us typical Fast erase time 60ms typ sector 0 7s typ block Low Power Consumption Low active read current 16Mb 25mA max at 86MHz 8Mb 12mA max at 86MHz Low...

Page 41: ...tput The device provides sequential read operation on whole chip After program erase command is issued auto program erase algorithms which program erase and verify the specified page or sector block l...

Page 42: ...d with 8 16 32 64 Byte Wrap As few as 8 clocks to address memory Quad Peripheral Interface QPI reduces instruction overhead Allows true XIP execute in place operation Outperforms X16 Parallel Flash Lo...

Page 43: ...4KB block erase or the entire chip chip erase The W25Q32FV has 1 024 erasable sectors and 64 erasable blocks respectively The small 4KB sectors allow for greater flexibility in applications that requi...

Page 44: ...43 Table 10 2 Pin description 11 DEMODULATOR STAGE A MSB1246 DVB T2 Features...

Page 45: ...ront end can accept tuners that provide zero IF output A high rejection channel filter has been included easing the channel filtering requirement of the tuner whilst still meeting the stringent requir...

Page 46: ...45 Block Diagram Pinning...

Page 47: ...unt low power dissipation together with simple design and I2C standard interfacing TPS65233 features high power efficiency The boost converter integrates a 120 m power MOSFET running at 500 kHz switch...

Page 48: ...in 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 While pushing the OK button in remo...

Page 49: ...acklight 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 If it is a problem please check Q10 and the panel cables Also it...

Page 50: ...49 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: ...tect 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 Please check mechanical position of CI module Is i...

Page 52: ...51...

Page 53: ...m 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 th...

Page 54: ...53...

Page 55: ...54 D IR PROBLEM Problem LED or IR not working Check LED card supply on MB120 chasis...

Page 56: ...55 E KEYPAD TOUCHPAD PROBLEMS Problem Keypad or Touchpad is not working Check keypad supply on MB120...

Page 57: ...56 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: ...r 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 speake...

Page 59: ...bout SW Try to update TV with latest SW Additionally it is good to check SW printouts via Teraterm These printouts may give a clue about the problem You can use mini scart for terraterm connection NO...

Page 60: ...V_VCC 1V_VCC 3V3_VCC XTAL 24 Mhz 2x20W LED 5V_STBY DDR3 RAM 3V3_STBY 3V3_STBY 1V5_VCC 1V5_VCC 3V3_VCC_TUNER 3V3_VCC 1V25_VCC POWER 3V3_STBY 1V8_EMMC 3V3_VCC 1V5_VCC 1V_G6F_CPU 1V_G6F_CORE SI2151 Silic...

Page 61: ...3V3_VCC 60R F49 2 1 150R R698 910R R699 1k R177 R526 4k7 C547 10V 10u 1V15_VCC_DEMOD 10V C358 100n TP146 U27 APL5910 1 2 3 4 5 6 7 8 GND FB VOUT NC VCNTL VIN EN POK S252 2 1 5V_VCC 5V_VCC R132 4k7 2 1...

Page 62: ...2 1 U43 RT6213BHGJ6F 4 5 6 3 2 1 GND LX VIN BOOT EN FB C716 16V 22u C426 16V 100n 5V_STBY 12V_VCC WOWL_EN G6F_CPU_FB 1k R800 CORE_VID1 CORE_VID0 R801 1k Q51 2N7002 Q52 2N7002 G6F_CORE_FB 2p C874 50V 1...

Page 63: ...7 L9 T7 J9 M2 N8 M3 J7 K7 K9 L2 J3 K3 L3 T2 L8 H9 H2 F1 E9 D2 C9 C1 A8 A1 R9 R1 N9 N1 K8 K2 G7 D9 B2 H1 M8 E3 F7 F2 F8 H3 H8 G2 H7 D7 C3 C8 C2 A7 A2 B8 A3 F3 G3 B7 C7 E7 D3 K1 G9 G1 F9 E8 E2 D8 D1 B9...

Page 64: ..._1P HDMIC_1N HDMIC_0P HDMIC_0N HDMI20C_DET R334 10k 10k R335 Q18 BC848B HDMIC_HPD 1k R49 HDMIC_5V HDMID_HPD HDMI20D_DET R436 33R R437 33R R245 100R 100R R246 R507 47k 47k R508 HDMID_SCL CN2 1 2 3 4 5...

Page 65: ...NF_AD1 CI_PWR TP216 10V 100n C370 C371 100n 10V 10V 10u C552 10V 100n C369 F67 60R 5V_VCC BSH103 Q35 12V_VCC CI_PWR_CTRL 3V3_VCC BC847B Q36 R156 4k7 R154 4k7 10k R407 CI_PWR 6V3 220u C572 CI_PWR CI_RE...

Page 66: ...RESET C750 27p 50V C752 27p 50V TP25 75R R593 10V 100n C96 TP26 VGA_VSNC R594 75R 100R R193 IR_IN 10k R279 R547 510R C751 27p 50V TP24 75R R592 TP21 TP22 VGA_HSNC VGA_VSNC VGA_HSNC D23 CDA4C16GTH 1 2...

Page 67: ...1 H20 H19 H18 H17 H15 H14 H13 H12 H11 H10 H9 H8 G28 G27 G26 G25 G24 G23 G21 G20 G19 G18 G17 G16 G15 G14 G13 G12 G11 F31 F30 F29 F28 F27 F26 F25 F24 F22 E32 E31 E30 D32 D28 D25 D21 D18 C32 C13 C2 B32 B...

Page 68: ...8 4k7 3V3_VCC RX_G6F SYS_SCL TOUCHPAD_SCL TOUCHPAD_SDA S74 S75 TX_G6F S77 S78 TP74 TP75 S91 BACKLIGHT_ON OFF TX_HOTEL RX_HOTEL AMP_MUTE CPU_VID1 CPU_VID0 33R R424 BACKLIGHT_DIM TP87 R37 1k S101 220p 5...

Page 69: ...15 14 13 24 23 22 21 20 19 RF_REF RF_IP GND_0 RF_IN ADDR GPIO1 XTAL_I XTAL_O VDDH_1 GND_3 VDDH_2 NC XOUT LIF_P LIF_N VDDH_0 GND_2 VDDL GND_1 AGC1 AGC2 SCL SDA GPIO2 S55 FEF_AGC_FREEZE_D1 DIGITAL1_IF_...

Page 70: ...2387 27p 50V 27p C2388 S2_TUN_3V3_2 S2_TUN_3V3_2 U61 M88TS2022 28 27 26 25 24 23 22 21 20 19 18 17 16 15 8 9 10 11 12 13 14 1 2 3 4 5 6 7 VDDA2 CK_OUT IP IN VDDA1 QN QP VDDA4 TEST1 TEST2 TEST3 VDDA3 X...

Page 71: ...1D0 R532 33R 8 7 6 5 4 3 2 1 R4 R1 R3 R2 TS_D0_D1 TS_VLD_D1 TS_SYNC_D1 TS_CLK_D1 10p C575 50V 10V C231 100n 220R F77 10k R311 R312 10k U38 MSB1240 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21...

Page 72: ...V 100n C511 AOLRCK AOSDATA0 R267 100R AMP_RST AOMCLK SW_A_OUT1A AOBCK TP153 1 50V 220n C599 50V 220n C600 C601 220n 50V TP154 1 CN13 2 1 SW_A_OUT1A F54 60R 60R F55 SW_A_OUT1B 60R F56 SW_A_OUT2A SW_A_O...

Page 73: ...2 1 1u C653 6V3 150p C818 50V R866 68k 50V 12p C669 50V 12p C670 C654 6V3 1u C535 10V 10u R201 100R 47k R490 1V5_VCC R202 100R 1V8_VCC BAW56 D13 R491 47k 100R R203 6k8 R735 6k8 R736 1V_MFC_CORE 3V3_VC...

Page 74: ...100R R440 OP_PIN21 PANEL_VCC 33k R778 R471 10k 3D_SYNC_I 10k R472 3D_EN S361 10k R473 10k R474 S362 PANEL_VCC OP_PIN12 S363 3D_SYNC_I S364 S365 3D_SYNC 10k R550 PAN_SDA S366 OP_PIN24 PANEL_VCC 33k R77...

Page 75: ...GPIO37 DIM6 GPIO38 DIM7 GPIO39 GPIO43 GPIO44 GPIO45 GPIO46 GPIO47 GPIO48 GPIO49 GPIO50 VX1_TX_HTPD VX1_TX_LOCK HDMI_RX1_SCL HDMI_RX1_SDA HDMI_RX1_HPD GPIO23 HDMI_T_CEC HDMI_T_HPD GPIO4 GPIO5 GPIO6 GP...

Page 76: ...0 AVDD_DDR_VBP_B_1 AVDD_DDR_VBP_B_2 AVDD_DDR_VBP_B_3 AVDD_DDR_VBN_B_0 AVDD_DDR_VBN_B_1 AVDD_DDR_VBN_B_2 AVDD_DDR_VBN_B_3 DRAM_VDD_A_0 DRAM_VDD_A_1 A_DDR3_VREF_A A_DDR3_ZQ_A A_DDR3_ZQ_B DRAM_VDD_B_0 DR...

Page 77: ...04 GND_505 GND_506 GND_507 GND_508 GND_509 GND_510 GND_511 GND_512 GND_513 GND_514 GND_515 GND_516 GND_517 GND_518 GND_519 GND_520 GND_521 GND_522 GND_523 GND_524 GND_525 GND_526 GND_527 GND_528 GND_5...

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