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VESTEL MB130 IDTV, Service Manual

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VESTEL MB130 IDTV Service Manual Download Page 41

40 
 

 

 

Dimming pin should be high or square wave in open position. If it is low, please check S122 for Mstar side. 

It also can be checked at TP106. Please also check panel or power cables and connectors. 

 

Backlight power supply should be in panel specs. Please check Q124, shown below; also it can be checked 

TP112. 
 

Summary of Contents for MB130 IDTV

Page 1: ...MB130 IDTV SERVICE MANUAL...

Page 2: ...MICROCONTROLLER 25 A MSTAR G10 MSD95PMVW4 U114 25 7 2GB DDR3 SDRAM 33 A Hynix H5TQ2G63GFR TEC U113 U110 33 8 2GBIT 4GBIT CONNECTED OPTION 256M X 8 BIT NAND FLASH MEMORY 34 A MT29F2G08ABAEAWP U105 34...

Page 3: ...2 F USB Problems 44 G No Sound Problem 45 H Standby On Off Problem 46 No SIgnal Problem 46 14 SERVICE MENU SETTINGS 48...

Page 4: ...leted digital home network solution Dual stream decoder for 3D contents M lti purpose CPU for OS and multimedia Peripheral and power management Embedded DRAM for connected option Supported peripherals...

Page 5: ...WM BACKLIGHT_DIM 3D_SYNC_OUT KEYBOARD SPI TOUCHPAD UART AMP_RST HP_DETECT HP_AMP_MUTE PC_SCL SDA PCM_PWR_CTRL 3D_ENABLE STBY_ON OFF RX TX_HOTEL AUX_RESET TUN_RESET FLASH_WPN1 HDMI DET PROTECT USB ENAB...

Page 6: ...EMENT OF BLOCKS RAM FLAS H CI SPI MAIN IC HDMI Connectors HP Tuner S PDIF RJ45 VGA LED CON Keyb oard CON SPEAK CON Audio Amp SCART SAV USB Power Con Internal Wifi BT Connector 3 WAY SW L V D S C O n S...

Page 7: ...ed 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 Worldwide hybrid TV...

Page 8: ...7...

Page 9: ...PLL with on chip inductors varactors and loop filter Integrated RF AGC for optimal performance Integrated baseband DC offset cancellation removes external loop filters Excellent immunity to strong adj...

Page 10: ...9 Block Diagram 4 AUDIO AMPLIFIER STAGES Figure The block diagram of the audio part...

Page 11: ...z 176 4kHz 192kHz System clock 64x 128x 256x 384x 512x 768x 1024x Fs 256x 1024x Fs for 32kHz 44 1kHz 48kHz 128x 512x Fs for 64kHz 88 2kHz 96kHz 64x 256x Fs for 128kHz 176 4kHz 192kHz Supply voltage 3...

Page 12: ...11 Figure 3 2 Pin description Figure 3 3 Functional Block Diagram Table3 1 Absolute Maximum Ratings...

Page 13: ...10V V externally The AD22657B has under voltage protection to prevent POP noise Build in shutdown control and de pop control sequence also help AD22657B to be a pop less device The AD22657B is availa...

Page 14: ...Protection Less External Components Required 8kV IEC ESD Protection at line outputs Figure Pin description Table Pin functions Table Recommended operating conditions C SCART AUDIO AMPLIFIER U119 AD226...

Page 15: ..._VCC 12V_STBY and 5V_STBY These voltages are produced in power card Also socket is used for giving dimming backlight and standby signals with power card Power socket pinning is shown in above figure 2...

Page 16: ...Power Block Diagram List of the components SW 1 Q105 FDC642P SW 2 Q100 NTGS3446 DC DC 1 U101 RT7278G DC DC 2 U100 TPS563200 DC DC 3 U107 TPS563200 DC DC 4 U103 TPS54821 DC DC 5 U104 TPS563200 LDO 1 U1...

Page 17: ...el Gate Drive 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 batte...

Page 18: ...17 Figure 4 7 Pin description Table 4 8 Maximum ratings...

Page 19: ...18 C RT7278G Figure Pin Assignment...

Page 20: ...19...

Page 21: ...20 D TPS563200 Figure Pin Assignment...

Page 22: ...21 Electrical Characteristics...

Page 23: ...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 24: ...23 Table 4 5 Recommended operating conditions Figure 4 5 Pin Description...

Page 25: ...P2111 has built in auto discharge function The AP2111 features low power consumption The AP2111 is available in SOIC 8 PSOP 8 SOT 223 and SOT 23 5 packages Features Output Voltage Accuracy 1 5 Output...

Page 26: ...25 6 MICROCONTROLLER A MSTAR G10 MSD95PMVW4 U114 Description Features...

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Page 30: ...29...

Page 31: ...30...

Page 32: ...31...

Page 33: ...32 Table Recommended operating condition...

Page 34: ...lign DQ DQS and DQS transition with CK transition DM masks write data in at the both rising and falling edges of the data strobe All addresses and control inputs except data data strobes and data mask...

Page 35: ...eates a low pin count device with a standard pinout that remains the same from one density to another enabling future upgrades to higher densities with no board redesign A target is the unit of memory...

Page 36: ...l data move Operation status byte provides software method for detecting o Operation completion o Pass fail condition o Write protect status Ready Busy R B signal provides a hardware method of detecti...

Page 37: ...or sector block locations will be executed Program command is executed on byte basis or page basis or word basis for erase command is executes on sector or block or whole chip basis To provide user w...

Page 38: ...ly 32 Equal Blocks with 64K byte each o Any Block can be erased individually Program Capability o Byte base o Page base 256 bytes Latch up protected to 100mA from 1V to Vcc 1V Figure Pin configuration...

Page 39: ...38 A USB POWER SWITCH TPS2553 1 U109 U117 U122 11 CI INTERFACE 17MB130 Digital CI ve Smart Card Interface Block diagram...

Page 40: ...l power on and wait TV will power up itself 4 If First Time Installation screen comes it means software update procedure is successful 13 TROUBLESHOOTING A NO BACKLIGHT PROBLEM Problem If TV is workin...

Page 41: ...n position If it is low please check S122 for Mstar side It also can be checked at TP106 Please also check panel or power cables and connectors Backlight power supply should be in panel specs Please c...

Page 42: ...41 STBY_ON OFF should be low for TV on condition please check Q114 s collector...

Page 43: ...ects 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 44: ...tect 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 wit...

Page 45: ...t working Check keypad supply on MB130 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 USB Control is optiona...

Page 46: ...s Check supply voltages of 24V_VCC VDD_AUDIO and 3V3_AMP with a voltage meter There may be a problem in headphone connector or headphone detect circuit when headphone is connected speakers are automat...

Page 47: ...ntouts may give a clue about the problem You can use Scart 1 for Teraterm program connection NO SIGNAL PROBLEM Problem No signal or Low signal in DVB S S2 mode Check signal cables and LNB voltage if t...

Page 48: ...47...

Page 49: ...MENU buton then write 4725 by using remote controller You can see the service menu main screen below You can check SW releases by using this menu In addition you can make changes on video audio etc by...

Page 50: ...49 Audio Settings Options 1...

Page 51: ...50 Options 2 Options 3...

Page 52: ...51 Tuning Settings Source Settings...

Page 53: ...52 Diagnostic...

Page 54: ...100n S157 1 2 U114 MSD91QV01 AF5 AG5 AG4 AG3 AF4 AH3 AH2 AE4 AF3 AE2 AD3 AC1 AD2 AD1 AC3 AC2 IP_T IM_T SIFP SIFM IFAGC_T TGPIO0 TGPIO1 TGPIO2 TGPIO3 IP_S IM_S QP_S QM_S IFAGC_S GPIO15 DISEQC_OUT GPIO1...

Page 55: ...C_CVBS_IN C463 33p 50V 330p C470 C471 330p 50V F147 600R C454 100n 2 1 R439 100R 1 2 R424 100R 1 2 SC_AUD_R_IN SC_AUD_L_IN CDA4C16GTH D128 8 7 6 5 4 3 2 1 TP194 1 TP178 1 TP179 1 TP195 1 TP190 1 TP181...

Page 56: ...WOWL USB_WIFI_DP TP216 1 USB_WIFI_DN TP217 1 USB_BT_DN TP203 1 USB_BT_DP 3D_SYNC TP202 1 TP200 1 TP199 1 R296 33R CEC R372 10k Q130 BC848B 1 2 3 R366 1k 1 2 HDMI2_5V BC848B Q131 1 2 3 HDMI0_5V R369 1k...

Page 57: ...3BHGJ6F 1 2 3 6 5 4 FB EN BOOT VIN LX GND 10k R510 1 2 60R F161 6V3 22u C864 6V3 22u C865 C337 100n 16V C259 100n 16V 1V5_DRAM B_MCLKn AB_MA5 AB_MA4 AB_MA0 AB_MA3 AB_MA14 AB_MA8 AB_MA6 AB_MA11 AB_MA2...

Page 58: ...3 2 1 R4 R3 R2 R1 CN103 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 1...

Page 59: ...2 1 2 3 4 5 6 7 8 VCC HOLD SCLK SI GND WP SO CS 4k7 R322 1N4148 D102 TP151 S165 SPI_SCK TP162 D131 CDA4C16GTH 8 7 6 5 4 3 2 1 3V3_STBY 4k7 R320 1k F156 47k R100 TOUCHPAD_SDA C501 50V 27p 2 1 TOUCHPAD_...

Page 60: ...k R506 PAN_SCL R263 10k OP_PIN36 OP_PIN35 OP_PIN28 OP_PIN29 OP_PIN30 OP_PIN31 VBY_0P VBY_0N VBY_7N VBY_7P VBY_6N VBY_6P VBY_5N VBY_5P VBY_4N VBY_4P VBY_3N VBY_3P VBY_2N VBY_2P VBY_1N VBY_1P 4k7 R509 S...

Page 61: ...DD_AUDIO VDD_AUDIO VDD_AUDIO 24V_VCC VDD_AUDIO C513 10V 220u 3V3_VCC 1k F146 S114 AMP_EN 220n 50V C514 50V C512 220n L114 10u TP211 L115 10u HP_LEFT 6V3 C489 1u F150 1k C488 1u 6V3 AD22657B U120 1 2 3...

Page 62: ...2 GND153 GND154 16V C243 100n C233 16V 100n 100n 16V C275 C234 16V 100n C851 100n VDDP33 AVDD_LPLL VDDP33 AVDD_DMPLL AVDD_EAR33 AVDD_AU33 AVDD_USB AVDD33_LAN VDDP33 1V_VCC_CORE AVDD33_LAN DVDD_DDR C35...

Page 63: ...GJ6F U100 1 2 3 6 5 4 FB EN BOOT VIN LX GND C109 100n 16V 60R F100 12V_VCC R107 10k 1 2 4k7 R106 12V_STBY R132 33k 2 C108 10u 10V 16V C105 10u 16V C101 10u R101 37k4 R103 12k L101 10u 60R F108 33p C13...

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