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VESTEL MB120 DS, Service Manual

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VESTEL MB120 DS Service Manual Download Page 59

58 
 

3.

 

Select the corresponding COM port and click File to load the fw hex file. 

 

 

4.

 

Press “ Program MCU “ to enter ICP mode. Then restart the DS product. 

 

 

5.

 

 When you finish all of settings, press “ Program MCU “ again to program the firmware. 

6.

 

When you program the firmware successfully, EP Console would appear a message of OK . 

 

 

7.

 

Finally restart the DS product.  
 

If you see fail, please reset monitor and try program again. 

18.

 

TROUBLESHOOTING 

A.

 

NO BACKLIGHT PROBLEM 

 

Problem:

 If product is working, led is normal and there is no picture and backlight on the panel. 

 

Possible causes:

 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. If  it is a problem, please check Q10 and the panel cables. Also it can be tested in TP137 on main board 

Summary of Contents for MB120 DS

Page 1: ...MB120 DS SERVICE MANUAL...

Page 2: ...0 6 2Gb DDR3 SDRAM 32 Hynix H5TQ2G63GFR 32 7 4Gb DDR3L SDRAM 33 Hynix H5TQ4G63GFR 33 8 32GBIT 4G X 8 BIT NAND FLASH MEMORY 35 MT29F4G08ABAEAWP 35 9 16M BIT 16M x 1 CMOS SERIAL FLASH EEPROM 37 A MX25L1...

Page 3: ...ce AV CODEC and CPU This IC also supports 4K2K UHD Key features includes Combo Front End Demodulator A multi standart A V format decoder The MACEpro video processor Home theatre sound processor Intern...

Page 4: ...3 1 Dsub9 RS232 1 RJ45 10 100 Support Ethernet 1 RJ12 for service only Tuner ATV DVB T T2 C optional 4K2K 50 100Hz Vby1 FHD 50 100Hz LVDS interface 2 MICROCONTROLLER MSTAR MSD95M0D General Description...

Page 5: ...4 Features...

Page 6: ...5...

Page 7: ...6...

Page 8: ...7...

Page 9: ...8...

Page 10: ...9 Table 1 Recommended operating conditions Table 2 Absolute Maximum Ratings...

Page 11: ...10 3 VIDEO BACK END PROCESSOR MSTAR MST7410FE General Description Table 3 Recommended operating conditions...

Page 12: ...11 Features...

Page 13: ...12 Block Diagram Figure 1 Block diagram...

Page 14: ...and 128kHz 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...

Page 15: ...14 Figure 2 Pin description Figure 3 Functional Block Diagram Table 4 Absolute Maximum Ratings...

Page 16: ...on 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 available in a 10 pin MSOP package Features Operation Voltage 3...

Page 17: ...16 Figure 4 Pin description Table 6 Pin functions Table 7 Recommended operating conditions C SUBWOOFER PREAMPLIFIER U30 AD22657B is used for subwoofer out as well...

Page 18: ...and options Power socket is used for taking voltages which are 12V 5V and VDD_Audio These voltages are produced in power board Also socket is used for giving dimming backlight and standby signals with...

Page 19: ...ous end equipment power bus regulators with a cost effective low component count low standby current solution The main control loop for the TPS54528 uses the D CAP2 mode control that provides a fast t...

Page 20: ...nge 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 High Efficiency less than 10 mikroAmper at shutdown High Initial B...

Page 21: ...ra 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 TP...

Page 22: ...21 Table 10 Recommended operating conditions Figure 8 Pin Description Table 11 Pin functions...

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 12 Recommended operating conditions Figure 9 Pin Description...

Page 25: ...tra low ESR ceramic capacitors with no external compensation components TPS563200 operate in Advanced Eco mode which maintains high efficiency during light load operation The devices are available in...

Page 26: ...ations Digital TV Power Supply High Definition Blu ray Disc Players Networking Home Terminal Networking Home Terminal Table 14 Recommended operating conditions Figure 10 Pin Description Table 15 Pin f...

Page 27: ...een 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 V Fast switching speed High...

Page 28: ...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 products i e compu...

Page 29: ...ns of thermal shutdown and current limit 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...

Page 30: ...l 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...

Page 31: ...he AP2111 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 Out...

Page 32: ...31 Applications LCD Monitor Portable DVD Laptop computer Figure 14 Pin configuration Table 20 Recommended operating conditions Table 21 Pin description...

Page 33: ...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 34: ...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 35: ...34 Table 23 Absolute Maximum DC Ratings Table 24 Recommended operating conditions...

Page 36: ...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 37: ...36 Figure 15 Functional block diagram Table 25 DC Characteristics and Operating Conditions 3 3V...

Page 38: ...Vcc 1V Performance High Performance Fast access time 86MHz serial clock Serial clock of Dual Output mode 80MHz Fast program time 1 4ms typ and 5ms max page Byte program time 9us typical Fast erase tim...

Page 39: ...Serial access to the device is enabled by CS input When it is in Dual Output read mode the SI and SO pins become SIO0 and SIO1 pins for data output The device provides sequential read operation on who...

Page 40: ...1 IO2 IO3 Software Hardware Reset Highest Performance Serial Flash 104MHz Single Dual Quad SPI clocks 208 416Mhz equivalent Dual Quad SPI 50 MB S continuous data transfer rate More than 100 000 erase...

Page 41: ...e and 1uA for power down All devices are offered in space saving packages The W25Q32FV array is organized into 16 384 programmable pages of 256 bytes each Up to 256 bytes can be programmed at a time P...

Page 42: ...ongle The STDP4320 uses MegaChips latest generation DisplayPort dual mode receiver and transmitter technology that supports both DisplayPort and TMDS signal formats This device receives MST format up...

Page 43: ...e HBR2 HBR RBR SST or MST up to eight streams 1 2 or 4 lanes AUX CH 1 Mbps HPD out HDMI DVI operation 3 2 Gbps link rate Functions as eDP and MyDP receiver DisplayPort dual mode transmitters Two trans...

Page 44: ...ports HDCP 1 4 to HDCP 2 2 and HDCP 2 2 to HDCP 1 4 conversions Figure 18 Pin Configuration Features On chip HDMI Receiver and Transmitter core which are compliant with DVI 1 0 HDMI 1 4b and HDMI 2 0a...

Page 45: ...2 Controller for Explore HDMI 2 0 chips which has HDCP 2 2 function It can handle the HDCP 2 2 authentication and ALU calculation for both HDCP 2 2 RX or TX The EPF025R also provide the miscellaneous...

Page 46: ...BUS0 Master can support up to 1 5MHz clock rate On chip USB 1 1 host slave which supports end pint 0 1 2 and 64 byte bulk transfer On chip 4 Timers supporting Timer Pulse Output Event Counter and Puls...

Page 47: ...the display panel thru a single and standard interfacing based on the 80 pin JAE plug and receptacle connectors The power supply to the Pluggable Module together with the defined feature interfaces ar...

Page 48: ...E representative The 80 pin right angle blind mate plug connector p n TX25 80P LT H1E and its receptacle p n TX24 80R LT H1E provide interfacing for the following features Power DC IN 12V 19V 8A max D...

Page 49: ...48 Pin Assignment Table 28 Pin Assignment...

Page 50: ...49 Figure 23 Compatible OPS Connector Pin Layout...

Page 51: ...50 13 TUNER OPTIONAL M88TS2022 SATELLITE TUNER Features and General Description Pin Assigment...

Page 52: ...51 Absolute Maximum Ratings and Recommended Operating Conditions...

Page 53: ...52 14 DEMODULATOR STAGE OPTIONAL A MSB1246 DVB T2 Features...

Page 54: ...d 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 requirements...

Page 55: ...54 Pinning...

Page 56: ...nt count 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 s...

Page 57: ...tion adjustment from 63 ppm to 126 ppm The bq32000 registers include an OF oscillator fail flag indicating the status of the RTC oscillator as well as a STOP bit that allows the host processor to disa...

Page 58: ...K button in remote control power on and wait TV will power up itself 4 If First Time Installation screen comes it means software update procedure is successful B DISPLAYPORT FW UPDATE Please follow DP...

Page 59: ...7 Finally restart the DS product If you see fail please reset monitor and try program again 18 TROUBLESHOOTING A NO BACKLIGHT PROBLEM Problem If product is working led is normal and there is no pictu...

Page 60: ...59 Dimming pin should be high or square wave in open position If it is low please check S97 for Mstar side and panel or power cables connectors...

Page 61: ...60 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 62: ...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...

Page 63: ...62 C IR PROBLEM Problem Extender LED or IR not working Check Extender LED IR card supply on 17MB120DS chasis...

Page 64: ...63 D KEYPAD TOUCHPAD PROBLEMS Problem Keypad or Touchpad is not working Check keypad supply on MB120...

Page 65: ...64 E 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 66: ...oltage 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 These printouts may give a clue about the problem You can u...

Page 67: ...66 Problem No signal in TV mode Check tuner supply voltage 3V3_TUNER and Check tuner options are correctly set in Service menu Check voltage at TUNER_SCL and TUNER_SDA pin of tuner...

Page 68: ...67 I REAL TIME CLOCK PROBLEM Problem Date Time Failure Check RTC supply voltage 3V3_STBY Also there may be a problem about backup supply Please check voltage level of C2503...

Page 69: ...ellite Tuner DVI HDMI3 DSUB9 Optic TI TPS65233 LNB G6F HDMI NAND 512MB NAND DDR3 DDR3 DDR3 DDR3 DDR3 LineIn CVBS YPbPr LineOut Ethernet RJ12 Optic SubwOut SPDIF POWER BLOCK REGULATORS STEPDOWNS ETC LV...

Page 70: ...2 1 2 5V_VCC 5V_VCC R132 4k7 1 2 C548 10u 10V 470R R705 10k R695 F51 60R 1 2 3V3_VCC TP297 C2309 6V3 22u 5V_STBY 3V3_STBY 10u C2308 10V 4k7 R133 10k R373 1 2 3V3_STBY S119 C442 100n 16V STBY_ON OFF ST...

Page 71: ...22u C687 22u 16V C715 R326 10k 1 2 U43 RT6213BHGJ6F 1 2 3 6 5 4 FB EN BOOT VIN LX GND C716 16V 22u C426 16V 100n 5V_STBY 12V_VCC WOWL_EN G6F_CPU_FB CORE_VID1 1k R801 2N7002 Q52 G6F_CORE_FB 2p 50V C87...

Page 72: ...2 E8 F9 G1 G9 K1 D3 E7 C7 B7 G3 F3 A3 B8 A2 A7 C2 C8 C3 D7 H7 G2 H8 H3 F8 F2 F7 E3 M8 H1 B2 D9 G7 K2 K8 N1 N9 R1 R9 A1 A8 C1 C9 D2 E9 F1 H2 H9 L8 T2 L3 K3 J3 L2 K9 K7 J7 M3 N8 M2 J9 T7 L9 M7 L1 J1 T3...

Page 73: ...H_DP TP227 S822 S823 USB1_DP USB1_DN S5 S9 USB_HUB_DP_1 S14 USB_BT_DN S23 USB_BT_DP USB_HUB_DN USB_HUB_DP USB_HUB_DN_1 3V3_NAND USB_HUB_DP_1 S807 S808 USB_TCH_SOC_DN USB_TCH_SOC_DP USB_HUB_DP_1 VCC_EM...

Page 74: ...TP8 TP9 TP10 TP14 TP16 1k R35 50V 27p C748 27p 50V C749 S41 S42 G6F_XIN G6F_XOUT G6F_XOUT G6F_RESET 1N4148 D10 3V3_STBY 10V 100n C95 10k R276 D22 NUP4004M5 5 4 3 2 1 G6F_RESET C750 27p 50V C752 27p 50...

Page 75: ...U18 U20 U26 V1 V8 V9 V10 V11 V12 V13 V14 V15 V16 V20 V21 V22 V26 V29 V32 W3 W8 GND200 GND199 GND198 GND197 GND196 GND195 GND194 GND193 GND192 GND191 GND190 GND189 GND188 GND187 GND186 GND185 GND184 GN...

Page 76: ...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 1k R37 S101 220p 50V C821 1 2 S102 C873 10u 16V R180 100R 1 2 3 4 5 6 7...

Page 77: ...YNC_D1 TS_CLK_D1 TS4CLK TS4D0 TS4VLD TS4SYNC U54 TPS65233 13 14 15 16 9 10 11 12 8 7 6 5 4 3 2 1 LX VIN VCC AGND TCAP ISEL EN ADDR FAULT EXTM VCTRL SDA SCL VADJ PGND BOOST VCP VLNB 12V_VCC S425 C996 2...

Page 78: ...R683 15R C746 68n 50V R825 1M 4k7 R109 RESET_DEMOD FB1 1 2 3 VIN VCC GND D29 C5V6 F140 330R TP48 TP49 S47 SPDIF_OUT_COAXIAL 50V 220p C819 1 2 TP50 R200 100R 1 2 SPDIF_OUT AMP_MUTE R286 10k 5V_SPDIF 1...

Page 79: ...I2C_S_SDA XTAL_I XTAL_O RESET 5 TP240 100R R208 47k R497 1V_G6F_CPU 47k R498 100R R209 1V_G6F_CORE D20 BAW56 TP249 TP250 TP253 MFC_SPI_SCZ_1 TP177 MFC_SPI_SDO_1 MFC_SPI_SDI_1 MFC_SPI_SCK_1 MFC_SPI_SC...

Page 80: ...V 100n C71 MFC_AVDDL_DVI 60R F7 10V 100n C73 10u 6V3 C612 100n C74 10V 100n C75 10V MFC_AVDDL_HDMI_TX C76 100n 10V MFC_AVDD_HDMI_TX 10V C77 100n C78 10V 100n 10V 100n C79 MFC_AVDD_DVI F8 60R 50V 100n...

Page 81: ...z LVA2N_100Hz LVA1P_100Hz LVA1N_100Hz LVA0P_100Hz LVA0N_100Hz TP352 TP353 TP354 TP355 TP356 TP357 TP358 TP359 TP360 TP361 TP362 TP363 VBY_12N S393 S394 S395 S396 S397 S398 S399 S400 S401 S402 S403 S40...

Page 82: ...1k R50 3V3_VCC C566 1u 10V S118 ARC ARC S120 U6 MSD95M0D T2 T3 U1 V2 V3 W2 R1 R2 R6 T5 Y2 U4 L1 M2 M3 N2 P2 P1 K2 K3 L4 L5 M4 M5 D2 D3 E2 E3 F2 F1 C3 D1 H6 H5 K6 J6 G2 G3 H2 H3 J2 J1 F3 G1 J4 K5 H4 J...

Page 83: ...P5 P6 P7 P9 P11 P12 P13 P22 P23 P24 P25 P26 P27 P28 P29 P30 P31 P32 R1 R2 R3 R4 R5 R9 R10 R11 R12 R13 R21 R22 R23 R24 R27 R28 R30 R31 T3 T4 T5 T6 T7 T8 T9 T10 T12 T13 T14 T21 T22 T23 T24 T27 T28 T29...

Page 84: ...TX00 TX00 TX_AVDD_3 TXC0 TXC0 AVSS_11 AVSS_10 TX_PVDD_2 100n C2622 TXB_HPD HDMIC_HPD S876 D87 AZ1045 04F 10 9 7 6 5 4 3 2 1 P1 P2 GND P4 P5 NC1 NC2 NC3 NC4 AZ1045 04F D88 10 9 7 6 5 4 3 2 1 P1 P2 GND...

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