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Hisense LTDN50K680XWAM3D, Service Manual

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Hisense LTDN50K680XWAM3D Service Manual Download Page 32

 

 
 

 

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You can also operate according to the follow chart. If the problems still cann’t be solved, please 
contact the profession technician. 

 

 

Summary of Contents for LTDN50K680XWAM3D

Page 1: ...LCDTelevision Service Manual Chassis MTK5652 MST6M40 Product LTDN50K680XWAM3D Ver 1 0 August 2015...

Page 2: ...ware Upgrading 19 4 1 USB Software Upgrading directly 19 4 2 USB upgrading unsuccessfully 19 4 3 Upgrading with the FlashTool0 6 0 exe 22 4 4 Network updating 25 5 Trouble shooting 31 5 1 Troubleshoot...

Page 3: ...ve methods of performing service operations Some of these service operations require the use of tools specially designed for the purpose The special tools should be used when and as recommended It is...

Page 4: ...sion from RCA Hisense Eassumes no liability express or implied arising out of any unauthorized modification of design Servicetech assumes all liability 1 1 2 All ICs and many other semiconductors are...

Page 5: ...orized substitutions may result in fire electric shock or other hazards and will void the manufacturer s warranty 1 1 5 Safety regulations require that after a repair the set must be returned in its o...

Page 6: ...e product it may cause fire or electric shock 5 Do not pull out or insert the power cable from to an outlet with wet hands It may cause electric shock 6 Do not damage or modify the power cable It may...

Page 7: ...off Especially when installing and removing the power board start servicing at least 2 minutes after the main power has been turned off While the main power is on do not touch any parts or circuits ot...

Page 8: ...g is completed Verify that the peripherals of the serviced points have not undergone any deterioration during servicing Also verify that the screws parts and cables removed for servicing purposes have...

Page 9: ...9 2 Product Function 2 1 TV Front and Rear TV Front LTDN50K680XWAM3D TV Rear...

Page 10: ...10...

Page 11: ...11 2 2 Specification...

Page 12: ...12 2 3 Main board layout Main board layou t 6050 The board is designed for UD 3840 2160...

Page 13: ...13 Power board layou t 4903 PFC EMC...

Page 14: ...2X25KLB500 LG 1 ROH VB1 51Pin 3 Factory Service OSD Menu and Adjustment 3 1 To enter the Factory OSD Menu With user s RC 1 Power TV On 2 Press Menu button and call up User OSD Menu 3 Select Audio Bal...

Page 15: ...15 3 2 1 White Balance Note Different source has different WB values Before adjusting please change to desired source 3 2 2 Signal prefabricate...

Page 16: ...16 3 2 3 Factory Option...

Page 17: ...f the TV readable only Item Meaning Note Clean Protected Clear partly Clean data except WB data and Auto Color data Clean All Clear completely Clean all data Note The factory menu date varies accordin...

Page 18: ...18 Note The above Factory Service OSD Menu is reference for chassis MTK5652 please refer to...

Page 19: ...er pkg file in the root directory of USB Disk Insert USB Disk to USB port then power on the TV The TV will identify the software and upgrade automatically 4 2 USB upgrading unsuccessfully If USB upgra...

Page 20: ...20 4 2 1 Install the driver Double click the icon install the driver Select the default value the driver will be installed step by step Connect to the TV RS232 port USB Connect to the PC...

Page 21: ...21...

Page 22: ...Tool is a green program needing no installation After Connect the unit to your pc with a USB to serial port cable run FlashTool0 6 0 exe Please refer to the following steps to set Select mode of main...

Page 23: ...23 How to choose Communicate port and flash baud rate See the following instruction...

Page 24: ...he right baud rate according to chip model For this unit chip model is MT5652 select 115200 2 Click to connect if connect successfully then button from red turn green Click bounce the following dialog...

Page 25: ...s three ways Auto Upgrade Network upgrade and USB upgrade No matter Auto Upgrade is ON or Off Network Upgrade is validated 4 4 1 Auto Upgrade When set to on system can automatically check whether or n...

Page 26: ...26 Network upgrade Check the process and it will prompt you to upgrade the software Network upgrade Press menu key with RC select as following Figure 1 Figure 2...

Page 27: ...27 Figure 3 Check new version bounce the following Figure 4 Select Yes to downloading...

Page 28: ...28 Figure 5 After verify bounce dialog to select yes to update the firmware Waiting Figure 6...

Page 29: ...29 Figure 7 Bounding the following interface that indicates firmware update is successful...

Page 30: ...g about 5 minutes TV bounce following prompt message otherwise upgrade is defeated Figure 9 USB upgrade 1 Copy the upgrade_loader pkg file to USB Disk 2 Make sure there is no other pkg file in the roo...

Page 31: ...31 figure 2 Next update steps can according to the network upgrade 5 Trouble shooting When there is something wrong with your TV you can try turning off the TV and then restart it...

Page 32: ...32 You can also operate according to the follow chart If the problems still cann t be solved please contact the profession technician...

Page 33: ...ol Remote control does not work Try new batteries Replace RC Check IR receiver Change Led IR board Change Led IR cable Replace main board Replace battery Replace remote control Replace Led IR BD Repla...

Page 34: ...g for Function Key Buttons does not work Check switches Check key board Check Key BD cable Change Key BD Replace main board Check solder connections and see if any switches are stuck Replace Key BD OK...

Page 35: ...place IR BD or Keypad PCA TV won t power on Is LED light NO YES Check Power Output YES NO Check Power Cord Only one works Replace Main BD Try Power on by RC and Button Neither works Both Work Power on...

Page 36: ...Troubleshooting for Audio No sound Check connecter Check speaker wire Replace main board Reconnect Replace speaker wire YES YES NO NO Check speaker set Replace speaker set YES NO OK YES NO Power Suppl...

Page 37: ...Troubleshooting for TV VGA HDMI input No picture on the screen Check Signal Source Check connect Check cable Replace main board Make sure signal source is available Reconnect Replace cable NO YES YES...

Page 38: ...Troubleshooting for YPbPr input No picture on the screen Check Source work or not Check connect Check Wires Green Blue Red Replace main board Check Source Device Reconnect Replace wires NO YES YES NO...

Page 39: ...7 Troubleshooting for Video input No picture on the screen Check Source work or not Check connect Check Cable Wires Replace main board Check Signal Source Reconnect Replace Cable Wires NO YES YES NO Y...

Page 40: ...40 6 Signals Block Diagram and power assign next page 7 Schematic circuit diagram 8 Explode View...

Page 41: ...t Ethernet TUNER RF IN USB Hub WiFi I2C0 LVDS OUT LVDS IN Speater_L Speater_R EarPhone EarPhone AV YPbPr VGA HDMI1 HDMI2 HDMI3 HDMI3 CEC AV1 YPbPr VGA HDMI OUT HDMI IN SPDIF SPDIF I2C_TUNER AMP_1 TAS5...

Page 42: ...12F609 LVDSVDD AO3401L PWR BEAD T CON 1 5V 3 3V TAS5707 TAS5711 Sillicon Tuner TPS54528 AO4459 AO4459 AO3401L AP1084 MP1470 24C32 MT5652 TAS5707 DRV632 SERIAL FLASH LD1117 ADJ PIC12F609 LVDSVDD 3 3V_T...

Page 43: ...ER OUT HPOUT SPEAKER AMP Block Diagram USB1 USB2 HDMI1 HDMI0 SCART_FS_SEL LOCAL_DIM_EN TUNER_SW EMMC_RST ADIN0 POWER_LED AMP_MUTE MUTE_HP OPWM6 LED3 PHYAD3 LED2 PHYAD2 DEMO TS STREAM 3D_CTRL GPIO_10 G...

Page 44: ...AM6 RBCKP AK6 RB3N AM7 RB3P AL7 RB4N AK7 RB4P AL8 RC0N AK8 RC0P AL9 RC1N AM9 RC1P AK9 RC2N AM10 RC2P AL10 RCCKN AK10 RCCKP AL11 RC3N AK11 RC3P AL12 RC4N AM12 RC4P AK12 RD0N AM13 RD0P AL13 RD1N AK13 R...

Page 45: ...9 VDDQ DQU5 DQU7 VSSQ VDD VSS VDDQ DQU3 DQU1 VSSQ VDDQ DMU VSS VSSQ DQL0 VDDQ DQL2 DQSL VSSQ DQL6 DQSL VREFDQ VDDQ DQL4 NC VSS RAS VDD CAS NC CS WE BA0 BA2 VDD A3 A0 A5 A2 VDD A7 A9 DQU4 VDDQ VSS DQS...

Page 46: ...V Y15 AVDDL_MOD 1V P11 AVDDL_MOD 1V R11 AVDDL_MOD 1V W11 AVDDL_DRV 1V V11 AVDDL_MOD 1V P12 AVDDL_DRV 1V R12 AVDDL_MOD 1V W10 AVDDL_MOD 1V Y10 AVDD_MOD 2 5 M11 AVDD_MOD 2 5 N11 AVDD_MOD 2 5 M12 AVDD_MO...

Page 47: ..._MT5651 OSCL2 OSDA2 3D_GLASS_SYNC 3D_EN VX1T_LOCKN VX1T_HTPDN 5V LD_EN_6M40 GND 3 3V_6M40 3 3VS 3 3V_6M40 DVDD3V3 OSDA0 OSCL0 RESERVED_2 RESERVED_3 RESERVED_4 RESERVED_1 GPIO08 VX1T_LOCKN VX1T_HTPDN C...

Page 48: ...OUT 4 N33 TPS54528 VIN 8 EN 1 VRG5 3 SS 4 GND 5 VFB 2 VBST 7 SW 6 EPAD 9 R14 1k R37 180R L39 BLM18PG330SN1D NC C23 22p 50V NC 5V R233 1k R23 10k C42 10u 10V NC C7 100n 16V R3 1k C217 1u 16V R12 2k 3V3...

Page 49: ...10n 50V R710 18k NC C60 100n 16V C91 100n 16V R72 10k C78 100n 16V NC C85 4 7u 10V VD1 1N4148W 1 2 C80 100n 16V NC R88 4 7k R68 10k NC C56 100n 16V C61 100n 16V N50 AT24C32N 10SI 2 7 A0 1 A1 2 A2 3 G...

Page 50: ...T5651_0928 N3F USB_DP_P0 U24 USB_DM_P0 U25 USB_DP_P1 T24 USB_DM_P1 T25 GPIO10 R24 GPIO11 R25 AVDD33_USB P25 AVSS33_USB P17 RXVN_1 AD2 RXVP_1 AE2 TXVN_0 AD3 TXVP_0 AE3 REXT AE1 AVDD33_ETH AD4 AVSS33_LD...

Page 51: ...0R NC R674 10K R426 10R L76 BLM18PG121SN1 XP20 1 2 3 4 R644 0R NC R419 0R R471 4 7k NC R659 0R NC C541 10p 50V NC XP17 1 2 3 4 5 6 7 8 9 10 11 12 13 15 14 R414 0R NC R643 0R NC R416 2 2k C650 100n 16...

Page 52: ...2u 6 3V N15 MP1470 VIN 3 GND 1 EN 5 FB 4 BST 6 SW 2 RP9 22R C125 100n 16V NC RP2 22R R135 1k C131 100n 16V MT5651_0928 N3A RDQ0 C1 RDQ1 H3 RDQ2 D3 RDQ3 H2 RDQ4 C2 RDQ5 J1 RDQ6 B1 RDQ7 J2 RDQ8 J4 RDQ9...

Page 53: ...isense Electric Co LTD 17 7 A3 Friday May 09 2014 Title Size Document Number Rev Date Sheet of MT5652 VGA INPUT 1 0 Hisense Electric Co LTD 17 7 A3 Friday May 09 2014 R148 0R RV5 AVLC18S02015 R154 0R...

Page 54: ...MT5652 YPBPR AV INPUT 1 0 Hisense Electric Co LTD 17 8 A3 Monday December 02 2013 C179 1u 10V R179 100R S5 D4 R185 30k R183 100R C190 47p 50V C176 100n 16V L19 BLM18PG121SN1 M6 MARK RV15 C183 47p 50V...

Page 55: ...isense Electric Co LTD 17 9 A3 Monday December 02 2013 C499 220p 50V C494 1u 25V R590 0R VD26 ICVL0518030FR N42 DRV632 GND 4 Mute 5 VSS 6 CN 7 INR 1 INL 14 INL 13 OUTL 12 UVP 11 GND 10 VDD 9 CP 8 INR...

Page 56: ...Co LTD 1 0 HDMI1 HDMI2 HDMI3 MT5652 A2 Monday December 02 2013 N41 AOZ8905 VN 2 CH3 4 CH2 3 CH4 6 CH1 1 NC 5 C209 100n 16V C212 100n 16V C206 100n 16V R217 0R N38 AOZ8905 VN 2 CH3 4 CH2 3 CH4 6 CH1 1...

Page 57: ...2V GND 5V LVDS_PWR_EN AVDD1V2 12V TX_AE3PH TX_AE3NH TX_AECKPH TX_AECKNH TX_AO3PH TX_AO3NH TX_AO4PH TX_AO4NH TX_AE0PH TX_AE0NH TX_AE1PH TX_AE1NH TX_AE4PH TX_AE2PH TX_AE2NH TX_AO0PH TX_AO0NH TX_AO1PH TX...

Page 58: ...NC R494 4 7k C426 1u 16V R436 0R NC R398 110R C281 100n 16V C534 100n 16V C533 100n 16V C365 47p 50V R395 100R NC L37 BLM18PG121SN1 C429 100n 16V C436 10n 50V C529 100n 16V C51 22u 6 3V R691 4 7k NC T...

Page 59: ...17 Hisense Electric Co LTD 1 0 USB MT5652 A3 Monday December 02 2013 RV56 R184 100k C522 100n 16V C349 10u 10V FE1_QFP48 N9 FE1 1 HX DIS_REG 37 VD5_IN 38 VD33_OUT 39 TEST 40 VD33 41 DRV 42 LED1 43 LE...

Page 60: ...220n 50V VD20 1N4148W 1 2 C274 22p 50V V23 1 2 3 C275 22p 50V C321 1u 25V R264 33R R267 10R NC R281 2 2R NC VD11 1N4148W 1 2 V22 MMBT3906LT1 1 2 3 R293 22k C267 100n 16V C238 1u 50V NC C280 10n 50V N...

Page 61: ...50V C389 100n 16V C348 47n 16V C619 220p 50V NC C444 47p 50V C395 1u 25V R468 10k R312 15k R466 4 7R NC V40 MMBT3904LT1 3 1 2 C362 470n 50V VD14 1N4148W NC 1 2 C401 1u 10V R654 10k R678 10k V19 MMBT3...

Page 62: ...MMSZ18T1G VZ903 2K R919 PC817B N893 1K R931 4K7 R930 4K7 R929 104 50V C928 C 2 B 1 E 3 BCP56 10T1G C 4 V903 47uF 25V C852 VCC 10uF 25V C853 474 NC C855 474 50V C856 BRI BLSW NCP1608 FB 1 CTRL 2 Ct 3 C...

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