Hisense LTDN40K321UWAU Service Manual
  1. Manuals
  2. Brands
  3. Hisense Manuals
  4. LCD TV
  5. LTDN40K321UWAU
  6. Service manual
Hisense LTDN40K321UWAU Service Manual

Hisense LTDN40K321UWAU Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

LCD Television
Service Manual
Chassis：
MTK5657
Product:
、
、
LTDN40K321UWAU
LTDN50K321UWT
LTDN55K321UWT 、 LTDN58K321UWAU
Ver 1.0
Hisense Electric Co.，Ltd.
August，2015

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the LTDN40K321UWAU and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Hisense LTDN40K321UWAU

Summary of Contents for Hisense LTDN40K321UWAU

  • Page 1 LCD Television Service Manual Chassis： MTK5657 Product: 、 、 LTDN40K321UWAU LTDN50K321UWT LTDN55K321UWT 、 LTDN58K321UWAU Ver 1.0 Hisense Electric Co.，Ltd. August，2015...

  • Page 2: Table Of Contents

    Contents Contents ..................................- 2 - Service Manual ................................- 3 - 1. Precautions and notices ............................. - 3 - 1.1 Warning ..............................- 4 - 1.2 Notes ............................... - 7 - 2. Product Function Specifications ........................- 9 - 2.1 TV Front and Rear ..........................

  • Page 3: Service Manual

    USE OF NON-AUTHORIZED PARTS WILL VOID THE MANUFACTURE'S WARRANTY Proper service and repair is important to the safe, reliable operation of all Hisense Equipment. The service procedures recommended by Hisense and described in this Service Guide are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose.

  • Page 4: Warning

    Ref. No. in the parts list. Use of non-manufacturer's recommended parts may create shock, fire, or other hazards. Under no circumstances should the original design be modified or altered without written permission from RCA. Hisense Eassumes no liability, express or implied, arising out of any unauthorized modification of design.
  • Page 5 IMPORTANT: Always disconnect the power cord from AC outlet before replacing parts or modules. 1.1.3 To prevent electrical shock, use only a properly grounded 3 prong outlet or extension cord. 1.1.4 When replacement parts are required, be sure to use replacement parts specified by the manufacturer or have the same characteristics as the original part.
  • Page 6 damage the product and may cause a fire. (2) Do not use this product: > High humidity areas > In an area where any water could enter or splash into the unit. High humidity and water could damage the product and cause fire. (3) If a foreign substance (such as water, metal, or liquid) gets inside the panel module, immediately turn off the power.

  • Page 7: Notes

    1.2 Notes Notes on Safe Handling of the LCD panel and during service The work procedures shown with the Note indication are important for ensuring the safety of the product and the servicing work. Be sure to follow these instructions. •...
  • Page 8 matter. • Be sure to handle the circuit board by holding the large parts as the heat sink or transformer. Failure to observe this precaution may result in the occurrence of an abnormality in the soldered areas. • Do not stack the circuit boards. Failure to observe this precaution may result in problems resulting from scratches on the parts, the deformation of parts, and short-circuits due to residual electric charge.

  • Page 9: Product Function Specifications

    2. Product Function Specifications 2.1 TV Front and Rear TV Front - 9 -...
  • Page 10 TV Rear & Making Connections TV Rear HDMI 3(2.0) HDMI 4(2.0) DIGITAL AUDIO OUT AV IN VIDEO COMPONENT IN NOTES Check the jacks for position and type before making any connections. Loose connections can result in image or color problems. Make sure that all connections are tight and secure.

  • Page 11: Tv Basic Configure

    2.2 TV basic configure TV Model Panel Mode LVDS(Main-Panel) Main board Power board LTDN40K321UWAU HD396DU-B01 FFC-V-51CP-275-Z1\275.0\ROH RSAG2.908.6135-02\ROH RSAG2.908.5687-46\ROH HD500DU-B01 FFC-51CP-260-1-Z1\260.0\RO LTDN50K321UWT RSAG2.908.6135-02\ROH RSAG2.908.5687-28\ROH HD550DU-B51 FFC-51CP-350-1-Z1\350.0\ROH RSAG2.908.6135-02\ROH RSAG2.908.6106-03\ROH LTDN55K321UWAU LTDN58K321UWAU HD580DU-B01 FFC-V-51CP-341-1-Z1\341\ROH \RSAG2.908.6135-02\ROH RSAG2.908.6106-08\ROH 2.3 Main board and power board Main board :RSAG7.820. 6135/ROH layout: The TOP Detail terminals function see page 10—The TV Rear...
  • Page 12 Side connectors Bottom connectors - 12 -...
  • Page 13 LTDN40K321UWAU &LTDN50K321UWT power board : RSAG7.820.5687/ROH - 13 -...
  • Page 14 LTDN55K321UWT & LTDN58K321UWAU power board:RSAG7.820.6106/ROH - 14 -...

  • Page 15: Specification

    2.4 Specification - 15 -...

  • Page 16: Remote Control

    Remote Control Power Standby button: Source selecting button INPUT Power on/ Standby Select a channel or input numbers Start Timeshift Display subtitles in the T.shift Subtitle Live TV Special function buttons Quick Setup Fast access to the all applications the on-screen keyboard Navigation buttons (Up/Down/Left/Right) Exit the menu or exit...

  • Page 17: Factory/Service Osd Menu And Adjustment

    3. Factory/Service OSD Menu and Adjustment 3.1 How to enter the Factory OSD Menu . With user’s RC 1. Power TV on 2. Press button on RC and call up “Quick Setup” Menu. 3. Quick Setup -> ALL-> then press “>” button to ensure on RC. 4.
  • Page 18 Next Next - 18 -...

  • Page 19: Factory Osd Menu

    Next Next When Balance is “0” ,input figures “1->9->6->9” in sequence. 3.2 Factory OSD Menu - 19 -...
  • Page 20 3.2.1 White Balance Note: Different source has different WB values. Before adjusting, please change to desired source. 3.2.1 Signal prefabricate - 20 -...
  • Page 21 3.2.3 Factory Option Item Default Options Notes M-Can enter factory mode with factory RC or user RC. MODE M, U U-Can enter factory mode only with user’s RC. Note: ToFac “M” is only used for factory production. Clean Chip Write keys Version HDCP2.2 key - 21 -...

  • Page 22: Designer Menu

    Note: The factory menu date varies according to different sources. Incase changing the factory data by error, you can choose to “Clean Protected”, by which you can resume the default value. To clear the EEPROM: a. Select the item “Clean chip”. b.
  • Page 23 If the TV has 3D function, then Design menu has 3d delay (+100) and 3d delay (+1) items.as above figure. otherwise has not. Video: - 23 -...
  • Page 24 Picture mode Audio Audio - 24 -...

  • Page 25: Software Upgrading

    Audio mode Notice: Above “Factory/Service OSD Menu”is reference for chassis MTK5657 , please refer to the actual units to determine the appearances. 4. Software Upgrading 4.1 USB Upgrdaing 4.1.1 USB main software upgrading directly The main software can be upgraded by USB Disk. ...
  • Page 26  The TV will identify the software and upgrade automatically.  After update success, TV can automatically start. 4.1.2 USB TCON software upgrading directly - 26 -...

  • Page 27: Usb Upgrade Defeat

    4.2 USB upgrade defeat If USB upgrading defeat, TV crashed. We must burn the emmc flash program file“ *.bin ”to the flash IC first. second USB disk to upgrade the upgrade_loader.pkg file. Hardware connecting Connect the unit to your pc with a USB-to-serial port cable. USB port connects to your PC and serial port to the TV’s RS232 port.
  • Page 28 Select the default value, the driver will be installed step by step. - 28 -...

  • Page 29: Upgrading With The Flashtool V0.6.9.1.Exe

    4.3 Upgrading with the FlashTool v0.6.9.1.exe 1、 FlashTool is a green program needing no installation. After Connect the unit to your pc with a USB-to-serial port cable，run FlashTool v0.6.9.1.exe. Please refer to the following steps to set. Select Memory Flash Card serial port Baud Rate...
  • Page 30 Open “Device Manager” and find which port is connected with the TV. In above picture, COM4 is connected to the TV, so, select “COM4” and if COM6 is connected to the TV, so select “COM6”. Select the right baud rate according to chip model. For this unit( chip model is MT5657), select 115200. 2、AC power on the TV ,then Click to connect，if connect successfully then button...
  • Page 31 Press “Upgrade” button and start upgrading.，if update defeat, try again. Start upgrade Select *.bin file - 31 -...
  • Page 32 - 32 -...

  • Page 33: Trouble Shooting

    5. Trouble shooting When there is something wrong with your TV, you can try turning off the TV and then restart it. You can also operate according to the follow chart. If the problems still cann’t be solved, please contact the profession technician. - 33 -...

  • Page 34: Troubleshooting For Remote Control

    5.1 Troubleshooting for Remote Control Remote control does not work Try new batteries Replace battery Replace RC Replace remote control Check IR receiver Change Led & IR board Replace Led & IR BD Change Led & IR cable Replace Led & IR cable Replace main board - 34 -...

  • Page 35: Troubleshooting For Function Key

    5.2 Troubleshooting for Function Key Buttons does not work Check solder connections and Check switches see if any switches are stuck. Replace Key BD Check key board Check Key BD cable Change Key BD Replace main board - 35 -...

  • Page 36: Tv Won't Power On

    5.3 TV won’t Power On TV won’t power on Make Sure Power Check Power source is live light? Output Replace BLUE Check Power Power Cord Cord Check/replace IR Only BD or Keypad one works Try Power on by Check signal RC and Button Panel Bright Source...

  • Page 37: Troubleshooting For Audio

    5.4 Troubleshooting for Audio No sound Reconnect Check connecter Replace speaker wire Check speaker wire Replace speaker set Check speaker set Replace main board Power Supply Board - 37 -...

  • Page 38: Troubleshooting For Tv/Vga/Hdmi Input

    5.5 Troubleshooting for TV/VGA/HDMI input No picture on the screen Check Signal Source Make sure signal source is available Reconnect Check connect Check cable Replace cable Replace main board - 38 -...

  • Page 39: Troubleshooting For Ypbpr Input

    5.6 Troubleshooting for YPbPr input No picture on the screen Check Source work or not Check Source Device Reconnect Check connect Check Wires (Green Blue, Red) Replace wires Replace main board - 39 -...

  • Page 40: Troubleshooting For Video Input

    5.7 Troubleshooting for Video input No picture on the screen Check Source work or not Check Signal Source Reconnect Check connect Replace Cable/Wires Check Cable/ Wires Replace main board 6. Signals Block Diagram and power assign: 7. Schematic circuit diagram 8.
  • Page 41 NT72324 MHL_Sense Data HPD_CBUS HDMI_5V I2C(SOC _CTL _FRC) RESET(SOC _CTL _FRC) Data PANEL_IN_3D_LR_SYNC VB1_HTPDN/LOCKN PANEL_3D_EN VB1 8lane(4K x 60HZ) VIDEO VB1 RXA(4lane) HDMI_5V SYNC_TO_FRC (VIDEO) VB1 RXB(4lane) VB1 16LANE (4K x 120HZ) PANEL -TCON Data VB1_HTPDN/LOCKN_OSD VB1 4lane(4K x 30HZ) UI VB1 RXC(4lane) 3D_SYNC(FROM PANEL) VTX_HTP0N...
  • Page 42 JTAG JTDI GPIO_60 JTAG JTRST# GPIO_61 GPIO_62 GPIO_63 SDIO POWER CONTROL SDIO_PWR_CTRL GPIO_64 GPIO_65 GPIO_66 USB Power Enable USB_PWR_EN0 Hisense Electric Co.,LTD Title Title Title MT5657 MT5657 MT5657 Size Size Size Document Number Document Number Document Number Date: Date: Date:...
  • Page 43 270k TPS54328 1n/50V/NC 100n/16V 1u/25V 8.2n/50V MARK/NC MARK/NC Vout=0.765*(1+R1/R2)=3.32V MARK/NC MARK/NC D4/NC D4/NC D4/NC D4/NC MARK/NC MARK/NC Hisense Electric Co.,LTD RSAG7.308.0219 Title Title Title 散热器贴N1(主芯片)上 MT5657 MT5657 MT5657 Size Size Size Document Number Document Number Document Number Date: Date: Date:...
  • Page 44 100n/16V NC_52 NC_105 XS13 AVLC18S02015 AVLC18S02015 Close to Main Chip Analog Power 3.3VS 3.3VS 3.3VS AVDD33_REG_STB AVDD33_RGB_STB AVDD33_PLL_STB RS232 Pin crossover Hisense Electric Co.,LTD C104 C105 C106 C107 PIN4. PWR Title Title Title 10u/16V 100n/16V 100n/16V 100n/16V PIN3. RXD MT5657...
  • Page 45 100n/16V 2.2u/10V DRV632/BBY DVDD3V3 C180 R162 LO1R_PA 1u/10V 100k LO1L_PA R163 HP_DET C185 卧式手插端子 100n/16V/NC AVLC18S02015 Hisense Electric Co.,LTD Title Title Title MT5657 MT5657 MT5657 Size Size Size Document Number Document Number Document Number Date: Date: Date: Tuesday, March 03, 2015...
  • Page 46 R199 R200 0R/NC 30k/NC PR0P 1u/16V/NC 100R R216 R217 10n/50V RV20 RV19 10k/NC 10k/NC AVLC18S02015/NC AVLC18S02015/NC Hisense Electric Co.,LTD Title Title Title MT5657 MT5657 MT5657 Size Size Size Document Number Document Number Document Number Date: Date: Date: Monday, January 26, 2015...
  • Page 47 N1-3 AV25 BE0P AU25 AO4459最大电流6A，超过6A请更改为DMG4407， BE0N DVDD3V3 AT24 BE1P VCC-Panel AR24 封装相同，最大电流9A。 BE1N AT23 12VS_FRC XP14 BE2P VCC-Panel 12VS_FRC AR23 BE2N BLM31PG121SN1/NC AV23 R689 R690 R687 BECKP R686 AU23 BLM31PG121SN1/NC VRX_7P BECKN AT22 VRX_7N BLM31PG121SN1/NC AO4459 10k/NC BE3P 10k/NC AL21 AR22 10k/NC 10k/NC...
  • Page 48 C307 C308 C309 C310 C311 4.7u/10V 1u/10V 100n/16V 100n/16V 100n/16V 100n/16V 100n/16V 100n/16V 100n/16V Near DRAM Near DRAM Hisense Electric Co.,LTD Title Title Title MT5657 MT5657 MT5657 Size Size Size Document Number Document Number Document Number Date: Date: Date: Thursday, March 12, 2015...
  • Page 49 C354 C355 C356 C357 C358 10u/10V/NC 1u/16V/NC 100n/16V/NC 100n/16V/NC 100n/16V/NC 100n/16V 100n/16V 100n/16V/NC 100n/16V/NC BRCLK0# BRCLK0# Hisense Electric Co.,LTD Title Title Title MT5657 MT5657 MT5657 Size Size Size Document Number Document Number Document Number Date: Date: Date: Wednesday, March 25, 2015...
  • Page 50 DDR_PWREN R311 C390 100n/16V C393 C394 C395 C396 C397 C398 100n/16V 100n/16V 100n/16V 100n/16V 100n/16V 100n/16V Hisense Electric Co.,LTD Title Title Title MT5657 MT5657 MT5657 Size Size Size Document Number Document Number Document Number Date: Date: Date: Wednesday, March 25, 2015...
  • Page 51 VOUT BLM18PG121SN1/NC C493 C494 C495 C491 VOUT C492 C490 100n/16V/NC 100n/16V 10u/10V 1u/16V/NC 1u/16V 100n/16V AP1122E Hisense Electric Co.,LTD Title Title Title MT5657 MT5657 MT5657 Size Size Size Document Number Document Number Document Number Date: Date: Date: Tuesday, January 27, 2015...
  • Page 52 BLM18PG121SN1/NC 5V_VBUS HDMI0_5V MHL_OC 5VS_UM BLM18PG121SN1 C804 C504 C824 C505 R848 10u/16V 22u/6.3V 22u/6.3V 100n/16V 100k G524B3P81U Hisense Electric Co.,LTD Title Title Title MT5657 MT5657 MT5657 Size Size Size Document Number Document Number Document Number Custom Custom Custom Date: Date:...
  • Page 53 HDMI2(ARC) HDMI4 BSE-4 VD19 GND2 RX_1_2 R414 RX-1_2 4.7R VD20 DATA2+_0 RX-1_2 RX-1_2 GND1 OUT10 RX_3_2 R415 4.7R RX-3_2 DATA2S DATA2+ RX-3_2 RX-3_2 RX_1_2B R416 4.7R RX-1_2B OUT10 DATA2-_2 RX-1_2B RX-1_2B DATA2S RX_1_1 R417 4.7R RX-1_1 RX_3_2B R418 RX-3_2B OUT9 4.7R DATA1+_3 DATA2-...
  • Page 54 C836 1u/16V AO3401L 1u/16V 100n/16V R860 R819 VCCK R820 WAKEUP_PWR_EN R859 MMBT3904LT1 C834 MMBT3904LT1 4.7k 100n Hisense Electric Co.,LTD Title Title Title MT5657 MT5657 MT5657 Size Size Size Document Number Document Number Document Number Date: Date: Date: Monday, January 26, 2015...
  • Page 55 DVSS 100u/16V DVSS DVSS DVSS DVSS DVSS DVSS DVSS DVSS DVSS DVSS DVSS DVSS DVSS MT5657_31x31 Hisense Electric Co.,LTD Title Title Title MT5657 MT5657 MT5657 Size Size Size Document Number Document Number Document Number Date: Date: Date: Monday, January 26, 2015...
  • Page 56 VD807 VD812 IN5408 MUR460 C846 C803 474/AC275V 471/AC250V (EMC) F801 C871 RT801 VD808 VB801 224/450V XP802 T 6.3A L 250V L812 NTC5D2-15 L824 MUR460 W806 L802 KBJ1006 C865 L801 R833 XP803 W807 R970 R802 LCL-3505HF 68U/450V LCL-3505HF V802 C860 R804 R807 R817 R824...
  • Page 57 power board:: 6106 Generated by Foxit PDF Creator © Foxit Software http://www.foxitsoftware.com For evaluation only. VD807 W8 18 IN5408 VD80 4 M80 3 M81 3 MUR160 W8 06 M80 4 M82 6 M80 5 C80 3 M81 1 W8 03 VD808 M80 2 47 0P /4 00V...
  • Page 59 １ ２ ３ ４ ５ ６ ７ ８ ９ １０ １１ １２ １３ １４ １５ １６ １７ １８ ２０ ２１ ２２ ２３ ２４ ２５ ２６ ２７ １９ 更改版本 更改内容 更改人 更改日期 Ａ Ａ 更 Ｖ１．１ 改 Ｖ１．２ 履 Ｖ１．３ 历 Ｖ１．４...

This manual is also suitable for:

Ltdn50k321uwtLtdn55k321uwtLtdn58k321uwau

Table of Contents