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Service Manual

- 9 -

Model No.:

3-2-1 Function Description:

Main Board

Process signal which incept from exterior equipment then translate into signal that panel

can display.

3-2-2 Connector definition

Main board connector

Power connectors ( J16)

Ｐｉｎ　ｎｕｍｂｅｒ　

Ｓｉｇｎａｌ　ｎａｍｅ　

１　

ＧＮＤ　

２　

ＢＬ－ＡＤＪＵＳＴ　

３　

ＢＬ－ＯＮ／ＯＦＦ　

４　

ＧＮＤ　

５　

ＰＷＲ－ＯＮ／ＯＦＦ　

６　

＋５Ｖ＿Ｓｔａｎｄｂｙ　

７　

＋５Ｖ＿Ｎｏｒｍａｌ　

８　

+5V_Normal

ＧＮＤ　

１０　

ＧＮＤ　

１１　

ＧＮＤ　

１２　

＋１２Ｖ＿Ｎｏｒｍａｌ　

１３　

＋１２Ｖ＿Ｎｏｒｍａｌ　

Notes:

J16-Pin 3: Backlight on/off:

The system can turn on or turn off the backlight of TFT LCD Panel through the power

supply unit path.

J16-Pin 5: System power on / standby

System board will use this pin to control system power.

J16-Pin 2: Control the luminance of backlight

The system can generate the PWM signal to control the strength of TFT LCD Panel’s

backlight through this connector

Содержание LE40U5000TF

Страница 1: ...c It does not contain warnings or cautions to advise non technical individuals of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injur y or death ...

Страница 2: ...13 4 Disassemble andAssemble 14 4 1 Remove the Pedestal 14 4 2 Remove the Back Cover 14 4 3 Remove the Adhesive Tape 14 4 4 Remove the Main Board 15 4 5 Remove the Speaker 15 4 6 Remove the Remote Control Board 16 4 6 Remove the Power board 16 5 Installation Instructions 17 5 1 External Equipment Connections 17 5 2 HDMI Connections 21 6 Operation Instructions 24 6 1 Front Panel Controls 24 6 2 Bac...

Страница 3: ...rementsand Adjustments 36 8 1 How to enter into the factory model 39 8 2 How to update software 40 8 3 How to enter into the Hotel Model 41 9 Trouble shooting 42 9 1 Simple Check 42 9 2 Main Board Failure Check 43 9 3 Panel Failure 50 ...

Страница 4: ...erating and maintenance instructions in the literture accompanying the appliance 1 3 2 Be careful to the electrical shock To prevent the damage which might result in electric shock or fire don t expose this TV set to rain or excessive moisture This TV must not be exposed to dripping or splashing water and objects filled with liquid such as vases must not be placed on top of the TV 1 3 3 Electro st...

Страница 5: ...contacts only by applying the following mixture to the contacts with a pipe cleaner cotton tipped stick or comparable non abrasive applicator 10 by volume Acetone and 90 by volume isopropyl alcohol 90 99 strength CAUTION this is a flammable mixture Unless specified otherwise in this service manual lubrication of contacts is not required Capacitors may result in an explosion hazard 5 Do not defeat ...

Страница 6: ...i static can generate can electrical charges sufficient to damage ES devices 5 Do not use freon propelled chemicals this can generate electrical charges sufficient to damage ES devices 6 Do not remove a replacement ES device from its protective package until immediately before you are ready to install it Most replacement ES devices are packaged with leads electrically shorted together by conductiv...

Страница 7: ...ed in the table below Note A note provides information that is not indispensable but may nevertheless be valuable to the reader such as tips and tricks Caution A caution is used when there is danger that the reader through incorrect manipulation may damage equipment loose data get an unexpected result or has to restart part of a procedure Warning A warning is used when there is danger of personal ...

Страница 8: ...or Display 16 7M No of Preset Channels Air 2 69 Cable 1 125 OSD Language English Color System PAL NTSC Audio System DK BG I M L L Audio Output Power Built in W 10W 2 Audio Output Power outer W No Total Power Input W 175W Voltage Range V AC 100 240V Power Frequency Hz 50 60Hz Net Weight KG 6 3 Gross Weight KG 8 4 Net Dimension MM 733x68 5x439mm Packaged Dimension MM 733x200x473mm ...

Страница 9: ...Service Manual 8 Model No 3 Location of Controls and Components 3 1 Board Location B Board A Board No Description A Board Mainboard B Board Power Supply 3 2 Main Board ...

Страница 10: ...Ｆ４ＧＮＤ５ＰＷＲＯＮＯＦＦ６５ＶＳｔａｎｄｂｙ７５ＶＮｏｒｍａｌ８ 5V_Normal 9 ＧＮＤ１０ＧＮＤ１１ＧＮＤ１２１２ＶＮｏｒｍａｌ１３１２ＶＮｏｒｍａｌ Notes J16 Pin 3 Backlight on off The system can turn on or turn off the backlight of TFT LCD Panel through the power supply unit path J16 Pin 5 System power on standby System board will use this pin to control system power J16 Pin 2 Control the luminance of backlight The system can generate th...

Страница 11: ...ｎｎｕｍｂｅｒＳｉｇｎａｌｎａｍｅＤｅｓｃｒｉｐｔｉｏｎ１ＧＮＤ２ＮＣ３ＫＥＹ０４ＮＣ５５ＶＳｔａｎｄｂｙＰＯＷＥＲＦＯＲＲＥＭＯＴＥ６ＧＮＤＧＮＤ７ＩＲＲＥＭＯＴＥＣＯＮＴＲＯＬ８ NC 9 ＬＥＤＧＬＡＭＰＧＲＥＥＮ１０ＬＥＤＲＬＡＭＰＲＥＤ Speaker connector J17 Pin number Signal name Description 1 RSPK RSPK 2 RSPK RSPK 3 LSPK LSPK 4 LSPK LSPK ...

Страница 12: ...No 3 3 Power Board 3 3 1 FunctionDescription Supply power for Main board Panel 3 3 2Connectorde nition ＣＯＮ２０１ＰｉｎｎｕｍｂｅｒＳｉｇｎａｌｎａｍｅ１１２Ｖ２１２Ｖ３ＧＮＤ４ＧＮＤ５ＧＮＤ６５Ｖ７５Ｖ８５ＶＳＴＢ９ＰＯＷＥＲＯＮＯＦＦ１０５Ｖ１１ ON BK １２ ADJ １３ＳＧＮＤ ...

Страница 13: ...Service Manual 12 Model No 3 4 LED Panel LSC550FN07 ...

Страница 14: ... NC INTER USE 34 VB2N V by 1 HSdata lane2 10 GND GROUND 35 VB2P V by 1 HSdata lane2 11 GND GROUND 36 GND GROUND 12 GND GROUND 37 VB3N V by 1 HSdata lane3 13 GND GROUND 38 VB3P V by 1 HSdata lane3 14 GND GROUND 39 GND GROUND 15 SCL_I SCL_I 40 VB4N V by 1 HSdata lane4 16 B_INT B_INT 41 VB4P V by 1 HSdata lane4 17 SDA_I SDA_I 42 GND GROUND 18 NC INTER USE 43 VB5N V by 1 HSdata lane5 19 NC INTER USE 4...

Страница 15: ...r cover faces upward Remove the three screw from the rear cover indicated Then remove the pedestal 4 2Remove the BackCover Remove the these screw indicated on figure above Then remove the back cover from the unit 4 3 Remove the adhesive tape Remove the adhesive tape indicated on the figure above ...

Страница 16: ... 15 Service Manual Model No 4 4 Remove the Main board Disconnected the coupler J2 J16 J17 CN22 Remove the Main board 4 5 Remove the speaker Take out the speaker ...

Страница 17: ...Service Manual Model No 4 6 Remove the remote control take out the Remote Control and Keypad Assembly 4 7 Remove the Power Supply ...

Страница 18: ...Connect one end of a coaxial cable not included to the ANT IN jack on the back of your TV DVD combo then connect the other end of the cable into the antenna or cable TV wall outlet To improve picture quality from an antenna in a poor signal area install a signal amplifier If you need to split the antenna signal to connect two TVs install a two way splitter ...

Страница 19: ...ions IEC female Input impendance 75 unbalanced PC STEPS Be sure both the TV and computer are Power off 1 Connect VGA and audio cable 2 Connect power cord 3 Power on the TV switch to PC mode 4 Power on the PC This sequence is very important AV OUTPU T HDMI2 HDMI1 U SB VIDEO L R VGA R F 18 ...

Страница 20: ...3 98 6 1920 1080 60 67 5 INSTALLATION Subject to material object AV IN AC INPUT VIDEO L R 100 240V 50 60Hz AV OUT VIDEO L R SUPPORTED MODE PC Only for 40 NOTE PC V Freq Hz not more than 60Hz PRESET MODE HDMI RESOLUTION V Freq Hz H Freq KHz 1 800 600 60 37 88 2 1024 768 60 48 36 3 1366 768 60 47 71 4 1280 768 60 47 3 5 1920 1080 60 67 5 19 ...

Страница 21: ...r Cr G B R W R B Blue Pb or Cb G Green Y W R G B R Y W R VIDEO EQUIPMENT W R Y TO AUDIO OUTPUTS TO VIDEO OUTPUTS It can be connected to the following appliances VCR multi disc player DVD camcorder video game or stereo system etc YPbPr can support thesevideo fomats 480i 576i 480p 576p 720p 1080i 1080p Note 1 Video and YPbPr share one audio channel 2 When HDMIport get DVI signal the AV Audio channel...

Страница 22: ...ption of Select Main source menu When the source device DVD player or Set Top Box supports DVI How To Connect 1 Connect the source device to HDMI port of this TV with a HDMI to DVI cable not supplied with this product 2 A separated audio connection is necessary 3 If the source device has an analog audio output connector connect the source device audio output to DVI Audio In port located on the PC ...

Страница 23: ...ce Manual Cable sample Service Manual Model No HDMI Cable not supplied with the product HDMI to DVI Cable not supplied with the product Analog Audio Cable Stereo to RCA type not supplied with the product 22 ...

Страница 24: ...nnect the AC line cord plug to other than the specified voltage Use the attached power cord only Y If the polarized AC cord does not fit into a non polarized AC outlet electrician replace the obsolete outlet Y If you cause a static discharge when touching the unit and the unit fails to function simply unplug the unit from the AC outlet and plug it back in The unit should return to normal operation...

Страница 25: ...RED STANDBY 3 Key board 4 CH CH In TV mode press CH or CH to change the channel up and down In MENU mode press CH or CH to select items 5 STANDBY Press this button to turn the unit ON from STANDBY mode Press it again to turn the set back to STANDBY REAR AV Connections All the terminals are from left to right AC POWER SOCKET A V INPUT YPbPr INPUT Note VIDEO and YPbPr share one audio channel REAR AV...

Страница 26: ...Service Manual Model No 6 3 Setting Up Your Remote Control Note The relevant button doesn t work if TVwithout teletext NICAM MHLfunction 25 ...

Страница 27: ...Service Manual Model No 7 3 Wiring ConnectionDiagram 4 1 3 2 NO Name 1 Connection Wire For Speaker 2 Connection Wire Power For Mainboard 3 LVDS Wire 4 Connection Wire For Remote and Keyboard ...

Страница 28: ...B Skip S k i p OPTION 3 Manual Tuning MENU Back Move OK OK Pres s to chooset hep rogram press blue button to skip this program T heicon will show on t heright sideof t heprogram Chooset heskipped program pres s t hebluebutton again y ou can cancel t heskip Then t heicon will disappear You can search t heTVchannels and fine tunethe channels then storaget hechannels y ou selected Manual Tuning Stora...

Страница 29: ...o volume only availablewhen t heinput signal volumeis t oo large or distortion VIDE O 4 TIME MENU T hefort h itemof t hemenu is t heTIM EMENU You can adjust t heclock power on off time sleep timeetc OK US B Pres s to move press OK button to confirm and pres s to adjust H aier I nnovat ion Life CHANNEL PICTURE SOUND TIME Clock OK Off Time On Time Sleep Timer Auto Sleep PHOTO MUSIC TEXT MOVIE OPTION...

Страница 30: ...list or chooseReturn to back to t hemedia t y peselection menu Pictur e 0021 JPG jafeimao VOB Resolution 720 x 480 Audio Track 1 6 Subtitle 1 11 Program 0 Size 1048404 KByt retur n Return 100 720 480 1080 0021 JPG EXIT Back Move OK Select Close Select t hemedia file by pressing or then t hepreview framewillp op up Press t hebutton to play t hemediafile in full screen When the media file photo musi...

Страница 31: ...lue of user s menu 3 adjust the color temperature and white balance of each signal source 4 SSC to adjust the spectrum for passing the EMC test 5 special set 1 2hour off for Aging test 2 WDT watch dog 3 white pattern set pure color output for the panel used at the checking and aging test for panel 4 reset 5 set the recorder 6 set power on screen display 6 QMAP adjust adjust color quality 7 PEQ set...

Страница 32: ... the software file merg bin from your computer to the USB memory and remove it from computer s USB port Step 2 F W Upgrade 2 1 AC ON 2 2 then input USB press MENU and choose update software and then press OK 2 3 Now you should choose Yes TV begin to update You should reset TV after update Note When Upgrade on the process please don t Power Off 40 ...

Страница 33: ... Max Volume 4 Start Source 5 Start Channel Hotel mode can adjust the maximum volume Hotel mode locking TV signal source Hotel mode locking program channels 6 Start Menu Display 7 Input Source Change Hotel Mode menu is displayed Hotel mode is to display the Source 8 Save to USB TV related equipment will be copied to the system U disk to other machines used for cloning 9 Loaking U disk data will be ...

Страница 34: ...Service Manual Model No 9 Trouble shooting 9 1 Simplecheck 42 ...

Страница 35: ...e sound Check if the backlight of panel is working Yes Check if there is 12V at Pin1 Pin8 in CN22 Yes Change VB1 wire No No Replace the QD8 QD9 check if J16 Pin3 3 3V Pin2 0 7V is normal Yes Change the Power board Change the Mainboard Still having problems Change Panel 1 No ...

Страница 36: ...k if there is sound from the earphone Yes No Check if Pin1 Pin2 of UD4 12V is normal Check the audio input circuit betweenUD4 and U48 Check the Mute circuit between UD4 and U48 Yes No Check if there is output at Pin1 Pin2 of J17 Check the circuit between UD4 and J17 Check the speakers Still having problems Change Mainboard 2 ...

Страница 37: ...ture Check if there is voltage in No J16 Pin12 13 12V Pin6 5V Pin5 2 5V Pin3 4 5V Change the Power board Yes No Check if there FLASH U18 has the right software and work well Update the software Yes Change Mainboard 3 ...

Страница 38: ...und system is correct No Change sound system For ease of use recommend that customer format the picture and sound settings in the automatic option Still having problems Update the software and make the reboot or change the Mainboard 5 ...

Страница 39: ...s in other channels Yes checkout of picture and sound system No Check out of picture and sound system of this channel No Change the channel to the right sound system PAL M N PAL D K Yes Referto relative instructions in the Manual for coloradjust Still having problems Updata the software and make the reboot or change the maiboard 47 ...

Страница 40: ...he right software and work well 5 Verify if the Y100 Crystal has the right frequency v Panel not work v 1 check if the voltage input and output of boost IC is working normally v 2 Verify if the Mainboard output the right On Off signal to power board v 3 Verify if the Mainboard output the Vby1 singal to panel T con board v 4 Verify if the software is the right version of this model v 5 Change the V...

Страница 41: ...check if the power supply if working normally check if the power supply of 5Vstandby is working normally v 3 check if the POWER ON OFF voltage is high pressure v 4 check if the power supply have 12V 5V output v Check if Main board Vby1 wire Panel are in good condition 49 ...

Страница 42: ...lead cracking ACF bonding short Awful environment and something electric ente into LCD Mis align between TCP Panel Panel failure TCP failure V Dim Vertal gray line V L D Vertical color line light or dark forever H B D Horizontal bar H Dim Horizontal gary line H L D H o r i z o n t a line light or dark forever 9 3 Pannelfailure Failure Mode racking r and ...

Страница 43: ...r Bubble Bladder in Polarizer Bladder between Polarizer and top glass Polarizer Scratch Polarizer Scratch Tine or rigidity arose F M i n s i d e Polarizer E y e w i n k e r i n s i d e Polarizer Eyewinker inside Polarizer Circuit Abnormal Display Abnormal Display 1 Chip lose action 2 IC ahort or jointiog bad 3 Pannel and vsc connect bad Flashing B r i g h t a n d d a r k display alternately ...

Страница 44: ...display Mayb e caused by surge current and EDS Black Screen B L normal only Black screen display FIIcker Crosstalk LCD Vcom imbalance Abnormal Color Only color abormal Capacitance improper bring crosstalk inside LCD pannel Abnormal Color Only color abnormal 1 Chip lose action 2 IC s h o r t o r jointion bad 3 Pannel and vsc connect bad ...

Страница 45: ...lose action Connect badness between wire and electrode B L dark B L brightness darker than normal Connect badnessShort between wire and electrode B L wire damaged B L wire damaged Operation abnormal or systemic noise B L wire open Without backlight Operation abnormal or systemic noise B L shut down B L shutdown in sometime Shor t bitwee n lamp housing and wire Becaus e consume power too much F M F...

Страница 46: ...ription Phenomena Failure cause Mechanlcal or B L Light leakage Brightness at bottom of LCM brighter than normal B L unit badness Uniformity B L brightness asymmetric Sheet in B L unit is uneven Mount hole Lack screw or screw damage Lack screw Screw damage ...

Страница 47: ...Sincere Forever Haier Group Haier Industrial Park No 1 Haier Road 266101 Qingdao China http www haier com Printed in China ...

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