Haier LE42U6500TF Page 53 Service Manual Download

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Service Manual

Model No.:

- 63 -

Failure Mode

Part

Name

Description

Phenomena

Failure cause

Circuit

White Screen

B/L normal,
only white screen
display

M a y b e c a u s e d
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
i m p r o p e r b r i n g
crosstalk inside
LCD pannel

Abnormal Color

Only
color abnormal

1.Chip
lose action
2 . I C s h o r t o r
jointion bad
3.Pannel and vsc
connect bad

Summary of Contents for LE42U6500TF

Page 1: ...s 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 injury or death WARNING LE42U6500TF Model No ...

Page 2: ... 4 1 Remove the Pedestal 6 8 8 8 8 11 14 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 5 Installation Instructions 17 5 1 External Equipment Connections 17 5 2 HDMI Connections 21 6 Operation Instructions 24 6 1 Front Panel Controls 6 2 Back Panel Controls 6 3 Universal Remote Control 24...

Page 3: ...le shooting 51 9 1 Simple Check 51 9 2 Main Board Failure Check 9 3 Panel Failure 52 61 8 1 How to enter into the factory model 8 2 How to update software 48 49 8 Measurements and Adjustments 37 8 3 How to enter into the Hotel Model 50 ...

Page 4: ...instructions in the literture accompanying the appliance 1 3 2 Be careful to the electrical shock 7R SUHYHQW GDPDJH ZKLFK PLJKW UHVXOW LQ HOHFWULF VKRFN RU UH GR QRW H SRVH WKLV 79 VHW to rain or excessive moisture This TV must not be exposed to dripping or splashing water DQG REMHFWV OOHG ZLWK OLTXLG VXFK DV YDVHV PXVW QRW EH SODFHG RQ WRS RI RU DERYH WKH 79 1 3 3 Electro static discharge ESD Som...

Page 5: ... UHFHLYHU RQO WKH WHVW WXUHV VSHFL HG LQ WKLV VHUYLFH PDQXDO CAUTION R QRW FRQQHFW WKH WHVW WXUH JURXQG VWUDS WR DQ KHDW VLQN LQ WKLV UHFeiver 3 Do not spray chemicals on or near this receiver or any of its assemblies 4 Unless specified otherwise in this service manual clean electrical contacts only by applying the following mixture to the contacts with a pipe cleaner cotton tipped stick or compar...

Page 6: ... static electricity Such components commonly are called Electrostatically Sensitive ES Devices Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor chip components The following techniques should be used to help reduce the ncidence of component damage caused by static by static electricity 4 Use only an anti static type solder removal device So...

Page 7: ...ibed 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 persona...

Page 8: ...isplay 16 7M No of Preset Channels OSD Language English Color System PAL NTSC SECAM Audio System DK BG I M L L Audio Output Power Built in W W 2 Audio Output Power outer W No Total Power Input W 5W Voltage Range V Power Frequency Hz 50 60Hz Net Weight KG Gross Weight KG Net Dimension MM Packaged Dimension MM AC 100 240V 510 DTV 100 ATV 892 4x63x529mm 1070x170x680mm ...

Page 9: ... 08 Service Manual Model No 3 Location of Controls and Components 3 1 Board Location No Description 3 2 Main Board A Board A Board Mainboard B Board Power Supply ...

Page 10: ...an display 3 2 2 Connector definition Main board connector Keypad and remote connector CN508 Speaker connector CN601 Pin number Signal name Description 1 RSPK RSPK 2 RSPK RSPK 3 LSPK LSPK 4 LSPK LSPK Pin number Signal name Description 1 LED_R LAMP RED 2 LED_G LAMP GREEN 3 4 IR REMOTE CONTROL 5 GND GND 6 5V POWER FOR REMOTE 7 KEY1 KEY0 10 GND 8 9 NC STANDBY ...

Page 11: ...3 4 LED Panel 10 Service Manual Model No 9 3 ...

Page 12: ... LVDS Clock 7 GND Ground 22 R1CLK_P LVDS Clock 8 GND Ground 23 GND Ground 9 LVDS SEL LVDS Option 24 R1D_N LVDS Signal 10 NC NOTE1 25 R1D_P LVDS Signal 11 GND Ground 26 GND Ground 12 R1A_N LVDS Signal 27 TCON_WP I2C 13 R1A P LVDS Signal 28 SCL_I I2C 14 GND Ground 29 SDA_I I2C 15 R1B_N LVDS Signal 30 GND Ground Note 1 No connection These PINS are used only for the product of SAMSUNG DO NOT CONNECT t...

Page 13: ...WKDW UHDU FRYHU faces upward 5HPRYH WKH VFUHZ IURP WKH UHDU FRYHU LQGLFDWHG ZLWK ż 7KHQ UHPRYH WKH SHGHVWDO 4 2Remove the Back Cover 5HPRYH WKHVH VFUHZ LQGLFDWHG RQ JXUH DERYH E ż 7KHQ UHPRYH WKH EDFN FRYHU IURP WKH unit Service Manual Model No 12 4 1 Remove the Pedestal 4 3 Remove the adhesive tape ...

Page 14: ...4 4 Remove the Main board 5HPRYH WKH 0DLQ ERDUG Service Manual Model No 13 CN202 CN800 LVFRQQHFWHG WKH FRXSOHU CN601 CN508 4 5 Remove the speaker Take out the speaker PCN3 CN805 ...

Page 15: ...4 6 Remove the remote control take out the remote controlboard Service Manual Model No 14 ...

Page 16: ...l 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 DPSOL HU If you need to split the antenna signal to connect two TVs install a two way splitter Service Manual Model No 15 ...

Page 17: ...o cable 2 Connect power cord 3 Power on the TV switch to PC mode 4 Power on the PC This sequence is very important PC Note Aerial connections IEC female Input impendance 75 unbalanced The TV appearance subject to material object 16 USB HDMI2 HEADPHONE COMMON INTERFACE CI PC AUDIO HDMI1 ARC VGA RF ...

Page 18: ... 60 60 31 47 37 88 RESOLUTION V Freq Hz H Freq KHz 1024 768 60 48 36 PRESET MODE HDMI 1 2 3 800 600 1024 768 60 60 37 88 48 36 RESOLUTION V Freq Hz H Freq KHz 1366 768 60 47 71 4 1280 768 60 47 3 5 1920 1080 60 67 5 4 5 1366 768 60 47 71 1280 1024 60 63 98 6 1920 1080 Only for 40 60 67 5 17 ...

Page 19: ...een Y B Blue Pb Cb W White AUDIO L R Red AUDIO R Pr Cr Y Yellow VIDEO Amplifier CVBS DVD Player or other machine with YPbPr YCbCr G R B AC INPUT 100 240V 50 60Hz YPbPr VIDEO L R DIGITALAUDIO OUTPUT COAXIAL SCART USB HDMI2 HDMI1 ARC HEADPHONE COMMON INTERFACE CI PC AUDIO VGA RF Service Manual Model No 18 ...

Page 20: ... 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 port How To Use If the sour...

Page 21: ...Cable sample 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 Service Manual Model No 20 ...

Page 22: ... Use the attached power cord only Ŷ I WKH SRODUL HG FRUG GRHV QRW W LQWR D QRQ SRODUL HG RXWOHW GR QRW DWWHPSW WR OH RU FXW WKH EODGH W LV WKH XVHUCV UHVSRQVLELOLW WR KDYH DQ electrician replace the obsolete outlet Ŷ I RX FDXVH D VWDWLF GLVFKDUJH ZKHQ WRXFKLQJ WKH XQLW DQG WKH XQLW IDLOV WR IXQFWLRQ simply unplug the unit from the AC outlet and plug it back in The unit should return to normal oper...

Page 23: ...the set back to STANDBY 3 2 30 30 1 Service Manual Model No 6 Operation Instructions 6 1 Front panel controls 22 Rear Side Sockets SOURCE MENU V V CH CH Standby 1 2 3 4 5 USB HDMI2 HDMI1 ARC HEADPHONE COMMON INTERFACE CI PC AUDIO VGA RF 1 YPbYr 2 input 3 4 input 5 digital audio output input AC Power Source 6 input output DIGITAL AUDIO OUTPUT COAXIAL SCART L R AUDIO VIDEO 7 input USB input 8 9 HDMI...

Page 24: ...ess to display the channel information In teletext mode press to revealthe hidden information Press to open the channel list In teletext mode press to switch the image to top bottom or full 3D WORLD These models do not support 3D feature Press to close the on screen menu In teletext mode press to hide the text 16 17 18 19 20 21 22 23 24 25 26 Press to select previous or next file previous next Pre...

Page 25: ...tically displayed successively This key is used to stop or resume sub page acquisition The indication appears top left To freeze the page To display or hide the concealed information games solutions This is used to call or exit teletext modes The summary appears with a list of items that can be accessed Each item has a corresponding 3 digit page number If the channel selected does not broadcast te...

Page 26: ...Service Manual Model No 7 3 Wiring Connection Diagram 36 1 2 4 3 NO Name 1 2 3 4 Connection Wire For Remote and Keyboard Connection Wire For Speaker LVDS Wire Connection Wire Power For Panel ...

Page 27: ...ugal Poland Italy Hungary Luxembourg Norway HOME or Shop modes 1 When the unit is turn on for the very first time it will show Initialization set up menu After the OSD language is set the user can choose between shop mode and home mode When the screen shows the following setting menu and the cursor stays on the home mode choice press to adjust and OK to enter the menu Select the usage mode shop mo...

Page 28: ...nd Italy Hungary Luxembourg Norway 5 Channel tuning will commence This operation may take up to minutes The display will show the progress of the tuning and the number of channels found 6 If you want to skip the ATV tuning press the MENU button to interrupt the tuning half way A pop up screen will be displayed press the button to select YES to confirm You will then go straight to DTV tuning You ma...

Page 29: ...This operation may take up to The display will show the progress of the tuning and the number of channels found 7 If you want to skip the ATV tuning press the MENU button to interrupt the tuning half way A pop up screen will be displayed press the button to select YES to confirm You will then go straight to DTV tuning You may repeat the above step if you also want to skip the DTV tuning An install...

Page 30: ...Press the buttons to select DTV Manual Tuning and then press the OK button 3 The CADTV Manual Tuning screen will pop up Press the buttons to select Frequency Symbol ks s QAM Type QAM press the OK button to commence the search of that channel When the signal has been tuned the picture and signal strength will be displayed on the screen 4 Press the MENU button to return back to the main menu 5 Press...

Page 31: ...n the input signal volume is too large or distortion 4 TIME MENU The fourth item of the menu is the TIME MENU You can adjust the clock power on off time sleep timer etc The second item of the MENU is PICTURE MENU You can adjust picture effect here such as contrast brightness etc 2 PICTURE MENU Operation Move Skip Picture Mode Standard Contrast 50 Brightness 50 Color 50 Sharpness 50 Tint 50 Color T...

Page 32: ...een made to the TV for example no channel or volume changes the TV will start the automatic power down sequence And pop up window will appear on screen After 150 seconds the TV will automatically switch to standby To override the automatic shutdown press any button on the remote control 2 To cancel the automatic power down On the Option Menu select Automatic power down 4H Press left right A pop up...

Page 33: ...ecord Limit is 6 hour if the space on the disk is big enough If the space is not big enough the record time should be shorter depends on the room on the device During the check PVR File System checking please do not take any other operation until it finished The recordings must be done with the TV PVR system It can only be played in the same TV not in any other kind of device computer DVD etc whic...

Page 34: ...con still on the left top It will disappear until you click stop The program recorded on the USB will be saved in the folder _MSTPVR on the device 1 The USB storage size can be between 128MB and 500GB in size but for practical use 2GB to 500GB is recommended 2 Video may become pixelated when Video bit rate is too low This can be caused by connecting a USB extension cable instead of plugging the US...

Page 35: ...at Select to format the USB device and allocate the amount of space for the Time Shift function The format process will take at least 2 minutes Please do not turn off the power or remove the USB device during formatting During formatting a speed test will be done on the USB device If it fails it means the USB device may not support the Time Shift function Record a paused DTV program to USB storage...

Page 36: ... when Video bit rate is too low 7 Not all USB devices are compatible The USB hard disk drive electricty should be 500MA Below is a list of recommended USB drvies Models that are not listed may be compatible but it is not guaranteed to work 8 This feature is not available for all digital TV such as scrambled or audio only channels San Disk Extreme Contour USB Flash Drive 8GB SDCZ8 8192 E75 San Disk...

Page 37: ...tton to exit the control bar except for music You can adjust the audio track or program in the Info menu while Playing the video file Choose the Info icon and press OK can display the Info MENU USB playback is supported for the following photo file formats JPEG JPEG format files with the extension jpg BMP files with the extension bmp PNG files with the extension png USB playback is supported for t...

Page 38: ...o 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 sound EQ 8 sw information to check the sofeware information 9 UART DEBUG Access to serial port a...

Page 39: ...e You should reset TV after update Note When Upgrade on the process please don t Power Off Haier MSD308C F W upgrade with USB SOP Step 1 Ready for F W Upgrade 1 1 Prepare a USB memory 1 2 Copy 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 8 2 How to update software ...

Page 40: ...hannel 6 Start Menu Display 7 Input Source Change 8 Save to USB 9 Loaking 10 Volume Default Hotel mode switch Panel key lock Hotel mode can adjust the maximum volume Hotel mode locking TV signal source Hotel mode locking program channels Hotel Mode menu is displayed Hotel mode is to display the Source U disk data will be cloned into the machine TV related equipment will be copied to the system U d...

Page 41: ...Service Manual Model No 9 Trouble shooting 9 1 Simple check 51 ...

Page 42: ...e is 12V at Pin35 in CN202 No Replace the QD6 Yes Check if there is 43V at PEC8 Yes No test if PU6 Pin5 3 3V Pin9 normally Change LVDS wire No Replace PU6 Check if PQ6 PD14 PR46 works normally Yes Replace PQ6 PD14 No Service Manual Model No 9 2 Main board failure check 52 12V ...

Page 43: ... is sound input signal Check the input source Yes No Check if there is signal at C607 and C605 Check if there is signal at C245 and C247 No Yes Check if there is signal at LD5 LD7 LD8 LD9 Change U201 Check the speakers Yes Change UD3 Check LD3 voltage 12V LD3 Else Service Manual Model No 53 ...

Page 44: ...3V Change Q101 No Yes Check C138 1 15V Check CD85 1 5V Check R603 3 3 Change U107 Change UD7 Change Q101 No Yes Change mainchip U201 No Change Mainboard Still having problems No sound No picture NO LED indicate Check PD15 24V Check PD3 12V Yes No Change Mainboard Service Manual Model No 54 ...

Page 45: ...oor sound Change sound system No Update the software and make the reboot or change the Mainboard Still having problems For ease of use recommend that customer format the picture and sound settings in the automatic option Service Manual Model No 55 ...

Page 46: ...r to relative instructions in the Manual for color adjust No No Yes Yes Check out of picture and sound system of this channel Change the channel to the right sound system PAL M N NTSC M No color for some channel program black and white Still having problems Updata the software and make the reboot or change the maiboard Service Manual Model No 56 ...

Page 47: ...place PD3 How to know whether the Power board is broken Still having problems Check if Main board LVDS wire Panel are in good condition No Reconnect the power cord with the outlet or Power board Yes EC805 whether have 300V No F800 or D803 D804 D805 D807 Yes Service Manual Model No 57 ...

Page 48: ...an not T2 signal Still having problems change the maiboard No Change FB3 Yes Change U4 NO Change mainchip U201 No Change Mainboard Check C60 1 2V Check C58 3 3V Yes No Change U7 Service Manual Model No receive 58 ...

Page 49: ... U6 has the right software and work well 5 Verify if the Y1 Crystal has the right frequency Panel not work 1 check if the voltage input and output of voltage boost IC of the backlight is OK 2 Verify if the Mainboard output the right On Off signal to power board 3 Verify if the Mainboard output the LVDS singal to panel T con board 4 Verify if the software is the right version of this model 5 Change...

Page 50: ...ck if 5Vstandby of the power board part is functioning normally 3 Check if voltage of the POWER ON OFF of the power board part is on the high level voltage 4 12V 5V output check if there is 12V 5V output on the power board 5 Check if Main board LVDS wire Panel are in good condition 60 ...

Page 51: ...or cracking Dim or L D TCP Sunken TCP lead cracking ACF bonding short Awful environment and something electric enter into LCD Mis align between TCP and 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 l line light or dark forever ...

Page 52: ...er 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 Eyewinker inside 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 62 ...

Page 53: ...display Maybe 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 I C s h o r t o r jointion bad 3 Pannel and vsc connect bad ...

Page 54: ...ss 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 Short bitween lamp housing and wire Because consume power too much F M F M inB L white balck Rotundi...

Page 55: ...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 ...

Page 56: ...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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