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SERVICE MANUAL LCD TV LCD-32E30A LCD

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9. nce Lr pe pom T E A quessy vJoeazr d91 Removing or Installing the Stand Cautions 1 Carefully handle the unit during setup and consult authorized service personnel to ensure successful installation 2 Before performing work spread cushioning over the base area to lay the Display on This will prevent it from being damaged 3 Disconnect the AC power cord firstly To remove the stand if will mountin 1 Place the LCD TV screen facing down on a flat surface place where maintained with soft materials such as a blanket for protecting the display screen 2 Release screw in 4 holes with screw driver To install the stand 1 Place the LCD TV screen facing down on a flat surface place where maintained with soft materials such as a blanket for protecting the display screen 2 Secure the stand to the TV with 4 screw Do not remove the stand from the TV unless using an optional bracket to mount it The appearance of the unit may differ from the actual one AU SERVICE MANUAL CHANGE LIST DATE Page VERSION CHANGE ITEM 24 June 2009 53 01 Add power code on APPENDIX A of each models Page 1 02 Change to CHASSIS NO SSA42UT 00 26 August 2009 EE Page 76 02 APPENDIX A Main
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22. MCU Burn In P USBFA Upgrade P 200 Hours 22 Min Source calibration performed automatically when finished that will show OK Repeat step 2 to do VGA input sources ASTRO 859 signal setting to1024X768 60Hz PG1 mode Timing 856 and Pattern 921 Gray Repeat step 2 to do TV input sources of Video1 Composite AV ASTRO 859 signal is set to Timing 969 PAL system and Pattern 969 color bar 4 2 Color Temperature Adjustment amp Check 4 2 1 Set the signal generator to RGB 1024 768 60HZ ASTRO 859 PG1 856 Level 0 56V 80 Full white pattern 4 2 2 Press up or down key of remote control to select Cool Press TOK key to enter the item R G B drive values are set for COOL Medium Normal and WARM independently 4 2 3 Select Cool m 7 Cool spec Cool Color Temperature Color Temperature x 0 267 0 010 0 271 0 010 If the x and y value are larger than specification Decrease Green drive from default value Increase Blue drive from default value If the x or y or both x and y value is are smaller than specification Decrease Blue drive from default value According to a x and y value please following adjustment of 1 or 2 1 If x value is higher than spec Increase Green drive from default value Increase Blue drive from default value 2 If y value is higher than spec Decrease Green drive from default value 4 2 4 Select Medium Normal Normal Color Temperature Normal spec
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25. SANYO FILE NO SERVICE MANUAL LCD 32E30A PRODUCT CODE No 168234766 LCD TV CHASSIS NO SSA32UT 00 LCD 42E30FA PRODUCT CODE No 168234827 CHASSIS NO SSA42UT 00 REFERENCE No SM0945003 02 CONTENTS 1 Safety precautions pp 1 2 Alignment instructions and method of software upgrading 5 3 Working principle analysis of the 18 4 BIOCK bte dt d bod udo ub RR 19 9 block diagra vvv 21 5 Wiring diagram ee 25 7 Troubleshooting guide ete ete ede 29 8 Schematic diagram sooo eu elas 33 APPENDIX A Assembly list APPENDIX B Exploded View Removing or Installing the Stand Wall mounting instructions Attention This service manual is only for service personnel to take reference with Before servicing please read the following points carefully 1 Safety precautions 1 Instructions Be sure to switch off the power supply before replacing or welding any components or inserting plugging in connection wire Anti static measures to be taken throughout the entire production process a Do not touch here and there by hand at will b Be sure to use anti static electric iron C Its a must for the welder to wear anti static gloves Please refer to the detailed list before replacing components that have special safety requi
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30. Jnzv 9080 9212 ANC gt 311 gt 6090 8091 anp gt yjnl0 gt 2090 9001 JoloedeD oiueJao ON 4 0149 01296847 jeubis lepowu Mzr god 1S JO Justus nba sjuauodLuos pelels eswueuyo sselun seloN Oldo APPENDIX A assembly LCD 32E30A Version 01 PARTS No DESCRIPTION REMARK cLcG10102v541 ISPK SET SSA32 42I SET SSA32 421 CLAC6VT3200R1 RR 32 MODU CLACGVT3200R2 POWER ASS Y 1 2 source femme esros 3 SSS saveomoum ll ee 17 CLHB4SA320001 for accessories 19 CLHK3TW26000 ICLHK3TW26000 IPEBAG STAND PEBAG STAND STAND LCD 32E30A Assembly APPENDIX A assembly LCD 42E30FA Version 01 arr et P puesemes mxroeer E e LCD MODU T420HWO4 V2 BR 42 Ls ee oP powers Le esee 3 Ln E prse sm 1
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33. x 0 281 0 010 y 0 288 0 010 4 2 5 Select Warm WARM spec x 0 301 0 010 y 0 310 0 010 Adjust G drive GREEN or B drive BLUE to set x and y above 4 2 6 Exit Factory Mode After finish adjusting color temperature press BACK to exit factory mode 8 5 Items of Factory menu Vendor may customize design and add adjustment items Factory menu as far as all required items are included Press up and down key can move high light item from Color Temperature WARM gt Color Temperature Medium gt Color Temperature Cool gt Timer Clear gt Preset Channel gt NVRAM Clear gt Full Power gt Source Calibration gt Reset to Default gt RF Burn In gt RF F W Upgrade gt MCU Burn In gt USB F W Upgrade The NVRAM Clear and Reset to Default items will have a check dialog yes or no to do or not Push OK key can select high light item function Press right key can adjust value Display model name firmware version and released date on bottom Factory FAM wer 0 28 14 2009 14 22 18 wer 1 00 Color Temperature Color Temperature Color Temperature Timer Clear Preset Channel Clear Full Power Source Calibration Resetto Default RF Burn In RF Upgrade Burn In USE FAV Upgrade 200 Hours 22 5 1 Cool Press up or down key can select high light item function Press OK key to enter the item Following data for color temp
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37. assembly LCD 42E30FA Ref No item 1 4 5 10 Page 12 02 Add function sentence page after page 11 AC POWER MODE MUSIC MODE SETUP RESET BAUD RATE 04 September 2009 Page 19 20 02 Add the 42 model after 32 the Block Diagram Chapter Page 02 Update and combined the schematic diagram 33 50 electron 32 42 Delete from page 50 to 67
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50. Press Right key to enter the item To avoid a mistake F W Upgrade process after factory setting is done This item will have a check dialog yes or no to do the upgrade or not 10 5 12 MCU In Press Right key to enter the item To avoid a mistake MCU Upgrade process after factory setting is done This item will have a check dialog yes or no to do the upgrade or not 5 13 USB F W Upgrade Press Right key to enter the item The function can be switched On Off the update of the boot code And the F W can be updated on USB by pressing Right key 6 Dealer Mode Function DEALER MODE The Dealer mode has 9 different functions VOLUME LOCK TUNING LOCK START MODE OSD RC AC POWER MODE MUSIC MODE SETUP RESET and BAUD RATE HOW TO USE DEALER MODE This function limits the maximum volume value in the range to 32 Press and hold MENU button on side control and then press INFO button on remote control to display Dealer Mode menu 2 Press A buttons to select desired item 3 Press OK button to confirm the selection VOLUME LOCK TUNING LOCK START MODE osD RC AC POWER MODE MUSIC MODE SETUP RESET BAUD RATE VOLUME LOCK This function limits the maximum value of the volume The range is set from 0 to 32 If the function is set to OFF the volume won t be limited in range TUNING LOCK This function locks all channels to prevent user adding removing TV or DTV channels If the function is set
51. S 6021 EN Dra 7829 e zozn 0 W0 O3 9CH 61106002 VS ids _ A A 529 S yb 954 904 TIP 220600 5 0294779 i Segal EAS 1 i 19 zo te sem 155 pus p I LN ds 49 420 oezo E 19594 ly 19 6224 SCA EEA SEM og ds dsl Sine LS 0 coa XLULHVO iy 8204 Va IR ET noza 0 2604 Xuoluvn O 1921 XELINVA EEDA ig paci 0 1 101 DS D eo pg Viza rw YNI Haon ozi WAOX TEL wart ym Arum 9HQv9 9 Zaz 69 vivalozi 9 69 10192 2 192 gt INR 42 con LES 02004 we von 1 x1009218 27004 0194279 E Oo 1591785 99 uorado 210136 TO teu o AA 51 9 9 V 0 96 7 Naogsn 0 1208 VI1VG0OZI E 1 Xu LLYN 710008 zu zz E EDOA 0194279 _ OL OGE LENIN er 02902 9 ABPSOSZM 6924 892 1020 WAC JI m 724 Oldo 33V pay 3 8 8 8 dM 2 N3M Xu u 6 dv pg d Oldo dar os A anyo rss oldvn 07942 90498279 049479 9 NO 097 lt lt SE Zed Oldo V 59 145 sib L 13075
52. U Press MENU button to open the OSD MENU and then press 4 buttons to select Function 2 Press A buttons to select SSU function and press OK button to enter the setting 3 Under the SSU function press A buttons to select the type of update code on the OSD MENU 4 Press the 4 buttons to change the selected type Note The SSU function requires activation of a START command with the OK button Allow system software update The update function is controlled by the Allow system software update item The system will detect from the firmware whether the code is the latest version or not In this setting the update function will always detect the latest version at anytime Update Function Description Turns the auto detect function off Detects latest version at anytime 16 Viewer Prompt to Update Countdown function is in the Viewer Prompt to Update item This updates time count Under this setting if there is no new version the message No new software version found will display otherwise the system will directly perform firmware update and show update status in the OSD window Countdown Function System will execute a firmware update after countdown ON Will prompt user a new version is available but wont execute updatel by itself After countdown will turn off prompt Note When a firmware update is available the system will execute the update after waiting abou
53. ces up to 400 kb s One IR Receive with hard N are demodulation Guest bus interface e SPI interface Device Unique Chip ID e 128 bit device unique secret key Memory Interface Unit High performance 32 bit DDR2 interface 400MHz Up to 3 2GByte second peak memory throughput Process Technology 80 nm CMOS Power 1 1 V core voltage 1 8 V Memory I F 3 3 I O Packaging 35mm x 35 Plastic Ball Grid Array package 632 BGA 5000500000 21 2 FQD1116ME DVB T Analog hybrid terrestrial video module A bl D gt 262 8 Ei Y Ste gt HH X C2 i RF input is ae IZAH X BA Saw Analog 4 Demodulator O fJ 4 Digital ess 1 Digital Amplifier SIH D em t orti E E Acc 33 SW MOPLL pow 5 8 dabo tt 3 2 5V 5 5 sv R o 2 5 11 1213 2174 15 1617 19 20 21 24 Fig 1 Block diagram 3 WJE6353 Nordig Unified DVB T COFDM Terrestrial Demodulator for PC TV and Hand held Digital TV DTV RF levelin 7 04 ADC 0 Pilot amp Symbol amp bit baseband channel de interleaver IF in o amp processor amp demapper IF AGC Cartier Stream o
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55. d in a strong case before the transportation or handling 2 12 For the storage make sure to put it in a place where the environment can be controlled so as to prevent the temperature and humidity from exceeding the limits as specified in the manual For prolonged storage it is necessary to house it in an anti moisture bag and put them altogether in one place The ambient conditions are tabulated as follows Temperature Scope for operation 5 35 C Scope for storage 0 40 C Humidity Scope for operation 0 90 Scope for storage 0 90 2 13 Display of a fixed picture for a long time may result in appearance of picture residue on the screen as commonly called ghost shadow The extent of the residual picture varies with the maker of LCD screen This phenomenon doesn t represent failure This ghost shadow may remain in the picture for a period of time several minutes But when operating it please avoid displaying still picture in high brightness for a long time 3 Points for attention during installation 3 1 The front panel of LCD screen is of glass When installing it please make sure to put it in place 3 2 For service or installation it s necessary to use specified screw lest it should damage the screen 3 3 Be sure to take anti dust measures Any foreign substance that happens to fall down between the screen and the glass will affect the receiving and viewing effect 3 4 When dismantling or
56. firmware file and press button BNO panel i i d SSA26U ecc Y 5 32 Baud Rate 115200 2 Am Image Path EAEL Chivas sanyo W sanyo 8545 0223 10 13 Es Update boot sector Update through UART boot strap Cancel 5 To select down pattern that will show the waiting for ping message then you can turn on the power by pressing DC Power on button 49 iDev Zoran Development Environment down Image Path TRALIA MODEISOFTWARE SETTINGISOFTWARE UPDA Waiting for ping P Dev Zoran Development Environment Download Image COMI Image Path DUK Tibuilt smagestavo pansiSSA 320 ecc Uploading 8 214016 2664960 Version 1 04 for 15 7 When the update is finished that will show the Close pattern please press the button to close the tool of the RS232 7 Zoran Development Environment Download Image COMI Image Path DNK Tibuilt images auo_panel SSA32U ecc Flash programming SUCCESS Reset the Verson 1 04 for HDTY 9 SSU F W Upgrade method DTV Only The SSU function system software update can auto detect current software versions through three sub functions i e update function countdown function and manual function Update method relies on new code sent from an assigned DTV channel How to enter the SS
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58. heck each Function of TV station leaking analog control etc Check the output of earphone and speaker Input AV SVIDEO signal and check the function Input HD signal and check the function of YPbPr Input VGA signal and check if the display is normal check the function analog control horizontal vertical center etc Input HDMI signal and check if the display is normal check the function analog control horizontal vertical center etc Preset ex factory Check the accessories and packing Fig 1 adjustment flow chart 4 Adjustment instruction At any input source then press the LEFT key BACK key and Ok key orderly by the remote control to enter factory mode During Factory menu if MENU First layer or BACK key is pushed system will exit factory mode 4 1 Source Calibration 4 1 1 Set the signal generator to input sources Video3 on LCD TV ASTRO 859 signal setting to1080i PG1 mode Timing 972 and Pattern 969 Color Bar calos 4 1 2 Entering into factory Mode Press down key of remote control to select Source Calibration Press RIGHT key to enter the item Factory Mode wer 0 28 AU032 14 2009 14 22 18 wer 1 00 Color Temperature Color Temperature 1 Color Temperature 1 Timer Clear Preset Channel Clear Full Power Source Calibration Start Reset to Default 7 RF Burn In RF Upgrade bh
59. ifier TAS5706 amplifying then sent to speaker About Earphone output MSP4410K will be sent analog signal to earphone amplifier TPA6110 then output to Earphone 4 HDMI signal flow Three HDMI video signals via switcher Sil9185 are directly fed to the master control IC ZR39670HGCF to digital decode image scale then output LVDS drive level for panel display HDMI audio signal via decoder built in ZR39670HGCF is transform into digital 125 signal by scaler IC and sent to MSP4410K to bass adjust and volume control the sound signal will sent to digital amplifier TAS5706 amplifying then sent to speaker About Earphone output MSP4410K will be sent analog signal to earphone amplifier TPA6110 then output to Earphone 18 61 8 ino WOM d 3 24 3 o HOLINOW woe cootc barre aes MOLFFASHI wow daa i 094915 5330 1 a ce zorg WO GEL ein T Woy daa DD oper ene x ep npu NOIS mdu WSZADOFDELSLOGSA MB LANZE Ad Od A 104400 AHVFOOSCN oad VIGA 19 WES 145 je os Now OZ _ SOL gt 1 DI us s2 AMICUS LOSPIA ESEJIMA E L CIC 4 pedAey XL ZEZSY 1018 npoureg
60. iming Chart Signal mode Signal Horizontal Frequency KHz Dot clock Frequency MHz Resolution Vertical Frequency Hz name 0 0 720 1440 x480 59 94 15 73 5 5 was a m 7 7 7 7 sensn 1 mom 95 5 well ww ws 5 7 4 VGA terminal Input VGA signal VG848 signal generator separately input the signals listed in table5 and check the display and sound If the image is deflection of the Horizontal and vertical select Menu gt Setup gt Auto Adjust to perform auto correct Table5 VGA signal format Signal mode Horizontal Frequency KHz Dot clock Frequency MHz VESA 640x480 31 47 25 18 12804768 60 47 39 68 25 13 7 5 HDMI terminal Input HDMI signal VG849 signal generator separately input the signals listed in table4 and table5 and check the display and sound 32 KHz 44 1 KHz 48 KHz at any situation power on channel switch and format convert etc 7 6 other functions check a Check the turn on turn off timer sleep timer picture sound mode OSD stereo and analog TV Teletext etc 8 Software instruction 1 05 5232 Tool and RS 232 male to female cable Follow below connecter function with PC and LCD TV Sow 2 To connect the RS 232 cable male terminal to TV set RS 232 service port Version 1 04 for HDTV 14 4 Setting the Baud Rate to 115200 and select the update
61. l power is switched on If LCD TV still does not produce an image re start the external equipment If the image still does not appear unplug LCD TV from the extemal equipment and check the extemal equipment The problem may be with your graphics controller rather than with LCD TV When you reconnect LCD TV remember to tum the external equipment and TV off before you power up LCD TV Power the equipment back on in order of LCD TV and external equipment 6 If the problem still exists check the following chart Try these Solutions Plug the LCD TV into the AC outlet NO POWER Press POWER button on SIDE Control or on Remote Control to turn on the LCD Check the POWER Indicator If the indicator no light it indicates the LCD TV has a problem Check the batteries Make sure nothing is obstructing the Remote Receiver and the Remote Control RON Remote Control Make sure you are not too far from the LCD TV when using the Remote Control does not work Maximum operating range is 16 4 bm Is direct sunlight or strong artificial light shining on the LCD TV s Infrared Remote Receiver Eliminate the light source by closing curtains pointing the light in a different direction etc Check connections between external equipment and the LCD TV When turning the LCD TV on it takes a few seconds to display the image No image Check the system that you select corresponds with the external equipment or the video equipment Make
62. mounting the protective partition plate that is used for anti vibration and insulation please take care to keep it in intactness so as to avoid hidden trouble 3 5 Be sure to protect the cabinet from damage or scratch during service dismantling or mounting 2 Alignment instructions 1 Test equipment VG 848 YPbPr VGA signal generator VG 849 HDMI signal generator FLUKE 54200 TV signal generator CA210 white balancer 2 Power test Connect main board power board and IR board according the wiring diagram connect the power and press power key Remote controller or Keypad button to turn on the TV a Test the pin voltage of P802 power board the data is shown in table1 Table1 voltage data of P802 For 32 amp 42 P802 Pin12 Pin34 Pin567 Pingo Pin10 11 12 Pin13 Pin14 15 16 Voltage GND 228 252V GND 11 4 12 6V 475 525 2 55 lt 0 6V 2 5V 2 5 5V PWM b Test the pin voltage of P803 power board the data is shown in table2 Table2 voltage data of P803 For 32 amp 42 P803 Pin1 2 3 4 5 Pin6 7 8 9 10 Pin11 Pin12 Pin13 Pin14 Voltage 22 8 25 2V GND NC 2 5V 5V 2 5 5V PWM NC 3 Alignment flow chart The alignment flow chart is shown as fig 1 Check if DDC HDCP KEY FLASH are written Combined test for general assembly White balance adjustment Connect to the center signal source and c
63. ne ATV Analog TV DTV Digital TV 5 6 NVRAM Clear Initialize program s default values to NVRAM for following adjustment items accuracy In factory mode it is the first and important step to make sure all values are default value and correct Reset settings Gamma table Channel table Favorite channel Channel label etc Model table H V Position Clock Phase Source dependent setting Contrast Brightness etc Common setting Volume Language etc Parental Control Rating Password etc To avoid a mistake initial process after factory setting is done This item will have a check dialog yes or no to do the initial or not NOTICE After this item is processed then needs to be DC powered on off 5 7 Full power This is for power consumption testing To measure the maximum power consumption of TV set we adjust the value of following items to maximum Contrast Brightness Audio output 5 8 Source Calibration Auto Calibration gain offset must be adjusted color by firmware automatic adjustment in PC Video1 Composite and Video3 input source 5 9 Reset to Default Reset all settings of OSD menu to default value and will go to standby mode Reset settings Channel table Model table H V Position Clock Phase Source dependent setting Contrast Brightness etc Common setting Volume Language etc 5 10 RF Burn In RF ANT no signal input use snow pattern for burn in 5 11 RF F W Upgrade
64. of operation the power must be cut off immediately and no more operation is allowed under the same condition 2 7 Do not pull out or plug in the connection wire when the module is in operation or just after the power is off because in this case relatively high voltage still remains in the capacitor of the driving circuit Please wait at least one minute before the pulling out or plugging in the connection wire 2 8 When operating or installing LCD please don t subject the LCD components to bending twisting or extrusion collision lest mishap should result 2 9 As most of the circuitry in LCD TV set is composed of CMOS integrated circuits it s necessary to pay attention to anti statics Before servicing LCD TV make sure to take anti static measure and ensure full grounding for all the parts that have to be grounded 2 10 There are lots of connection wires between parts behind the LCD screen When servicing or moving the set please take care not to touch or scratch them Once they are damaged the screen would be unable to work and no way to get it repaired If the connection wires connections or components fixed by the thermo tropic glue need to disengage when service please soak the thermo tropic glue into the alcohol and then pull them out in case of damage 2 11 Special care must be taken in transporting or handling it Exquisite shock vibration may lead to breakage of screen glass or damage to driving circuit Therefore it must be packe
65. on ATV Dealer Mode Note First 5 channels means the first second third fourth and fifth OT 4 channel after TV auto searching TUNING LOCK Setting is in done in the next layer by pressing button Dealer START MODE x 050 E pr Each item can be selected from the assigned channels from 0 to 99 AC POWER MODE Selected channel needs to exist in the TV Lars sient z If the items set to OFF the channel will return to show original M picture MUSIC MODE SETUP Music Mode Pos 1 Music Mode Pos 2 Music Mode Pos 3 Music Mode Pos 4 Music Mode Pos 5 RESET Function returns to the initial value of the Dealer mode setting BAUD RATE The function supports the master baud rate to control the parameters of the system If the Baud Rate is different from the control the command won t be executed 12 7 Performance check 7 1 TV function Connect RF to the center signal source enter Channel menu auto tuning check if there are channels be skipped check if the picture and speaker are normal 7 2 AV S Video terminals Input AV S Video signal check if the picture and sound are normal 7 3 YPbPr YCbCr terminal Input YUV signal VG848 signal generator separately input the YUV signals listed in table4 and check if the display and sound are normal at any situation power on channel switch and format convert etc Table4 YUV signal format Table Component Video T
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68. rements Do not change the specs and type at will 2 Points for attention in servicing of LCD 2 1 Screens are different from one model to another and therefore not interchangeable Be sure to Use the screen of the original model for replacement 2 2 The operation voltage of LCD screen is high voltage Be sure to take proper measures in protecting yourself and the machine when testing the system in the course of normal operation or right after the power is switched off Please do not touch the circuit or the metal part of the module That is in operation mode Relevant operation is possible only one minute after the power is switched off 2 3 Do not use any adapter that is not identical with the TV set Otherwise it will cause fire or damage to the set 2 4 Never operate the set or do any installation work in bad environment such as wet bathroom laundry kitchen or nearby fire source heating equipment and devices or exposure to sunlight etc Otherwise bad effect will result 2 5 If any foreign substance such as water liquid metal slices or other matters happens to fall into the module be sure to cut the power off immediately and do not move anything on the module lest it should cause fire or electric shock due to contact with the high voltage or short circuit 2 6 Should there be smoke abnormal smell or sound from the module please shut the power off at once Likewise if the screen is not working after the power is on or in the course
69. shall be edited manually R B data for each preset Press Up or Down key to select R B item Press Left or Right key to set the value Press MENU or BACK item to exit to factory mode 5 2 Warm Press up or down key can select high light item function Press OK key to enter the item Following data for color temp shall be edited manually R G B data for each preset Press Up or Down key to select B item Press Left or Right key to set the value Press MENU or BACK item to exit to factory mode 9 5 3 Press up down key can select high light item function Press OK key to enter the item Following data for color temp shall be edited manually R G B data for each preset Press or Down key to select item Press Left or Right key to set the value Press MENU or BACK item to exit to factory mode 5 4 Timer Clear Press up or down key can select high light item function Press Right key to enter the item Reset the timer which records hours of LCD panel burn in Preset Channel Press up or down key can select high light item function Press Right key to enter the item 5 5 The system will be loaded preset channel for production li
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71. sure the temperature is not out of the operating temperature range 5 35 C Turn off power then turn on again re start the LCD TV Check audio cable connection from audio input source Adjust the audio source No sound Press VOLUME button Press MUTE button Dark or bright points of light red green or blue may appear on the screen This is a characteristic of the LCD panel not a malfunction of the LCD TV LCD panels are produced with very high accuracy technology There is 99 99 or more dot pixel There are tiny but there is also 0 01 or less of dot pixel lack or dot pixel that is constantly lighted This is not a black points defect and or bright E points the TV Regarding LCD panel characteristics look like a mirror when the screen is changed if it displays same screen for a long time Changing the picture or turn off the power supply may recover Stripe pattern more interference stripes may show up on the screen depend on the reflected picture Abnormal image Adjust colour settings colour Select a different colour system 29 2 Troubleshooting guide The flow chart shown below will help you to troubleshoot your Televison set with it doesn t display normally Each procedure offers a simple way to check for system errors Before starting ensure that there is a signal in and that the Televison is turned on 2 1 Power LED no light 30 2 2 Has audio but no video
72. t 10 seconds Daily Time to Check for SSU Unit will check for firmware update at a set time each day The time format is hours and minutes Manually search for SSU Manual function can directly update the latest version by pressing the OK button on START item Under firmware updating if new version is found the message No new software version found will be displayed otherwise the system will automatically execute update and show update status in the OSD window Update at Standby Mode Update at Standby Mode only manual update can do and if user turn off during updating This power LED red is flashing and POWER LED red is lighting at updating finish Don t remove AC cable during power LED flashing 17 Working principle analysis of the unit 1 PAL and DVB T signals flow Antenna reception B G D K DVB T signal will be send to tuner FQD1116ME then Tuner will be demodulating and output standard video signal TV CVBS DVB T and sound IF signal SIF TV CVBS will send to the master control IC ZR39670HGCF to video decode de interlace and scaler then output LVDS level drive for panel display DVB T will be fed into WJE6353 after OFDM demodulator the digital signal will be transform into MPEG transport stream out by DVB T COFDM Terrestrial IC and sent to scaler IC ZR39670HGCF processing then output LVDS level drive for panel display The sound IF SIF will be fed into MSP4410K after demodula
73. ting pre amplifying bass adjusting and volume control the sound signal will be transform into digital 12 signal by Sound Processor IC and sent to digital amplifier TAS5706 amplifying then sent to speaker About Earphone output MSP4410K will be sent analog signal to earphone amplifier TPA6110 then output to Earphone 2 AV SV signal flow SV signal and the Video1 path AV signal switch by menu Setup gt AV Connecting gt Video1 input via terminal socket the signal and the Video2 path AV signal will be fed to ZR39670HGCF to perform video decode de interlace and scaler then output LVDS drive level for panel display Audio signal from AV SV terminal via matched resistance is fed to MSP4410K to bass adjust and volume control the sound signal will be transform into digital 125 signal by Sound Processor IC and sent to digital amplifier TAS5706 amplifying then sent to speaker About Earphone output MSP4410K will be sent analog signal to earphone amplifier TPA6110 then output to Earphone 3 PC YPrPb signal flow PC and the Video3 path YPbPr signal are via terminal sent to ZR39670HGCF A D conversion output R G B of 24 bit to back end module to digital decode image scale then send to LVDS level drive for panel display Sound signal of PC YPrPb terminal via matched resistance and sent to MSP4410K to bass adjust and volume control the sound signal will be transform into digital 125 signal by Sound Processor IC and sent to digital ampl
74. to OFF customers can search clear TV or DTV channels START MODE This function decides which display source will appear after AC DC Power On Sources are as follow ATV TV 0 TV 10 DTV DTV O DTV 10 Video 1 Video 2 Video 3 HDMI 1 HDMI 2 HDMI 3 and PC If this function is set to OFF the display will follow the last source on Power On Off When this function is set to OFF the OSD won t be displayed on screen Remote Keypad activation If the function is set to ON the display will shown the OSD from Remote Keypad activation 2 This function can switch on off the remote control When the function is set to Normal the command can be executed by Remote Control When the function is set to Prohibit the command can t be executed by Remote Control except with Dealer s Hot Key 11 AC POWER MODE This function has 3 modes Standby and Last Under Standby mode the LCD will come to Power Off state after AC OFF ON Under the On mode the LCD will come to Power On state after the AC OFF ON Under the Last mode If the power is On state before the AC OFF the LCD will come to Power On after the AC ON If the power is Off state before the AC OFF the LCD will come to Power Off after the AC ON MUSIC MODE SETUP This function supports 5 channels to listen to music
75. ut amp timing out Impulse E ro Tc Secondary 2 wire bus control Primary 2 wire bus 22 4 5706 20 W Stereo Digital Audio Power Amplifier with EQ and DRC SDIN1 SDIN2 MCLK Click and Pop SCLK Control LRCLK SDA Serial SCL Control Terminal Control 5 519185 3 1 HDMI 1 3 Switch ROXO ROX gt amem ROX2 MEL ROXC R1X0 1 1 gt Terminator R1X2 Equalizer 4 RIXC 4 gt Transmit Drivers R2X0 R2X1 R2X2 R2XC TXC Receiver Block I2CADDR TPWR HPDO HPD1 23 6 TPA6110A2 150 mW STEREO AUDIO POWER AMPLIFIER TYPICAL APPLICATION CIRCUIT Voo Audio 5 Input Vop 2 O E Vo117 BYPASS Cic Audio coH P Input 1 gt From Shutdown Control Circuit 7 MSP4410K Multi standard Sound Processor Loud speaker Sound High Processing Sound IF1 Sound IF2 Resolution intemal 55 extemal 3 Audio Delay 7 5 8 Headphone Sound DAC E Headphone S PDIF 71 1253 o 25 g 284 o 2 8 channel S Surround SCART1 Processing SCART2 SCART1 SCARTS SCART4 SCART2 SCARTS ST Pt Ls 30 12 5554 LOGHO MOOTA 1 YIUI Z OAUBS dda
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SERVICE MANUAL LCD TV LCD-32E30A LCD

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