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Clear Voice Clearer dialogue sound

g

Automatically enhances and amplifies the sound of the human voice
frequency range to provide high-quality dialogue when background
noise swells.

Save Energy Save Money

Save Energy, Save Money

Home electronic products use energy when they're off to power features like
clock displays and remote controls. Those that have earned the ENERGY STAR
use as much as 60% less energy to perform these functions, while providing the
same performance at the same price as less-efficient models. Less energy

gy

means you pay less on your energy bill. Draws less than 1 Watt in stand by.

TruMotion 120Hz

See sports, video games and high-speed action with virtually no motion blur
and in crystal clarity with LG’s TruMotion 120Hz technology Now your TV

5M:1 Dynamic Contrast Ratio

Worrying about dark scenes is a thing of the past. The mega contrast

and in crystal clarity with LG s TruMotion 120Hz technology. Now your TV
can keep up with the fastest moving scenes.

ratio of 5,000,000:1 delivers vivid colors and deep blacks.

AV Mode "One click" Cinema,

THX

Cinema, Sport, Game mode.

TAKE IT TO THE EDGE is a true multimedia TV with an AV Mode
which allows you to choose from 4 different modes of Cinema Sports

July 2011 LCD TV

55LW56000

15

which allows you to choose from 4 different modes of Cinema, Sports
and Game by a single click of a remote control.

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Содержание 55LW5600

Страница 1: ...55LW56000 55LW56000 1080P Direct View LCD 55LW56000 55LW56000 LED Backlights Training LCD DV Troubleshooting 55 Class 1080P 120Hz LED TV SmartTV 54 6 diagonally Published July 30th 201 1 ...

Страница 2: ...n design and theory Product Information Section Specifications Menu Information Switch Mode Power Supply with LED Backlight Driver Troubleshooting Section Board Operation Troubleshooting of Disassembly Section Removal of Circuit Boards Switch Mode Power Supply with LED Backlight Driver Main Board T CON TFT Panel Driver Board Front IR Intelligent Soft Touch Key Board T CON TFT Panel Driver Board Sp...

Страница 3: ...hniques which can save time and money sometimes can be overlooked These techniques will also be presented Thi S ti ill t th T h i i f ili ith th Di bl Id tifi ti d This Section will get the Technician familiar with the Disassembly Identification and Layout of the LCD Display Panel f S f C At the end of this Section the Technician should be able to Identify the Circuit Boards and have the ability a...

Страница 4: ...s will not only void the warranty but July lead to property damage or user injury If wires screws clips straps nuts or washers used to complete a ground path are removed for user injury If wires screws clips straps nuts or washers used to complete a ground path are removed for service they must be returned to their original positions and properly fastened CAUTION CAUTION To avoid personal injury d...

Страница 5: ... Class B digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful g p p g interference when the equipment is operated in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual July cause harmful interference to radio ...

Страница 6: ...eo and Screen Notations LG CS Learning Academy http ln lge com ilearn http 136 166 4 200 Training Manuals Schematics with Navigational Bookmarks Start Up Sequence Owner s Guides Also available on the Plasma Page PDP Panel Alignment Handbook Pl C t l B d ROM U d t Ji i d Interconnect Diagrams Dimensions Connector IDs Product Pictures and Features Published July 2011 by LG Technical Support and Trai...

Страница 7: ...nd waveform checks to prevent costly short circuits from damaging the unit 5 Be cautious of lost screws and other metal objects to prevent a possible short in the 5 e cau ous o os sc e s a d o e e a objec s o p e e a poss b e s o e circuitry Checking Points to be Considered 1 Check the appearance of the Replacement Panel and Circuit Boards for both physical damage and part number accuracy 2 Check ...

Страница 8: ...enses the first check should always be the DC Supply Voltages to those circuits under test Always confirm the supplies are not only the proper level but be sure they are noise free If the supplies are missing check the resistance for possible short circuits Isolate To further isolate the failure check for the proper waveforms with the Oscilloscope to make a final determination of the failure Look ...

Страница 9: ...S IT A TV OR SOMETHING BETTER Welcome to the third dimension The LW5600 delivers LG Cinema 3D technology and a whole lot more It lets you tap into the virtually limitless entertainment capabilities of LG Smart TV and enjoy better picture quality with LG s LED Plus display technology July 201 1 LCD TV 55LW56000 9 picture quality with LG s LED Plus display technology ...

Страница 10: ...able between the TV and Dongle for Control Functions Media Box 2 Wired Remote cable between the TV and Dongle for Control Functions Wired Remote to control the Media Box Audio Video is only sent to the TV not from the TV to the Media Box Audio only to TV TV audio can not be heard via Optical Audio Out on Media Box Not 3D Ready Wi l R i T itt TV A V Inputs TV to the Media Box Wireless Receiver Tran...

Страница 11: ...ptor attaches to the Television via either of the two USB connections Allows access to DLNA Digital Living Network Alliance AP Wireless Router Any USB Port is OK Wireless Adaptor Side A V Cat 5 Cable with RJ 45 Connectors Dongle Side A V Inputs on each side Note If Software Update does not complete using Wireless Dongle use Wired CAT 5 Connection to the Router July 201 1 LCD TV 55LW56000 1 1 Modem...

Страница 12: ...Flash 10 or HTML 5 therefore access to certain web content July be limited or unavailable 2 For a small percentage of the population the viewing of stereoscopic 3D video technology may cause Wi Fi Ready Adapter Included Magic Motion Remote Included Full HD 1080p Resolution of stereoscopic 3D video technology may cause discomfort such as headaches dizziness or nausea If you experience any symptoms ...

Страница 13: ... even greater control of brightness through local dimming virtually any angle provides even greater control of brightness through local dimming technology to deliver better contrast amazing clarity and color detail as well as greater energy efficiency compared to conventional LCD TVs LG SmartTV A revolutionary easy way to access virtually limitless content thousands of movies customizable apps vid...

Страница 14: ...ng your LG TV connected to NetCast Entertainment Access and other online content is easy when you are WiFi Ready If you have existing wireless broadband setting it up is simple and you don t need to worry about messy wires Intelligent Sensor The Intelligent sensor will monitor the room lighting environment When the room lights go out the TV will automatically adjust the picture for the best viewin...

Страница 15: ... bill Draws less than 1 Watt in stand by TruMotion 120Hz See sports video games and high speed action with virtually no motion blur and in crystal clarity with LG s TruMotion 120Hz technology Now your TV 5M 1 Dynamic Contrast Ratio Worrying about dark scenes is a thing of the past The mega contrast and in crystal clarity with LG s TruMotion 120Hz technology Now your TV can keep up with the fastest...

Страница 16: ...RTION BOTTOM PORTION p n AKB72914041 55LW56000 Remote Control July 201 1 LCD TV 55LW56000 16 Parts List and Owner s Manual list a p n AKB72914043 It has the same buttons but some may be in different locations ...

Страница 17: ...d Photos Also for the Wireless Network adaptor Rear In Out Jacks Side In Out p USB 2 Wireless Media Box Remote Jack HDMI 4 USB 1 AV Component AV Component In HDMI 3 HDMI 4 HDMI 1 Antenna In AV Component In RS232 In HDMI 2 RGB LAN Optical Head RGB July 201 1 LCD TV 55LW56000 17 Optical Out Head Phones Audio ...

Страница 18: ...to highlight the mark SUPPORT Bring up the Customer s Menu then cursor down 2 times Input will be highlighted Cursor right to highlight SETUP Cursor right to highlight Software Update Press ENTER on Remote Press ENTER on the Remote Remote Highlight Check Update Version g g p to see if an update is available Scroll up to highlight ON and cursor right to turn off automatic Software Update July 201 1...

Страница 19: ...Version found on the USB Flash Drive File found on the USB Fl h D i See figure to right 5 Cursor left and highlight START Button and push Enter button using the remote control 6 You can see the download progress Bar 7 D t l til it h t ti ll CAUTION Do not remove AC power or th USB Fl h D i D t Flash Drive 7 Do not unplug until unit has automatically restarted 8 When download is completed you will ...

Страница 20: ...y 7 times Location of key 7 times Location of files found On the Jump Drive Highlight the Software update file which Scroll down and highlight Options File shown is not correct for this model Highlight the Software update file which will appear at the bottom of the screen Scroll down if more than one file is on the jump drive Press SELECT to begin the download process WARNING Use extreme Caution w...

Страница 21: ...light the mark SUPPORT Cursor right and scroll down to highlight cursor down 2 times Input will be highlighted Cursor right to highlight SETUP Press ENTER on the Remote highlight Product Service Info Press ENTER on Remote 3 Information for Customer Support appears Note Model Number does not include suffix July 201 1 LCD TV 55LW56000 21 ...

Страница 22: ...stigate the signal quality of a problem channel 2 Bring up the Customer s Menu Cursor down two times and right once to highlight Setup Press Enter on the remote g July be showing problems 5 Press the 1 Key 5 times The Host Diagnostics screen appears The Host Diagnostics screen appears 3 The Setup Menu appears July 201 1 LCD TV 55LW56000 22 See next page for more details ...

Страница 23: ...ASH 524288 KB DRAM 524288 KB NVM 128 KB Firmware Version PQ 2 02 07 01 25329 Micom Version V2 21 2 Compile Date Time 20101130 08 45 52 Compile User hellyhorse kang Center Frequency 663 00 MHz PCR lock Locked Modulation mode QAM 256 Carrier lock status Locked SNR 37 dB Signal level 100 Half Page Move Page Exit CH 23 55LW5600 Understanding the Host Diagnostic Screen Page 2 of 2 DVI HDMI Status Can t...

Страница 24: ...either Service Remote p n 105 201M or p n MKJ39170828 2 Press In Start 3 A Password screen appears 4 Enter the Password Note A Password is required to enter the Service Menu Enter 0000 Note If 0000 does not work use 0413 July 201 1 LCD TV 55LW56000 24 MKJ39170828 105 201M ...

Страница 25: ...AC 00 00 00 00 00 00 MAC Address E8 5B 5B 2E C3 67 Widevine LGTV10L000010332 ESN Num LGE LW4500XXXX00101F449C Formatter Version RF Receiver Version Debug Status UTT 12 APP History Ver 25329 PQL DB LGD_AF_LGT10_XXXXXX 1 Adjust Check 2 ADC Data 3 Power Off Status 4 System 1 5 System 2 6 Model Number D L 7 Test Option 8 External ADC 9 Spread Spectrum 10 Sync Level 11 Wireless Ready 12 Stable Count 13...

Страница 26: ...er Download Screen 0 Model Name 1 Serial Num Model Number D L Press OK to Save 55LW5600 UA Bring up the Service Menu using the Service Remote Scroll down to item 6 Model Number D L to highlight Press Cursor Right a black cursor should appear under the first digit in the Model Number line IN SART 011PTCA8Y075 To Change the Model Number 1 Use the cursor right or left to select the digit to change 2 ...

Страница 27: ...Service Menu is exited Model Name 55LW5600 UA Serial Number 011PTCA8Y075 S W Version MICOM Version BOOT Version FRC Version IR LED Version EDID RGB HDMI Chip Type Wireless Host Ver Wireless B B Ver Vi Fi Version Vi Fi Channel Wi Fi MAC 00 00 00 00 00 00 MAC Address E8 5B 5B 2E C3 67 Widevine LGTV10L000010332 ESN Num LGE LW4500XXXX00101F449C Formatter Version RF Receiver Version Debug Status UTT 12...

Страница 28: ...n the 1st page of the Service Menu shows AC3 this shows NG If NG was shown highlight Start and press Select on the remote Writing appears then OK PCM shows here Now Item 5 on Adjust Check in the 1st page of the Service Menu shows EDID PCM If Reset is selected Erasing will appear and then this shows NG When Item 11 was selected If Item 5 on Adjust Check in the 1st page of the Service Menu shows EDI...

Страница 29: ... 9mm 1 3 16 30 48mm 13 330 2mm 15 3 4 400mm 7 3 16 183mm 2 5 8 66 68mm Weight w o Stand 48 5 lbs Weight with Stand 47 8 lbs Center There must be at least 4 inches of Clearance on all sides 29 17 9 16 446 5mm 15 7 16 392 11m Wattage Typica 159W Max 175W Stand By 0 1W July 2011 55LW5600 LCD DV 25 7 16 646 43mm Center Model Serial Label 7 7 8 200m ...

Страница 30: ... discuss the Passive 3D used in the 55LW56000 LCD Direct View Television Upon completion of this section the Technician will have a better Upon completion of this section the Technician will have a better understanding of Passive 3D July 201 1 LCD TV 55LW56000 30 ...

Страница 31: ...le laying down Horizontal Left Right Viewing Angle Free Large group of people can watch simultaneously Additional Glasses Reasonably priced No Batteries No Charging simultaneously No synchronization pulse to interfere with Compatibility with all types of 3D Passive TV Maker Glasses can be made by polarized coating on normal glasses y p g g July 201 1 LCD TV 55LW56000 31 ...

Страница 32: ...Each eye can see left and right images respectively when wearing polarized glasses Each eye can see left and right images respectively when wearing polarized glasses Ri ht i i t t dd li July 201 1 LCD TV 55LW56000 32 Right images input to odd lines Left images input to even lines ...

Страница 33: ...ularly polarization 4th Right Eye Left Eye Polarized glasses 1 Patterned Retarder plate is attached on the LCD module 2 Patterned Retarder plate rotates odd line to CW 45 degree and even line CCW 45 degree 3 Odd number pixels see through the Left lens and even number pixels see through the Right lens of the Polarized glasses 4 The brain combines separated images into 3D image July 201 1 LCD TV 55L...

Страница 34: ...ish polarization state LHC Left Handed Circularly Polarization RHC Right Handed Circularly Quarter Wave Plate Polarization State 3 Circular RHC Right Handed Circularly Polarization Polarization State 2 Circular Pattern Retarder Divides light output into 2 kinds of polarization states Pattern Retarder Polarization State 1 Linear polarization states LHC Left Handed Circularly Polarization RHC Right ...

Страница 35: ...o 2D Input Capabilities 1 Side by Side 1 Line by Line LCD Interlaced Passive Horizontal or 3D Formats Frame Packed 2 Top and Bottom 3 Checkerboard Polarized Lens Frame Retarder over LCD panel and Polarized Glasses required 4 Frame Sequential Full Resolution available R L No Synchronization required between glasses and TV R 5 Over Under HDMI 1 4 Only L R represents Left Camera View July 201 1 LCD T...

Страница 36: ...the Quick MENU Ab lit b d b d L R nput nput nput USB Component Composite 1 HDMI Component Abnormality may be caused by reversed L R order of the input signal If TV already in Left Right change to Right Left or vice versa US Port Composite RF S Video Component RF 2 Top Bottom 4 3 5 5 2D to 3D Side by Side Checker Board Single frame Sequential Bottom July 201 1 LCD TV 55LW56000 36 36 Note Picture be...

Страница 37: ...s the distance between the object and the background in the picture to enhance the 3D effect in 2D to 3D mode 3D View Point Brings the picture including both the object and background images to the front or back to enhance the 3D effect in 3D mode 1 3D Picture Balance Adjusts the color and brightness difference between the right and left sides of the picture in 3D mode 3D Picture Correction Change...

Страница 38: ...ill discuss Disassembly Layout Circuit Board Identification of the 55LW56000 LCD Direct View Television Upon completion of this section the Technician will have a better understanding of the disassembly procedures the layout of the printed circuit boards and be able to identify each board July 201 1 LCD TV 55LW56000 38 ...

Страница 39: ... 8 Blocks E h f th 16 bl k b t ll d Each of the 16 blocks can be controlled independently Local Dimming or all of them as a group Global Dimming P DIM This allows the panel to be darkened out in areas that are black or low brightness areas of the video This allows for more deeper blacks and a thin design July 201 1 LCD TV 55LW56000 39 deeper blacks and a thin design ...

Страница 40: ...f screw Pay attention to the size and type of screw as there are many different types Putting in an improper screw when reassembling July Cause damage g y g The AC Cord unplugs under cover Remove plastic cover July 201 1 LCD TV 55LW56000 40 The Stand has to be removed before removing the back ...

Страница 41: ...ay have sharp edges To LEDs Power Supply SMPS Main Board LVDS Cables LVDS Cables Panel Connection Points T CON Invisible Speaker Right IR Soft Touch Key Board Invisible Speaker Left Motion July 201 1 LCD TV 55LW56000 41 Speaker Right Key Board Speaker Left Remote ...

Страница 42: ...71301 p n EAJ61750001 All Models p n EAJ61928201 AUSYLJR UR p n EAB62088401 p n EAY62169901 P601 n c SK100 P3503 To TFT Panel If the Panel is replaced reset the UTTTime Service Menu System 1 Item 12 To LEDs White Plug Black Plug P203 P202 P701 n c P832 P201 P502 P3502 CN2 CN1 CN4 CN5 T CON P3501 P901 P1302 Motion Remote Receiver p n EBR72499601 MAIN BOARD P1702 Comes with the Panel P101 n c Speake...

Страница 43: ...n the two P701 n c the two tabs to release lock P201 Remove the 6 screws indicated by the arrows AC In 2 by the arrows SK100 AC In Note This screw Is a different size July 201 1 LCD TV 55LW56000 43 SK100 fits very snug into it s connector Press in on the two tabs to release lock Is a different size with washer ...

Страница 44: ...ted by the arrows P601 tabs pull the LVDS ribbons out P1501 Decorative Metal Plate Remove the board Screw removed 3 P601 N C P901 P1302 After removing the Main there are tabs sticking through the Main board holding the Metal plate in place removed with Back Remove the board Then Remove the wrap around decorative Metal piece 4 P1302 p n EBR72717002 AUSYLHR p n EBR73145701 AUSYLJR EBR72717004 AUSYLU...

Страница 45: ...Remove the T CON Shield 3 Screws 1 2 Press in on the Press in on the two side unlocking tabs Return Screws if t ti b d CN2 CN1 Disconnect CN1 CN2 CN4 and CN5 See next page for removing Connectors 3 testing board CN4 CN5 Return Screws if testing board Flip up the unlocking tabs Flip up the July 201 1 LCD TV 55LW56000 45 p p unlocking tabs ...

Страница 46: ... connector Shown by the arrows in Figures below Use a thin object And push in at the Location shown by The arrow on the left Press In Pull Out Press In Pull Out Press In From the Main Top of the board Removing LVDS CN2 LVDS CN1 LVDS CN4 CN5 To the Panel Bottom of the board Removing Ribbons Flip the locking tabs upward and pull July 201 1 LCD TV 55LW56000 46 p g p p out the ribbon cables ...

Страница 47: ... it forward 1 2 Disconnect the cable coming from the Main board and remove it from the wire holders in Item 511 1 Wire routing bracket Slide Right Speaker 300 300 Tab Tab Tab Screw Remove the one screw Lift up on the three tabs at the top of Item 511 and ll th It 511 li htl f d 3 July 201 1 LCD TV 55LW56000 47 pull the Item 511 slightly forward Lift Item 511 up and out 510 511 ...

Страница 48: ...rd lay the TV down on its face and remove the LCD Panel by releasing the tabs around the perimeter of the panel Lift the Panel up and out 300 p p p The Front IR Key Board is attached to the Front Frame Item 300 p n ABJ73289206 It must be separated to replace independently Part number EBR72671301 July 201 1 LCD TV 55LW56000 48 510 511 ...

Страница 49: ...on of the manual will discuss troubleshooting Upon completion of this section the Technician will have Upon completion of this section the Technician will have a better understanding of how to diagnosis and resolve problems July 201 1 LCD TV 55LW56000 49 ...

Страница 50: ...s the PWR ON command 3 4V via P201 Pin 1 it turns on the Relay RL101 which supplies AC to the bridge rectifier BD101 The primary section Power Factor Controller circuit increases its current supplying ability Both Primary fuses F101 and F501 now reads between 395V 397V from hot ground D253 receiving switching pulses from L601 and filtered by C256 and C257 develops the 63V for the LED backlights Wh...

Страница 51: ...2V 2 8A 24V 1 2A 81 4V 1 6A 63V Line PWR ON turns on the 63V supply but it will only be 56V Note A block of LEDs can be turned on with this voltage It will increase to 63V when the DRV ON line goes high MODEL INPUT OUTPUT LGP55 11SLPB P201 Connector SMPS Board To P502 MAIN Board Pin Label STBY Run Diode Check 24 ERROR n c n c 2 2V 23 n c n c n c n c 22 PWM 0V 0 2V 3 3V OL 21 12V 0V 12 07V 0 48V 20...

Страница 52: ...M 8 4 P3502 5 7 Key 1 or IR 7 Video Processor IC101 M0_SCLK MO_M0SI L_VS 16 Blocks 9 POWER SUPPLY SMPS POWER SUPPLY SMPS Bridge Relays L601 D253 6 5 12V 24V Regulators On Board Inverter 8 6 Local and Global Dimming Local and Global Dimming 5 P DIM1 PWM DIM Pulse Width Dimming Global Dimming Manipulated by Cust Menu for Backlight and Picture Content Manipulate P DIM 8 8 22 18 2 4 See Note 1 17 19 2...

Страница 53: ...Q502 L511 3 5V_ST INV_ON PWR_ON IC602 Micro RL_ON Power Det 14 Reset 40 Key 1 25 Key 2 26 Power On Off 2_2 20 R508 4 7K 3 51V 3 51V 3 51V Q505 0V 36 R542 10KΩ 3 3V_Normal Reset Gnd 13 13 16 16 n c 23 23 n c n c Q501 R547 10K R644 47K C608 0 1uF IC101 BCM R228 22Ω R526 0Ω R643 22Ω IR 16 R605 100Ω R553 47K R559 1 8K To DC to DC Conv T CON 12V L507 IC505 Power_On Off2_2 R546 1K 0 68V R555 22KΩ 12V 12...

Страница 54: ...e with the next test But make sure AC is arriving at the connector SK101 17 18 15 16 13 14 11 12 12V b Unplug P502 on the Main Board to make insertion of the Jumpers easier Use P502 Side to insert resistors TEST 1 11 12 9 10 7 8 5 6 STBY 3 5V STBY 3 5V STBY 3 5V STBY 3 5V 1 Add a jumper between 3 5V STBY pin 7 8 9 or 10 and Pin 1 PWR_ON Apply AC This will turn on the power supply relay will click ...

Страница 55: ... backlights should turn on SMPS OK Inverter OK Backlights Abnormal a Recheck all connections 9 10 7 8 5 6 STBY 3 5V STBY 3 5V STBY 3 5V STBY 3 5V a Recheck all connections b Confirm the DRV_ON line pulling up to at least 3V c Check the connections to the Panel If the DRV On command is pulling up to at least 3V and the 63V is being generated Pin 1 is the 3 4 1 2 24V 24V 24V PWR_ON _ p g p g g from ...

Страница 56: ...et P202 pin 6 Block VC 4A EL74 Rivet P202 pin 7 Block VC 4B EL75 Rivet P202 pin 8 Block VC 4C EL76 Rivet P202 pin 9 Block VC 4D EL77 Rivet P202 pin 10 63V P202 pin 1 and 12 B 8 blocks 63V P203 pin 1 and 13 B 8 blocks 160 Total LEDs 2 Boards Strips 80 LEDs per board ONE STRIP Board 1 Block 63V 20V p p LED Drive Signal 50 IRE 2mSec Driver On SMPS 6 14V drop per LED max white Global And Local Dimming...

Страница 57: ...d at the side of C256 or C257 or the Cathode of D253 Note When the PWR ON command 63V Note When the PWR_ON command Arrives this voltage will read 56V When the DRV_ON command arrives This voltage will rise to 63V 63V 63V D253 D253 Location Top Center of the SMPS July 201 1 LCD TV 55LW56000 57 Location Top Center of the SMPS ...

Страница 58: ...63 EL77 EL75 EL73 EL66 EL64 EL62 EL76 EL74 EL72 4 VC 3B EL71 5 VC 3C EL72 6 VC 3D EL73 7 VC 4A EL74 4 VC 1B EL63 5 VC 1C EL64 6 VC 1D EL65 7 n c n a EL68 EL67 EL71 EL69 8 VC 4B EL75 9 VC 4C EL76 10 VC 4D EL77 11 n c n c 8 VC 2A EL66 9 VC 2B EL67 10 VC 2C EL68 11 VC 2D EL69 EL70 11 n c n c 12 LED C256 11 VC 2D EL69 12 n c n a 13 LED C256 WARNING Do not simply Ground any of the EL Test Points EL62 E...

Страница 59: ...V 18V OL 4 VC 1B EL63 1 59V 18V OL 5 VC 1C EL64 1 59V 18V OL 6 VC 1D EL65 1 59V 18V OL 7 n c n a n c OL 8 VC 2A EL66 1 59V 18V OL 8 VC 4B EL75 1 59V 18V OL 9 VC 4C EL76 1 59V 18V OL 10 VC 4D EL77 1 59V 18V OL 11 n c n c n c OL 8 VC 2A EL66 1 59V 18V OL 9 VC 2B EL67 1 59V 18V OL 10 VC 2C EL68 1 59V 18V OL 11 VC 2D EL69 1 59V 18V OL 12 OL P203 P202 1 1 12 LED C256 63V OL White to Black screen 12 n c...

Страница 60: ...00uSec div Bottom Waveforms are 100uSec div Pin Label 1 VSYNC 2 SDA 3 SCL 4 SIN 5 Gnd 6 L DIM0_SCLK 7 n c 8 Reverse P832 Pin 2 SDA 3 3V p p P832 Pin 3 SCL 3 2V p p 2mSec div 2mSec div P832 Pin 1 VSYNC 3 5V p p P832 Pin 4 SIN 3 35V p p P832 Pin 6 SCLK 3 3V p p July 201 1 LCD TV 55LW56000 60 ...

Страница 61: ...Diode Check 8 Reverse 0V 0V 1 91V 7 n c n c n c OL 6 SCLK 0V 0 1V OL 5 Gnd Gnd Gnd Gnd 4 SIN 0V 0V OL 3 SCL 0V 3 2V OL 3 SCL 0V 3 2V OL 2 SDA n c 3 2V OL 1 VSYNC 0V 0V 2V Pin numbers are inverted on the Main Board July 201 1 LCD TV 55LW56000 61 Diode Mode values taken with all Connectors Removed ...

Страница 62: ... 5V 3 56V 3 51V OL 5 8 Gnd Gnd Gnd Gnd 3 PDIM1 Pin 22 can vary according to incoming video IRE level OSD Backlight setting and then Intelligent Sensor 1 PWR ON Pi 1 t th SMPS hi h d 12V d 5 8 Gnd Gnd Gnd Gnd 2 4 24V 0V 25V 1 1V 1 PWR ON 0V 3 4V 1 16V g g g room light condition Output from the Video Processor IC900 Range 0 37V to 3 3V P DIM1 3 66V p p 50IRE 1 PWR_ON Pin 1 turns on the SMPS which se...

Страница 63: ...AC Voltage Readings From Hot Ground F100 5A 250V AC Voltage Readings From Hot Ground Pins 1 and 2 for STBY and RUN F100 AC IN Diode Mode values taken with all Connectors Removed F100 Diode Check F100 Diode Check Red or Black Lead on Fuse Open Other Lead on Hot Ground L N SK100 Bottom Left of SMPS L N July 201 1 LCD TV 55LW56000 63 ...

Страница 64: ...oltage Checks F101 3 15A 250V From Hot Gnd STBY 57V Run 396 5V Run 396 5V F501 1A 250V From Hot Gnd STBY 154V Run 398 5V July 201 1 LCD TV 55LW56000 64 If the set was on and then turned off the voltage takes a while to bleed down ...

Страница 65: ... Q 0 f h 12V i i f h SMPS STAND BY VOLTAGES 3 3V_ST Direct from SMPS through L503 GENERAL 5V_Normal IC507 Made from 12V In 3 3V_Normal IC505 Made from 12V In 5V USB IC506 Made from 12V In BCM IC101 Video Processor by Q507 from the 12V arriving from the SMPS TUNER TU2101 and VSB CIRCUIT 5V_TU Made from 5V_Normal through L2101 4 3 3V_TU Made from 3 3V_Normal L2103 1 26V TU IC2103 Made from 3 3V TU B...

Страница 66: ...runs Hot This is normal USB 1 USB 2 IC102 NAND FLASH P1502 To T CON IC5201 FRC See next page for component identification IC101 BCM USB 2 FLASH P601 n c P1501 To T CON HDMI 4 FRC IC602 Wireless Remote P901 To Ft IR Component 1 HDMI 2 HDMI 3 Micro C LAN HDMI 1 P1302 To Motion Remote Composite 1 Tuner TU2101 Headphones RS232 n c July 201 1 LCD TV 55LW56000 66 Component In These connectors are Mini p...

Страница 67: ...Power SW 24MHz HP Mute TU_SIF TU_CVSB CEC RGB_DDC_SDA RGB_DDC_SCL URSA Reset SPI Flash Amp Mute INV_CTL Power Det 24V Power Det 12V Panel Vcc Switch EEPROM E B C Q904 IC601 E B C Q906 S G D Q507 E B C Q506 E B C Q505 D810 C A1 A2 E B C E B C Q2105 C A1 A2 D707 D710 C A1 A2 C A1 A2 D708 D711 C A1 A2 C A1 A2 D713 Q102 G S B D G S B D G S B D Q101 E B C Q801 Q710 Q2104 3 1 2 IC502 3 1 2 IC503 E B C Q...

Страница 68: ...YLHR p n EBR73145701 AUSYLJR p n EBR72717004 AUSYLUR p n EBT61398007 AUSYLUR 1 18 18 IF p 17 IF n 16 IF AGC 15 Reset 14 3 3V 13 1 26V 12 GND 11 CVBS 10 NC 9 SIF 8 NC 7 SDA 6 SCL 5 NC 4 NC 3 5V 2 NC 1 NC TU2101 TUNER IC5401 IC5403 IC5301 IC5201 FRC X5201 SW1 Microprocessor Reset IC5402 P5201 P102 X101 45Mhz SW5201 Debug Debug n c 10Mhz 32 768KHz RL_ON Drivers Audio Amp 1 5V_FRC 0 9V_CORE 0 9V_Core ...

Страница 69: ...FRC 4 1 36V 6 5 33V 6 3 48V PWR On Off2_1 Pin PC Pin Regulator 5 11 96V 7 4 6V 7 4 96V Out 1 0V Gnd IC1203 EDID Data 1 Under Shield 6 11 96V 8 5 81V 8 4 96V Out 2 0V Gnd Pin PC 2 Under Shield 7 11 96V 9 0 95V 3 0V Gnd 1 0V Gnd 3 Under Shield 8 11 96V 10 1 36V IC508 1 5V_DDR 4 0V Gnd 2 4 96V Vcc In 4 Under Shield Pin Regulator 5 4 73V 3 4 96V Vcc In 5 0 8V Q508 0 9V FET IC504 2 5V BCM 1 3 46V 6 4 7...

Страница 70: ... B C Q505 D810 C A1 A2 E B C E B C Q2105 C A1 A2 D707 D710 C A1 A2 C A1 A2 D708 D711 C A1 A2 C A1 A2 D713 Q102 G S B D G S B D G S B D Q101 E B C Q801 TU2101 TUNER Q710 Q2104 1 18 3 1 2 IC502 3 1 2 IC503 E B C Q504 E B C Q1701 IC5202 E B C S G D Q5202 Q5201 p n EBR72717002 AUSYLHR p n EBR73145701 AUSYLJR p n EBR72717004 AUSYLUR p n EBT61398007 AUSYLUR TU_SIF TU_CVSB CEC Side HP Mute RGB_DDC_SDA RG...

Страница 71: ...rv_On Q904 IR Wireless Pass Pin Reset Pin IC802 RGB EDID 1 0V Gnd Pin Driver Pin 2nd Driver G 3 33V A1 4 73V 2 0V Gnd B 0V INV ON En B 0 02V S 3 33V C 5 01V 3 3 49V C 3 28V Out C 3 48V D 0V Out A2 0 07V 4 0V Gnd E Gnd E Gnd 5 3 49V D707 5V Pull Up to 6 3 49V Q505 PANEL_VCC Pin DDC_SCL SDA_1 7 0V Gnd Pin Control 1st Driver Q906 IR Wireless Pass A1 4 96V 8 3 50V Vcc In B 0V Pin 1st Driver C 5V C 0 6...

Страница 72: ...all 32 768KHz 1 71V 1 71V Either leg 3V p p 2 28V p p 2 09V 3 51V p p Bottom leg The time p p p p Runs when set is on 24Mhz g 1 57V X601 2 31V IC601 Micro Crystal Either leg MAIN Board 2 31V p p 3 3V Either leg Runs when set is on 10Mhz 2V 3 3V p p July 201 1 LCD TV 55LW56000 72 10Mhz Runs all the time ...

Страница 73: ... Audio B 12 43V on each pin IC1702 VOLTAGES 3 3V_AU_AVDD pin 13 3 3V_DVDD pin 27 All made from 3 3V Normal IC1702 _ Right Channel 24V pin 34 35 R 24V pin 40 41 R R R 1 Left Channel 24V pin 44 45 L 24V pin 2 3 L L L Q1701 Back side of the board is Mute Active Low 3 3V_ST Collector to AMP_MUTE_PDN Pin 19 Amp _Reset pin 25 July 201 1 LCD TV 55LW56000 73 ...

Страница 74: ...in To Speakers P1702 P1702 Connector Main To Speakers Pin Label SBY Run Diode Check 1 SPK R 0V 12 43V Open 2 SPK R 0V 12 43V O R R 2 SPK R 0V 12 43V Open 3 SPK L 0V 12 43V Open 4 SPK L 0V 12 43V Open R L L July 201 1 LCD TV 55LW56000 74 Diode Mode values taken with all Connectors Removed ...

Страница 75: ...D VSYNC n c n c OL 17 12V 0V 12 01V 2 09V 18 DRV ON 0V 3 24V 1 54V 19 12V 0V 12 01V 2 09V 20 A DIM n c n c OL 21 12V 0V 12 01V 2 09V Odd Pins Top Row 21 12V 0V 12 01V 2 09V 22 PDIM 1 0V 0 2V 3 3V 2 4V 23 n c n c n c OL 24 Err OUT n c n c OL 1 PDIM Pin 22 can vary according to incoming video IRE level OSD Backlight setting and Intelligent Sensor room light condition Range 0 2V to 3 3V P DIM1 July 2...

Страница 76: ... n c 29 TXB0P 1 18V 1 13V 49 Panel_VCC 12 13V 0 89V 10 n c n c n c 30 TXB1N 1 23V 0 85V 50 Panel_VCC 12 13V 0 89V 11 Gnd Gnd Gnd 31 TXB1P 1 16V 1 15V 51 Panel_VCC 12 13V 0 89V 12 TXA0N 1 24V 1 13V 32 TXB2N 1 25V 1 13V 13 TXA0P 1 18V 1 13V 33 TXB2P 1 16V 1 13V P3501 13 TXA0P 1 18V 1 13V 33 TXB2P 1 16V 1 13V 14 TXA1N 1 23V 1 13V 34 Gnd Gnd Gnd 15 TXA1P 1 16V 1 13V 35 TXBCLKN 1 19V 1 11V 16 TXA2N 1 2...

Страница 77: ... 30 TXD2N 1 25V 1 12V 10 TXC0N 1 24V 1 13V 30 TXD2N 1 25V 1 12V 11 TXC0P 1 18V 1 13V 31 TXD2P 1 16V 1 12V 12 TXC1N 1 23V 1 12V 32 Gnd Gnd Gnd 13 TXC1P 1 16V 1 12V 33 TXDCLKN 1 19V 1 14V 14 TXC2N 1 25V 1 10V 34 TXDCLKP 1 23V 1 10V 15 TXC2P 1 16V 1 10V 35 Gnd Gnd Gnd 16 Gnd Gnd Gnd 36 TXD3N 1 24V 1 10V 17 TXCCLKN 1 19V 1 10V 37 TXD3P 1 18V 1 10V 18 TXCCLKP 1 23V 1 10V 38 TXD4N 1 23V 1 10V 19 Gnd Gnd...

Страница 78: ...d Gnd Gnd 7 Gnd Gnd Gnd Gnd 8 LED_B BUZZ 0V 0V OL 9 2 IR 1 5V 1 41V OL 10 Gnd Gnd Gnd Gnd 1 11 3 3V_Normal 0V 3 33V 0 55V 12 LED_R BUZZ 0V 0V 2 68V 13 Gnd Gnd Gnd Gnd 14 3 S T SCL 3 55V 3 48V 1 91V 1 Clock Data pulses only present when Intelligent Sensor is turned on 3 6V p p 2 IR pulses 2V p p 14 S T_SCL 3 55V 3 48V 1 91V 15 3 S T_SCL 3 55V 3 48V 1 92V July 201 1 LCD TV 55LW56000 78 Diode Mode va...

Страница 79: ...Normal 3 41V 0 56V 2 Gnd Gnd Gnd 2 Gnd Gnd Gnd 3 M_Remote_RX 3 30V OL 4 M_Remote_TX 3 31V OL 5 R t 3 32V 2 41V 5 Reset 3 32V 2 41V 6 DC_MRemote 3 31V 2 42V 7 DD_MRemote 3 31V 2 40V 1 8 Gnd Gnd Gnd 9 GPI0 O 0V OL 10 GPI0 1 0V OL Not Used 11 GPI0 2 0V OL 12 GPI0 3 0V OL Not Used July 201 1 LCD TV 55LW56000 79 Diode Mode values taken with all Connectors Removed ...

Страница 80: ... Jack _ 13 I2C_SDA 0V 3 3V 1 77V 14 Gnd 0V Gnd Gnd 15 Wireless_RX 0V 3 3V OL 16 Wi l TX 0V 3 3V OL Diode Mode values taken with all Connectors Removed 16 Wireless_TX 0V 3 3V OL 17 Gnd 0V Gnd Gnd 18 IR 0 67V 3 3V OL 19 20 Gnd 0V Gnd Gnd 1 Voltages with Wireless Media Box Dongle plugged in Use Media Box Dongle side to read voltages Remove cover see Wireless Media Box training manual for details 25V ...

Страница 81: ... CN1 d CN2 hi h it i t TFT D i Si l It d li it t t Board at CN1 and CN2 which it processes into TFT Drive Signals It delivers its output signals through connectors CN4 and CN5 to control the LCD Panel US1 and U6 are DC to DC converters which develop the Panels driver voltages These lt b d t th ibb t t t t l ti th b d hi h voltages can be read at the ribbon connector or at test locations on the boa...

Страница 82: ... shown in the picture are for the Service Position They would have been removed when removing the shield B t i t ll th if i i th T CON b d Be sure to reinstall them if servicing the T CON board CN2 CN1 CN2 CN1 CN4 CN5 July 201 1 LCD TV 55LW56000 82 ...

Страница 83: ...n 8 CN5 pin 53 U6 pin 15 4 05V to CN4 pin 9 CN5 pin 52 U6 pin 18 3 01V to CN4 pin 10 CN5 pin 51 U6 pin 19 2 36V to CN4 pin 11 CN5 pin 50 UC1 U5 F1 3A 125V L2 L3 Q12 1 2 3 2 1 2 3 2 D5 D2 FL1 FL2 D3 L1 3 3V US1 CN4 CN5 CN1 CN2 TO TFT MODULE 5V Pin 13 14 VGL Pin 20 21 VDD 5 3V Pin 47 48 VGL Pin 40 41 VDD 16 4V 16 4V U6 VGL 5V 3 3V Pin 35 36 VCC 3 3V Pin 25 26 VCC D6 1 2 V Panel Test TP 44 Pin 18 1 2...

Страница 84: ... SMPS to the T CON Fuse F1 P201 pin 17 or 19 or 21 51 44 3 Disconnect both LVDS Cables 2 LVDS Cables Jump 3 3V from the VCC TP to pin 44 of CN1 Note The connector has hash marks to indicate steps of 5 4 indicate steps of 5 The marks are off one pin to the left 5 is actually 6 July 201 1 LCD TV 55LW56000 84 Apply AC to the Power Supply and Toggling patterns of White Red Blue Green should appear on ...

Страница 85: ... 1 18V 1 94V 49 Panel_VCC 11 98V OL 10 PANEL_CTL 0V OL 30 TXB1N 1 24V 1 94V 50 Panel_VCC 11 98V OL 11 Gnd Gnd Gnd 31 TXB1P 1 17V 1 94V 51 Panel_VCC 11 98V OL 12 TXA0N 1 23V 1 94V 32 TXB2N 1 29V 1 94V 13 TXA0P 1 16V 1 94V 33 TXB2P 1 15V 1 94V Bold labels are video signals Pins 48 51 are 12V 14 TXA1N 1 25V 1 94V 34 Gnd Gnd Gnd 15 TXA1P 1 15V 1 94V 35 TXBCLKN 1 19V 1 94V 16 TXA2N 1 27V 1 94V 36 TXBCL...

Страница 86: ...d Gnd 30 TXD2N 1 25V 1 94V Bold labels are video 10 TXC0N 1 23V 1 94V 31 TXD2P 1 15V 1 94V 11 TXC0P 1 18V 1 94V 32 Gnd Gnd Gnd 12 TXC1N 1 24V 1 94V 33 TXDCLKN 1 19V 1 94V 13 TXC1P 1 19V 1 94V 34 TXDCLKP 1 23V 1 94V video signals 14 TXC2N 1 26V 1 94V 35 Gnd Gnd Gnd 15 TXC2P 1 15V 1 94V 36 TXD3N 1 25V 1 94V 16 Gnd Gnd Gnd 37 TXD3P 1 17V 1 94V 17 TXCCLKN 1 18V 1 94V 38 TXD4N 1 31V 1 94V 18 TXCCLKP 1 ...

Страница 87: ...ntrolled by different Clock and Data lines which communicate with the LED Driver IC U1 These clock and data lines are from the Main board P901 pins 14 and 15 which are only active when the Power is turned on or off The Soft Touch Keys are part of the IR board Key 1 pin 4 and Key 2 pin 5 are output From Pat P901 on the Main Board then to the Microprocessor 25 and 26 lines The Intelligent Sensor com...

Страница 88: ... sliding it forward Disconnect the cable coming from the Main board and remove it from the wire holders in Item 511 Wire routing bracket Slide Right Speaker 300 300 Tab Tab Tab Screw Remove the one screw Lift up on the three tabs at the top of Item 511 and ll th It 511 li htl f d July 201 1 LCD TV 55LW56000 88 pull the Item 511 slightly forward Lift Item 511 up and out 510 511 ...

Страница 89: ...ion for gaining access to the IR Key Board IR Key Board p n EBR72671301 Front IR Key Board Exposed Attached to the Front Frame Key Board Decoder G O Ground Output 1 48V J1 Power V G Input Voltage 3 55V Infrared Receiver IC2 1 July 201 1 LCD TV 55LW56000 89 LEDs IC2 ...

Страница 90: ... Gnd Gnd 1 7 Gnd Gnd Gnd Gnd 8 LED_B BUZZ 0V 0V OL 9 IR 1 48V 1 47V OL 10 Gnd Gnd Gnd Gnd 11 3 3V_Normal 0V 3 33V OL 12 LED_R BUZZ 0V 0V OL 13 Gnd Gnd Gnd Gnd 14 S T SCL 3 55V 3 49V OL 1 Clock Data pulses only present when Intelligent Sensor is turned on 3 6V p p 2 IR pulses 2V p p 3 14 S T_SCL 3 55V 3 49V OL 15 S T_SDA 3 55V 3 49V OL July 201 1 LCD TV 55LW56000 90 Diode Mode values taken with all...

Страница 91: ...olume 1 67V Volume 10 7M Ohms Volume 1 07V Home 5 4M Ohms Home 0 54V o e 5 O s o e 0 5 Enter 1 19M Ohms Enter 0 12V Key 2 Line y KEY 2 Pin 5 measured from Gnd KEY 2 Pin 5 measured from Gnd CH Up 15 9M Ohms CH Up 1 56V CH Dn 9 8M Ohms CH Dn 0 98V Power 5 7M Ohms Power 0 53V Input 1 19M Ohms Input 0 12V J1 1 July 201 1 LCD TV 55LW56000 91 Diode Mode values taken with all Connectors Removed ...

Страница 92: ...djust the volume change channels and mute the audio with the Motion Remote and it has a convenient Home button for the TV Menu A wrist band can be attached to the remote to avoid dropping and damaging the remote The Motion Remote utilizes a specialized receiver on the Television to receive the RF signal and this information Television to receive the RF signal and this information is then routed to...

Страница 93: ...de Check 1 3 5V_Normal 0 35V 3 33V 0 53V 2 Gnd Gnd Gnd Gnd 3 M_Remote_RX 0 35V 3 33V OL 4 M R t TX 0 35V 3 33V OL 4 M_Remote_TX 0 35V 3 33V OL 5 Reset 0 35V 3 33V OL 6 DC_MRemote 0 35V 3 33V 2 41V 7 DD_MRemote 0 35V 3 33V 2 38V 8 Gnd Gnd Gnd Gnd 9 GPI0 O 0V 0V OL 10 GPI0 1 0V 0V OL 11 GPI0 2 0V 0V OL July 201 1 LCD TV 55LW56000 93 12 GPI0 3 0V 0V OL Diode Mode values taken with all Connectors Remo...

Страница 94: ...he Invisible Speaker system The 55LW56000 contains the Invisible Speaker system The Full Range Speakers point downward so there is no front viewable speaker grill or air ports Back View Front View Speaker p n EAB62088401 July 201 1 LCD TV 55LW56000 94 ...

Страница 95: ...e version of the Training Manual g The Adobe version of this Training Manual allows the viewer to g zoom in and out making reading of the small text easier This Power Point shows a graphical representation of the 1 1 X 17 foldout page so clarity is limited foldout page so clarity is limited July 201 1 LCD TV 55LW56000 95 ...

Страница 96: ...0V OL IR 1 5V 1 41V OL 0V 3 33V 0 55V Label 11 12 Gnd Gnd Gnd Gnd 3 3V_Normal 0V 0V 2 68V LED_R Pin STBY Run Diode 13 Gnd Gnd Gnd Gnd S T_SCL 3 55V 3 48V 1 91V S T_SDA Label 14 15 3 55V 3 48V 1 92V Motion Remote Warning T CON Board under shield Be sure to reinsert screws before operating set with shield removed p n EBR72671301 p n EBR72499601 p n EAJ61750001 All Models p n EAJ61928201 AUSYLJR UR P...

Страница 97: ...TU Q501 RL_ON PWR_On Pin 1st Pin Regulator 11 3 72V 11 n c 3 34V Pin Regulator Pin 1st Driver B 0 57V IC504 2 5V BCM 1 0V Gnd 12 1 81V 12 3 48V 1 0V Gnd B 0 64V C 0 02V Pin Regulator 2 11 98V In 13 1 81V 13 0V 2 1 27V Out C 0V E Gnd 1 n c 3 0V Gnd 14 5V Vcc In 14 5 59V 3 3 33V In E Gnd 2 4 92V En 4 0 79V 15 0V Gnd 3 3 47V In 5 3 48V 16 3 5V Vcc In Q502 PWR_ON 4 3 49V Ctl 6 3 48V PWR On Off2_1 Pin ...

Страница 98: ...6000 Conclusion Page Direct View LCD Direct View LCD Update Notifications In the future if there are any Updates they will appear here Thi l d th 55LW56000 3D 3D This concludes the 55LW56000 training session ...

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