LG Electronics 47LE8500 manual

47LE8500 47LE8500 1080P 47LE8500 47LE8500 LED Backlights 1080P Dir ect V iew LCD T raining LCD-DV T roubleshooting 47" Class Full HD 1080P LCD TV (47" diagonally) Published July 2 3, 2 0 1 0 Upda t ed December 0 6 th , 2 0 1 0 Leandro Palmeira Downloaded From TV-Manual.com Manuals[...]

July 2010 LCD TV 47LE8500 2 OUTLINE OUTLINE • Extension Boards • Switch Mode Power Supply Preliminary Section: Troubleshooting Section: Board Operation Troubleshooting of : Contact Information, Prelimi nary Matters, Specifications, LCD Overview, General Troubleshooting Steps, Signal Distribution, Disassembly Instructions and Voltages • Main B[...]

July 2010 LCD TV 47LE8500 3 47LE8500 LCD Direct View Display Section 1 This Section will cover Contact Information and remind the Technician of Important Safety Precautions for the Customers Safe ty as well as the Technician and the Equipment. Basic Troubleshooting Techniques which ca n save ti me and money sometimes can be overlooked. These techni[...]

July 2010 LCD TV 47LE8500 4 IMPORTANT SAFETY NOTICE IMPORTANT SAFETY NOTICE The information in this training manual is intended for us e by persons possessing an adequate background in electrical equipment, electronic devices, and mechanical systems. In any attempt to repa ir a major Product, personal injury and pro perty damage can result. The man[...]

Downloaded From TV-Manual.com Manuals[...]

L G Cont act Information L G Cont act Information Customer Service (and Part Sales) (800) 243-0000 T echnical Support (and Part Sales) (800) 847 7597 T echnical Support (and Part Sales) (800) 847 - 7597 USA W ebsite (GSFS) http://gsfs-america.lge.com Customer Service W ebsite http://www .us.lgservice.com Knowledgebase W ebsite http://lgtechassist.c[...]

July 2010 LCD TV 47LE8500 7 Safety and Handling Regulations 1. Approximately 20 minute pre-run time is r equired before making any picture perf ormance adjustments from the Menu. 2. Refer to the Voltage/Current silk screen ing on the Switch Mode Power Supply. 3. C-MOS circuits are sensitiv e to static electricity. Use caution when dealing with thes[...]

July 2010 LCD TV 47LE8500 8 Basic Troubleshooting Steps Basic Troubleshooting Steps Define, Localize, Isolate and Correct • Define Look at the symptom care fully and determine what ci rcuits could be causing the failure. Use your senses Sight, Smell, Touch and Hearing. Look for burned parts and check for possible overheated components. Capacitors[...]

July 2010 LCD TV 47LE8500 9 This section of the manual will discuss the specifications of the 47LE8500 LCD Direct View Display 47LE8500 PRODUCT INFORMATION SECTION 47LE8500 PRODUCT INFORMATION SECTION Leandro Palmeira Downloaded From TV-Manual.com Manuals[...]

July 2010 LCD TV 47LE8500 10 Wireless Media Box (Sold Separately) The Wireless Media box communicates to th e television via a wireless receiver called a “Dongle”. The Dongle attaches to the Television via two connections: 1. HDMI Cable from the Dongle to the TV to transfer Audio and Video Signals. 2. Wired Remote cable between the TV and Dongl[...]

Downloaded From TV-Manual.com Manuals[...]

July 2010 LCD TV 47LE8500 12 Basic Specifications Basic Specifications Key TV Features • INFINIA Series* • Full LED Slim w/Local Dimming • THX Certified Display • NetCast™ Entertainment Access* (Wi-Fi® Ready) • Wireless 1080p Ready* • DLNA Certified® • TruMotion 240Hz • Full HD 1080p Resolution • 9M:1 Dynamic Contrast Ratio ?[...]

July 2010 LCD TV 47LE8500 13 47LE8500 Logo Familiarization Page 1 of 4 47LE8500 Logo Familiarization Page 1 of 4 New definition television. LG’s INFINIA TVs are redefining home entertainment. Even beyond their jaw-dropping design, they offer access to virtually unli mited entertainment through broadband connectivity and freedom with wireless HD c[...]

July 2010 LCD TV 47LE8500 14 47LE8500 Logo Familiarization Page 2 of 4 47LE8500 Logo Familiarization Page 2 of 4 Invisible Speaker Personall y tuned b y Mr. Mar k Levins on for LG TAKE IT TO THE EDGE newly int roduces ‘Invisible Speaker’ system, guaranteeing first class audio qualit y personally tune d by Mr. Mark Levinson, world renowned as an[...]

July 2010 LCD TV 47LE8500 15 47LE8500 Logo Familiarization Page 3 of 4 47LE8500 Logo Familiarization Page 3 of 4 AV Mode "One click" Cinema, THX Cinema, Sport, Game mode. TAKE IT TO THE EDGE is a true mu ltimedia TV with an AV Mode which allows you to ch oose from 4 different mode s of Cinema, Sports and Game by a single c lick of a remot[...]

July 2010 LCD TV 47LE8500 16 47LE8500 47LE8500 Logo Familiarization Page 4 of 4 Logo Familiarization Page 4 of 4 Wireless Ready Wireless 1080p Connectivity lets y ou cut loose from messy wires and still get a stunning Full HD picture. Disclaimer: Wireless media kit required and so ld separately. Picture Wizard Get easy self-calibration with on-scre[...]

July 2010 LCD TV 47LE8500 17 47LE8500 Remote Control 47LE8500 Remote Control TOP PORTION BOTTOM PORTION p/n AKB72914003 Leandro Palmeira Downloaded From TV-Manual.com Manuals[...]

Downloaded From TV-Manual.com Manuals[...]

TV Rear Input / Output Jacks TV Rear Input / Output Jacks Rear In/Out Jacks Side In/Out USB1 or USB2 for Software Upgrades, Wireless Dongle, Music and Photos Rear In/Out Jacks USB 2 LAN USB 2 USB 1 LAN USB 1 Component or Composite V ideo/Audio 3 Wireless Media Box Remote Jack Head Phones MAIN BOARD Rear and Side Input/Output locations HDMI 4 J u l [...]

Downloaded From TV-Manual.com Manuals[...]

July 2010 LCD TV 47LE8500 21 Software Updates (New and Ch anged Functions) Continued Software Updates (New and Ch anged Functions) Continued Automatic Internet Software Upda te - Off : Automatic Softwar e update does not work - On : if new Software released, Software download notice appears at turn on with two choices, Yes and Remind Me Late r. Che[...]

July 2010 LCD TV 47LE8500 22 1) Create an LG_DTV fol der on the USB Flash Drive 2) Copy new software (x xx.epk) to "LG_DTV" folder. Make sure to ha ve correct software file. 3) With TV turned on, insert USB flash drive. 4) You can see the message “TV Software Upgrade” (S ee figure to right) 5) Cursor left and highlig ht "START&qu[...]

July 2010 LCD TV 47LE8500 23 Manual Software Download: Manual Software Download: Prepare the Jump Drive as described in the “USB Automatic Downloa d” section and ins e rt it into either of the USB ports. Bring up the Customer’s Me nu and scroll to “OPTIONS”. Press the “FAV” key 7 times to br ing up the Manual Download Screen. Example [...]

Downloaded From TV-Manual.com Manuals[...]

July 2010 LCD TV 47LE8500 25 Service Menu: Downloading EDID Data Pg 1 of 2 Service Menu: Downloading EDID Data Pg 1 of 2 1) Press “ADJ” key. 2) Select menu, Either “PCM EDID D/L” or AC3 EDID D/L Leandro Palmeira Downloaded From TV-Manual.com Manuals[...]

July 2010 LCD TV 47LE8500 26 Service Menu: Downloading EDID Data Pg 2 of 2 Service Menu: Downloading EDID Data Pg 2 of 2 3) Highlight “Start” then Press “Select” key. 4) When Writing appears Downloading in progress 5) Downloading Complete When PCM EDID D/L w as selected When AC3 EDID D/L w as selected Note: When PCM is downloaded, AC3 will [...]

47LE8500 Product Dimensions 47LE8500 Product Dimensions 7.7/8" 200mm 27.13/16" 706.43mm 44.3/16" 1122.68mm Remove 4 screws to remove stand fo r wall mount 19.11/16" 500mm 30.3/16" 767.08mm 1.3/8" 34.93mm 10.13/16" 274.32mm 7.7/8" 200mm 8.7/16" 214mm 11.5/8" 295mm 2.3/8" (60.32mm) Weight w/o Sta[...]

July 2010 LCD TV 47LE8500 28 DISASSEMBLY SECTION DISASSEMBLY SECTION Disassembly: This section of the manual will discuss Disassembly, Layout (Circuit Board Identification) of the 47LE8500 LCD Direct View Television. Upon completion of this section the Technician will have a better understanding of the disassembly procedur es, the layout of the pri[...]

July 2010 LCD TV 47LE8500 29 Remove the 26 screws indicated. Pay attention to the size and type of screw as there are many different types. Putting in an improper screw when reassembling may Cause damage. The Stand has to be removed before removing the back. Removing the Back Cover Removing the Back Cover The AC Cord Does Not unplu g Stand Base is [...]

July 2010 LCD TV 47LE8500 30 Circuit Board Layout Circuit Board Layout Main Board Power Supply (SMPS) Invisible Speaker Right IR/LED Board Soft Touch Keyboard Inverter Main Inverter Secondary Extension Board A (Main) Extension Board B (Main) Extension Board (Secondary) LVDS Cables Panel Connection Points Invisible Speaker Left LG Logo Board Clips h[...]

MAIN BOARD POWER SUPPLY N/C Speaker (Front Left) AC In IR LED 47LE8500 Connector Identification Diagram 47LE8500 Connector Identification Diagram n/c TFT PANEL 31 July 2010 4 7LE8500 LCD-DV Speaker (Front Right) Soft Touch Keys INVERTER (Main) INVERTER (Secondary) p/n: EBU6 0842601 for A USWLH p/n: EBU60842 609 for AUSWLUR p/n: EBU6084261 1 for AUS[...]

July 2010 LCD TV 47LE8500 32 Power Supply Power Supply Board Removal Board Removal Disconnect P201, P205, P204 and AC In SK101. P 2 0 1 Press in gently on the two tab s to release lock P201 SK101 Remove the 6 screws indicated by the arrows. AC In P 2 0 5 P 2 0 4 SK101 fits very snug into it’s connector . Press in on the two tabs to release lock B[...]

July 2010 LCD TV 47LE8500 33 Removing the Main Board Removing the Main Board Remove any tape holding down an y cables. Remove the 7 screws indicated by the arrows. N/C Flip the lo cking tab upward, pull the LVDS ribbon out. NOTE: Always check on top and behind the Large ICs. And look for a piece of Chocolate (Heat Transfer Material). Be sure to tra[...]

July 2010 LCD TV 47LE8500 34 Removing the Inverter (Main) Board Removing the Inverter (Main) Board Remove the 4 screws indicated by the arrows. Remove the Inverter. Disconnect CN1, CN2, CN3 and CN11. CN11 Use cauti on, do not al low screws to fall. NOTE: If Servicing the Board, leave the screws installed to provide sta bility and grounding. CN1 CN3[...]

July 2010 LCD TV 47LE8500 35 Removing the Inverter (Secondary) Board Removing the Inverter (Secondary) Board Remove the 4 screws indicated by the arrows. Remove the Inverter. Disconnect CN101, CN103, CN104 and CN105. CN103 Use cauti on, do not al low screws to fall. NOTE: If Servicing the Board, leave the screws installed to provide sta bility and [...]

July 2010 LCD TV 47LE8500 36 Removing Front IR Board Removing Front IR Board IR board / Intelligent Sensor p/n EBR64966401 Disconnect CON1, CON2 and CON3 connectors. C O N 2 CON3 Tab Tab CON1 Press upward on the two tabs at the top. Tilt t he board downward and lift straight up. Leandro Palmeira Downloaded From TV-Manual.com Manuals[...]

July 2010 LCD TV 47LE8500 37 TROUBLESHOOTING SECTION TROUBLESHOOTING SECTION Troubleshooting: This section of the manual will discuss troubleshooting. Upon completion of this section the Technician will have a better understanding of how to diagnosis and resolve problems. Leandro Palmeira Downloaded From TV-Manual.com Manuals[...]

Downloaded From TV-Manual.com Manuals[...]

July 2010 LCD TV 47LE8500 39 Power Supply (SMPS) Board Layout Power Supply (SMPS) Board Layout Hot Ground Shock Hazard F101 3.15A/250V STBY 2.9V Run 393.3V From Hot Gnd F501 3.15A/250V STBY 159.6V Run 392.6V From Hot Gnd F100 6.3A/250V AC Protect p/n EAY60908801 Leandro Palmeira Downloaded From TV-Manual.com Manuals[...]

Inverter Main Inverter Secondary POWER SUPPLY (SMPS) 47LE8500 Power Supply Start Up Sequence 47LE8500 Power Supply Start Up Sequence 40 Inverter On Starts the Inverters 24V B+ for the Inverters Stand By 3.5V Remote or Power Button Key MAIN BOARD RL_ON 12V Video Processing Inv On Stand By 3.5V Reg 2 5 6 6 8 2 4 5 5 6 Primary side fuse: Stand-By 159.[...]

PWM-DIM (PWM Dimming) can vary according to incoming video IRE level, OSD Backlight setting and Intelligent Sensor (room light condition). Range 0. 37 V to 3.3V. 47LE8500 Television Turn On Commands Circuit Drawing 47LE8500 Television Turn On Commands Circuit Drawing R8019 100 Ω 11.9V Gnd Gnd Gnd Gnd 0. 37 V~3.3V 3.3V ERR OUT PWR INV_CTL PWM-DIM [...]

Downloaded From TV-Manual.com Manuals[...]

July 2010 LCD TV 47LE8500 43 Continue if the 1 st test was OK. Leave original jumper in place. (3) Add another jumper between (STBY_3.5V) pin 9, 10, 11 or 12 and Pin 18 (INV_On). (4) Apply AC Power. Simulating a Power and Backligh t On command. Backlights Normal: a) If normal, the backlights should turn on. SMPS OK, Inverter OK. Backlights Abnormal[...]

July 2010 LCD TV 47LE8500 44 Diode Mode values taken with all Connectors Removed (1) PDIM Pin 20 can vary according to inco ming video IRE level, OSD Backlight setting an d then Intelligent Sens or (room light condition) Output from the Vid eo Processor IC900. Range 0. 37 V to 3.3V. . Power Supply Connector P201 Voltage and Diode Check Power Supply[...]

July 2010 LCD TV 47LE8500 45 Power Supply Connector P204 / P205 Voltage and Diode Check Power Supply Connector P204 / P205 Voltage and Diode Check Diode Mode values taken with all Connectors Removed (1) PDIM Pin 20 can vary according to in coming video IRE level, OSD Backlight setting and then Intelli gent Sensor (room light condition) Output from [...]

July 2010 LCD TV 47LE8500 46 Power Supply Connector SK101 Voltage and Diode Check Power Supply Connector SK101 Voltage and Diode Check Diode Mode values taken with all Connectors Removed AC Voltage Readings (From Hot Ground) Pins 1 and 2 for STBY and RUN. OL N EL132 OL 120Vac L EL131 Diode Check Run STBY Label Pin SK101 "SMPS" to AC IN SK[...]

July 2010 LCD TV 47LE8500 47 Power Supply F101 and F501 Voltage Checks Power Supply F101 and F501 Voltage Checks F101 F101 3.15A/250V From Hot Gnd STBY 2.9V Run 393.3V F501 F501 3.15A/250V From Hot Gnd STBY 159.6V Run 392.6V If reading the voltage on F101 right after power off, it takes a very long time to bleed down to the reading given here. Lean[...]

July 2010 LCD TV 47LE8500 48 INVERTER (LED BACKLIGHTS) SECTION INVERTER (LED BACKLIGHTS) SECTION The Inverter (Main) receives 24V from the SMPS on CN1 pins 1~5 an d Inverter (Secondary ) receives 24V on CN101 pins 1~ 5. The Inverter On (INV ON) command arriving on CN1 or CN101 pin 12 starts the Inverter drive sign als, (120Hz). P-DIM is delivered f[...]

July 2010 LCD TV 47LE8500 49 IOP Structure IOP Structure The Image below shows the actual Backlight Bars used in the 47LE8500. The Cartridges are assembled from the bot tom to the top, lik e shingles on a roof. Cartridge Bar Cartridges Removed Integrated Optic Plate Integrated Optic Plate Leandro Palmeira Downloaded From TV-Manual.com Manuals[...]

July 2010 LCD TV 47LE8500 50 IOP Structure Information IOP Structure Information 4 LEDs per/block (216 Blocks) 8 Blocks per/car tridge, 9 bars with 3 cartridges per/bar, 32 LEDs per/cartridge, 96 LE Ds per/bar . 864 LEDs total. BLU (Backlight Unit) Cartridge Bar Cartridge There are 3 Cartridges per/bar. Leandro Palmeira Downloaded From TV-Manual.co[...]

47LE8500 (IOP) Cartridge Breakdown 47LE8500 (IOP) Cartridge Breakdown 51 July 2010 50PK750 Plasma Back Metal Plate LED Bar 32 LEDs 4 LEDs per/block 8 blocks Lens (Reflector) White Sheet Light Uniformity Connector Slots Each Connector has 10 pins. 2 are B+ 13V and 8 block controls. LED Front Metal Plate The I ndi v idu al LED s can b e ch ecke d us [...]

47LE8500 TFT PANEL p/n: EAJ60874 401 LVDS To TFT Panel Backlight Blocks 9 Bars (24 Blocks Ea.) 216 Blocks V1 through V216 3 Extension Boards 9 Connectors Ea. 2 (13V) B+ pins Ea. 8 (V) Connections Ea. 216 (V) Connections 47LE8500 IOP Block Structure Information 47LE8500 IOP Block Structure Information 52 July 2010 4 7LE8500 LCD-DV CN1 LED Extension [...]

July 2010 LCD TV 47LE8500 53 47 47 ” ” Explode View of the IOP Panel Explode View of the IOP Panel 1. Case-Top Ass’y 2. TFT Panel Ass’y 3. Guide Panel 4. Sheet DBEFD 5. Sheet Prism U 6. Sheet Prism L 7. Sheet Diffuser L 8. Plate Diffuser 9. Cartridge Ass’y 10. Cover Bottom 11. Driver Boards (2) 12. Extension Boards (3) 13. FRC Flexible Ri[...]

July 2010 4 7LE8500 LCD-DV 47LE8500 Inverter Main Layout 47LE8500 Inverter Main Layout 54 F1 12A/65V U4 U5 U6 Q4 Q5 C75 A0950 105 0 C + - A0950 105 0 C + - C98 Q7 Q8 L101 L102 A0948 105 0 C + - C89 CN11 U103 L103 CN3 CN2 CN4 CN5 U10 U1 U501 U7 U3 U11 U8 U13 E C B Q10 U101 E C B Q2 E C B Q16 E C B Q11 E C B Q1 Q15 E C B E C B Q3 Q12 24.6V Gnd 3.3V 3[...]

F101 12A/65V C101 A0950 105 0 C + - A0948 105 0 C + - CN103 U103 L207 CN104 U3 E C B E C B E C B 24.6V 3.3V 3.4V CN105 U4 U5 U13 U2 U501 CN101 U101 Q106 Q105 N/C E C B E C B E C B E C B Q3 Q12 Q108 Q109 Q103 Q101 Q102 L206 Q501 July 2010 47LE8500 LCD-DV 47LE8500 Inverter Secondary Layout 47LE8500 Inverter Secondary Layout 55 12.8V 13V 24.6V 13V DO [...]

July 2010 47 LE8500 LCD-DV 47LE8500 Inverter (Main) B+ Routing 47LE8500 Inverter (Main) B+ Routing 56 F1 12A/65V U4 U5 U6 Q4 Q5 C75 A0950 105 0 C + - A0950 105 0 C + - C98 Q7 Q8 L101 L102 A0948 105 0 C + - C89 CN11 U103 L103 CN3 CN4 CN5 U10 U1 U501 U7 U3 U11 U8 U13 E C B Q10 U101 E C B Q2 E C B Q16 E C B Q11 E C B Q1 Q15 E C B E C B Q3 Q12 24.6V Gn[...]

F101 12A/65V C101 A0950 105 0 C + - A0948 105 0 C + - CN103 U103 L207 CN104 U3 E C B E C B E C B 24.6V 3.3V 3.4V CN105 U4 U5 U13 U2 U501 CN101 U101 Q106 Q105 N/C E C B E C B E C B E C B Q3 Q12 Q108 Q109 Q103 Q101 Q102 L206 Q501 July 2010 47LE8500 LCD-DV 47LE8500 Inverter (Secondary) B+ Routing 47LE8500 Inverter (Secondary) B+ Routing 57 12.8V 13V 2[...]

July 2010 LCD TV 47LE8500 58 Inverter Inverter 13V LED 13V LED B B + + DC to DC Converter Troubleshooting DC to DC Converter Troubleshooting 30V p/p 296KHz Q5, Q8 or Q106 Pin 1 13.5V p/p 296KHz Q4, Q7 or Q105 Pin 1 30V p/p 296KHz Q4, Q7 or Q105 Pin 3 1 3 2 Each of the Pin numbers for the Components listed above are the same. Q5, Q8 or Q106 Pin 3 is[...]

Maximum P-DIM Voltage 100% Cust Backlight Setting Brightness and Contrast adjust ments do not affect P-DIM The Video Processor has the ou tput that controls P-DIM. If th e Microprocessor is separate from the video processor, then the customer’s menu Backlights setting is communica ted to the video processor via I2C. Analog Dimming is not used. It[...]

July 2010 LCD TV 47LE8500 60 Inverter (Main) Fuse F1 and Inve rter (Secondary) Fuse F101 Check Inverter (Main) Fuse F1 and Inve rter (Secondary) Fuse F101 Check Top Left of the Board Just under CN1 Connector F1 (Diode Mode Check) 1.365V (Red Lead on Fuse) 0.58V (Black Lead on Fuse) Top Left of the Board Just to the right of CN101 Connector F101 (Di[...]

July 2010 LCD TV 47LE8500 61 Inverter Crystals Y1, Y501 (Main) and Y501 on (Secondary) Inform Inverter Crystals Y1, Y501 (Main) and Y501 on (Secondary) Inform ation ation Crystal Y301 Inverter (Main) Inverter (Secondary) Y501 Y501 Y1 Use Top Leg Use Bottom Leg 8Mhz Leandro Palmeira Downloaded From TV-Manual.com Manuals[...]

Downloaded From TV-Manual.com Manuals[...]

July 2010 LCD TV 47LE8500 63 LED Drive Signal and Tro ubleshooting Information LED Drive Signal and Tro ubleshooting Information Global Dimming (w hich affects every LED block at th e same time ) is accomplished by the P-DIM signal arriving on CN1 pin 11 (Inv Main) and CN101 pin 11 (Inv Seco ndary). As P-DIM voltage goes up, all drive signals will [...]

July 2010 LCD TV 47LE8500 64 Inverter Board Connector CN3 to Extension (Left) (Voltages) Inverter Board Connector CN3 to Extension (Left) (Voltages) Inverter Run voltages taken with built in test pattern full white and black screens This gives an example of how the output from an Inverter gets to the individual LED block, but there are 216 blocks ([...]

July 2010 LCD TV 47LE8500 65 Inverter (Main and Secondary) CN 1 and CN101(Voltage and Diode Ch Inverter (Main and Secondary) CN 1 and CN101(Voltage and Diode Ch eck) eck) CN1 "Inverter Main" Conn ector To P204 "SMPS" Diode Mode values taken with all Connectors Removed (1) PDIM Pin 20 can vary according to incoming video IRE leve[...]

July 2010 LCD TV 47LE8500 66 Inverter (Main) CN11 & Inverter (Secondary) CN103 (Voltage and D Inverter (Main) CN11 & Inverter (Secondary) CN103 (Voltage and D iode Check) iode Check) CN11 “Inverter Main” to “Main” P7900 Inverter Run voltages taken wi th built in test pattern Diode Mode values taken with all Connectors Removed 1.62V [...]

July 2010 LCD TV 47LE8500 67 Inverter Main and Secondary Loca l Dimming Control Signals Wavefo Inverter Main and Secondary Loca l Dimming Control Signals Wavefo rms rms For clearer details see the Interconnect Diagram Leandro Palmeira Downloaded From TV-Manual.com Manuals[...]

July 2010 LCD TV 47LE8500 68 MAIN BOARD SECTION MAIN BOARD SECTION The Main board receives it s operational B+ from th e Power Supply via P8000. There are two LVDS cable feeds that are output from the on-b oard T-CON (TFT Driver) section directly to the Panel. Th ese carry the duel 12 bit LVDS Video si gnals and the TruMot ion 60Hz duel 12 bit LVDS[...]

Downloaded From TV-Manual.com Manuals[...]

S D G July 2010 47 LE8500 LCD-DV 47LE8500 Main Layout 47LE8500 Main Layout 70 P7500 P7501 P8000 IC8005 IC8900 X1001 54Mhz MAIN BOARD p/n: EBU60842601 P7901 L8015 Rubber Q? 2 3 1 2 3 1 IC8007 IC8008 L8905 IC8903 IC8003 L8010 IC301 L8009 IC8001 IC302 L8004 IC901 IC8000 IC300 Q300 Q8004 Q8003 Q8001 Q8005 IC9102 L9100 L9102 L9101 IC9103 D9102 D9101 IC9[...]

47LE8500 Main (Front Side) Component Voltages IC300 Earphone Amp IC700 (+1.26V_TU) IC8002 (D1.8V) IC8005 (+3.3V_NORMAL) IC8902 (+1.26V_MEMC) IC9102 DC to DC Pin Pin Regulator Pin Regulator Pin Regulator Pin Regulator Pin HVDD T-CON [1] 0V [1] 0V (Gnd) [1] 5V [1] 0V (Gnd) [1] 0V (Gnd) [1] 0V (Gnd) [2] 0V [2] 1.26V (Out) [2] 3.34V (In) [2] 11.8V (In)[...]

S D G July 2010 47LE8500 LCD-DV 47LE8500 Main (Back Side) Layout 47LE8500 Main (Back Side) Layout 72 IC606 IC602 IC604 Q8000 Q8002 Rubber IC9303 IC9000 IC9101 Rubber IC8100 D8312 Q8308 Q200 Rubber D8306 Q8302 Q8305 D8309 Q8300 Q8303 IC8400 D8307 Q8301 Q8304 IC8401 IC8200 Rubber Q702 Q701 Q901 18. IF p 17. IF n 16. IF AGC 15. Reset 14. 3.3V 13. 1.26[...]

47LE8500 Main (Back Side) Component Voltages IC602 D1.8V IC8400 RGB IC8700 Wireless Q200 (1.8V_HDMI) Q8203 IR Wireless Pass Pin Regulator Pin H/V Sync Pin Buffer Pin Switch Pin 2nd Driver [1] 0V (Gnd) [1] 1.9V [1] 0V (3.3V Dongle In) S 1.83V (Out) B 0V [2] 3.29V (PWR On/Off1 Ctl) [2] 1.9V [2] 3.3V (0.3V Dongle In) G 3.35V (PWR On/Off2 Ctl) C 3.3V [[...]

July 2010 LCD TV 47LE8500 74 Main Board X9001 and X9000 Crystal Checks Main Board X9001 and X9000 Crystal Checks 25Mhz MAIN Board 1.58V 1.6V X9001 3.19V p/p 4.86V p/p IC9001 T-CON Crystal 1.56V 1.6V X9000 2.54V p/p 3.27V p/p IC9301 TruMotion / Dimming Crystal 12Mhz X9001 X9000 Runs wh en set is On Runs wh en set is On Leandro Palmeira Downloaded Fr[...]

July 2010 LCD TV 47LE8500 75 Main Board X8100 and X1001 Crystal Checks Main Board X8100 and X1001 Crystal Checks 10Mhz MAIN Board 1.95V 1.52 X8100 3.13V p/p 2.26V p/p IC900 BCM Crystal 1.52V 1.3V X1001 781mV p/p 789mV p/p IC8100 Micro Crystal 54Mhz X8100 X1001 X8101 1.75V 1.5V 1.85V p/p 2.82V p/p Either leg Either leg Either leg Runs all The time R[...]

July 2010 LCD TV 47LE8500 76 Main Board DC to DC Converter (Voltages for Panel) Checks Main Board DC to DC Converter (Voltages for Panel) Checks -5V VGL D9102 +27V VGH D9101 +3.3V VCC +16V VDD Panel 12V Location: Top Center of Board IC9103 +7.81V HVDD IC9102 B+ for IC9102 IC9103 L9102 L9104 L9100 L9101 Panel 12V Leandro Palmeira Downloaded From TV-[...]

July 2010 LCD TV 47LE8500 77 Main Board Additional Panel Voltage Checks Main Board Additional Panel Voltage Checks -4.8V (VDD-ODD) Location: Top Left of Board From IC9101 Pin 21 P7500 P7501 -4.8V (VDD-EVEN) -4.7V (VST) IC9101 Back Side of Board From IC9101 Pin 20 From IC9101 Pin 19 Leandro Palmeira Downloaded From TV-Manual.com Manuals[...]

July 2010 LCD TV 47LE8500 78 Main Board Connector P8000 to Po wer Supply Voltage and Diode Che Main Board Connector P8000 to Po wer Supply Voltage and Diode Che ck ck Diode Mode values taken with all Connectors Removed (1) PDIM Pin 20 can vary accordin g to incoming video IRE level, OSD Backlight setting an d Intelligent Sensor (room light conditio[...]

Downloaded From TV-Manual.com Manuals[...]

Downloaded From TV-Manual.com Manuals[...]

July 2010 LCD TV 47LE8500 81 Main Board P8200 to (Ft. IR/Int elligent Sensor) Voltage and Diod Main Board P8200 to (Ft. IR/Int elligent Sensor) Voltage and Diod e Check e Check Diode Mode values taken with all Connectors Removed P8200 Connector "MAIN Boar d" To P100 "IR Board" P8200 1 12 11 10 9 8 7 6 5 4 3 2 1 Pin Open 0V 0V LE[...]

July 2010 LCD TV 47LE8500 82 Main P7900 / P7901 (Voltage and Diode Check) Main P7900 / P7901 (Voltage and Diode Check) P7900 “Main” to “Inverter Main” CN11 Inverter Run voltages taken wi th built in test pattern Diode Mode values taken with all Connectors Removed 1.08V 2.99V 0V S_SCLK 10 1.08V *0.18V~0.28V 0V S_MOSI 9 1.08V 2.6V 0V S_CS_N 8[...]

July 2010 LCD TV 47LE8500 83 Main Board Connector P8800 to Speakers Voltage and Diode Check Main Board Connector P8800 to Speakers Voltage and Diode Check Diode Mode values taken with all Connectors Removed P8800 CONNECTOR "Main" to "Speakers" SPK-L(+) SPK-L(-) SPK-R(+) SPK-R(-) LABEL Open 12.3V 0V 4 Open 12.3V 0V 3 Open 12.3V 0[...]

Downloaded From TV-Manual.com Manuals[...]

July 2010 LCD TV 47LE8500 85 FRONT (IR, INTELLIGENT SENSOR and MOVING LED) SECTION FRONT (IR, INTELLIGENT SENSOR and MOVING LED) SECTION The Intelligent Sensor and IR board (located on the bo ttom left as viewed from the rear) contains the IR (Infrared Remote Sensor ) and the Intelligen t Sensor. This board also connects with the Soft Touch Key Boa[...]

July 2010 LCD TV 47LE8500 86 Front IR Board (Connections Identified) Front IR Board (Connections Identified) P100 CON1 IR board and Intelligent Sensor board To Main Board p/n EBR64966401 CON 2 CON3 To Soft Touch Key Board To Center Logo Board Leandro Palmeira Downloaded From TV-Manual.com Manuals[...]

July 2010 LCD TV 47LE8500 87 Front Board Connectors CON1, CON2 and CON3 Voltage and Diode Ch Front Board Connectors CON1, CON2 and CON3 Voltage and Diode Ch eck eck Diode Mode values taken with all Connectors Removed CON1 "Front IR" to P8200 " MAIN" Open 0V 0V LED_R/BUZZ 12 Open 3.3V 0V +3.3V_Normal 11 Gnd Gnd Gnd Gnd 10 Open 1.[...]

July 2010 LCD TV 47LE8500 88 INVISIBLE SPEAKER SECTION INVISIBLE SPEAKER SECTION The 47LE8500 contains the Invisible Speaker system. The Full Range Speakers point down ward, so there is no front viewable speake r grill or air ports. Speaker p/n EAB60961501 Installed Top View Side View Front View Leandro Palmeira Downloaded From TV-Manual.com Manual[...]

July 2010 LCD TV 47LE8500 89 INTERCONNECT DIAGRAM (11 X 17 FOLDOUT SECTION) INTERCONNECT DIAGRAM (11 X 17 FOLDOUT SECTION) This section shows the 11X17 foldout that This section shows the 11X17 foldout that ’ ’ s available in the Paper s available in the Paper and Adobe version of the Training Manual. and Adobe version of the Training Manual. T[...]

Q? L8804 L8805 P8800 P8200 Q8200 Q8201 D8306 Q8300 Q8303 Q8301 Q8304 D8307 IC8400 Q8302 Q8305 D8309 Q8700 IC8700 Q8701 Q8205 Q8203 47LE8500 INTERCONNECT DIAGRAM Intelligent Sensor Intelligent Sensor Stand-by P8200 "MAIN Bo ard" To CON1 "IR Board" Indicates Hot Ground SMPS TEST 1 P201 A PWR ON 3 1 7 5 11 9 15 13 19 17 21 4 2 8 6 [...]

42LE8500 Inverter Main a nd Secondary Local Dimming Control Signals Waveforms 42LE8500 Inverter Main and Secondary Lo cal Dimming Contro l Signals Waveforms 1V per/div 4MSes 3.66V p/p Inverter Main CN11 pin 01 Black or White Screen 1V per/div 4M Ses 3.70V p/p Inverter Main CN11 pin 02 Black Screen 1V per/div 4MSes 4.22V p/p Inverter Main CN11 pin 0[...]

Downloaded From TV-Manual.com Manuals[...]

47LE8500 47LE8500 Conclusion Conclusion Page Page This concludes the 47LE8500 training session. Direct View LCD Direct View LCD Leandro Palmeira Downloaded From TV-Manual.com Manuals[...]