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CONTENTS 2012 LED Hybrid TV & LCD TV Preparation for Service IP SMPS Power Board 11 Main Board 2012 LED Hybrid & LCD Models - 20 T-CON Board - 24 Factory Test Mode - 27 2012 LED Hybrid Front Cover Disassembly - 32 2012 Jog Function Control 35 2012 LED TV - 39 Disassembly Repair Preparation UN**ES8000 43 SMPS Board - 50 Main Board 2012 LED TVs - 60 T-CON Board 69 2012 moIP (Camera/MIC) Module - 82 Highly recommended other great related repair information for you: With all these great repair information, it will help you in troubleshooting and repairing electronic and the other display devices: (Please click on the ebook cover to get more details) 1) Best Selling Flat Screen TV Troubleshooting & Repairing Ebooks and Membership Sites: http://www.LCDRepairGuide.com http://www.lcd-television-repair.com/newsletter/Recommend.html 2) Other Great Electronic Repairing Ebooks: 3) Membership site: The UN EH 4000 & 5000 Series includes The new Jog Function Control with a built in Power/IR Indicator & Remote Control Sensor for these models Rear View NOTE: It’s really important to first disconnect the function Assy Cable by removing the cover jack with one screw and then disconnecting the cable Taking the rear cover off without doing so has resulted in damage to the function Assy and cable connection Pictured on right is an actual damaged PC Connector from not first removing the Jog Function connector before removing the back panel The Layout for the UN EH TV Models include the Main Board & IP/SMPS Board shown here with its two important connectors going to the Main Board and Back Light LEDS The T-CON Board is now part of the panel assembly pictured on the bottom left -This slide shows the video signal path beginning at the inputs to the Main Board through the LVDS Cable to the T-CON Board and then to the Panel Understanding this is very important to troubleshooting -To troubleshoot video problems there are internal test patterns that can be accessed in Factory mode for both the Main board, called Echo-P and the T-Con board, simply called TCON as seen here -If the T-CON Test Pattern are Noisy the T-CON Board or Panel is defective -If the T-CON Test Patterns are good but the Echo-P Test Patterns are noisy, the Main Board or LVDS Cable is defective Always check the LVDS Cable first -If the Echo-P Test Patterns are good Look for a source failure… -The Boot Logo, OSD and customer picture test are all generated on the Main Board and can also be used for testing… -If these signals are OK and the source picture is not, suspect and test the source The problem will be caused by a defective source or a bad cable or a defective input to the Main Board Swap inputs & source and cabling to determine the exact failure 73 To access the Test Patterns Access Factory Mode & Select SVC Select Test Pattern Select EchoP Pattern Set Use the right arrow key to Scroll through patterns 4.Select SOC T-CON Test Pattern Use the right arrow key to scroll through the patterns 74 The same signal Path Troubleshooting holds true for the 2011 Models The exception is the Genoa P Processor on the Main Board and its Test Patterns for referencing as well as the Napoli FRC Processor on the T-CON Board, simply use its Test Patterns for reference and testing To troubleshoot video problems or to make sure every board after the main board is working properly, the internal test patterns can be accessed in the T-Con board then moved back to the main board test patterns The Boot Logo, OSD and customer picture test should also be used for testing - Main board has the test pattern (Genoa-P) generator On the 2nd IC available in service mode -SVC > test pattern > Genoa-P (ahead of the LVDS CABLE) - “Napoli” PATTERNs (Located at FRC) available on units that have FRC circuitry 75 The Service Mode Screens for 2011 shown here are also very similar to 2012 For the Test procedure the 2011’s Genoa-P Test Patterns from the Main Board and Napoli Test Patterns from the T-CON Board are the Test references Test Procedure: Access Service Mode & Select SVC Select Test Pattern Select GenoaP Pattern Set Use the right arrow key to Scroll through patterns 4.Select Logic Pattern Sel Use the right arrow key to scroll through the patterns • If Logic is OK and GenoaP is OK the problem is normally the source or input • If the Logic is OK and GenoaP is not OK, problem is normally LVDS Cable or Main Board • If Log is not OK then the problem is normally the Logic Board (or X or Y Boards) 76 To troubleshoot video problems or to make sure every board after the main board is working properly, the internal test patterns can be accessed in the T-Con board then moved back to the main board test patterns The Boot Logo, OSD and customer picture test should also be used for testing - Main board has the test pattern (FBE) generator On the 2nd IC available in service mode -SVC > test pattern > Echo-P (ahead of the LVDS CABLE) - “FRC” PATTERNs (Located at FRC) available on units that have FRC circuitry 77 The FRC board can be tested by accessing the FRC Test pattern under the control submenu of the service mode Both of the FRC patterns are generated on the FRC board If the test patterns are displayed without error the problem is before the FRC board, either the Main board or the source 78 T-Con board failures can be all over the screen or localized (because it is responsible for which cell to light and how much intensity) TCON board failures can cause half the screen to go black or full white (since it handles each half of the screen, one side could be good and other bad) TCON Board defects not go away with content or connection If the problem disappears when the input is changed it is not the TCON board If the problem completely disappears with a darker or brighter scene the problem is not the TCON board If the screen defect appears after a period of time the TCON board can be suspected (after is heats up) Remember Defective LVDS Cables can also look like T-CON or PANEL Failures Always test and replace the LVDS Cable first 79 - Vertical or horizontal lines that are present with all inputs and all types of content can be a defective panels, but may also be a defective T-Con Board, LVDS, or Main Board Use the Test Patterns in Service Mode to Verify - Backlight errors can usually be identified by an area that is always noticeably darker -Smaller lines or imperfections in the image that are present in all modes is called delamination which requires replacing the panel 80 LCD panels use a flexible polarizer on the outside edge of the panel If the unit is hit by a object the flexible polarizer may not show damage but the inside LCD glass will break Panels showing a center point and cracks radiating from that point is impact damage Corner cracks are usually the result of rough handling Panels not crack on their own, panel damage has been tied to flying objects or transportation damage 81 82 •Built-in Camera / MIC Module includes: • - 1.3 megapixel camera • - that Make it possible to perform Motion Control & Face Recognition • Bi-directional (L&R)MIC for noise reduction makes it possible for Voice Control • - It is Skype compatible • - and a Core module for many apps for SmartHub 83 Follow procedure 84 Follow procedure 85 The Moip Camera Mic Module seen here can easily be replaced by first removing the cable connector and then it’s mounting screws 86 87 ...CONTENTS 2012 LED Hybrid TV & LCD TV Preparation for Service IP SMPS Power Board 11 Main Board 2012 LED Hybrid... - 27 2012 LED Hybrid Front Cover Disassembly - 32 2012 Jog Function Control 35 2012 LED TV ... Board - 50 Main Board 2012 LED TVs - 60 T-CON Board 69 2012 moIP (Camera/MIC) Module