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SERVICE MANUAL LED TV LE50K6000SF Model No. Chassis MSD3463 WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Service Manual Model No.: Chapter 1: General Information 1-1. Table of Contents 1. General Information................1-1. Table of Contents 1-2. General Guidelines 1-3. Important Notice 1-4. How to Read this Service Manual ..................3. Location of Controls and Components........... 3-1. Board Location 3-2.
Service Manual Model No.: 1-2. General Guidelines When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed.
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Service Manual Model No.: 1-3-6 Safety Check after Repairment in the original positions, or whether there are the positions which are deteriorated around the serviced places serviced or not. Check the insulation between the antenna terminal or external metal and the AC cord plug blades. And be sure the safety of that. General Servicing Precautions 1.
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Service Manual Model No.: Electrostatically Sensitive (ES) Devices Some semiconductor (solid-state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor "chip"...
Service Manual Model No.: 1-3-8. Photo used in this manual The illustration and photos used in this Manual may not base on the final design of products, which may differ from your products in some way. 1-4. How to Read this Service Manual Using Icons: each icon is described in the table below: Note:...
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Service Manual Model No.: LE50K6000SF Model 50 inch Screen Size Aspect Ratio 16:9 Resolution 1920*1080 (GRAY TO Response Time (ms) GRAY) 160°/150° Angel of View Color Display 16.7M No. of Preset Channels 500(DTV);100(ATV) glish, Russian OSD Language Color System PAL/SECAM...
Service Manual Model No.: 3. Location of Controls and Components 3-1 Board Location Description A Board Main board A Board Main board 3-2 Main Board - 07 -...
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Service Manual Model No.: 3-2-1 Function Description: Main Board Process signal which incept from exterior equipment then translate into signal that panel can display. Main board connector Keypad and remote connector ( CN201 ) STANDBY Speaker connector (CN601) Pin number Signal name Description RSPK+...
Service Manual Model No.: 4. Disassemble and assemble 4-1 Remove the Stand Base faces upward 4-2 Remove the Back Cover unit. 4-3. Remove the adhesive tape Remove the adhesive tape indicated on the - 11 -...
Service Manual Model No.: 5. Installation Instructions 5-1 External Equipment Connections Accessories Remote control refers to user manual. Remote control refers to user manual. - 14 -...
Service Manual Model No.: 7-2. Main board failure check No picture but have sound test if PU5 Pin8 3.3V Pin1 normally Check if there is +43V at Replace PU5 PCN4 Check if there is +12V at Pin35 in CN202 Check if PQ6 Replace PQ6 PD14 PR46 PD14...
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Service Manual Model No.: AV No sound but have picture Check if there is sound input signal Check the input source Check if there is signal at C220 and C221 Check if there is signal at C601 and C602 Change U202 Check if there is signal at FB11,FB12,FB13,FB14 Change UD3 Check LD3 voltage...
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Service Manual Model No.: No sound No picture NO LED indicate Check PD15(24V) Change Mainboard Change Mainboard Check PD3(12V) Check LD22(3.3V) Change UD8 Change U107 Check C138(1.2 V) Check CD86(1.5V) Change UD7 Check C113(3.3V) Change Q101 Change mainchip Change Mainboard U202 Still having problems Change...
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Service Manual Model No.: Poor sound Poor sound Verify if sound system is Change sound correct . system For ease of use, recommend that customer format the picture and sound settings in the automatic option. Update the software and Still having make the reboot;...
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Service Manual Model No.: No color for some channel program (black and white) No color for some channel program (blac k and white) Verify if the same Check out of picture and sound problem exists in other system of this channel channels Change the channel to the right sound check out of picture...
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Service Manual Model No.: How to know whether the Power board is broken? Check if the power cord Reconnect the power cord with the connect well? outlet or Power board. EC805 whether have F800 or D803/D804/D805/D807 300V Power on and check Replace PD3 PD3 whether have 12V Still having...
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Trouble Shooting • Mainboard not work Panel not work • 1. Check the “power board “ in 1. Check the LED Back light “set up IC ” main board whether has 12V and output and input are working . 5V 5vsb output .
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Trouble Shooting Power board not work 1.Verify if the power cord connect well? Verify the power cord+5V standby is working. 3. Check if voltage of the POWER ON/OFF of the power board part is on the high level voltage ...
Service Manual Model No.: 7-3. Panel failure Failure Mode Part Name Description Phenomena Failure cause Block Defect :TCP cracking or cracking Dim or L/D :TCP Sunken V B/D Vertical bar :TCP lead cracking :ACF bonding short :Awful environment and something electric enter V Dim Vertal gray line into LCD...
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Service Manual Model No.: Part Name Description Phenomena Failure cause I n c o m i n g I n s p e c t i o n Standard Bright dot dark dot in Dot Defect pannel Bladder between Polarizer and top glass Polarizer Bubble Bladder in Polarizer...
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Service Manual Model No.: Failure Mode Part Name Description Phenomena Failure cause White Screen B/L normal, only white screen display M a y b e c a u s e d by surge current Black Screen B/L normal, and EDS only Black screen display FIIcker...
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Service Manual Model No.: Failure Mode Part Name Description Phenomena Failure cause Mechanlcal When Caused Nolse turn panel,appear b y M e c h a n i c a cacophony noise of backlight unit Ripple Connectric circle Causeed by between mechanism and pannel B/L off...
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Service Manual Model No.: Failure Mode Part Name Description Phenomena Failure cause Brightness B/L unit badness at bottom of LCM Light leakage brighter than normal B / L b r i g h t n e s s Sheet in B/L unit Mechanlcal or B/ asymmetric is uneven...