Service Manual Model No.: LE50D3505 CONTENTS Chapter 1. General Information 1-1. Document Information ..............3 1-2. General Guidelines..............3 1-3. Important Notice.................3 1-3-1. Follow the regulations and warnings ............. 3 1-3-2. Be careful to the electrical shock ............3 1-3-3. Electro static discharge (ESD)..............3 1-3-4.
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Service Manual Model No.: LE50D3505 4-3-2. Connector definition ................15 4-4. LCD Panel ..................16 Chapter 5. Installation Instructions 5-1. Accessories ................18 5-2. External Equipment Connections..........19 Chapter 6. Operation Instructions 6-1. Front Panel Controls..............20 6-2. Back Panel Controls ..............21 6-3. Setting Up Your Remote Control ..........22 Chapter 7.
Service Manual Model No.: LE50D3505 Chapter 1. General Information 1-1. Document Information Document format: Adobe PDF Author: Gao Bingbing Compiler: 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.
Service Manual Model No.: LE50D3505 components commonly are called Electrostatically Sensitive (ES) Devices. The following techniques should be used to help reduce the incidence of component damage caused by electros static discharge (ESD). 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.
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Service Manual Model No.: LE50D3505 1. Always unplug the receiver AC power cord from the AC power source before: a. Removing or reinstalling any component, circuit board module or any other receiver assembly. b. Disconnecting or reconnecting any receiver electrical plug or other electrical connection.
Service Manual Model No.: LE50D3505 12. Use only a grounded-tip soldering iron to solder or unsolder ES devices. 13. Use only an anti-static type solder removal device. Some solder removal devices not classified as "anti-static" can generate electrical charges sufficient to damage ES devices.
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Service Manual Model No.: LE50D3505 Caution: A “caution ” is used when there is danger that the reader, through incorrect manipulation, may damage equipment, loose data, get an unexpected result or has to restart(part of) a procedure. Warning: A “warning” is used when there is danger of personal injury.
Service Manual Model No.: LE50D3505 Chapter 2. Specification 2-1. Specification list Model LE50D3505 Screen Size 50" Aspect Ratio 16:9 Resolution 1920x1080 Brightness (cd/m² ) Contrast 3000:1 Response Time (ms) Angel of View H:178° , V:168° Color Display 16.7M OSD Language English,French,Spanish.
Service Manual Model No.: LE50D3505 Chapter 3. Disassemble and Assemble 3-1. LE50D3505 3-1-1. Remove the Stand 3-1-3. Remove the Mainboard 1. Remove the six screws indicated with red circles. 2. Remove the Mainbord. 1. Lay down the TV set .
Service Manual Model No.: LE50D3505 3-1-6. Remove the Remote Control Board And the Key Board Remove the Remote Control Board and the Key Board indicated by red circle in below picture.
Service Manual Model No.: LE50D3505 Chapter 4. Location of Controls and Components 4-1. Board Location C Panel B Board A Board Parts number Description A Board 6007460166 Power Supply Module B Board 6021041687 Mainboard C Panel LCD Panel...
Service Manual Model No.: LE50D3505 4-2. Mainboard 4-2-1. Function Description Process signal which incept from exterior equipment then translate into signal that panel can display. 4-2-2. Connector definition IR & Key Interface Inverter connector CN2 Pin number Signal name Pin number...
Service Manual Model No.: LE50D3505 4-3. Power Supply Module 4-3-1. Function Description To supply power for Mainboard, Panel. 4-3-2. Connector definition LED driver connector Mainboard power supply connector CN5 Pin number Signal name Pin number Signal name Backlight adjust connector...
Service Manual Model No.: LE50D3505 5-2. External Equipment Connections Antenna Connection Connect a DVD Player or VCR to Your TV Connect your aerial to the back of the TV into the ANTENNA IN socket. There are two ways in which you can connect a DVD player or VCR to your TV.
Service Manual Model No.: LE50D3505 Chapter 6. Operation Instructions 6-1. Front Panel Controls 5 VOL+ Press to increase the volume. POWER Press to turn the TV on and off. 6 MENU Press to select the main menu. TV channel down.
Service Manual Model No.: LE50D3505 6-2. Back Panel Controls Earphone output Coax output Line output input HDMI1 input HDMI2(MHL) input HDMI3 input input PC Audio input 10 ANT input 11 YPbPr input 12 Video in input 13 Audio in input...
Service Manual Model No.: LE50D3505 6-3. Setting Up Your Remote Control When using the remote control, aim it towards the remote sensor on the TV. POWER. INPUT. Shortcut button. HOME; Program Number Channel selection. RECALL button. VOL+/VOL-: Volume selection. CH∧/CH∨: Channel selection.
Service Manual Model No.: LE50D3505 Chapter 8. Measurements and Adjustments 8-1. Service Mode 8-1-1.How to enter into Service Mode The way to the factory mode menu: Step 1: Press Menu, Step 2: Input “8893”, System will be into the factory mode menu when 2 steps above are done.
Service Manual Model No.: LE50D3505 8-2-2. GENERAL SETTING 1)Init Flash; 2)Uart Enable:Choose on or off in Uart Enable; 3)Dbg Message Enable: Choose on or off in Dbg Message Enable; 4)Test Pattern: Choose the Pattern picture; 5)Dynamic Contrast: Choose on or off in Dynamic Contrast;...
Service Manual Model No.: LE50D3505 8-2-4. SOUND Adjust the values of Sound Mode, Volume Curve,Audio Output and True Volume in different source. 8-2-5. Panel Setting 1)LVDS Bit Mode: choose the Bit; 2)LVDS MAP: choose the MAP; 3)LVDS ODD/Even: choose ODD or Even;...
Service Manual Model No.: LE50D3505 8-3. Software Update 8-3-1. MSD3393LU software update 1. Copy the software files to a USB disk on the root directory; 2. Insert the USB disk when the AC power is off; 3. Turn on the AC power in turn to begin;...
Service Manual Model No.: LE50D3505 Chapter 9. Trouble shooting 9-1. Simple check Verify if the television is properly plugged Verify if the television is properly supplied power No picture/ No sound Verify if electricity is available. Verify if correct signals are input...
Service Manual Model No.: LE50D3505 9-3. Mainboard Failure Check No picture but have sound Check the power output Change the Power Board There’s something wrong Check the CN2 (BLO) with FRC Backlight on/off Verify if the DC/DC convertor can output the...
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Service Manual Model No.: LE50D3505 No sound but have picture Verify if the speakers are Change the speakers broken Verify if the main board has the Check the corresponding audio right input ,according to the source input circuit you connect.
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Service Manual Model No.: LE50D3505 No sound No picture Verify if the Power has Change the 5Vstb output Power supply Verify if CN4 Pin3/4 has 5V Change Power board input Verify if CN2 Pin1 has 12V Change Power board input...
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Service Manual Model No.: LE50D3505 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. Updata the software and Still having make the reboot;...
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Service Manual Model No.: LE50D3505 No color for some channel program (black and white) No color for some chann el program (black and w hite) Verify if the same Check out of picture and sound problem exists in other system of this channel...
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Service Manual Model No.: LE50D3505 How to know whether the Power board is broken? Check if the power cord co Reconnect the power cord with the nnect well? outlet or Power board. Check if the Power board Replace the Power board pls.