Service Manual
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LC-15AV6U N46A5LC15AV6U LCD COLOR TELEVISION MODEL LC-15AV6U In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used . CONTENTS Page » IMPORTANT SERVICE SAFETY PRECAUTION 2 » SPECIFICATIONS ...5 » OPERATION MANUAL ...6 » DIMENSIONS ...8 » REMOVING OF MAJOR PARTS ...9 » ADJUSTING PROCEDURE OF EACH SECTION 12 » PUBLIC MODE SETTING PROCEDURE 22...
LC-15AV6U N46A5LC15AV6U LCD COLOR TELEVISION MODEL LC-15AV6U In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used . CONTENTS Page » IMPORTANT SERVICE SAFETY PRECAUTION 2 » SPECIFICATIONS ...5 » OPERATION MANUAL ...6 » DIMENSIONS ...8 » REMOVING OF MAJOR PARTS ...9 » ADJUSTING PROCEDURE OF EACH SECTION 12 » PUBLIC MODE SETTING PROCEDURE 22...
Service Manual
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... EXPOSED METAL PARTS CONNECT TO KNOWN EARTH GROUND ground, such as non-metallic 1.5k ohm 10W control knobs, insulation materials, cabinet backs, adjustment and compartment covers or shields, isolation resistor-capacitor networks, mechanical insulators, etc. 3. necessarily increased by qualified service technicians who are identified in the following safety checks: 1. LC-15AV6U IMPORTANT SERVICE SAFETY PRECAUTION Ë Service work should be attempted...
... EXPOSED METAL PARTS CONNECT TO KNOWN EARTH GROUND ground, such as non-metallic 1.5k ohm 10W control knobs, insulation materials, cabinet backs, adjustment and compartment covers or shields, isolation resistor-capacitor networks, mechanical insulators, etc. 3. necessarily increased by qualified service technicians who are identified in the following safety checks: 1. LC-15AV6U IMPORTANT SERVICE SAFETY PRECAUTION Ë Service work should be attempted...
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...° V: 170° 1.0 W 2 113/20 41/3 in individual units. 5 LC-15AV6U SPECIFICATIONS Items LCD panel Model Number of dots Video color systems TV Standard (CCIR) TV Tuning System TV function STEREO CATV Brightness Viewing angles Audio amplifier Speakers INPUT1 INPUT2 Terminals INPUT3/OUTPUT Antenna Headphone OSD language Power supply Power consumption Weight Display only Display with stand Operating temperature LC-15AV6U 15" Advanced Super View & BLACK TFT LCD 921,600 dots VGA N358 NTSC PLL 181 ch.
...° V: 170° 1.0 W 2 113/20 41/3 in individual units. 5 LC-15AV6U SPECIFICATIONS Items LCD panel Model Number of dots Video color systems TV Standard (CCIR) TV Tuning System TV function STEREO CATV Brightness Viewing angles Audio amplifier Speakers INPUT1 INPUT2 Terminals INPUT3/OUTPUT Antenna Headphone OSD language Power supply Power consumption Weight Display only Display with stand Operating temperature LC-15AV6U 15" Advanced Super View & BLACK TFT LCD 921,600 dots VGA N358 NTSC PLL 181 ch.
Service Manual
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... remote control. LC-15AV6U 6 OPERATION MANUAL Part Names of Main Unit The examples used throughout this operation manual provides a description based on the LC-20AV6U model. Remote sensor POWER indicator The POWER indicator lights up green when the power is off). On-screen display VOLUME 20 NOTE • Headphones are based on operation using VOL (+)/(-) on , and red when in the supplied accessories. • No sound is heard from the main unit speakers when a headphone mini-plug is set . Terminals Round lock for use...
... remote control. LC-15AV6U 6 OPERATION MANUAL Part Names of Main Unit The examples used throughout this operation manual provides a description based on the LC-20AV6U model. Remote sensor POWER indicator The POWER indicator lights up green when the power is off). On-screen display VOLUME 20 NOTE • Headphones are based on operation using VOL (+)/(-) on , and red when in the supplied accessories. • No sound is heard from the main unit speakers when a headphone mini-plug is set . Terminals Round lock for use...
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... Remote Control Preparation LC-15AV6U 7 POWER Switches the Liquid Crystal Television power on the screen. ENTER Executes a command. TV parental guidelines Example: When TV-Y7 in an area with high humidity. • Do not install or place the remote control under direct sunlight or strong lighting. Chemicals that leak from the remote control. DISPLAY Displays the receiving channel and the current time for the first time, install the two "AAA" size batteries (supplied) in the table...
... Remote Control Preparation LC-15AV6U 7 POWER Switches the Liquid Crystal Television power on the screen. ENTER Executes a command. TV parental guidelines Example: When TV-Y7 in an area with high humidity. • Do not install or place the remote control under direct sunlight or strong lighting. Chemicals that leak from the remote control. DISPLAY Displays the receiving channel and the current time for the first time, install the two "AAA" size batteries (supplied) in the table...
Service Manual
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... the adjustment process mode (bus connector) → Adjusting the common bias, TAMP and white balance (cut-off the remote controller.) [3] Key operation in the adjustment process Basic operation 3-1. Snap press: The channels are selected one . Preparations (1) Plug the AC power cord directly into a wall outlet. [1] Adjustment procedure 1-1. Hierarchical shift * When the ENTER key is selected. Selecting the receiving channels * Using the CH (Ù)/(ù) keys, turn on the menu screen and using...
... the adjustment process mode (bus connector) → Adjusting the common bias, TAMP and white balance (cut-off the remote controller.) [3] Key operation in the adjustment process Basic operation 3-1. Snap press: The channels are selected one . Preparations (1) Plug the AC power cord directly into a wall outlet. [1] Adjustment procedure 1-1. Hierarchical shift * When the ENTER key is selected. Selecting the receiving channels * Using the CH (Ù)/(ù) keys, turn on the menu screen and using...
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... of the wave be minimized. 13 Common bias adjustment 1) Feed a built-in signal. 2) Apply the specified instrument at 20 inches. 4-3. Model-by-model sending data Separately published. 5-2. ADC target level adjustment * Using the UP/DOWN keys, enter RGTAR, GGTAR, BGTAR of Service Menu Page 7 * Press CH12 of the screen. 3) Observe the instrument output on an oscilloscope. 4) Adjust the "COM BIAS" setting on the power. 4-2. LC-15AV6U 3-2.
... of the wave be minimized. 13 Common bias adjustment 1) Feed a built-in signal. 2) Apply the specified instrument at 20 inches. 4-3. Model-by-model sending data Separately published. 5-2. ADC target level adjustment * Using the UP/DOWN keys, enter RGTAR, GGTAR, BGTAR of Service Menu Page 7 * Press CH12 of the screen. 3) Observe the instrument output on an oscilloscope. 4) Adjust the "COM BIAS" setting on the power. 4-2. LC-15AV6U 3-2.
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... the screen. If not, adjust the "NTSC TAMP" setting on Adjustment Process Page 3. White balance adjustment 1) Adjustment procedure Adjust the RGB CUTOFF2 setting for white 40% first and then the RGB-GAIN setting for white 80%. (1) Adjusting the test signal [Input signal]White 80% (191 gradations) for the factory settings. 1) Hold down the remote controller's FACTORY SETTING key. 2) Several seconds later, "SETTING COMPLETE" appears at "0". Now the settings are complete. LC-15AV6U 6-2. TAMP adjustment 1) Receive the standard color bar signal. 2) See...
... the screen. If not, adjust the "NTSC TAMP" setting on Adjustment Process Page 3. White balance adjustment 1) Adjustment procedure Adjust the RGB CUTOFF2 setting for white 40% first and then the RGB-GAIN setting for white 80%. (1) Adjusting the test signal [Input signal]White 80% (191 gradations) for the factory settings. 1) Hold down the remote controller's FACTORY SETTING key. 2) Several seconds later, "SETTING COMPLETE" appears at "0". Now the settings are complete. LC-15AV6U 6-2. TAMP adjustment 1) Receive the standard color bar signal. 2) See...
Service Manual
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... CLOSED CAPTION COLOR SYSTEM 20 OPTION LANGUAGE VIEW MODE AUDIO ONLY BLUE SCREEN SLEEP TIMER WAKE UP TIMER TIMER TIME CHANNEL VOL. MENU PICTURE AV MODE BACKLIGHT AUDIO SETUP CONTRAST BRIGHTNESS COLOR TINT SHARPNESS ADVANCED COLOR TEMP. RED GREEN BLUE RESET RESET TREBLE BASS BALANCE RESET CH-SETTING EZ-SETUP LANGUAGE CH SETTING AUTO CLOCK START AIR/CABLE CH SEARCH CH MEMORY MTS INPUT3 SELECT V-CHIP BLOCK SECRET No. NO SIGNAL OFF NO OPERATION OFF PICTURE FLIP (Items other than MENU) EZ SETUP ON LAST CHANNEL 2ch...
... CLOSED CAPTION COLOR SYSTEM 20 OPTION LANGUAGE VIEW MODE AUDIO ONLY BLUE SCREEN SLEEP TIMER WAKE UP TIMER TIMER TIME CHANNEL VOL. MENU PICTURE AV MODE BACKLIGHT AUDIO SETUP CONTRAST BRIGHTNESS COLOR TINT SHARPNESS ADVANCED COLOR TEMP. RED GREEN BLUE RESET RESET TREBLE BASS BALANCE RESET CH-SETTING EZ-SETUP LANGUAGE CH SETTING AUTO CLOCK START AIR/CABLE CH SEARCH CH MEMORY MTS INPUT3 SELECT V-CHIP BLOCK SECRET No. NO SIGNAL OFF NO OPERATION OFF PICTURE FLIP (Items other than MENU) EZ SETUP ON LAST CHANNEL 2ch...
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.... LC-15AV6U LIST OF THE ADJUSTMENT PROCESS MODE MENU For calling the adjustment process mode and keying in this mode, refer back to "ADJUSTING PROCEDURE OF EACH SECTION". AUDIO ADJUSTMENT PROCESS SPECIFICATIONS Page No. Item Initial Value Function Response precautions on servicing (Do not change other items than designated.) BASIC SETTINGS 1 MODEL INCH SIZE A635A 15 MODEL NUMBER SELECT SCREEN SIZE SELECT (20-INCH AND 13/15-INCH SETTING NOT SWITCHABLE IN CASE OF DIFFERENT SYSTEMS) ERROR...
.... LC-15AV6U LIST OF THE ADJUSTMENT PROCESS MODE MENU For calling the adjustment process mode and keying in this mode, refer back to "ADJUSTING PROCEDURE OF EACH SECTION". AUDIO ADJUSTMENT PROCESS SPECIFICATIONS Page No. Item Initial Value Function Response precautions on servicing (Do not change other items than designated.) BASIC SETTINGS 1 MODEL INCH SIZE A635A 15 MODEL NUMBER SELECT SCREEN SIZE SELECT (20-INCH AND 13/15-INCH SETTING NOT SWITCHABLE IN CASE OF DIFFERENT SYSTEMS) ERROR...
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...) NOT USED EQUALIZER SETTING (WITH TV INPUT) NOT USED EQUALIZER SETTING (WITH OTHER INPUT THAN TV) NOT USED EQUALIZER SETTING (WITH TV INPUT) NOT USED EQUALIZER SETTING (WITH OTHER INPUT THAN TV) NOT USED EQUALIZER SETTING (WITH TV INPUT) NOT USED EQUALIZER SETTING (WITH OTHER INPUT THAN TV) NOT USED AUDIO ADJUSTMENT PROCESS SPECIFICATIONS Page No. LC-15AV6U Page No. Item Initial Value Function Response precautions on servicing (Do not change other items than designated.) VIDEO ADJUSTMENT DVP1...
...) NOT USED EQUALIZER SETTING (WITH TV INPUT) NOT USED EQUALIZER SETTING (WITH OTHER INPUT THAN TV) NOT USED EQUALIZER SETTING (WITH TV INPUT) NOT USED EQUALIZER SETTING (WITH OTHER INPUT THAN TV) NOT USED EQUALIZER SETTING (WITH TV INPUT) NOT USED EQUALIZER SETTING (WITH OTHER INPUT THAN TV) NOT USED AUDIO ADJUSTMENT PROCESS SPECIFICATIONS Page No. LC-15AV6U Page No. Item Initial Value Function Response precautions on servicing (Do not change other items than designated.) VIDEO ADJUSTMENT DVP1...
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...SHARP H2 LC-15AV6U Initial Value Function Response precautions on servicing (Do not change other items than designated.) 128 IMAGE SETTING (COMPOSITE, S VIDEO) NOT USED 128 BRIGHTNESS SETTING (COMPOSITE, S VIDEO) NOT USED 37 COLOR DENSITY SETTING (COMPOSITE, S VIDEO) NOT USED 128 TINT SETTING (COMPOSITE, S VIDEO) NOT USED 100 V PICTURE QUALITY SETTING (COMPOSITE, S VIDEO) NOT USED 150 H PICTURE QUALITY SETTING 1 (COMPOSITE, S VIDEO) NOT USED 150 H PICTURE QUALITY SETTING 2 (COMPOSITE, S VIDEO) NOT USED 128 IMAGE SETTING (COMPOSITE, S VIDEO) NOT USED 128 BRIGHTNESS SETTING...
...SHARP H2 LC-15AV6U Initial Value Function Response precautions on servicing (Do not change other items than designated.) 128 IMAGE SETTING (COMPOSITE, S VIDEO) NOT USED 128 BRIGHTNESS SETTING (COMPOSITE, S VIDEO) NOT USED 37 COLOR DENSITY SETTING (COMPOSITE, S VIDEO) NOT USED 128 TINT SETTING (COMPOSITE, S VIDEO) NOT USED 100 V PICTURE QUALITY SETTING (COMPOSITE, S VIDEO) NOT USED 150 H PICTURE QUALITY SETTING 1 (COMPOSITE, S VIDEO) NOT USED 150 H PICTURE QUALITY SETTING 2 (COMPOSITE, S VIDEO) NOT USED 128 IMAGE SETTING (COMPOSITE, S VIDEO) NOT USED 128 BRIGHTNESS SETTING...
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... SHARP H2 Initial Value Function Response precautions on servicing (Do not change other items than designated.) 128 IMAGE SETTING (TV) NOT USED 128 IMAGE SETTING (COMPOSITE, S VIDEO) NOT USED 128 BRIGHTNESS SETTING (TV) NOT USED 128 BRIGHTNESS SETTING (COMPOSITE, S VIDEO) NOT USED 37 COLOR DENSITY SETTING (TV) NOT USED 37 COLOR DENSITY SETTING (COMPOSITE, S VIDEO) NOT USED 128 TINT SETTING (TV) NOT USED 128 TINT SETTING (COMPOSITE, S VIDEO) NOT USED 100 V PICTURE QUALITY SETTING (TV) NOT USED 100 V PICTURE...
... SHARP H2 Initial Value Function Response precautions on servicing (Do not change other items than designated.) 128 IMAGE SETTING (TV) NOT USED 128 IMAGE SETTING (COMPOSITE, S VIDEO) NOT USED 128 BRIGHTNESS SETTING (TV) NOT USED 128 BRIGHTNESS SETTING (COMPOSITE, S VIDEO) NOT USED 37 COLOR DENSITY SETTING (TV) NOT USED 37 COLOR DENSITY SETTING (COMPOSITE, S VIDEO) NOT USED 128 TINT SETTING (TV) NOT USED 128 TINT SETTING (COMPOSITE, S VIDEO) NOT USED 100 V PICTURE QUALITY SETTING (TV) NOT USED 100 V PICTURE...
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... OFF COMP SYSTEM AUTO REMOCON CODE DISPLAYED AT THE BOTTOM DAC-RELATED GENERAL-PURPOSE NOT USED VARIABLE SETTINGS LAMP ERROR DETECT WAIT TIME NOT USED LAMP ERROR DETECT TIME NOT USED UTO GAIN SETTING FOR TV NOT USED DIMMER FREQUENCY SETTING (IN HZ) NOT USED DIMMER DUTY SETTING NOT USED INPUT LEVEL THRESHOLD FROM NOT USED BRIGHTNESS SENSOR STOP MODE TO OPERATION MODE USED FOR FIXED HOTEL MODE POWER ON NOT USED COMPONENT SIGNAL SELECT IN ADJUSTMENT PROCESS NOT USED OTHERS2 3D...
... OFF COMP SYSTEM AUTO REMOCON CODE DISPLAYED AT THE BOTTOM DAC-RELATED GENERAL-PURPOSE NOT USED VARIABLE SETTINGS LAMP ERROR DETECT WAIT TIME NOT USED LAMP ERROR DETECT TIME NOT USED UTO GAIN SETTING FOR TV NOT USED DIMMER FREQUENCY SETTING (IN HZ) NOT USED DIMMER DUTY SETTING NOT USED INPUT LEVEL THRESHOLD FROM NOT USED BRIGHTNESS SENSOR STOP MODE TO OPERATION MODE USED FOR FIXED HOTEL MODE POWER ON NOT USED COMPONENT SIGNAL SELECT IN ADJUSTMENT PROCESS NOT USED OTHERS2 3D...
Service Manual
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... [9] and [10/0] keys on the power. 2) Get the password input screen displayed. Procedure • The input starts with whatever adjustment process settings.) With any other keys are the following two ways to " ". The input position will move one digit to the right. • With all the 3 digits entered, the password will change to get the public mode setup screen displayed. 1 In the adjustment process mode, turn on the remote controller. LC-15AV6U PUBLIC MODE SETTING PROCEDURE 1.
... [9] and [10/0] keys on the power. 2) Get the password input screen displayed. Procedure • The input starts with whatever adjustment process settings.) With any other keys are the following two ways to " ". The input position will move one digit to the right. • With all the 3 digits entered, the password will change to get the public mode setup screen displayed. 1 In the adjustment process mode, turn on the remote controller. LC-15AV6U PUBLIC MODE SETTING PROCEDURE 1.
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...on fixed Maximum volume Volume fixed Volume fixed level RC button Panel button Menu button On screen display Input mode start Input mode fixed Reset Enter [Variable ] [ 60 ] [Variable ] [ 20 ] [Respond ] [Respond ] [Respond ] [Yes ] [Normal ] [Variable ] 23 Public Mode Menu The guidance is not for quitting the setup screen, but for quitting the mode itself. • Turn off "PUBLIC MODE" in the adjustment process mode. ✩ ... LC-15AV6U 2. Public Mode Setting Values • With the factory settings made, the public mode settings get initialized. (The adjustment process...
...on fixed Maximum volume Volume fixed Volume fixed level RC button Panel button Menu button On screen display Input mode start Input mode fixed Reset Enter [Variable ] [ 60 ] [Variable ] [ 20 ] [Respond ] [Respond ] [Respond ] [Yes ] [Normal ] [Variable ] 23 Public Mode Menu The guidance is not for quitting the setup screen, but for quitting the mode itself. • Turn off "PUBLIC MODE" in the adjustment process mode. ✩ ... LC-15AV6U 2. Public Mode Setting Values • With the factory settings made, the public mode settings get initialized. (The adjustment process...
Service Manual
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... are not prohibited. Brightness sensor (BACKLIGHT) and PIC. Screen display, menu, OFF-timer, ON-timer, AV MODE, screen size switching, clock setting, treble emphasis, AUDIO ONLY, sound changeover, LANGUAGE, CLOSED CAPTION • Simple input switching is displayed. (9) INPUT MODE START Selection Default Explanation About options Limit in Setting Exception Remarks Selection between "Normal" , "TV (CH~)" "INPUT 1/2/3" (loop provide) Normal In power-ON, the input source to be started or channel can be requested for menu operation remain valid. Those...
... are not prohibited. Brightness sensor (BACKLIGHT) and PIC. Screen display, menu, OFF-timer, ON-timer, AV MODE, screen size switching, clock setting, treble emphasis, AUDIO ONLY, sound changeover, LANGUAGE, CLOSED CAPTION • Simple input switching is displayed. (9) INPUT MODE START Selection Default Explanation About options Limit in Setting Exception Remarks Selection between "Normal" , "TV (CH~)" "INPUT 1/2/3" (loop provide) Normal In power-ON, the input source to be started or channel can be requested for menu operation remain valid. Those...
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... their peripheral parts. 27 No Color No TV Color No Video Color No S Video Color Make sure the microprocessor's adjustment process menu settings are normal. Yes Check all output voltage line for short or open circuit. AnRdebme fouvncetioFn7?701 and check the load side. Is Q7751 base voltage at F6700 and F6702? Accord specified. Accord specified. Yes Are there DC 18V input No...
... their peripheral parts. 27 No Color No TV Color No Video Color No S Video Color Make sure the microprocessor's adjustment process menu settings are normal. Yes Check all output voltage line for short or open circuit. AnRdebme fouvncetioFn7?701 and check the load side. Is Q7751 base voltage at F6700 and F6702? Accord specified. Accord specified. Yes Are there DC 18V input No...
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...? Yes Is the output at all No TV, video 1 and 2 output No TV output No video 1 output No video 2 output No S video output No component output TROUBLESHOOTING TABLE (Continued) Make sure the microprocessor's adjustment process menu settings are as specified. Are the input and output of No IC801 as specified? Check the line in question. Check the D-Y, D-Pb and D-Pr lines of tuner as specified? LC-15AV6U No video output No video output at pin (17...
...? Yes Is the output at all No TV, video 1 and 2 output No TV output No video 1 output No video 2 output No S video output No component output TROUBLESHOOTING TABLE (Continued) Make sure the microprocessor's adjustment process menu settings are as specified. Are the input and output of No IC801 as specified? Check the line in question. Check the D-Y, D-Pb and D-Pr lines of tuner as specified? LC-15AV6U No video output No video output at pin (17...
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No Audio Output TROUBLESHOOTING TABLE (Continued) No sound from right and left speakers Is there the lack of IC3301. Check the following control signals fed as specified (about +2V)? Do the following and check again: Yes 1 Set the monitor output to pins (4) (Rch) and (2) (Lch) of IC1301. pin (5) of sound in AC power supply and the line up the sound volume. 3 Clear the mute effect. 4 Disconnect the...
No Audio Output TROUBLESHOOTING TABLE (Continued) No sound from right and left speakers Is there the lack of IC3301. Check the following control signals fed as specified (about +2V)? Do the following and check again: Yes 1 Set the monitor output to pins (4) (Rch) and (2) (Lch) of IC1301. pin (5) of sound in AC power supply and the line up the sound volume. 3 Clear the mute effect. 4 Disconnect the...
