TopPage LC-40D68UT SERVICE MANUAL No. S40F340D68UT/ LCD COLOR TELEVISION MODEL LC-40D68UT 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 SAFETY PRECAUTION IMPORTANT SERVICE SAFETY PRECAUTION ............................................................i PRECAUTIONS A PRENDRE LORS DE LA REPARATION ...............................................
LC-40D68UT LC-40D68UT SAFETY PRECAUTION Service Manual IMPORTANT SERVICE SAFETY PRECAUTION Service work should be performed only by qualified service technicians who are thoroughly familiar with all safety checks and the servicing guidelines which follow: WARNING • 1. For continued safety, no modification of any circuit should be attempted. Use an AC voltmeter having with 5000 ohm per volt, or higher, sensitivity or measure the AC voltage drop across the resistor.
LC-40D68UT PRECAUTIONS A PRENDRE LORS DE LA REPARATION Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux conseils suivants. AVERTISSEMENT • A l'aide de deux fils à pinces, brancher une résistance de 1.5 kΩ 10 watts en parallèle avec un condensateur de 0.15µF en série avec toutes les pièces métalliques exposées du coffret et une terre connue comme une conduite électrique ou une prise de terre branchée à la terre. 1.
LC-40D68UT PRECAUTIONS FOR USING LEAD-FREE SOLDER Employing lead-free solder • “PWBs” of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWBs and service manuals. The alphabetical character following LF shows the type of lead-free solder. Example: Indicates lead-free solder of tin, silver and copper. Indicates lead-free solder of tin, silver and copper.
LC-40D68UT LC-40D68UT OUTLINE Service Manual MAJOR SERVICE PARTS PWB UNIT Ref No. N N N N N N N Parts Code DUNTKF463FM02 DUNTKF465FM02 DUNTKE266FM02 DUNTKF096FM01 RDENCA393WJQZ 9JS-5540T04C04 9JS-1940T04001 Description MAIN Unit TERMINAL Unit KEY Unit R/C, LED Unit POWER Unit LCD CONTROL Unit INVERTER Unit OTHER UNIT Ref No. N Parts Code R1LK400D3LF31Z Description 40" LCD Panel Module Unit IC FOR EXCLUSIVE USE OF THE SERVICE Ref No.
LC-40D68UT CHAPTER 1.
LC-40D68UT CHAPTER 2.
LC-40D68UT Direct Button Operation Changing Volume You can change the volume by pressing VOL / the TV or on the remote control unit. on To increase the volume, press VOL . To decrease the volume, press VOL . 20 Audio status Output device Speaker Output Select Fixed Variable Variable sound Mute When "Output Select" is set to "Variable", the indicator on the screen changes as shown below. 60 Details on the Output Select function. MUTE Mutes the current sound output. Press MUTE.
LC-40D68UT AV MODE AUDIO AV MODE gives you several viewing options to choose from to best match the surrounding environment of the TV, which can vary due to factors like room brightness, type of program watched or the type of image input from external equipment. Press AV MODE. Current AV MODE displays. Press AV MODE again before the mode displayed on the screen disappears.
LC-40D68UT 1 Press CC. INPUT To view external source images, select the input source by pressing INPUT on the remote control unit or on the TV. This will present the Closed Caption information display. 2 Press CC while the Closed Caption information is still on the screen. Press repeatedly until you select the desired closed caption service. Air DIGITAL 22.1 Audio1 Video CC Ratings 1 Press INPUT. A list of selectable sources appears.
LC-40D68UT VIEW MODE You can select the screen size. 1 Press VIEW MODE. The View Mode menu displays. The menu lists the View Mode options selectable for the type of video signal currently being received. 2 Press VIEW MODE or / while the View Mode menu is displayed to select a desired item on the menu. You can sequentially select a View Mode that has its own aspect ratio. For 4:3 programs Example: Screen size images Side Bar S.
LC-40D68UT QUICK REFERENCE Attaching/Detaching the Stand Setting the TV on the Wall Before attaching (or detaching) the stand, unplug the AC cord. Before performing work spread cushioning over the base area to lay the TV on. This will prevent it from being damaged. CAUTION This TV should be mounted on the wall with both the AN-37AG2 (SHARP) wall mount bracket and the AN-37P30 (SHARP) attachment of the wall mount bracket. The TV cannot be mounted when with only the AN-37AG2 wall mount bracket.
LC-40D68UT Appendix Troubleshooting Problem Possible Solution • No power • Check if you pressed POWER on the remote control unit. If the indicator on the TV does not light up, press POWER on the TV. • Is the AC cord disconnected? • Has the power been turned on? • Unit cannot be operated. • External in-fluences such as lightning, static electricity, may cause improper operation.
LC-40D68UT Appendix Problem • No picture Possible Solution • • • • • Is connection to other components correct? Is correct input signal source selected after connection? Is the correct input selected? Is “On” selected in “Audio Only”? If the PC image is not displayed, check the following: - When connecting a laptop PC to the TV, check that display output mode of the PC is set to external monitor. - Check the resolution setting on the PC.
LC-40D68UT CHAPTER 3. DIMENSIONS LC-40D68UT Service Manual [1] DIMENSIONS Unit: inch (mm) 18 1/ 2 (470) 38 4 1/ 4 (108) 7/ 8 (987) 3 35/ 64 (90) 14 37/ 64 (370) 24 19/ 64 (617) 19 45/ 64 (500.35) 12 3/ 8 (314) 11 13/ 16 (300) 11 13/ 16 (300) 4 13/ 16 (122) 1 55/ 64 (47) 26 9/ 64 (664) 34 61/ 64 (887.
LC-40D68UT Service CHAPTER 4. REMOVING OF MAJOR PARTS LC-40D68UT Manual [1] REMOVING OF MAJOR PARTS 1. Removing of Stand Unit and Rear Cabinet. 1. Remove the 4 lock screws and detach the Stand Unit 2. Detach the 4 pieces VESA Hole Cover 3. Remove the 3 lock screws . . , 9 lock screws and detach the Rear Cabinet .
LC-40D68UT 2. Removing of Speaker-L/R, KEY Unit Ass’y, Bottom Cover and R/C, LED Unit. 1. Disconnect SP wire and detach the Speaker-L /Speaker-R . 2. Detach the KEY Button Cover Ass’y. 3. Detach the KEY Unit from KEY Button Cover 4. Detach the Bottom Cover 5. Detach the R/C, LED Unit and disconnect KM wire. . and disconnect RA wire.
LC-40D68UT 3. Removing of Connectors. 1. Disconnect the following connectors from MAIN Unit. (PD, LW) 2. Disconnect the following connectors from POWER Unit. (PD, LB2) 3. Disconnect the following connectors from LCD CONTROL Unit. (LW) 4. Disconnect the following connectors from INVERTER Unit.
LC-40D68UT 4. Removing of 40” LCD Panel Module Unit, TERMINAL Unit, MAIN Unit and POWER Unit. 1. Remove the 2 lock screws , 6 hooks and detach the 40” LCD Panel Module Unit 2. Remove the 8 lock screws and detach the TERMINAL Unit 3. Remove the 6 lock screws and detach the POWER Unit /MAIN Unit . . .
LC-40D68UT 5. Removing of MAIN PWB Angle-L/W, POWER PWB Angle, VESA Angle, Center Angle and Panel Angle-L/R. 1. Remove the 2 lock screws , 3 lock screws and detach the MAIN PWB Angle-L 2. Remove the 2 lock screws and detach the MAIN PWB Angle-W 3. Remove the 4 lock screws and detach the 2 pieces POWER PWB Angle 4. Remove the 4 lock screws and detach the 4 pieces VESA Angle 5. Remove the 6 lock screws and detach the 2 pieces Center Angle 6. Remove the 1 lock screw and detach the Panel Angle-L .
LC-40D68UT CHAPTER 5. ADJUSTMENT LC-40D68UT Service Manual [1] ADJUSTMENT PROCEDURE The adjustment values are set to the optimum conditions at the factory before shipping. If a value should become improper or an adjustment is required due to part replacement, make an adjustment according to the following procedure. 1. After replacement of any PWB unit and/or IC for repair, please note the following. • When replacing the following units, make sure to prepare the new units loaded with updated software.
LC-40D68UT 4. After the unit startup, the system upgrade screen as shown below appears within 10-40 seconds. D68UT 5. Even a single failure in the process will trigger the upgrade failure screen. Software Update D68UT Failed to complete update. Retry Software Update. If system update fails again, contact the customer service center. NOTE: In the event of a failure, repeat the upgrade process. If the process repeatedly fails, it is likely that the hardware need fixing. 6.
LC-40D68UT 2.3. Monitor microprocessor software version upgrade 1) Download “E8 Emulator” from Renesas Web site and install it. http://america.renesas.com/sensitivity.do? downloadId=C2003512 Product Name: E8 Emulator Software V.2.11 Release 01 for M16C, H8 Upgrade (Debugger package version) Oct.24.08 2) Connect E8 Emulator Debugger to PC from USB port. (Driver of “E8 Emulator Debugger” found in CD-ROM.) 3) Connect E8 writer to LCD’s 20PIN port. 4) Run “High Performance Embedded Workshop” in start menu.
LC-40D68UT 6) In the next page input information as specified below and click “OK”. Select “Debugger only - R8C E8 SYSTEM” Specify workspace name; any name is OK.
LC-40D68UT 8) click * . means “COMPLETE”. 9) Click “OK”.
LC-40D68UT 10)Select entries as specified below and click “OK”. Select “R8C/2A Group” Select “R5F212A8” 11)Click “ *“ (N)”. ” means “NEXT”.
LC-40D68UT 12)Click * . means “COMPLETE”. 13)In the screen below, click “Debug Settings”.
LC-40D68UT 14)Select “S-Record” and click “Add”. Select “S-Record” 15)Click “Browse” and specify the location of mot-file.
LC-40D68UT 5–9
LC-40D68UT 16)Confirm the file name of mot-file appears in the dialog entry and click “OK”. 17)From main menu, continuously click “Debug”, “Download Modules” and the mot-file location, then writing process starts.
LC-40D68UT 18)Confirm the dialog-box below appears. It means the writing process completed successfully Then shut down “High Performance Embedded Workshop”, unplug 20PIN connector, and E8 firmware updating finish.
LC-40D68UT 3. Entering and exiting the adjustment process mode 1) Before entering the adjustment process mode, the AV position RESET in the video adjustment menu. 2) While holding down the “VOL (–)” and “INPUT” keys at a time, plug in the AC cord of the main unit to turn on the power. The letter “” appears on the screen. 3) Next, hold down the “VOL (–)” and “CH ( (The “VOL (–)” and “CH ( )” keys at a time. )” keys should be pressed and held until the display appears.
LC-40D68UT 5. List of adjustment process mode menu Top hierarchical menu item Page 1 2 Item MODEL INCH SIZE INDUSTRY INIT ERROR NO RESET PUBLIC MODE V-CHIP CANADIAN VCHIP EXT CONTROL TEMPERATURE SYSCON VER ROM C5 VER ROM BOOT VER ROM I2C DATA I2C DATA SOUND TUNER DVP DVP-M2 OTHERS HOTEL POWERFIX Description Remarks (adjustment detail, etc.
LC-40D68UT SOUND Page SOUND4 SOUND5 TUNER Page TUNER1 TUNER2 Item Sub Sonic Filter Sub Sonic Filter Fc Virtual Surround Band LPF Fc Band HPF Fc AGC Switch AGC Mode AGC Gain Max AGC Gain Min AGC Threshold AGC Attack Time AGC Release Time Harmonic Switch Harmonic Mode Harmonic Gain Harmonic LPF Harmonic HPF DRC Switch DRC Threshold LPF DRC Threshold HPF DRC Ratio DRC Attack Time DRC Release Time DRC LPF Fc DRC HPF Fc Description Remarks (adjustment detail, etc.
LC-40D68UT DVP Page DVP2-2 DVP3 (M2-HD) DVP4 (M2-SD) DVP5 (M2-PC) DVP-M2 Page DVP-M2 1 DVP-M2 2 Item R6 G6 B6 R5 G5 B5 R4 G4 B4 R3 G3 B3 R2 G2 B2 R1 G1 B1 ADJ SETTING OK AUTO GAIN-OFFSET ALL AUTO GAIN-OFFSET AD R GAIN AD G GAIN AD B GAIN RGTAR GGTAR BGTAR RGCAL GGCAL BGCAL RHPOS GHPOS BHPOS RVPOS GVPOS BVPOS AUTO GAIN-OFFSET AD R GAIN AD G GAIN AD B GAIN RGTAR GGTAR BGTAR RGCAL GGCAL BGCAL RHPOS GHPOS BHPOS RVPOS GVPOS BVPOS AUTO GAIN-OFFSET AD R GAIN AD G GAIN AD B GAIN RGTAR GGTAR BGTAR RGCAL GGCAL
LC-40D68UT DVP-M2 Page DVP-M2 3 DVP-M2 4 DVP-M2 5 DVP-M2 6 Item N358 AV CONT N358 AV BRIGHT N358 AV COLOR N358 AV TINT N358 AV SHARP V1 OVER N358 AV SHARP V1 UNDER N358 AV SHARP V2 OVER N358 AV SHARP V2 UNDER N358 AV SHARP H1 OVER N358 AV SHARP H1 UNDER N358 AV SHARP H2 OVER N358 AV SHARP H2 UNDER N358 AV SHARP H3 OVER N358 AV SHARP H3 UNDER 525I CONT 525I BRIGHT 525I COLOR 525I TINT 525I SHARP V1 OVER 525I SHARP V1 UNDER 525I SHARP V2 OVER 525I SHARP V2 UNDER 525I SHARP H1 OVER 525I SHARP H1 UNDER 525I
LC-40D68UT DVP-M2 Page DVP-M2 7 DVP-M2 8 DVP-M2 9 DVP-M2 10 Item 750P CONT 750P BRIGHT 750P COLOR 750P TINT 750P SHARP V1 OVER 750P SHARP V1 UNDER 750P SHARP V2 OVER 750P SHARP V2 UNDER 750P SHARP H1 OVER 750P SHARP H1 UNDER 750P SHARP H2 OVER 750P SHARP H2 UNDER 750P SHARP H3 OVER 750P SHARP H3 UNDER 1125P CONT 1125P BRIGHT 1125P COLOR 1125P TINT 1125P SHARP V1 OVER 1125P SHARP V1 UNDER 1125P SHARP V2 OVER 1125P SHARP V2 UNDER 1125P SHARP H1 OVER 1125P SHARP H1 UNDER 1125P SHARP H2 OVER 1125P SHARP H2
LC-40D68UT DVP-M2 Page DVP-M2 11 DVP-M2 12 DVP-M2 13 DVP-M2 14 Item DTV 1125I CONT DTV 1125I BRIGHT DTV 1125I COLOR DTV 1125I TINT DTV 1125I SHARP V1 OVER DTV 1125I SHARP V1 UNDER DTV 1125I SHARP V2 OVER DTV 1125I SHARP V2 UNDER DTV 1125I SHARP H1 OVER DTV 1125I SHARP H1 UNDER DTV 1125I SHARP H2 OVER DTV 1125I SHARP H2 UNDER DTV 1125I SHARP H3 OVER DTV 1125I SHARP H3 UNDER DTV 750P CONT DTV 750P BRIGHT DTV 750P COLOR DTV 750P TINT DTV 750P SHARP V1 OVER DTV 750P SHARP V1 UNDER DTV 750P SHARP V2 OVER DTV
LC-40D68UT DVP-M2 Page DVP-M2 15 DVP-M2 16 DVP-M2 18 DVP-M2 19 Item HDMI 1125I CONT HDMI 1125I BRIGHT HDMI 1125I COLOR HDMI 1125I TINT HDMI 1125I SHARP V1 OVER HDMI 1125I SHARP V1 UNDER HDMI 1125I SHARP V2 OVER HDMI 1125I SHARP V2 UNDER HDMI 1125I SHARP H1 OVER HDMI 1125I SHARP H1 UNDER HDMI 1125I SHARP H2 OVER HDMI 1125I SHARP H2 UNDER HDMI 1125I SHARP H3 OVER HDMI 1125I SHARP H3 UNDER HDMI 750P CONT HDMI 750P BRIGHT HDMI 750P COLOR HDMI 750P TINT HDMI 750P SHARP V1 OVER HDMI 750P SHARP V1 UNDER HDMI 7
LC-40D68UT DVP-M2 Page DVP-M2 20 DVP-M2 21 DVP-M2 22 DVP-M2 23 Item HDMI PC (Dot) CONT HDMI PC (Dot) BRIGHT HDMI PC (Dot) COLOR HDMI PC (Dot) TINT HDMI PC (Dot) SHARP V1 OVER HDMI PC (Dot) SHARP V1 UNDER HDMI PC (Dot) SHARP V2 OVER HDMI PC (Dot) SHARP V2 UNDER HDMI PC (Dot) SHARP H1 OVER HDMI PC (Dot) SHARP H1 UNDER HDMI PC (Dot) SHARP H2 OVER HDMI PC (Dot) SHARP H2 UNDER HDMI PC (Dot) SHARP H3 OVER HDMI PC (Dot) SHARP H3 UNDER PC CONT PC BRIGHT PC COLOR PC TINT PC SHARP V1 OVER PC SHARP V1 UNDER PC SHA
LC-40D68UT DVP-M2 Page DVP-M2 24 DVP-M2 25 DVP-M2 27 DVP M2 28 OTHERS Page OTHERS1 OTHERS2 OTHERS3 Item SAT R SAT Y SAT G SAT C SAT B SAT M SAT R-Y SAT Y-G SAT G-C SAT C-B SAT B-M SAT M-R BRI R BRI Y BRI G BRI C BRI B BRI M BRI R-Y BRI Y-G BRI G-C BRI C-B BRI B-M BRI M-R AV BLACK STRETCH PC BLACK STRETCH COLOR TEMP High R COLOR TEMP High G COLOR TEMP High B COLOR TEMP Mid-High R COLOR TEMP Mid-High G COLOR TEMP Mid-High B COLOR TEMP Middle R COLOR TEMP Middle G COLOR TEMP Middle B COLOR TEMP Mid-Low R
LC-40D68UT 6. Video signal adjustment procedure 6.1. AD TRANSFORM LEVEL Adjustment 6.1.1 Input 1080i signal 1. Input 1080i color bar signal. Signal generation: LEADER LT448 Signal: color BAR. Setting: 02: 1080i/59.94 (30sf) H: 33.72 KHz V: 29.97Hz NOTE: Please use the third color Bar of LT448 generator. 2. Adjusting AUTO GAIN-OFFSET in page 4 of DVP3 (M2-HD) to RUN. When “AUTO GAIN-OFFSET OK” appears, this adjustment is complete. 6.1.2 Input 480i signal 1. Input 480i color bar signal. Signal: color BAR.
LC-40D68UT 6.3. Tuner/V-Chip test 1 2 Adjustment item Adjustment Adjustment conditions NTSC RF signal US-7 (AIR) ch Auto adjustment performance Adjustment procedure Feed the NTSC signal to RF ANTENNA input. Bring the cursor on [OTHERS]→[OTERRS2]→[.TUNER VCHIP TEST (*07ch)] and press [LEFT]. (*Select the channel according to the RF signal.) [.A-OK (***.**)/VM-OK] appears in blue when finished. (If [A-NG/VM-NG] appears in yellow or red, the test is incomplete.) Make sure a displacement of ±0.
LC-40D68UT 8. Initialization of factory settings 8.1. Making factory settings Use the adjustment remote controller for the factory settings. 8.1.1 Press the ENTER key at the INDUSTRY INT on Adjustment Process Page1 which is selected “YES”. 8.1.2 Sever seconds later, “SETTING COMPLETE” “TV VER *.**” appears at the center of the screen. If background of screen is green, the settings are complete. SETTING COMPLETE TV VER *.** 8.1.3 Power off the set.
LC-40D68UT [2] PUBLIC MODE SETTING PROCEDURE 1. How to start Public Mode • There are the following two ways to get the public mode setup screen displayed. In the adjustment process mode, turn on “PUBLIC MODE”. Also press the “CH ( )” and “VOL (+)” keys on the set at once and turn on the power. 1) Press the “INPUT” and “VOL (+)” keys on the set at once and turn on the power. 2) Get the password input screen displayed. Procedure ˴The input starts with the leftmost digit.
LC-40D68UT 4. Public Mode Menu The guidance is not displayed on screen. Setup procedure • To move the cursor up and down, use the “cursor UP/DOWN” key (remote controller) and “CH ( • To change the settings, use the “cursor RIGHT/LEFT” key (remote controller) and “VOL (+)/(–)” key (remote controller and set). • To save new settings, keep the cursor at “ENTER” and use “ENTER” key (remote controller and set).
LC-40D68UT 5. On Setting Items * “EZ-SETUP” discussed below indicates “EZ-SETUP after the first power-on”. 1) POWER ON FIXED Selection Default Explanation Limit in Setting Exception Remarks Selection between “Variable” and “Fixed” (loop provided) – (Variable) In “Fixed” setting, the power-off by the power key of the unit is invalidated and the image is kept being received. The power can be turned off by stopping the power supply from AC. Refer to the “Power-On Fixed” sheet.
LC-40D68UT 6) PANEL BUTTON Selection Default Explanation Limit in Setting Exception Selection between “Respond” and “No respond” (loop provided) Respond All the operations by keys (except the power key) of the unit can be invalidated. • • Adjustment process, inspection mode and hotel menu mode can be started irrespective of setting. All the keys can be used in adjustment process, inspection mode and hotel menu irrespective of setting.
LC-40D68UT 11)INPUT MODE FIXED Selection Default Explanation Limit in Setting Exception Remarks Selection between “Variable”, “Fixed”. (loop provided) – (Variable) The input mode is fixed at the input source or the channel set at the “Input mode start” in 10 and other input sources and channels can be made non-selectable. • With the execution of hotel mode, the input source is forced to change to that set by “Input mode start” and the channel switching and input switching are prohibited thereafter.
LC-40D68UT Service CHAPTER 6. TROUBLESHOOTING TABLE LC-40D68UT Manual [1] TROUBLESHOOTING TABLE No video (1) COMPOSITE: No external input video [INPUT-1] COMPOSITE: No external input video [INPUT-3] Is INPUT-1 selected on the input select menu screen? Is INPUT-3 selected on the input select menu screen? NO Select INPUT-1 on the input select menu screen for the right input signal. NO Select INPUT-3 on the input select menu screen for the right input signal.
LC-40D68UT No video (2) COMPONENT: No external input video [INPUT-1] COMPONENT: No external input video [INPUT-2] Is INPUT-1 selected on the input select menu screen? Is the INPUT-SELECT for the input signal? Is INPUT-2 selected on the input select menu screen? Is the INPUT-SELECT for the input signal? NO Select INPUT-1 on the input select menu screen for the right input signal. NO Select INPUT-2 on the input select menu screen for the right input signal.
LC-40D68UT No video (3) PC: No external input video [INPUT-4] Is INPUT-4 selected on the input select menu screen? NO Select INPUT-4 on the input select menu screen for the right input signal. Is IC602 (EEPROM) accessed by I2C, with PC connected, to read the DDC_I2C DSUB_SCL/DSUB_SDA data? Check the DDC line and its peripheral circuits. (IC602 and its peripherals).
LC-40D68UT No video (4)-1 HDMI: No external input video [INPUT-5] HDMI: No external input video [INPUT-6] Is INPUT-5 selected on the input select menu screen? Is INPUT-6 selected on the input select menu screen? NO Select INPUT-5 on the input select menu screen for the right input signal. NO Select INPUT-6 on the input select menu screen for the right input signal.
LC-40D68UT No video (4)-2 HDMI: No external input video [INPUT-7] Is INPUT-7 selected on the input select menu screen? NO YES Does the HOT PLUG detection function? Does the DDC5V signal come from pin (18) of SC1603 to pin (C17) of IC8001 (CPU)? Does the HPD signal come from pin (W19) of IC8001 to pin (19) of SC1603? NO YES Do the DDC_I2C signals come from pins (15/16) (DDC_SCL/ DDC_SDA) of SC1602 to pins (C18/B19) of IC8001 (CPU)? Are there the TMDS signal inputs at pins (D20/D19) (CLK-/+
LC-40D68UT No video (5) No video at UHF/VHF broadcast signal reception No video at digital broadcast signal reception Is the specified TV signal selected on the input select menu screen? Is there the analog video signal output (VIDEO) at pin (19) of tuner (TU1101)? NO Check the Tuner I2C lines. 1) TU1101: pin (8) (TUN_SDA_C5), pin (9) (TUN_SCL_C5) 2) SC1101/SC1201: pin (16), pin (15) 3) IC8001: pin (F2), pin (E1) Check TU1101 and its peripheral circuits.
LC-40D68UT No audio (1)-1 INPUT-1 No audio. INPUT-2 No audio. Is INPUT-1 selected on the input select menu screen? Is INPUT-2 selected on the input select menu screen? NO Refer to “:No external input video [INPUT-1]”. YES Is the audio output selected for “VARIABLE” on the menu screen? NO Refer to “:No external input video [INPUT-2]”. YES Is the audio output selected for “VARIABLE” on the menu screen? NO Set the audio output to “FIXED”.
LC-40D68UT No audio (1)-2 INPUT-3 No audio. Is INPUT-3 selected on the input select menu screen? NO Refer to “:No external input video [INPUT-3]”. YES Is the audio output selected for “VARIABLE” on the menu screen? NO Set the audio output to “FIXED”. NO Check the line between J501 and IC503. NO Check IC503/IC8001 and its peripheral circuits. (IC502, Q509, Q510, etc.
LC-40D68UT No audio (2) [PC analog audio input] INPUT-4 No audio. [HDMI analog audio input] INPUT-6 No audio. Is INPUT-4 selected on the input select menu screen? Is INPUT-6 selected on the input select menu screen? NO Refer to “:No external input video [INPUT-4]”. YES Is the audio output selected for “VARIABLE” on the menu screen? NO Refer to “:No external input video [INPUT-6]”. YES Is the audio output selected for “VARIABLE” on the menu screen? NO Set the audio output to “FIXED”.
LC-40D68UT No audio (3) INPUT-5 No audio (HDMI connected) INPUT-6 No audio (HDMI connected) INPUT-7 No audio (HDMI connected) [INPUT-5 input] Is INPUT-5 selected on the input select menu screen? [INPUT-6 input] Is INPUT-6 selected on the input select menu screen? [INPUT-7 input] Is INPUT-7 selected on the input select menu screen? NO Refer to “:No external input video [INPUT-5/6/7]”. YES [INPUT-5 input] If no video appears, refer to “No external input video (HDMI) [INPUT-5]”.
LC-40D68UT No audio (4) No audio at UHF/VHF broadcast signal reception. No audio at digital broadcast signal reception. Is TV selected on the input select menu screen? Is TV selected on the input select menu screen? NO Refer to “No video at UHF/VHF broadcast signal reception”. YES Is the audio output selected for “VARIABLE” on the menu screen? NO Refer to “No video at digital broadcast signal reception”. YES If no video appears, refer to “No video at digital broadcast signal reception”.
LC-40D68UT No monitor audio output Is the audio output from the monitor set at “VARIABLE” or “FIXED” on the menu screen? YES Are there the audio signal outputs (I2S Line) at pins (H4) (LINE_LRCLK), (J4) (LINE_MCLK), (K3) (LINE_BCLK) and (K4) (LINE_DATA) of IC8001 (CPU)? YES Does the audio signal come from pins (H4/J4/K3/K4) (LINE_LRCLK/LINE_MCLK/LINE_BCLK/LINE_DATA) of IC8001 to pins (4) (LRCLK), (1) (MCLK), (2) (BCLK) and (3) (DATA) of IC1301 (Audio DAC)? YES Does the audio signal come from pins (11)/(10
LC-40D68UT No audio signal at Digital Audio Output terminal (Analog sound heard) No INPUT-5/6/7 (HDMI) audio. No audio at digital broadcast signal reception. If no video appears, refer to “No external input video (HDMI) [INPUT-5/6/7]”. If no video appears, refer to “No video at digital broadcast signal reception”. Is there the SPDIF signal output (OPT_OUT) at pin (J3) of IC8001 (CPU)? NO Check the IC8001 and its peripheral circuits.
LC-40D68UT LED flashing timing chart for error notification. 250ms 1sec Unused 1) Power LED (Large classification) Error type Lamp error Flashes once: Fast Power error Flashes twice Communication error with the main CPU Flashes 3 times Power green LED operation (1 cycle) L: Off Pins are monitor microprocessor (IC2002) pins. Judged by the ERR_PNL port. Confirmed after 10 consecutive detections at 500 ms intervals (detected only when the backlight is on).
LC-40D68UT 2) Power error details (Power LED flashes twice and OPC LED flashes) Error type DET_POW1 error Flashes once DET_POW2 error Flashes twice DET_6V error Flashes 3 times PNL_POW0 error Flashes 5 times Main error Flashes 7 times Pins are monitor microprocessor pins unless otherwise specified. DET_POW1 error (L). Detected by the above polling. UR13V is not applied. OPC LED operation (1 cycle) H: On L: Off H: On DET_POW2 error (L). Detected by the above polling.
LC-40D68UT CHAPTER 7. OVERALL WIRING/BLOCK DIAGRAM LC-40D68UT Service Manual [1] OVERALL WIRING DIAGRAM OVERALL WIRING DIAGRAM J FFC FFC LCD Controller (AUO) [LW] 1 I 51 H Inv.
LC-40D68UT [2] SYSTEM BLOCK DIAGRAM SYSTEM BLOCK DIAGRAM CVBS L/R A9V INPUT 4/6 RGB/HDMI Audio (Mini Plug) IC503 Audio-SW TC4052BT RGB_LR [RSDS] (64p FFC) VCOM_WP [RSDS] CN1 (64p FFC) CVBS/LR YPbPr [RSDS] (64p FFC) INPUT 3 VCOM_SDA,VCOM_SCL L/R [LW] CN2 (51p Discrete) PE LR Component I [LW] P2601 (51p Discrete) YPbPr PANEL C-PWB PNL+12V SC601 (23pin BtoB) INPUT 2 CVBS/LR Component MAIN SC501 (23pin BtoB) INPUT 1 CVBS L/R [RSDS] CN3 (64p FFC) TERMINAL J SYNC_DET BU+3.
LC-40D68UT PartsGuide PARTS GUIDE No. S40F340D68UT/ LCD COLOR TELEVISION LC-40D68UT MODEL CONTENTS [1] PRINTED WIRING BOARD ASSEMBLIES [2] LCD PANEL MODULE [3] CABINET PARTS [4] SUPPLIED ACCESSORIES [5] PACKING PARTS (NOT REPLACEMENT ITEM) [6] SERVICE JIGS (USE FOR SERVICING) Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.
LC-40D68UT NO.
LC-40D68UT [3] CABINET PARTS 23 P S 3 A R KEY Unit N 3-2 3-1 26 25 C B 40" LCD Panel Module Unit 5 C 27 B 34 B 1-1 36 C M A 4 1-3 B 1-2 6 R/C, LED Unit 1 29 2 A 35 32 10 MAIN Unit TERMINAL Unit 35 E 19 9 19 32 N S Q 35 7 24 33 21 18 19 11 E L 14 14 31 13 M 33 H 35 35 L J J 15 17 8 R 16 POWER Unit 35 35 31 13 35 8 I Stand Support Ass'y J 35 J 12 15 Stand Unit X1 X2 15 3 30 31 I 15 A 35 16 Q 22 13 31 15 15 7 35 H 28 35 20
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LC-40D68UT [4] SUPPLIED ACCESSORIES X6 Remote control unit X11 “AA” size battery X2 Stand unit X5 AC cord X1 Stand support ass'y X4 Cable clamp X3 Screw ass'y X7 Enquete Card X8 X9 Operation manual X10 Connection guide NO.
LC-40D68UT [5] PACKING PARTS (NOT REPLACEMENT ITEM) X7 X8 X9 X10 S9 X3 X6 S5 X1 S7 X4 X11 S8 X5 S6 S6 S6 S1 S4 X2 S3 S6 S10 S6 S10 S2 Not Replacement item 6
LC-40D68UT NO. PARTS CODE PRICE NEW PART RANK MARK DELIVERY DESCRIPTION [5] PACKING PARTS (NOT REPLACEMENT ITEM) S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 SPAKAA520WJZZ SPAKCF434WJZZ SPAKPB219WJZZ SPAKPB422WJZZ SPAKPB423WJZZ SPAKXC881WJZZ SSAKA0101GJZZ SSAKAA032WJZZ SSAKHA036WJZZ TLABKA009WJZZ - N N N N N N N N N - Cover Sheet Packing Case Sack Wrapping Paper Wrapping Paper Packing Foam Polyethylene Bag Polyethylene Bag Polyethylene Bag Case No.
LC-40D68UT COPYRIGHT © 2010 BY SHARP CORPORATION ALL RIGHTS RESERVED. No Part of this publication may be reproduced, stored in a retrieval system, or transmitted in any from or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher. Apr. 2010 SH.
