Sharp LC-52LE640U Service Manual
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Sharp LC-52LE640U Service Manual

Lcd color television
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TopPage
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its orig-
inal condition and only parts identical to those specified should be used.
IMPORTANT SERVICE SAFETY PRE-
CAUTION ............................................... . ............i
PRECAUTIONS A PRENDRE LORS DE
LA REPARATION ................................... . ...........ii
PRECAUTIONS FOR USING LEAD-FREE
SOLDER ................................................ . .......... iii
Major Service Parts ..................... . ..........iv
[1]
SPECIFICATIONS ................................. . ....... 1-1
[1]
Operation Manual .......................... . ....... 2-1
[1]
[2]
CHAPTER 4. REMOVING OF MAJOR PARTS
[1]
REMOVING OF MAJOR PARTS (LC-
52LE640U/C6400U)............................... . ....... 4-1
[2]
REMOVING OF MAJOR PARTS (LC-
60LE640U/C6400U)............................... . ....... 4-7
[3]
REMOVING OF MAJOR PARTS (LC-
70LE640U/C6400U)............................... . ..... 4-13
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-52/60/70LE640U,C6400U (1st Edition)

SERVICE MANUAL

LCD COLOR TELEVISION
MODELS
CONTENTS
[4]
The location putting on the heat measure
sheet............................................................4-19
[5]
Precautions For Assembly ............................4-20
[1]
Adjustment Procedure ......................5-1
[2]
PUBLIC MODE SETTING PROCEDURE . .....5-15
[1]
[2]
LED flashing specification at the time of an
error (Center icon LED used) ........................6-1
[3]
Troubleshooting Table ......................6-5
[1]
Major Ic Informations .........................7-1
DIAGRAM
[1]
Overall Wiring Diagram ......................8-1
[2]
System Block Diagram .........................8-2
No. S12V452LE640U
LC-52LE640U
LC-52C6400U
LC-60LE640U
LC-60C6400U
LC-70LE640U
LC-70C6400U
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
........6-1

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  • Page 1: Service Manual

    CHAPTER 7. MAJOR IC INFORMATIONS OPERATION MANUAL ........2-1 MAJOR IC INFORMATIONS ......7-1 CHAPTER 3. DIMENSIONS CHAPTER 8. OVERALL WIRING/SYSTEM BLOCK DIMENSIONS (LC-52LE640U/C6400U)..3-1 DIAGRAM DIMENSIONS (LC-60/70LE640U,C6400U) ..3-2 OVERALL WIRING DIAGRAM ......8-1 SYSTEM BLOCK DIAGRAM ......8-2 CHAPTER 4.

  • Page 2: Safety Precaution

    LC-52/60/70LE640U,C6400U (1st Edition) LC52LE640U 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 • Using two clip leads, connect a 1.5k ohm, 10 watt resistor paral- leled by a 0.15µF capacitor in series with all exposed metal cabinet 1.
  • Page 3 LC-52/60/70LE640U,C6400U (1st Edition) 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 N'entreprendre aucune modification de tout circuit.
  • Page 4 LC-52/60/70LE640U,C6400U (1st Edition) 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.
  • Page 5 POWER/DRIVE Unit (LC-52LE640U/C6400U) RUNTKA932WJQZ POWER/DRIVE Unit (LC-60LE640U/C6400U) RUNTKA933WJQZ POWER/DRIVE Unit (LC-70LE640U/C6400U) DUNTKF975FM03 LCD CONTROL Unit (LC-52LE640U/C6400U) DUNTKF975FM02 LCD CONTROL Unit (LC-60LE640U/C6400U) DUNTKF975FM01 LCD CONTROL Unit (LC-70LE640U/C6400U) NOTE: *1 Replace MAIN PWB Units (DKEYMF733FM**) in case of IC8401, IC3303 or IC8455 failure.

  • Page 6: Specifications

    The dimensional drawings are shown on the inside back cover. • As part of policy of continuous improvement, SHARP reserves the right to make design and speci cation changes for product improvement without prior notice. The performance specication figures indicated are nominal values of production units.

  • Page 7: Operation Manual

    LC-52/60/70LE640U,C6400U (1st Edition) CHAPTER 2. LC52LE640U OPERATION MANUAL Service Manual [1] OPERATION MANUAL Part Names TV (Front) OPC sensor* Remote control sensor Center Icon illumination * OPC: Optical Picture Control TV (Rear/Side) RS-232C terminal POWER PC IN terminal button MENU VIDEO 2 button terminals...
  • Page 8 LC-52/60/70LE640U,C6400U (1st Edition) Remote Control Unit 1 POWER: Switch the TV power on or enter standby. 2 TV, STB, DVD . VCR, AUDIO: Switches the remote control for TV, STB, BD, DVD, VCR and AUDIO operation. * To enter the code registration mode, you need to press an appropriate button (STB, DVD VCR or AUDIO) and DISPLAY at the same time.

  • Page 9: Quick Reference

    LC-52/60/70LE640U,C6400U (1st Edition) QUICK REFERENCE Attaching the Stand • 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 •...

  • Page 10: Chapter 3. Dimensions 1] Dimensions (Lc-52Le640U/C6400U)

    LC-52/60/70LE640U,C6400U (1st Edition) CHAPTER 3. LC52LE640U DIMENSIONS Service Manual [1] DIMENSIONS (LC-52LE640U/C6400U) Unit: inch (mm) LC-52LE640U/LC-52C6400U (26.4) (1208) (72) (1152.0) (143) (536) (333) (400) 5° (215) (159) (114) AN-52AG4 Active area Thinnest part 3 – 1...

  • Page 11: Dimensions (Lc-60/70Le640U,C6400U)

    LC-52/60/70LE640U,C6400U (1st Edition) [2] DIMENSIONS (LC-60/70LE640U,C6400U) Unit: inch (mm) LC-70LE640U/LC-70C6400U (51) (1615) (89) (1538.88) (136) (333) (536) (400) 5° (215) (137) (201) AN-52AG4 LC-60LE640U/LC-60C6400U (27.9) (74) (1385) (1329.12) (146) (536) (333) (400) 5° (169) (215) (115) AN-52AG4 Active area Thinnest part 3 –...

  • Page 12: Removing Of Major Parts (Lc 52Le640U/C6400U)

    CHAPTER 4. LC52LE640U REMOVING OF MAJOR PARTS Service Manual [1] REMOVING OF MAJOR PARTS (LC-52LE640U/C6400U) 1. Removing of Stand Unit and Rear Cabinet. 1. Remove the 4 lock screws and detach the Stand Unit 2. Remove the 1 lock screw and detach the AC Cord Cover 3.
  • Page 13 LC-52/60/70LE640U,C6400U (1st Edition) [Precautions when fixing the Rear Cabinet] When fixing the Rear Cabinet, be careful not to catch the backlight LED harness, speaker harness and other harnesses in it. • The hooks on the external wall of the Rear Cabinet are fitted in the Front Cabinet Ass’y. After putting the Rear Cabinet in place, fit the hooks securely;...

  • Page 14: Main Unit

    LC-52/60/70LE640U,C6400U (1st Edition) 2. Removing of Speaker (L/R), KEY Unit and Fixing Metal Angle. 1. Detach the Bottom Cover 2. Disconnect the SP wire. 3. Detach the Speaker (L) , Speaker (R) 4. Disconnect the RC wire. 5. Detach the KEY Unit Ass’y 6.
  • Page 15 LC-52/60/70LE640U,C6400U (1st Edition) 3. Removing of Connectors 1. Disconnect the following connectors from the MAIN Unit. (PD, LV, PL, Cl, UB) 2. Disconnect the following connectors from the POWER/DRIVE Unit. (PD, LA) 3. Disconnect the following connectors from the LCD CONTROL Unit. (LW, PL) POWER/DRIVE Unit MAIN Unit [LA]...
  • Page 16 LC-52/60/70LE640U,C6400U (1st Edition) 4. Removing of 60” LCD Panel Module Unit, LCD CONTROL Unit, MAIN Unit, POWER/DRIVE Unit. 1. Remove the 8 lock screws 2. Detach the 14 Fixing Metal Angles 3. Remove the 8 Hooks and detach the 60” LCD Panel Module Unit 4.
  • Page 17 LC-52/60/70LE640U,C6400U (1st Edition) 5. Removing of R/C OPC Unit, ICON Unit, WiFi Unit. 1. Detach the R/C OPC Unit 2. Disconnect the RA wire. 3. Remove the 1 lock screw and detach the ICON Unit 4. Disconnect the CI wire. 5.

  • Page 18: Removing Of Major Parts (Lc 60Le640U/C6400U)

    LC-52/60/70LE640U,C6400U (1st Edition) [2] REMOVING OF MAJOR PARTS (LC-60LE640U/C6400U) 1. Removing of Stand Unit and Rear Cabinet. 1. Remove the 4 lock screws and detach the Stand Unit 2. Remove the 1 lock screw and detach the AC Cord Cover 3.
  • Page 19 LC-52/60/70LE640U,C6400U (1st Edition) [Precautions when fixing the Rear Cabinet] When fixing the Rear Cabinet, be careful not to catch the backlight LED harness, speaker harness and other harnesses in it. • The hooks on the external wall of the Rear Cabinet are fitted in the Front Cabinet Ass’y. After putting the Rear Cabinet in place, fit the hooks securely;...
  • Page 20 LC-52/60/70LE640U,C6400U (1st Edition) 2. Removing of Speaker (L/R), KEY Unit and Fixing Metal Angle. 1. Detach the Speaker (L) , Speaker (R) 2. Disconnect the SP wire. 3. Disconnect the RC wire. 4. Detach the KEY Unit Ass’y 5. Disconnect the KM wire. 6.
  • Page 21 LC-52/60/70LE640U,C6400U (1st Edition) 3. Removing of Connectors 1. Disconnect the following connectors from the MAIN Unit. (PD, LV, PL, Cl, UB) 2. Disconnect the following connectors from the POWER/DRIVE Unit. (PD, LA) 3. Disconnect the following connectors from the LCD CONTROL Unit. (LV, PL) 4 –...
  • Page 22 LC-52/60/70LE640U,C6400U (1st Edition) 4. Removing of 60” LCD Panel Module Unit, LCD CONTROL Unit, MAIN Unit, POWER/DRIVE Unit. 1. Remove the 21 Hooks and detach the 60” LCD Panel Module Unit 2. Remove the 2 Connecting Cords , 2 Ferrite Cores and 6 lock screws and detach the LCD CONTROL Unit 3.
  • Page 23 LC-52/60/70LE640U,C6400U (1st Edition) 5. Removing of R/C OPC Unit, ICON Unit, WiFi Unit. 1. Detach the R/C OPC Unit 2. Disconnect the RA wire. 3. Detach the ICON Unit 4. Disconnect the CI wire. 5. Detach the Wi-Fi Unit 6. Disconnect the UB wire. 4 –...

  • Page 24: Removing Of Major Parts (Lc 70Le640U/C6400U)

    LC-52/60/70LE640U,C6400U (1st Edition) [3] REMOVING OF MAJOR PARTS (LC-70LE640U/C6400U) 1. Removing of Stand Unit and Rear Cabinet Ass’y. 1. Remove the 4 lock screws and detach the Stand Unit 2. Remove the 1 lock screw and detach the AC Cord Cover 3.
  • Page 25 LC-52/60/70LE640U,C6400U (1st Edition) [Precautions for assembly] Push Push Push CAUTION Set it so that there may not be a clearance between Front Cabinet Ass'y and Rear Cabinet Ass'y. Push Push The fingernail is surely fixed when Rear cabinet Ass'y is There is a gap without the fingernail fitting firmly pushed, and the gap disappears.
  • Page 26 LC-52/60/70LE640U,C6400U (1st Edition) 2. Removing of Speaker (L/R) and KEY Unit. 1. Disconnect the SP wire. 2. Remove the 2 lock screws and detach the Speaker (L) , Speaker (R) 3. Disconnect the RC wire. 4. Detach the KEY Unit Ass’y 5.
  • Page 27 LC-52/60/70LE640U,C6400U (1st Edition) 3. Removing of Connectors 1. Disconnect the following connectors from the MAIN Unit. (PD, LV, PL, Cl, UB) 2. Disconnect the following connectors from the POWER/DRIVE Unit. (PD, LA) 3. Disconnect the following connectors from the LCD CONTROL Unit. (LV, PL) 4 –...
  • Page 28 LC-52/60/70LE640U,C6400U (1st Edition) 4. Removing of 70” LCD Panel Module Unit, LCD CONTROL Unit, MAIN Unit, POWER Unit. 1. Remove the 24 Hooks and detach the 70” LCD Panel Module Unit 2. Remove the 2 Connecting Cords , 2 Ferrite Cores , 6 lock screws and detach the LCD CONTROL Unit 3.
  • Page 29 LC-52/60/70LE640U,C6400U (1st Edition) 5. Removing of R/C OPC Unit, ICON Unit, WiFi Unit. 1. Detach the R/C OPC Unit 2. Disconnect the RA wire. 3. Detach the ICON Unit 4. Disconnect the CI wire. 5. Detach the Wi-Fi Unit 6. Disconnect the UB wire. 4 –...

  • Page 30: The Location Putting On The Heat Measure Sheet

    LC-52/60/70LE640U,C6400U (1st Edition) [4] The location putting on the heat measure sheet 1. MAIN PWB Unit • LC-60LE640U/C6400U Put PSPAZC805WJKZ along these ruled lines. • LC-70LE640U/6400U PSPAZC741WJKZ 2. LCD Control Unit (LC-60LE640U/C6400U) PSPAZC854WJKZ TCON CPU COOLER 4 – 19...

  • Page 31: Precautions For Assembly

    LC-52/60/70LE640U,C6400U (1st Edition) [5] Precautions for assembly 1. Points to be checked and precautions when servicing the unit Mount the main PWB Ass’y on the backlight chassis and check that the EMI-prevention parts are not peeled and twisted from the access holes. (The EMI-prevention parts, conductive nonwoven fabric gaskets, must be seen from the access holes.) [Countermeasure] Attach the conductive nonwoven fabric gaskets on the shielded case on the main PWB.
  • Page 32 LC-52/60/70LE640U,C6400U (1st Edition) • LC-70LE640U/C6400U PMLT-A691WJQZ PMLT-A690WJQZ PMLT-A690WJQZ PMLT-A691WJQZ 4 – 21...
  • Page 33 LC-52/60/70LE640U,C6400U (1st Edition) State where the main PWB and shielded case are assembled Access hole Access hole The following is a drawing mounting the main PWB Ass’y on the backlight chassis. (The parts indicated by -> are the access holes for confirmation.) (Main PWB Ass’y =>...

  • Page 34: Chapter 5. Adjustment 1] Adjustment 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. MAIN Unit: DKEYMF733FM84 (LC-52LE640U/C6400U) MAIN Unit: DKEYMF733FM83 (LC-60LE640U/C6400U)
  • Page 35 LC-52/60/70LE640U,C6400U (1st Edition) 2.2.3 How to upgrade the software 1. Unplug the AC cord. 2. Insert the USB Memory for version upgrade into the service socket. 3. Plug in the AC cord with power button pressed down. 4. After 5 seconds, unpress the power button. 5.
  • Page 36 LC-52/60/70LE640U,C6400U (1st Edition) 2.3. Monitor microprocessor software version upgrade Create the USB memory for monitor microprocessor software version upgrade in the same manner as explained in the “Main software version upgrade”. Copy the file BSMK_LE640_xxx.USB and BM2SMxxx.SMB. (named temporarily) for monitor microprocessor software version upgrade to the USB memory.
  • Page 37 LC-52/60/70LE640U,C6400U (1st Edition) 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 “<K>”...
  • Page 38 LC-52/60/70LE640U,C6400U (1st Edition) 5. List of adjustment process mode menu The character string in brackets [ ] will appear as a page title in the adjustment process menu header. Page Line Item Description Remarks (adjustment detail, etc.) MAIN Version Main software version BOOT Version Monitor / Monitor BOOT Version Monitor and monitor boot software version...
  • Page 39 LC-52/60/70LE640U,C6400U (1st Edition) Page Line Item Description Remarks (adjustment detail, etc.) ANALOG RGB ADJ Analog RGB picture level adjustment R A_GAIN G A_GAIN B A_GAIN R OFFSET G OFFSET B OFFSET RGB_A_CLAMP VCOM ADJ VCOM adjustment value LEV1 Standard value 1 Adjustment gradation setting.
  • Page 40 LC-52/60/70LE640U,C6400U (1st Edition) Page Line Item Description Remarks (adjustment detail, etc.) MODE SELECT POS SELECT POS MIN POS MID1 POS MID2 POS MID3 POS MID4 POS MID5 POS MID6 POS MAX CD MIN CD MID1 CD MID2 CD MID3 CD MID4 CD MID5 CD MID6 CD MAX...
  • Page 41 Writing setting values to EEPROM EEP RECOVER Reading setting values from EEPROM MODEL NAME PANEL SIZE SETTING FOR ADJ VERUP FLAG ENABLE SHARP RC ENABLE PANEL LIMIT PANEL RANGE LIMIT SHORT CHECK MODE SHORT CHECK CURRENT CURRENT SW TEST NETWORK UPDATE...
  • Page 42 LC-52/60/70LE640U,C6400U (1st Edition) *1 Details of P1.12 (NORMAL STANDBY CAUSE) When TV set is powered off due to normal use or product specification, the last cause will be recorded. The code, character string and description for the standby cause are below. If you power off by remote, the cause will not be recorded.

  • Page 43: Special Features

    LC-52/60/70LE640U,C6400U (1st Edition) 6. Special features * STANDBY CAUSE (Page 1/28) Display of a cause (code) of the last standby The cause of the last standby is recorded in EEPROM whenever possible. Checking this code will be useful in finding a problem when you repair the troubled set. * EEP SAVE (Page 28/28) Storage of EEP adjustment value * EEP RECOVER (Page 28/28)
  • Page 44 LC-52/60/70LE640U,C6400U (1st Edition) 8.2. Image adjustment 8.2.1 Device check Before adjustment, check that the adjustment jig and signal source are set for Sharp LCD US. Signal generator level adjustment check (Adjust to the standard value level.) • Composite signal: 0.714Vp-p ± 0.02Vp-p (Pedestal to white) •...
  • Page 45 LC-52/60/70LE640U,C6400U (1st Edition) 8.2.5 Component 33K signal adjustment Adjustment point Adjustment conditions Adjustment procedure • Send the 100% color bar signal to the component input. Setting 1080i signal Color saturation: 100% 1080i 100% color bar 100% white 0% black Automatic adjustment exe- Point the cursor to [ COMP33K ADJ(INPUT1)] and press the [Enter] key.

  • Page 46: White Balance Adjustment

    LC-52/60/70LE640U,C6400U (1st Edition) 9. White balance adjustment 9.1. White balance adjustment (For details about the adjustment procedure, refer to “Kameyama Model Integrated Monitor WB Adjustment Specification V1.92”.) Adjustment Adjustment conditions Adjustment procedure point Setting 1) Set the unit to the following conditions. AV MODE: [DYNAMIC] Backlight: +16 Active Backlight: OFF...

  • Page 47: Software Version

    LC-52/60/70LE640U,C6400U (1st Edition) 10. Key writing 10.1. EDID writing (Main PWB: QPWBXF733WJN2) 1. Write the MAC key data on IC8455 mounted on the main PWB. 2. Carry out thorough data management to avoid redundant writing of data. If the IC where data is written is damaged, replace the PWB since only the IC cannot be changed. 10.2.

  • Page 48: Public Mode Setting Procedure

    LC-52/60/70LE640U,C6400U (1st Edition) [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 ( )”...
  • Page 49 LC-52/60/70LE640U,C6400U (1st Edition) 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 ( )” key (remote controller and set). •...
  • Page 50 LC-52/60/70LE640U,C6400U (1st Edition) 5. On Setting Items * “EZ-SETUP” discussed below indicates “EZ-SETUP after the first power-on”. 1) POWER ON FIXED Selection Selection between “Variable” and “Fixed” (loop provided) Default – (Variable) Explanation 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.
  • Page 51 LC-52/60/70LE640U,C6400U (1st Edition) 6) PANEL BUTTON Selection Selection between “Respond” and “No respond” (loop provided) Default Respond Explanation All the operations by keys (except the power key) of the unit can be invalidated. Limit in Setting • Adjustment process, inspection mode and hotel menu mode can be started irrespective of setting. Exception •...
  • Page 52 LC-52/60/70LE640U,C6400U (1st Edition) 10)INPUT MODE FIXED Selection Selection between “Variable”, “Fixed”, “ACON (AC CTRL)” and “AC/RCON (AC/RC CTRL)” (loop provided) Default – (Variable) • At the “Fixed” setting, the TV set gets started with the settings of “Input mode start”, and then any other channels and inputs Explanation are not accepted.
  • Page 53 LC-52/60/70LE640U,C6400U (1st Edition) 15)PUBLIC MODE (ON/OFF) Selection Selection between “ON” and “OFF” (loop provided) Default Explanation In case of “ON”, public mode settings are effected. Limit in Setting None Exception None Remarks The public-mode settings are operable only when this item is set at ON. 5 –...

  • Page 54: Led Flashing Specification At The Time Of An Error (Center Icon Led Used)

    LC-52/60/70LE640U,C6400U (1st Edition) CHAPTER 6. LC52LE640U TROUBLESHOOTING TABLE Service Manual [1] Failure diagnosis by LED in front of cabinet START Is the Center Icon flashing? Check "[2] LED flashing specification at the time of an error (Center icon LED used)". Is the Center Icon lighting Check Power-Unit and AC-cable.
  • Page 55 LC-52/60/70LE640U,C6400U (1st Edition) Table 1. Concrete flashing pattern Detail display Item Cause Slow flashing Fast flashing Inverter/Lamp system failure Flashes once Flashes once Lamp error Power PWB Flashes twice Flash once Power supply error 2 (*2) AC_DET error failure Flash twice Power supply error 2 (*2) UR+13V error (Power failure, etc.) Flash 3 times...
  • Page 56 LC-52/60/70LE640U,C6400U (1st Edition) LED flashing timing chart at the time of an error 100ms 400ms 1.6sec 1) Inverter/Lamp failure details (Flashes slowly once and flashes fast) Note Pins are monitor microcomputer pins unless other- Error type Center icon LED operation wise specified.
  • Page 57 LC-52/60/70LE640U,C6400U (1st Edition) 4) Other failure details (Flashes slowly 4 times and flashes fast) Note Pins are monitor microcomputer pins unless other- Error type Center icon LED operation wise specified. Monitor temperature H: On If the panel temperature is 60°C or more for 15 seconds failure or more in a row, CAUTION appears on the OSD Flashes fast once...

  • Page 58: Troubleshooting Table

    LC-52/60/70LE640U,C6400U (1st Edition) [3] TROUBLESHOOTING TABLE • LED Backlight does not turn on. If it is not an error of power supply/LED driver, It is start-up in the lamp error disregard mode. Do you start? When main unit is replaced, does it start normally? Replace main unit.
  • Page 59 LC-52/60/70LE640U,C6400U (1st Edition) Trouble Shooting Panel Module When C-S FPC is replaced, does screen display normally? Replace C-S FPC. When C-PWB is replaced, does screen display normally? Replace C-PWB. (Adjust “VCOM ADJ” after replace C-PWB) Replace Panel HIRAKI. (Adjust “VCOM ADJ” after replace Panel HIRAKI) 6 –...
  • Page 60 LC-52/60/70LE640U,C6400U (1st Edition) • Picture does not display. No video (1) COMPOSITE: No external input video [INPUT-6] COMPOSITE: No external input video [INPUT-7] Is INPUT-6 selected on the input select menu screen? Is INPUT-7 selected on the input select menu screen? Select INPUT-6 on the input select menu Select INPUT-7 on the input select menu screen for the right input signal.
  • Page 61 LC-52/60/70LE640U,C6400U (1st Edition) No video (2) COMPONENT: No external input video [INPUT-5] Is INPUT-5 selected on the input select menu screen? Is the INPUT-SELECT for the input signal? Select INPUT-5 on the input select menu screen for the right input signal. Does the COMP1_PLUG detection function? Check the line between pin (17) of input terminal (J510) and pin (L32) of IC3303 (CPU).
  • Page 62 LC-52/60/70LE640U,C6400U (1st Edition) No video (3) 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 (CVBS) at pin (9) of Are there the IF signal outputs (D_IF+/-) at the pins (11) and (10) of tuner tuner (TU1105)? (TU1105)?
  • Page 63 LC-52/60/70LE640U,C6400U (1st Edition) No video (4) PC: No external input video [INPUT-8] Is INPUT-8 selected on the input select menu screen? Select INPUT-8 on the input select menu screen for the right input signal. Is IC1504 (HDMI switch) accessed by I2C, with PC connected, to read the VGA_SCL/SDA data? Check the DDC line and its peripheral circuits.
  • Page 64 LC-52/60/70LE640U,C6400U (1st Edition) <HDMI input> No video (5)-1 HDMI: No external input video [INPUT-1] Is INPUT-1 selected on the input select menu screen? Select INPUT-1 on the input select menu screen for the right input signal. Does the HOT PLUG detection function? Check the line between the input terminals of SC1503 and IC1504.
  • Page 65 LC-52/60/70LE640U,C6400U (1st Edition) <HDMI input> No video (5)-2 HDMI: No external input video [INPUT-2] Is INPUT-2 selected on the input select menu screen? Select INPUT-2 on the input select menu screen for the right input signal. Does the HOT PLUG detection function? Check the line between the input terminals of SC1502 and IC1504.
  • Page 66 LC-52/60/70LE640U,C6400U (1st Edition) <HDMI input> No video (5)-3 HDMI: No external input video [INPUT-3] Is INPUT-3 selected on the input select menu screen? Select INPUT-3 on the input select menu screen for the right input signal. Does the HOT PLUG detection function? Check the line between the input terminals of SC1501 and IC1504.
  • Page 67 LC-52/60/70LE640U,C6400U (1st Edition) <HDMI input> No video (5)-4 HDMI: No external input video [INPUT-4] Is INPUT-4 selected on the input select menu screen? Select INPUT-4 on the input select menu screen for the right input signal. Does the HOT PLUG detection function? Check the line between the input terminals of SC1505 and IC1504.
  • Page 68 LC-52/60/70LE640U,C6400U (1st Edition) • Does not sound. No audio (1) INPUT-6 No audio. INPUT-7 No audio. INPUT-5 No audio. Is INPUT-6 selected on the input select Is INPUT-7 selected on the input select Is INPUT-5 selected on the input select menu screen? menu screen? menu screen?
  • Page 69 LC-52/60/70LE640U,C6400U (1st Edition) No audio (2) [PC analog audio input] INPUT-8 No audio. [HDMI analog audio input] INPUT-2 No audio. Is INPUT-8 selected on the input select menu screen? Is INPUT-2 selected on the input select menu screen? Refer to “: No external input video [INPUT-8]”. Refer to “: No external input video [INPUT-2]”.
  • Page 70 LC-52/60/70LE640U,C6400U (1st Edition) No audio (3) 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? Refer to “No video at UHF/VHF broadcast signal Refer to “No video at digital broadcast signal reception”.
  • Page 71 LC-52/60/70LE640U,C6400U (1st Edition) No audio (4) INPUT-1 No audio (HDMI connected) INPUT-2 No audio (HDMI connected) INPUT-3 No audio (HDMI connected) INPUT-4 No audio (HDMI connected) [INPUT-1 input] Is INPUT-1 selected on the input select menu screen? [INPUT-2 input] Is INPUT-2 selected on the input select menu screen? [INPUT-3 input] Is INPUT-3 selected on the input select menu screen? [INPUT-4 input]...
  • Page 72 LC-52/60/70LE640U,C6400U (1st Edition) No audio signal at Digital Audio Output terminal (Analog sound heard) No INPUT-1/2/3/4 (HDMI) audio. No audio at digital broadcast signal reception. If no video appears, refer to “No external input video (HDMI) If no video appears, refer to “No video at digital broadcast signal [INPUT-1/2/3/4]”.
  • Page 73 LC-52/60/70LE640U,C6400U (1st Edition) No monitor audio output Is the audio output from the monitor set at “VARIABLE” or “FIXED” on the menu screen? Check IC3303 (CPU) and its peripheral circuits. Are there the audio signal outputs at pins (AJ31) (HP_MON_L) and (AJ32) (HP_MON_R) of IC3303 (CPU)? Check IC3303 (CPU) and its peripheral circuits.
  • Page 74 LC-52/60/70LE640U,C6400U (1st Edition) CHAPTER 7. LC52LE640U MAJOR IC INFORMATIONS Service Manual [1] MAJOR IC INFORMATIONS 1. MAJOR IC INFORMATIONS 1.1. IC1504 (VHiSii9387+-1Q) This IC is 5 input and 1 output HDMI port processor. The TMDS cores run at 2.25Gbps. (Supports video resolutions up to 1080p, 60Hz, 12bit.) The adaptive equalizer provides long cable support.
  • Page 75 LC-52/60/70LE640U,C6400U (1st Edition) 1.11. IC9505 (VHiPD720114-1Q) This IC is a USB hub controller. It has one upstream port and four downstream ports, 7 – 2...
  • Page 76 LC-52/60/70LE640U,C6400U (1st Edition) ― MEMO ― 7 – 3...

  • Page 77: System Block Diagram

    LC-52/60/70LE640U,C6400U (1st Edition) LC52LE640U CHAPTER 8. OVERALL WIRING/SYSTEM BLOCK DIAGRAM Service Manual [1] OVERALL WIRING DIAGRAM in module POWER/LED drive Unit 52" RUNTKA931WJQZ 60" RUNTKA932WJQZ 70" RUNTKA933WJQZ Full-HD Panel 1920×1080 52"R1LK520D3GV00Z 60"R1LK600D3GV00Z 70"R1LK695D3GW80D MAIN Unit DKEYMF733FM** KEY Unit DUNTKF800FM53 TUNER LCD_CTL Unit DUNTKF975FM** ETHER...
  • Page 78 LC-52/60/70LE640U,C6400U (1st Edition) [2] SYSTEM BLOCK DIAGRAM CVBS2_IN CVBS MAIN INPUT CVBS2_IN_L/R T-CON VBO_LOCKN CVBS CVBS1_IN VBO_HTPDN INPUT I2C0_SCL/SDA T-CON CVBS1_IN_L/R PWM1 I2C_READY MAIN PNL_EN N_PNL_EN PWM1 COMP1_IN_L/R POWER INPUT PNL_WP DIMMER Component COMP1_Y/Pb/Pr Driver) OFL1_FRCRST I2C_0(400KHz) I2C_0 (400KHz) +13V SPEAKER P2701 IC2703...

  • Page 79: Parts Guide

    LC-52LE640U LC-52C6400U LC-60LE640U LC-60C6400U LC-70LE640U LC-70C6400U MODELS CONTENTS PRINTED WIRING BOARD SUPPLIED ACCESSORIES/ ASSEMBLIES PACKING PARTS (LC-52LE640U/ C6400U) LCD PANEL MODULE UNIT SUPPLIED ACCESSORIES/ PACKING PARTS (LC-60LE640U/ CABINET PARTS (LC-52LE640U/ C6400U) C6400U) SUPPLIED ACCESSORIES/ CABINET PARTS (LC-60LE640U/ PACKING PARTS (LC-70LE640U/...
  • Page 80 RUNTKA931WJQZ PWER/DRIVE Unit (LC-60LE640U/C6400U) RUNTKA932WJQZ PWER/DRIVE Unit (LC-70LE640U/C6400U) RUNTKA933WJQZ [2] LCD PANEL MODULE UNIT 52" LCD Panel Module Unit (LC-52LE640U/C6400U) (LK520D3GV00Z) R1LK520D3GV00Z 60" LCD Panel Module Unit (LC-60LE640U/C6400U) (LK600D3GV00Z) R1LK600D3GV00Z 70" LCD Panel Module Unit (LC-70LE640U/C6400U) (LK695D3GW80Z) R1LK695D3GW80Z [3] CABINET PARTS (LC-52LE640U/C6400U)
  • Page 81 LC-52/60/70LE640U,C6400U (1st Edition) [4] CABINET PARTS (LC-60LE640U/C6400U) 60"LCD Panel Module Unit R/C OPC Unit Wi-Fi Unit ICON Unit KEY Unit 00 00 MAIN Unit POWER/LED Drive Unit LCD CONTROL Unit...
  • Page 82 LC-52/60/70LE640U,C6400U (1st Edition) PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [4] CABINET PARTS (LC-60LE640U/C6400U) Front Cabinet Ass'y CCABAC860WJ31 Front Cabinet Not Available ICON Cover GCOVAE327WJ3A R/C LED Decoration HDECQB692WJ3A Wire Holder LHLDWA133WJKZ Wire Holder, x4 LHLDWA175WJUZ Wire Holder LHLDWA289WJKZ License Label PSHEPB181WJKZ Wi-Fi Label...
  • Page 83 LC-52/60/70LE640U,C6400U (1st Edition) [5] CABINET PARTS (LC-70LE640U/C6400U) 70"LCD Panel Module Unit R/C OPC Unit Wi-Fi Unit ICON Unit KEY Unit MAIN Unit POWER/LED Drive Unit LCD CONTROL Unit...
  • Page 84 LC-52/60/70LE640U,C6400U (1st Edition) PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [5] CABINET PARTS (LC-70LE640U/C6400U) Front Cabinet Ass'y CCABAC859WJ31 Front Cabinet Not Available ICON Cover GCOVAE327WJ3A R/C LED Decoration HDECQB692WJ3A Wire Holder, x2 LHLDWA124WJKZ Wire Holder, x4 LHLDWA175WJUZ Wire Holder LHLDWA289WJKZ Sheet PSHEPB181WJKZ...
  • Page 85 LC-52/60/70LE640U,C6400U (1st Edition) [6] SUPPLIED ACCESSORIES/PACKING PARTS (LC-52LE640U/C6400U) Ennquete Card Stand Base Ass'y Stand Support Ass'y Guarantee Card Connection guide Remote control unit “AAA” size battery Operation manual Stand Screw Ass'y...
  • Page 86 Conection Guide TMAN-A043WJZZ Remote Control RRMCGB004WJSA AAA size battery, x2 Not Available SPAKCG633WJZZ Packing Case (for LC-52LE640U) (NOT REPLACEMENT ITEM) SPAKCG634WJZZ Packing Case (for LC-52C6400U) (NOT REPLACEMENT ITEM) SPAKCG639WJZZ Packing Case (Bottom) (NOT REPLACEMENT ITEM) Polyethylene Bag (NOT REPLACEMENT ITEM) SPAKPA992WJZZ Packing Add.
  • Page 87 LC-52/60/70LE640U,C6400U (1st Edition) [7] SUPPLIED ACCESSORIES/PACKING PARTS (LC-60LE640U/C6400U) Ennquete Card Stand Base Ass'y Stand Support Ass'y Guarantee Card Connection guide Remote control unit “AAA” size battery Operation manual Stand Screw Ass'y...
  • Page 88 LC-52/60/70LE640U,C6400U (1st Edition) PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [7] SUPPLIED ACCESSORIES/PACKING PARTS (LC-60LE640U/C6400U) Stand Base Ass'y CDAi-A778WJ31 Stand Support Ass'y, x2 CANGKD276WJ01 Stand Screw Ass'y CSAKKA011WJ01 Ennquete Card TCADEA290WJZZ Guarantee Card TGAN-B610WJZZ Operation Guide TiNS-F419WJZZ Conection Guide TMAN-A043WJZZ Remote Control RRMCGB004WJSA...
  • Page 89 LC-52/60/70LE640U,C6400U (1st Edition) [8] SUPPLIED ACCESSORIES/PACKING PARTS (LC-70LE640U/C6400U) Ennquete Card pport Ass'y Guarantee Card Connection guide Remote control unit “AA A A A A A ” size battery Operation manual...
  • Page 90 LC-52/60/70LE640U,C6400U (1st Edition) PRICE PART PARTS CODE DESCRIPTION RANK MARK DELIVERY [8] SUPPLIED ACCESSORIES/PACKING PARTS (LC-70LE640U/C6400U) Stand Base Ass'y CDAi-A778WJ31 Stand Support Ass'y, x2 CANGKD276WJ01 Stand Screw Ass'y CSAKKA011WJ01 Ennquete Card TCADEA290WJZZ Guarantee Card TGAN-B610WJZZ Operation Guide TiNS-F419WJZZ Conection Guide TMAN-A043WJZZ Remote Control RRMCGB004WJSA...
  • Page 91 LC-52/60/70LE640U,C6400U (1st Edition)
  • Page 92 LC-52/60/70LE640U,C6400U (1st Edition) COPYRIGHT © 2012 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.

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