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Sharp LC-46SE94U Service Manual

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LC-46SE94U
The stand (ST52SE94) and speakers (SP46SE94) for Model LC-46SE941U are separately sold.
OUTLINE
OUTLINE.................................................................... i
[1]
SPECIFICATIONS (LC-46SE94U) .........................1-1
[2]
SPECIFICATIONS (LC-46SE941U) .......................1-2
[1]
OPERATION MANUAL ..........................................2-1
[1]
DIMENSIONS ........................................................3-1
[1]
REMOVING OF MAJOR PARTS ...........................4-1
[1]
ADJUSTMENT PROCEDURE ...............................5-1
[2]
CHAPTER 6. TROUBLE SHOOTING TABLE
[1]
TROUBLE SHOOTING TABLE..............................6-1
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.

SERVICE MANUAL

LC-46SE941U
MODELS
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.
OUTLINE
CONTENTS
LC-46SE94U/LC-46SE941U
No. S18D1LC46SE94

LCD COLOR TELEVISION

LC-46SE94U
LC-46SE941U
CHAPTER 7. MAJOR IC INFORMATIONS
[1]
MAJOR IC INFORMATIONS..................................7-1
[1]
OVERALL WIRING DIAGRAM ..............................8-1
[2]
SYSTEM BLOCK DIAGRAM .................................8-2
[1]
SPEAKER-L Unit....................................................9-1
[2]
SPEAKER-R Unit ...................................................9-1
[3]
TERMINAL Unit......................................................9-2
[4]
R/C, LED Unit.........................................................9-4
[5]
KEY Unit.................................................................9-5
[6]
MAIN Unit...............................................................9-6
[7]
SIDE Unit .............................................................9-10
[1]
[2]
SPEAKER-L Unit..................................................10-1
[3]
SPEAKER-R Unit .................................................10-1
[4]
TERMINAL Unit....................................................10-2
[5]
R/C, LED Unit.......................................................10-5
[6]
KEY Unit...............................................................10-6
[7]
MAIN Unit.............................................................10-7
[8]
SIDE Unit ...........................................................10-22
Parts Guide
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.

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  • Page 1: Table Of Contents

    R/C, LED Unit............9-4 KEY ROM..............v KEY Unit..............9-5 MAIN Unit...............9-6 CHAPTER 1. SPECIFICATIONS SIDE Unit .............9-10 SPECIFICATIONS (LC-46SE94U) ......1-1 SPECIFICATIONS (LC-46SE941U) .......1-2 CHAPTER 10. SCHEMATIC DIAGRAM DESCRIPTION OF SCHEMATIC DIAGRAM ..10-1 CHAPTER 2. OPERATION MANUAL SPEAKER-L Unit..........10-1 OPERATION MANUAL ..........2-1 SPEAKER-R Unit ..........10-1...

  • Page 2: Outline

    LC-46SE94U/LC-46SE941U LC-46SE94U/LC-46SE941U OUTLINE Service Manual OUTLINE The stand (ST52SE94) and speakers (SP46SE94) for Model LC-46SE941U are separately sold.

  • Page 3: Safety Precaution Important Service Safety Precaution

    LC-46SE94U/LC-46SE941U LC-46SE94U/LC-46SE941U 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 • Use an AC voltmeter having with 5000 ohm per volt, or higher, sen- sitivity or measure the AC voltage drop across the resistor.

  • Page 4: Precautions A Prendre Lors De La Reparation

    LC-46SE94U/LC-46SE941U 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...

  • Page 5: Precautions For Using Lead-Free Solder

    LC-46SE94U/LC-46SE941U 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.

  • Page 6: Precautions In Servicing The Hdcp-Key Rom

    LC-46SE94U/LC-46SE941U PRECAUTIONS IN SERVICING THE HDCP-KEY ROM Applied part: HDCP-KEY ROM IC8451 RH-IXC318WJQZY (updated ROM) The HDCP-KEY ROM shall be protected and managed for its information inside. In servicing this ROM, therefore, take the following information pro- tection/management measures. 1) When disposing of the component parts and PWBs, destruct the IC itself in a proper way.

  • Page 7: Chapter 1. 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 specification changes for product improvement without prior notice. The performance specification figures indicated are nominal values of production units.

  • Page 8: Specifications (Lc-46Se941U)

    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 specification changes for product improvement without prior notice. The performance specification figures indicated are nominal values of production units. There may be some deviations from these values in individual units.

  • Page 9: Chapter 2. Operation Manual

    LC-46SE94U/LC-46SE941U CHAPTER 2. LC-46SE94U/LC-46SE941U OPERATION MANUAL Service Manual [1] OPERATION MANUAL Part Names TV (Front) Remote control sensor OPC sensor OPC indicator SLEEP indicator POWER indicator TV (Rear/Side) Hold down the set's POWER button (for 5 seconds), and the AC power is forced off.
  • Page 10 LC-46SE94U/LC-46SE941U Part Names TV POWER: Switch the TV power on or enters standby. Remote Control Unit DISPLAY: Display the channel information. SOURCE POWER: Turns the power of the external equipment on and off. External equipment operational buttons: Operate the external equipment.
  • Page 11 LC-46SE94U/LC-46SE941U Appendix Removing the Stand Before detaching (or attaching) the stand, unplug the AC cord from the AC INPUT terminal. CAUTION Do not remove the stand from the TV unless using an optional wall mount bracket to mount it. Before attaching/detaching the stand Before performing work, make sure to turn off the TV.
  • Page 12 LC-46SE94U/LC-46SE941U Appendix Troubleshooting Problem Possible Solution No power Check if you pressed TV 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.
  • Page 13 LC-46SE94U/LC-46SE941U On-Screen Display Menu Menu Items For TV/INPUT 1/2/3 Mode For HDMI/PC-IN Mode For HTML Mode Picture Menu Picture Menu Picture Menu Backlight Backlight Backlight Contrast Contrast Contrast Brightness Brightness Brightness Color Color Color Tint Tint Tint Sharpness Sharpness Sharpness...

  • Page 14: Chapter 3. Dimensions Dimensions

    LC-46SE94U/LC-46SE941U CHAPTER 3. LC-46SE94U/LC-46SE941U DIMENSIONS Service Manual [1] DIMENSIONS LC-46SE94U Unit: inch (mm) (1109) (1023.4) (477) (400) (128) (89) (343) LC-46SE941U (1109) Unit: inch (mm) (1023.4) (400) (89) 3 – 1...

  • Page 15: Chapter 4. Removing Of Major Parts

    LC-46SE94U/LC-46SE941U CHAPTER 4. LC-46SE94U/LC-46SE941U REMOVING OF MAJOR PARTS Service Manual [1] REMOVING OF MAJOR PARTS 1. Remove the 4 lock screws and detach the Stand. 2. Remove the 4 lock screws and detach the Speaker Box Unit. 3. Remove the 4 hole covers.
  • Page 16 LC-46SE94U/LC-46SE941U 7. Remove the 8 lock screws and detach the Main Shield. 8. Remove the 6 lock screws and detach the AV Shield. 9. Remove the 4 lock screws and detach the Control PWB Shield. Control PWB Shield Main Shield AV Shield 4 –...
  • Page 17 LC-46SE94U/LC-46SE941U 10.Disconnect all the connectors from all the PWBs. LP/PL SP-R SP-L 4 – 3...
  • Page 18 LC-46SE94U/LC-46SE941U 11.Remove the 2 lock screws and detach the Terminal Angle (Bottom). 12.Remove the 5 lock screws and detach the Tray Chassis. Tray Chassis Terminal Angle (Bottom) 4 – 4...
  • Page 19 LC-46SE94U/LC-46SE941U 13.Remove the 2 lock screws, 4 lock shafts and detach the Main Terminal Angle. 14.Remove the 3 lock screws and detach the AC INLET Unit. 15.Remove the 6 lock screws and detach the POWER Unit. 16.Remove the 5 lock screws and detach the TERMINAL Unit.
  • Page 20 LC-46SE94U/LC-46SE941U 19.Remove the 2 lock screws, 2 lock screws and detach the Speaker Ass'y Angle-R and SPEAKER-R Unit. 20.Remove the 2 lock screws, 2 lock screws and detach the Speaker Ass'y Angle-L and SPEAKER-L Unit. 21.Remove the 3 lock screws and detach the Mini AV KEY Ass'y.

  • Page 21: Chapter 5. Adjustment

    LC-46SE94U/LC-46SE941U CHAPTER 5. LC-46SE94U/LC-46SE941U ADJUSTMENT 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.
  • Page 22 LC-46SE94U/LC-46SE941U 5. Even a single failure in the process will trigger the upgrade failure screen. S94F UPGRADE FAILURE NOTE: In the event of a failure, repeat the upgrade process. If the process repeatedly fails, it is likely that the hardware need fixing.
  • Page 23 LC-46SE94U/LC-46SE941U 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 S94FVAxx.USB and SE94Mxxx.BIN (named temporarily) for monitor microprocessor software version upgrade to the USB memory.
  • Page 24 LC-46SE94U/LC-46SE941U 2.4. Upgrading FRC controller software Create the USB memory for FRC controller software version upgrade in the same manner as explained in the “Main software version upgrade”. Copy the file S94FFRCx.USB to USB memory. 2.4.1 How to upgrade the software 1.
  • Page 25 LC-46SE94U/LC-46SE941U 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.
  • Page 26 LC-46SE94U/LC-46SE941U 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.) [INFO] MAIN Version Main software version...
  • Page 27 LC-46SE94U/LC-46SE941U Page Line Item Description Remarks (adjustment detail, etc.) [HDTV] COMP33K ADJ (INPUT1) Component 33K picture level adjustment (main) COMP33K ADJ (INPUT3) COMP33K Y A_GAIN COMP33K Cb A_GAIN COMP33K Cr A_GAIN COMP33K Y D_GAIN COMP33K Cb D_GAIN COMP33K Cr D_GAIN...
  • Page 28 LC-46SE94U/LC-46SE941U Page Line Item Description Remarks (adjustment detail, etc.) [GAMMAC] GAMMAC IN RANGE GAMMAC POS MIN GAMMAC POS MAX GAMMAC POS MID GAMMAC POS MID2 GAMMAC CD MIN GAMMAC CD MAX GAMMAC CD MID GAMMAC CD MID2 GAMMAC VAL [SOUND 1]...
  • Page 29 LC-46SE94U/LC-46SE941U Page Line Item Description Remarks (adjustment detail, etc.) [SOUND 5] PEQ4_F0 PEQ4_Q PEQ4_GAIN PEQ5_F0 PEQ5_Q PEQ5_GAIN PEQ6_F0 PEQ6_Q PEQ6_GAIN PEQ7_F0 PEQ7_Q PEQ7_GAIN [SOUND 6] Output Trim Clipper Level Sub Vol Default Sub Vol Eala Sub Vol Eala Bass Sub Vol Eala D...
  • Page 30 LC-46SE94U/LC-46SE941U Page Line Item Description Remarks (adjustment detail, etc.) [M BRI DA2] BRIGHTNESS DA12 BRIGHTNESS DA13 BRIGHTNESS DA14 BRIGHTNESS DA15 BRIGHTNESS DA16 BRIGHTNESS DA17 BRIGHTNESS DA18 BRIGHTNESS DA19 BRIGHTNESS DA20 BRIGHTNESS DA21 BRIGHTNESS DA22 [M BRI DA3] BRIGHTNESS DA23 BRIGHTNESS DA24...
  • Page 31 LC-46SE94U/LC-46SE941U Page Line Item Description Remarks (adjustment detail, etc.) [M V6THE] V6 OS THERMO 1 V6 OS THERMO 2 V6 OS THERMO 3 V6 OS THERMO 4 V6 OS THERMO 5 V6 OS THERMO 6 V6 OS THERMO 7 [M V5THE]...
  • Page 32 LC-46SE94U/LC-46SE941U *1 Details of P1.9 (NORMAL STANDBY CAUSE) No operation off in the cause of “no operation off” No signal off in the cause of “no signal off” PC power management mode 1 in the cause of “Standby mode MODE1”...

  • Page 33: Special Features

    LC-46SE94U/LC-46SE941U 6. Special features * STANDBY CAUSE (Page 1/36) 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.
  • Page 34 LC-46SE94U/LC-46SE941U 7.5. Component 33K signal adjustment Adjustment item Adjustment conditions Adjustment procedure Adjustment 1080i signal Feed the 100% color bar signal to INPUT 1 component input. 100% white Auto adjustment Page 6/36 Bring the cursor on [•COMP 33K ADJ] and press [ENTER].
  • Page 35 LC-46SE94U/LC-46SE941U 8. Adjustment of white balance 8.1. White balance adjustment Adjustment item Adjustment conditions Adjustment procedure Setting For detailed adjustment procedure, refer to “Kameyama Model Integral Monitor WB Adjustment Specifications V1.6”. 1) Make the following settings for the set. AV MODE: [DYNAMIC]...

  • Page 36: Initialization To Factory Settings

    LC-46SE94U/LC-46SE941U 8.2. Adjusting procedure by use of [RS-232C] 1. Get ready the PC with COM port (RS-232C) running on Windows 95/98/ME/2000/XP operating system, as well as the RS-232C cross cable. 2. Start the unit with the RS-232C cable connected. 3. Start the terminal software. (The freeware readily available on the Internet will do.) 4.
  • Page 37 LC-46SE94U/LC-46SE941U 10. Model number ID plug Model numbers are identified by inserting the destination ID plug (QCNCMA275WJQZ) in its specified slot of the destination ID connector SC9201/ SC9202 (QCNCWA715WJQZY). 5 – 17...

  • Page 38: Public Mode Setting Procedure

    LC-46SE94U/LC-46SE941U [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 39 LC-46SE94U/LC-46SE941U 4. Public Mode Menu The guidance is not displayed onscreen. Setup procedure • To move the cursor up and down, use the “cursor UP/DOWN” key (remote controller) and “CH ( )” key (remote controller and set). • To change the settings, use the “cursor RIGHT/LEFT” key (remote controller) and “VOL (+)/(–)” key (remote controller and set).
  • Page 40 LC-46SE94U/LC-46SE941U 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 41 LC-46SE94U/LC-46SE941U 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.
  • Page 42 LC-46SE94U/LC-46SE941U 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 43 LC-46SE94U/LC-46SE941U 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.

  • Page 44: Trouble Shooting Table

    LC-46SE94U/LC-46SE941U CHAPTER 6. LC-46SE94U/LC-46SE941U TROUBLE SHOOTING TABLE Service Manual [1] TROUBLE SHOOTING TABLE No video (1) COMPOSITE: No external input video COMPOSITE: No external input video COMPOSITE: No external input video [INPUT-1] [INPUT-2] [INPUT-3] Is INPUT-1 selected on the input select...
  • Page 45 LC-46SE94U/LC-46SE941U No video (2) COMPONENT: No external input video [INPUT-1] COMPONENT: 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? Is the INPUT-SELECT for the input signal?
  • Page 46 LC-46SE94U/LC-46SE941U No video (3) S-VIDEO: No external input video [INPUT-2] Is INPUT-2 selected on the input select menu screen? Does the INPUT-2 S1_PLUG detection function? Check the line between pin(6) of input termi- nal(J504) and pin(41) of IC501(AV_SW). Are there the S-VIDEO signal inputs at pins(42)(Y) and (44)(C) of IC501(AV_SW)? Check the line between pins(3)(Y)/(4)(C) of J504 and pins(42)/(44) of IC501.
  • Page 47 LC-46SE94U/LC-46SE941U No video (4) 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(13) of...
  • Page 48 LC-46SE94U/LC-46SE941U [HDMI signal input] No video (5) HDMI: No external input video [INPUT-4] HDMI: No external input video [INPUT-5] Is INPUT-4 selected on the input select menu screen? Is INPUT-5 selected on the input select menu screen? Select INPUT-4 on the input select menu screen for the Select INPUT-5 on the input select menu screen for the right input signal.
  • Page 49 LC-46SE94U/LC-46SE941U [HDMI signal input] No video (5) HDMI: No external input video [INPUT-6] Is INPUT-6 selected on the input select menu screen? Select INPUT-6 on the input select menu screen for the right input sig- nal. Does the HOT PLUG detection function?
  • Page 50 LC-46SE94U/LC-46SE941U No video (6) PC: No external input video [INPUT-7] Is INPUT-7 selected on the input select menu screen? Select INPUT-7 on the input select menu screen for the right input signal. Is IC2202(EEPROM) accessed by I2C, with PC connected, to read the...
  • Page 51 LC-46SE94U/LC-46SE941U No audio (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? Is the audio output selected for “VARIABLE” on the Is the audio output selected for “VARIABLE” on...
  • Page 52 LC-46SE94U/LC-46SE941U No audio (1) INPUT-3 No audio Is INPUT-3 selected on the input select menu screen? Is the audio output selected for “VARI- ABLE” on the menu screen? Set the audio output to “FIXED”. Does the audio signal come from pins(5)(L) and (4)(R)
  • Page 53 LC-46SE94U/LC-46SE941U No audio (2) [HDMI analog audio input] INPUT-6 No audio [PC analog audio input] INPUT-7 No audio Is INPUT-6 selected on the input select menu screen? Is INPUT-7 selected on the input select menu screen? Is the audio output selected for “VARI- Is the audio output selected for “VARIABLE”...
  • Page 54 LC-46SE94U/LC-46SE941U 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? Is the audio output selected for “VARIABLE” on the Is the audio output selected for “VARIABLE”...
  • Page 55 LC-46SE94U/LC-46SE941U No audio (4) INPUT-4 No audio (HDMI connected) INPUT-5 No audio (HDMI connected) INPUT-6 No audio (HDMI connected) [INPUT-4 input] Is INPUT-4 selected on the input select menu screen? [INPUT-5 input] Is INPUT-5 selected on the input select menu screen?
  • Page 56 LC-46SE94U/LC-46SE941U No audio signal at Digital Audio Output terminal (Analog sound heard) No INPUT-4/5/6(HDMI) audio No audio at digital broadcast signal reception If no video appears, refer to “No external input video Are there the video signal outputs (IF_OUT_P/N) at the pins(19) and (HDMI) [INPUT-4/5/6]”.
  • Page 57 LC-46SE94U/LC-46SE941U No monitor audio output Is the audio output from the monitor set at “VARIABLE” or Check the bus line(SCL0/SDA0) and IC1403. “FIXED” on the menu screen? Are there the audio signal outputs at pins(24)(LINE_L) and Check IC1403 and its peripheral circuits.
  • Page 58 LC-46SE94U/LC-46SE941U LED flashing timing chart for error notification. 250ms 1sec 1) Power LED (The power LED (Blue) which lights during TV reception flashes.) Error type Power red LED operation (1 cycle) Pins are microprocessor pins. Lamp failure ERR_PNL (pin 40): L failure. Confirmed after 10 consecutive...
  • Page 59 LC-46SE94U/LC-46SE941U 2) Power failure details (Power LED flashes twice and OPC LED flashes) Error type Notification LED operation (1 cycle) Pins are microprocessor pins unless otherwise specified. PS_ON DET_15V (pin 34). UR15V or A9V is not applied. DET_15V failure If error is detected during operation, the power is turned on...

  • Page 60: Major Ic Informations

    LC-46SE94U/LC-46SE941U CHAPTER 7. LC-46SE94U/LC-46SE941U MAJOR IC INFORMATIONS Service Manual [1] MAJOR IC INFORMATIONS 1. MAJOR IC INFORMATIONS 1.1. IC501 (VHiSM5351AF-1Q) This I2C bus-controlled audio/video switch is designed to switch video signal between two-system color difference (component) signal, one-system S video signal and three-system composite signal, and to switch audio signal between three-system signal.
  • Page 61 LC-46SE94U/LC-46SE941U 1.7. IC8001 (RH-iXC376WJQZQ) This LSI is FULL HIGH-DEFINITION 1080P DIGITAL TV SYSTEM-ON-A-CHIP. It combines a cable/terrestrial 4/1024-QAM and 8/16-VSB receiver, a transport processor, a digital audio processor, a high definition (HD) MPEG video decoder, 2D graphics processing, digital processing of analog video and audio, analog video digitizer and DAC functions, stereo high-fidelity audio DACs, two HDMI receivers for 1080p 60 inputs, a 330-MHz millions of instructions per second (MIPS) processor, and a peripheral control unit providing a variety of television control functions.

  • Page 62: Chapter 8. Overall Wiring/Block Diagram

    LC-46SE94U/LC-46SE941U LC-46SE94U/LC-46SE941U CHAPTER 8. OVERALL WIRING/BLOCK DIAGRAM Service Manual [1] OVERALL WIRING DIAGRAM 46 inch LCD PANEL 1920 1080 WIRE LIST TO SOURCE PWB TO SOURCE PWB REF. PARTS CODE < 80pin > < 80pin > QCNW-G903WJQZ QCNW-G149WJQZ J MAIN to LCDC QPWBHE322WJQZ 0.5SL NA222...

  • Page 63: System Block Diagram

    LC-46SE94U/LC-46SE941U [2] SYSTEM BLOCK DIAGRAM 8 – 2...

  • Page 64: Chapter 9. Printed Wiring Board Assemblies Speaker-L Unit

    LC-46SE94U/LC-46SE941U LC-46SE94U/LC-46SE941U CHAPTER 9. [2] SPEAKER-R Unit PRINTED WIRING BOARD ASSEMBLIES Service Manual [1] SPEAKER-L Unit SPEAKER-L Unit (Side-A) SPEAKER-R Unit (Side-A) 9 – 1...

  • Page 65: Terminal Unit

    LC-46SE94U/LC-46SE941U [3] TERMINAL Unit TERMINAL Unit (Side-A) 9 – 2...
  • Page 66 LC-46SE94U/LC-46SE941U TERMINAL Unit (Side-A Chip) R2747 C2739 R2751 R2750 R2749 IC502 P2702 Q2703 Q2702 R2746 R2745 C2746 R2740 R2743 CAME1 TP2701 R2719 R2718 C2747 R578 FB503 R577 C568 Q509 Q507 Q508 FB504 R575 C567 L2701 FB525 R583 R584 R587 R586...

  • Page 67: R/C, Led Unit

    LC-46SE94U/LC-46SE941U [4] R/C, LED Unit R/C, LED Unit (Side-A) R/C, LED Unit (Side-A Chip) C104 R120 R126 R107 C108 Q102 C107 P102 R119 P101 R121 R104 R124 RMC102 IC102 RMC101 IC101 D103 D114 D115 R135 R109 SLD101 R106 R105 R123...

  • Page 68: Key Unit

    LC-46SE94U/LC-46SE941U [5] KEY Unit KEY Unit (Side-A) KEY Unit (Side-A Chip) R154 D155 P151 R152 9 – 5...

  • Page 69: Main Unit

    LC-46SE94U/LC-46SE941U [6] MAIN Unit MAIN Unit (Side-A) 9 – 6...
  • Page 70 LC-46SE94U/LC-46SE941U MAIN Unit (Side-A Chip) VER1 KOUJO1 L9641 BAR1 P9001 SC2203 C9010 LUG2202 P9701 C9617 SC9201 C9613 IC9004 R1328 C1456 C9301 C9645 FDC3 C9304 Q1308 R1326 C9646 P9301 IC9703 D9301 IC9002 C1449 R1325 R1327 R1331 R2020 C2606 P9302 C9302 R2004...
  • Page 71 LC-46SE94U/LC-46SE941U MAIN Unit (Side-B) 9 – 8...
  • Page 72 LC-46SE94U/LC-46SE941U MAIN Unit (Side-B Chip) TL2256 TL2280 TL2277 TL2285 TL2289 TL2316 TL2282 TL2278 TL2246 TL2272 TL2271 TL2269 TL2275 TL2266 TL2312 TL2309 TL2306 TL2304 C9606 R9607 TL2283 TL9723 R9601 R9608 TL2281 TL2279 TL2254 R2314 TL2314 TL2208 TL9708 TL2274 C9605 TL2270 TL9724...

  • Page 73: Side Unit

    LC-46SE94U/LC-46SE941U [7] SIDE Unit SIDE Unit (Side-A) J901 J902 SC801 J801 R801 Q801 R834 D804 D802 R806 VA802 R907 R908 D805 R812 R906 R913 VA801 C903 D903 C803 D906 R810 R831 R837 R808 C830 R817 Q805 C817 C801 C828 C829...

  • Page 74: Chapter 10. Schematic Diagram

    LC-46SE94U/LC-46SE941U LC-46SE94U/LC-46SE941U CHAPTER 10. [2] SPEAKER-L Unit SCHEMATIC DIAGRAM Service Manual [1] DESCRIPTION OF SCHEMATIC DIAGRAM 1. VOLTAGE MEASUREMENT CONDITION: 1) The voltages at test points are measured on exclusive AC adaptor and the stable supply voltage of AC 120V. Signals are fed by a color bar signal gener- ator for servicing purpose and the above voltages are measured with a 20k ohm/V tester.

  • Page 75: Terminal Unit

    LC-46SE94U/LC-46SE941U [4] TERMINAL Unit • TERMINAL Unit-1/3 10 – 2...
  • Page 76 LC-46SE94U/LC-46SE941U • TERMINAL Unit-2/3 10 – 3...
  • Page 77 LC-46SE94U/LC-46SE941U • TERMINAL Unit-3/3 10 – 4...
  • Page 78 LC-46SE94U/LC-46SE941U [5] R/C, LED Unit 10 – 5...
  • Page 79 LC-46SE94U/LC-46SE941U [6] KEY Unit 10 – 6...
  • Page 80 LC-46SE94U/LC-46SE941U [7] MAIN Unit • MAIN Unit-1/15 10 – 7...
  • Page 81 LC-46SE94U/LC-46SE941U • MAIN Unit-2/15 10 – 8...
  • Page 82 LC-46SE94U/LC-46SE941U • MAIN Unit-3/15 10 – 9...
  • Page 83 LC-46SE94U/LC-46SE941U • MAIN Unit-4/15 10 – 10...
  • Page 84 LC-46SE94U/LC-46SE941U • MAIN Unit-5/15 10 – 11...
  • Page 85 LC-46SE94U/LC-46SE941U • MAIN Unit-6/15 10 – 12...
  • Page 86 LC-46SE94U/LC-46SE941U • MAIN Unit-7/15 10 – 13...
  • Page 87 LC-46SE94U/LC-46SE941U • MAIN Unit-8/15 10 – 14...
  • Page 88 LC-46SE94U/LC-46SE941U • MAIN Unit-9/15 10 – 15...
  • Page 89 LC-46SE94U/LC-46SE941U • MAIN Unit-10/15 10 – 16...
  • Page 90 LC-46SE94U/LC-46SE941U • MAIN Unit-11/15 10 – 17...
  • Page 91 LC-46SE94U/LC-46SE941U • MAIN Unit-12/15 10 – 18...
  • Page 92 LC-46SE94U/LC-46SE941U • MAIN Unit-13/15 10 – 19...
  • Page 93 LC-46SE94U/LC-46SE941U • MAIN Unit-14/15 10 – 20...
  • Page 94 LC-46SE94U/LC-46SE941U • MAIN Unit-15/15 10 – 21...
  • Page 95 LC-46SE94U/LC-46SE941U [8] SIDE Unit • SIDE Unit-1/2 10 – 22...
  • Page 96 LC-46SE94U/LC-46SE941U • SIDE Unit-2/2 10 – 23...
  • Page 97 LC-46SE94U/LC-46SE941U PartsGuide PARTS GUIDE No. S18D1LC46SE94 LC-46SE94U Note: The reference numbers on the PWB LC-46SE941U are arranged in alphabetical order. MODELS CONTENTS [11] CABINET AND MECHANICAL PARTS PRINTED WIRING BOARD ASSEMBLIES [12] SUPPLIED ACCESSORIES LCD PANEL (NOTE: THE PARTS HERE...

  • Page 98: R/C, Led Unit

    LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [1] PRINTED WIRING BOARD ASSEMBLIES SPEAKER-L Unit DUNTKD744WE01 SPEAKER-R Unit DUNTKD745WE01 TERMINAL Unit DUNTKE208FM02 R/C, LED Unit DUNTKE264FM11 KEY Unit DUNTKE266FM02 DUNTKE421FM02 MAIN Unit SIDE Unit DUNTKE488FM04 POWER Unit RDENCA235WJQZ AC INLET Unit...
  • Page 99 LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [5] DUNTKE208FM02 (TERMINAL Unit) C1104 Capacitor, 10 16V Ceramic RC-KZA237WJZZY C1107 Capacitor, 1000p 50V Ceramic VCKYCY1HB102KY C1109 Capacitor, 0.01 50V Ceramic VCKYCY1HB103KY C1111 Capacitor, 0.01 50V Ceramic VCKYCY1HB103KY C1112 Capacitor, 10 16V Ceramic...
  • Page 100 LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [5] DUNTKE208FM02 (TERMINAL Unit) J503 Jack QJAKGA140WJQZ J504 Socket QSOCDA020WJZZ J505 Jack QJAKFA044WJZZ L2701 Coil RCiLPA800WJZZY L2702 Coil RCiLPA800WJZZY L2703 RCiLPA800WJZZY Coil L2704 Coil RCiLPA800WJZZY P501 Plug, 15pin (VD) QPLGNA349WJZZY P2701...
  • Page 101 LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [5] DUNTKE208FM02 (TERMINAL Unit) R569 Resistor, 75 1/8W Metal Oxide VRS-TQ2BD750JY R570 Resistor, 0 1/16W Metal Oxide VRS-CY1JF000JY R571 Resistor, 560 1/10W Metal Oxide VRS-TV1JD561JY R572 Resistor, 1k 1/16W Metal Oxide...
  • Page 102 LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [6] DUNTKE264FM11 (R/C, LED Unit) R105 Resistor, 39k 1/16W Metal Oxide VRS-CY1JF393JY R108 Resistor, 220 1/16W Metal Oxide VRS-CY1JF221JY R109 Resistor, 820 1/16W Metal Oxide VRS-CY1JF821JY R117 Resistor, 10k 1/16W Metal Oxide...
  • Page 103 LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [8] DUNTKE421FM02 (MAIN Unit) C1628 Capacitor, 0.1 10V Ceramic VCKYCZ1AB104KY C1629 Capacitor, 1000p 50V Ceramic VCKYCZ1HB102KY C1630 Capacitor, 10 16V Ceramic RC-KZA237WJZZY C1631 Capacitor, 1 10V Ceramic RC-KZA520WJQZY C1632 Capacitor, 0.1 10V Ceramic...
  • Page 104 LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [8] DUNTKE421FM02 (MAIN Unit) C8009 Capacitor, 0.01 25V Ceramic VCKYCZ1EB103KY C8010 Capacitor, 0.1 10V Ceramic VCKYCZ1AB104KY C8011 Capacitor, 4.7 10V Ceramic RC-KZA067WJZZY C8012 Capacitor, 0.1 10V Ceramic VCKYCZ1AB104KY C8013 Capacitor, 1000p 50V Ceramic...
  • Page 105 LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [8] DUNTKE421FM02 (MAIN Unit) C8101 Capacitor, 0.1 10V Ceramic VCKYCZ1AB104KY C8103 Capacitor, 0.01 25V Ceramic VCKYCZ1EB103KY C8104 Capacitor, 0.01 25V Ceramic VCKYCZ1EB103KY C8105 Capacitor, 0.1 10V Ceramic VCKYCZ1AB104KY C8106 Capacitor, 0.1 10V Ceramic...
  • Page 106 LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [8] DUNTKE421FM02 (MAIN Unit) C8202 Capacitor, 0.01 25V Ceramic VCKYCZ1EB103KY C8203 Capacitor, 0.01 25V Ceramic VCKYCZ1EB103KY C8204 Capacitor, 0.01 25V Ceramic VCKYCZ1EB103KY C8205 Capacitor, 0.01 25V Ceramic VCKYCZ1EB103KY C8206 Capacitor, 0.01 25V Ceramic...
  • Page 107 LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [8] DUNTKE421FM02 (MAIN Unit) C9611 Capacitor, 4.7 16V Ceramic RC-KZA154WJZZY C9612 Capacitor, 0.1 25V Ceramic VCKYCY1EB104KY C9613 Capacitor, 4.7 25V Ceramic RC-KZA178WJZZY C9614 Capacitor, 4.7 25V Ceramic RC-KZA178WJZZY C9615 Capacitor, 4700p 25V Ceramic...
  • Page 108 LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [8] DUNTKE421FM02 (MAIN Unit) FB2201 Ferrite Core RBLN-A074WJZZY FB2202 Ferrite Core RBLN-A074WJZZY FB2203 Ferrite Core RBLN-0093GEZZY FB2204 Ferrite Core RBLN-0093GEZZY FB2205 Ferrite Core RBLN-0093GEZZY FB2206 RBLN-A204WJZZY Ferrite Core FB2207 Ferrite Core...
  • Page 109 LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [8] DUNTKE421FM02 (MAIN Unit) L2603 Coil RCiLFA279WJZZY L2604 Coil RCiLFA279WJZZY L2605 Coil RCiLFA279WJZZY L2606 Coil RCiLFA279WJZZY L2607 Coil RCiLFA279WJZZY L2608 RCiLFA279WJZZY Coil L2609 Coil RCiLFA279WJZZY L2610 Coil RCiLFA279WJZZY L2611 Coil RCiLFA279WJZZY...
  • Page 110 LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [8] DUNTKE421FM02 (MAIN Unit) R1328 Resistor, 0 1/16W Metal Oxide VRS-CZ1JF000JY R1329 Resistor, 47k 1/16W Metal Oxide VRS-CZ1JF473JY R1330 Resistor, 47k 1/16W Metal Oxide VRS-CZ1JF473JY R1331 Resistor, 0 1/16W Metal Oxide...
  • Page 111 LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [8] DUNTKE421FM02 (MAIN Unit) R1742 Resistor, 0 1/16W Metal Oxide VRS-CZ1JF000JY R1743 Resistor, 0 1/16W Metal Oxide VRS-CZ1JF000JY R1744 Resistor, 0 1/16W Metal Oxide VRS-CZ1JF000JY R1745 Resistor, 0 1/16W Metal Oxide...
  • Page 112 LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [8] DUNTKE421FM02 (MAIN Unit) R2244 Resistor, 18k 1/16W Metal Oxide VRS-CZ1JF183JY R2245 Resistor, 10k 1/16W Metal Oxide VRS-CZ1JF103JY R2246 Resistor, 18k 1/16W Metal Oxide VRS-CZ1JF183JY R2247 Resistor, 10k 1/16W Metal Oxide...
  • Page 113 LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [8] DUNTKE421FM02 (MAIN Unit) R8050 Resistor, 0 1/16W Metal Oxide VRS-CZ1JF000JY R8052 Resistor, 0 1/16W Metal Oxide VRS-CZ1JF000JY R8053 Resistor, 0 1/16W Metal Oxide VRS-CZ1JF000JY R8054 Resistor, 0 1/16W Metal Oxide...
  • Page 114 LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [8] DUNTKE421FM02 (MAIN Unit) R8190 Resistor, 68 1/32W Metal Composition VRK-SB1FF680JY R8191 Resistor, 68 1/32W Metal Composition VRK-SB1FF680JY R8192 Resistor, 68 1/32W Metal Composition VRK-SB1FF680JY R8193 Resistor, 68 1/32W Metal Composition...
  • Page 115 LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [8] DUNTKE421FM02 (MAIN Unit) R8904 Resistor, 4.7k 1/16W Metal Oxide VRS-CZ1JF472JY R8905 Resistor, 4.7k 1/16W Metal Oxide VRS-CZ1JF472JY R8906 Resistor, 4.7k 1/16W Metal Oxide VRS-CZ1JF472JY R9001 Resistor, 100 1/10W Metal Oxide...
  • Page 116 LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [8] DUNTKE421FM02 (MAIN Unit) R9641 Resistor, 4.7k 1/16W Metal Oxide VRS-CZ1JF472JY R9642 Resistor, 10k 1/16W Metal Oxide VRS-CZ1JF103FY R9643 Resistor, 22k 1/16W Metal Oxide VRS-CZ1JF223FY R9644 Resistor, 3.9k 1/16W Metal Oxide...
  • Page 117 LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [9] DUNTKE488FM04 (SIDE Unit) FB906 Ferrite Core RBLN-A204WJZZY IC801 IC, R5523N001B-TR-F VHiR5523N1B-1Y IC802 IC, BQC (HDMI EDID) RH-iXC394WJQZS IC803 IC, SII9181CNU VHiSii9181+-1Q IC804 IC, PST3615NR VHiPST3615N-1Y IC805 VHiPQ1LA185-1Y IC, PQ1LA185MSPQ IC806...
  • Page 118 LC-46SE94U/LC-46SE941U [10] NOTE (Temperature-proof cover) Added covers parts Cover parts code: PSPAGA386WJ00 Q'ty 4 Cover parts code: PSPAKA237WJ00 Q'ty 1 Attention Please peel off the covers when you remove Rear Cabinet. And please use the NEW cover when you install Rear Cabinet.

  • Page 119: Key Unit

    LC-46SE94U/LC-46SE941U [11] CABINET AND MECHANICAL PARTS SPEAKER-L Unit SPEAKER-R Unit 1-16 1-12 1-13 1-11 1-12 1-12 1-11 1-13 1-10 R/C, LED Unit 1-14 1-11 1-12 1-11 1-10 1-15 MAIN Unit AC INLET Unit KEY Unit POWER Unit SIDE Unit 67-3...
  • Page 120 LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [11] CABINET AND MECHANICAL PARTS Front Cabinet Ass'y (LC-46SE94U) CCABAB977WJ01 Front Cabinet Ass'y (LC-46SE941U) CCABAB977WJ02 Front Cabinet Not Available Front Cover (Upper) Not Available Front Cover (Lower) Not Available Front Cover (Side), x2...
  • Page 121 LHLDWA173WJKZ Cable Clamp AC Cord QACCDA039WJPZ Remote Control Unit RRMCGA648WJSA Enquete Card TCADEA208WJZZ Extend Warranty TGAN-A845WJZZ TINS-D476WJZZ Operation Manual (LC-46SE94U) Operation Manual (LC-46SE941U) TINS-D609WJZZ "AAA" Size Battery Not Available Driver UKOGDA004WJZZ Stand Hole Cover, x2 GCOVAC591WJKA Speaker Box Unit RSP-ZA303WJZZ...
  • Page 122 LC-46SE94U/LC-46SE941U [13] PACKING PARTS (NOT REPLACEMENT ITEM)
  • Page 123 LC-46SE94U/LC-46SE941U PRICE PARTS CODE PART DESCRIPTION RANK MARK DELIVERY [13] PACKING PARTS (NOT REPLACEMENT ITEM) Packing Case (LC-46SE94U) SPAKCD915WJZZ Packing Case (LC-46SE941U) SPAKCE169WJZZ Packing Case (Bottom) SPAKCD916WJZZ Stand Case SPAKFB438WJZZ Stand Pad SPAKFB439WJZZ Wrapping Paper SPAKPA999WJZZ Mirror Mat Base SPAKPB075WJZZ...
  • Page 124 LC-46SE94U/LC-46SE941U COPYRIGHT 2008 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.

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