Sharp LC-32LE440U Service Manual
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Sharp LC-32LE440U Service Manual

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SERVICE MANUAL

LCD COLOR TELEVISION
MODEL:
LC-32LE440U

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Summary of Contents for Sharp LC-32LE440U

  • Page 1: Service Manual

    SERVICE MANUAL LCD COLOR TELEVISION MODEL: LC-32LE440U...

  • Page 2: Table Of Contents

    CONTENTS SAFETY PRECAUTION IMPORTANT SERVICE SAFETY PRECAUTION................………………………2 CHAPTER 1. SPECIFICATIONS [1] SPECIFICATIONS ............................4 [2] DIMENSIONS ..............................5 CHAPTER 2. REMOVING OF MAJOR PARTS [1] REMOVING OF MAJOR PARTS .......................6 CHAPTER 3. ADJUSTMENT PROCEDURE [1] ADJUSTMENT PROCEDURE ........................14 [2] SERVICE MODE.............................19 [3] SOFTWARE UPGRADE PROCEDURE .....................20 CHAPTER 4.

  • Page 5: Specifications

    CHAPTER 1. OPERATION MANUAL [1] SPECIFICATIONS Item Model: LC-32LE440U LCD screen size 32 inches diagonal Resolution 1366 x 768 TV-standard American TV Standard ATSC/NTSC System VHF/UHF VHF 2-13ch, UHF 14-69ch CATV 1-125ch (non-scrambled channel only) Receiving Digital Terrestrial TV function 2-69ch channel Broadcast (8VSB)

  • Page 6: Dimensions

    [2]DIMENSIONS...

  • Page 7: Removing Of Major Parts

    CHAPTER 2. Removing of Major Parts 1. Assy/Panel Removal Notes: Please put your machine on soft material to avoid scrape panel when you disassemble it. Front view Fig.1 Back view Fig.2 Step1. Remove the Base Assy. 1. Remove the 4 screws as Fig.3 and pull out the base . Fig.3...
  • Page 8 Step 2. Remove the REAR COVER Assy. 1. Remove the 13 screws, around the REAR COVER as Fig.4. Fig.4 2. Remove the 4 screws at the IO area as Fig.5. Fig.5...
  • Page 9 3. Remove the 3 screws to release AC cable as Fig.6 .Fig.7 Fig.6 Fig.7 Step3. Remove the Main, Power, IR board, Key Pad ASSY, and the Speakers. Fig.8...
  • Page 10 1. Remove the 5 screws and disconnect 4 cables .Detach the Main board ASSY as Fig.9 Fig.9...
  • Page 11 2. Remove the 4 screws and 2 Cables. Detach the Power board as Fig.10. Fig.10 3. Remove the 1screws. Detach the IR board as Fig.11. Fig.11...
  • Page 12 4. Remove the 1screws.Detach the Key Pad ASSY as Fig.12. Fig.12 5. Detach the Speakers as Fig.13. Fig.14. Fig.13 Fig.14...
  • Page 13 Step4. Remove BASE SUPPORT. Remove the 4 screws and 2 cable clamps. Detach the BASE SUPPORT as Fig.15 Fig.15...
  • Page 14 Step5. Remove PANEL module. 1. Remove the 4 screws. Detach the PANEL HOLDER as Fig.16, Fig.17, Fig.18 Fig.16 Fig.17 Fig.18...

  • Page 15: Chapter 3. Adjustment Procedure

    CHAPTER 3. ADJUSTMENT PROCEDURE [1]ADJUSTMENT PROCEDURE 1. Main Menu (The default value is marked in red) Level 1 Level 2 Level 3 Level 4 Level 5 Level 6 Picture Settings AV Mode User/ Standard/ Movie/ Game/ PC/ Dynamic/ Dynamic(Fixed) Off/ On Disable when AV mode is Backlight...
  • Page 16 Reset Yes/No (Only reset currect AV mode settings.) Power Control No Signal Off Enable/ Disable Power Saving Off/ On Disable when AV mode is Dynamic(Fixe System Options View Option View Mode Freeze Change Audio Mono/ Stereo/ SAP Audio English/ Spanish/ Language French Change CC...
  • Page 17 (For TV & AV Custom only) Caption Size Small/ Standard/ Large Foreground Color Black/ White/ Green/ Blue/ Red/ Cyan/ Yellow/ Magenta Foreground Opacity Solid/ Translucent/ Transparent Background Color Black/ White/ Green/ Blue/ Red/ Cyan/ Yellow/ Magenta Background Opacity Solid/ Translucent/ Transparent Window Color Black/ White/...
  • Page 18 Language English/ Español/ Français Individaul Setup Secret No. New Secret No. (Input Secret Confirm Secret No.) (For TV & AV Parental CTRL V-Chip MPAA G/ PG/ only) PG-13/ R/ NC-17/ X/ NONE TV Guidelines TV-Y/ TV-Y7/ TV-G/ TV-PG/ TV-14/ TV-MA/ NONE D, L, S, V, FV Can.English...
  • Page 19 2. Display adjustment Only adjust HDMI Mode and copy to all of input source General set-up: Equipment Requirements: Minolta CA-210 or Equivalent Color analyzer or equivalent instrument. Input Signal Type: 1. Internal full white pattern. 2. Select Picture mode to Standard mode and check the x, y data. HDMI cable Input Injection Point: Alignment method:...

  • Page 20: Service Mode

    Note: 1. Use Minolta CA-210 for color coordinates and luminance check. 2. Before adjusting, all color analyzers (CA-210) should be coordinates with a same reference TV set. 3. Luminance > =320 cd/m in the center of the screen when Brightness control at 100, Contrast control at 100, Backlight control at 100.

  • Page 21: Software Upgrade Procedure

    [3] SOFTWARE UPGRADE PROCEDURE 1. Connect to TV USB port to upgrade the software firmware Please follow the following steps to upgrade the firmware. Turn on TV. Press MENU, select Information Identification to check "Version" III. Copy the correct software firmware (*.pkg) to USB disk. Ex: Version: V2.0, copy NAS2_89.pkg to USB disk.

  • Page 22: Troubleshooting Table

    CHAPTER 4.TROUBLESHOOTING TABLE [1]TROUBLE SHOOTING TABLE The sound is not emitted from the speaker though the picture has come out. No sound output in all models? TEREMINAL TEREMINAL Is the audio signal output of pin (96) (AOSDATA0), pin (95) (AOBCK), pin (94) Check IC U2102 and its peripheral circuits.
  • Page 23 No sound (during the reception of TV broadcasting) Does not the sound go out though the picture has come out when UHF/VHF is received? MAIN UNIT: Check the tuner and its peripheral circuits. Replace as Is the DIF signal output from pin (10) and pin (11) of required.
  • Page 24 No sound from external input devices (1) Does not the sound of the audio signal input to input (Component) go out? MAIN UNIT: Is the audio signal properly sent to pin (8) and pin Check the connection to CN1202 and the external (10) of CN1202? input device.
  • Page 25 No sound from external input devices (2) Does not the sound of the audio signal input to VGA go out? MAIN UNIT: Is the audio signal properly sent to pin (3) and pin Check the connection to CN1102 and the external (2) of CN1102? input device.
  • Page 26 No sound from external input devices (3) Does not the sound of the audio signal input to USB go out? Is USB stick audio format correct? Change to correct mp3 format MAIN Is the USB +5V Q7105 sent to pin (1) of CN1104? Check the connection to Q7105 and the external input device.
  • Page 27 The audio signal is not output No audio signal output from Headphone terminal (CN6201). Terminal Is audio signal output from pin (12) (OUTL) and pin Check the connection to HPOL(R) OUT and (3) (OUTR) of IC U6201 to Jack (CN6201)? external devices.
  • Page 28 The audio signal is not output No audio signal output from SPDIF terminal (CN6202). Terminal Is input source on HDMI? The SPDIF out not Change input source to others (AV, TV, etc.). support HDMI source. Is the audio signal output from IC U2102 pin (92) Check the line between IC U2102 and CN6202.
  • Page 29 No picture on the display (1) The picture doesn't appear in all modes. Main UNIT: Check LVDS signal output from IC U2102 or not? 32" : (O0N/O0p), (O1N/O1P),(O2N/O2P),(O3N/O3P),(OCKN/OCKP) 42" : (O0N/O0p),(O1N/O1P),(O2N/O2P),(O3N/O3P),(OCKN/OCKP), (E0N/E0p), (E1N/E1P), (E2N/E2P), (E3N/E3P), (ECKN/ECKP) Check IC U2102 and its peripheral control circuits.
  • Page 30 No picture on the display (2) Does not the picture come out when VHF/UHF is received? Main UNIT: Check +5V_tuner/VCCK/DDRV/AV33/DV33/+3V3SB Check each power IC and peripheral is applied to Tuner and U2102 or not. components are correct or not. Is the DIF signal output from pin (10) and pin (11) of Check the tuner and its peripheral circuits.
  • Page 31 <External input Input(Side HDMI)>No picture on the display (3) Does not the picture display when HDMI cable plugged into HDMI1 ? Terminal Check the line between pin (78) of IC Is the HOT_PLUG detection function of U2102 and CN8103. pin (19) of HDMI terminal (CN8103) Check the connection and setup with Main UNIT: Is TMDS signal input into pin...
  • Page 32 <External input Input(Rear_HDMI2)>No picture on the display (4) Does not the picture display when HDMI cable plugged into HDMI 2 ? Terminal Check the line between pin (7) of IC Is the HOT_PLUG detection function of U2102 and CN8101 pin (19) of a HDMI terminal (CN8101) Check the connection and setup with Is TMDS signal input into pin the external HDMI devices.
  • Page 33 <External input Input(Rear HDMI3)>No picture on the display (5) Does not the picture display when HDMI cable plugged into HDMI 3? Terminal Check the line between pin (1) of IC Is the HOT_PLUG detection function of U2102 and CN8102. pin (19) of a HDMI terminal (CN8102) Check the connection and setup with Is TMDS signal input into pin the external HDMI devices.
  • Page 34 <External input USB>No picture on the display (6) Does not the picture display when USB cable plugged into USB port? Change to correct .jpg or .jpeg or .png or Is USB stick video format correct? .bmp format. Main UNIT: Check the fuse F1101 and the external Is the USB +5V sent to pin (1) of input device.
  • Page 35 <External input Input(Component)>No picture on the display (7) Does not the picture display when RCA cable plugged into component? Terminal Is Component Y/Pb/Pr signal sent to pin Check the setting of an external input (2)/Y, (4)/Pb, (6)/Pr of CN1202? device that connects of CN1202 Main UNIT: Check the line between IC U2102 and <External input...
  • Page 36 <External input D-SUB>No picture on the display (8) Does not the picture display when VGA cable plugged into D-SUB ? Set the timing which TV is support Is Video format correct? Terminal Is R/G/B/H/V signal sent to pin (1)/RED, Check the setting of an external input (2)/Green, (3)/BLUE, (14)/H sync#, device that connects of CN1101 Main UNIT:...
  • Page 37 Power unit operation check Are the power cord and harness in the Power cord and harness in the unit unit connected Line filter unit? LX101 ,LX102 or RT101 If F101 and F102 normal is out of order? Does BD101 output 169V when AC Change a new full-wave rectifier diode to input 120V? check the output voltage.

  • Page 38: Chapter 5. Major Ic Informations

    CHAPTER5. MAJOR IC INFORMATIONS [1]MAJOR IC INFORMATIONS 1.1. U2102 (MT5389) The MediaTek MT5389FUNU family consists of a DTV front-end demodulator, a backend decoder and a TV controller and offers high integration for advanced applications. It combines a transport de-multiplexer, a high definition video decoder, an audio decoder, a dual-link LVDS transmitter, a mini-LVDS transmitter (option), an EPI transmitter (option) and an NTSC/PAL/SECAM TV decoder with a 3D comb filter (NTSC/PAL).
  • Page 39 11. LVDS, mini-LVDS (option), EPI (option) 1.2. U3101 ( NT5CB64M16DP Description The 1Gb Double-Data-Rate-3 (DDR3/L) B-die DRAMs is double data rate architecture to achieve high-speed operation. It is internally configured as an eight bank DRAM. The 1Gb chip is organized as 16Mbit x 8 I/Os x 8 banks or 8Mbit x 16 I/Os x 8 bank devices. These synchronous devices achieve high speed double-data-rate transfer rates of up to 1866 Mb/sec/pin for general applications.
  • Page 40 1.3. U6102 (YAMAHA YDA175) Features Supply Voltage Range VDDP 5V*1) to 18V Input Digital Audio Interface (Stereo) Sampling Frequency: 32kHz, 44.1kHz, 48kHz Left-justified, MSB first, 1-bit delay, Digital Audio Data 24-bits Max. Instantaneous Output 15W×2ch (VDDP=15V, RL=8Ω, THD+N=10%) 10W×2ch (VDDP=12V, RL=8Ω, THD+N=10%) 10W×2ch (VDDP=12V, RL=6Ω, THD+N=10%) Max.
  • Page 41 · Operates With 3-V to 5.5-V VCC Supply · Operates up to 250 kbit/s · One Driver and One Receiver · Low Standby Current . . . 1 µA Typical · External Capacitors . . . 4 ´ 0.1 µF ·...

  • Page 42: Chapter 6.Block Diagram/Wiring Diagram

    CHAPTER 6.BLOCK DIAGRAM/WIRING DIAGRAM [1]BLOCK DIAGRAM LVDS OUT TUNER H702F 1Gb DDR3 HDMI1 Side HDMI2 Rear 8MB FLASH HDMI3 Rear Side MT5389 PC INPUT YDA175 SPEAKER AUDIO AMP YPbPr+CVBS ASPDIF SPDIF Output (NAFTA) Hotel Mode RS 232 (NAFTA) Earphone Earphone amp.DRV632 Side...

  • Page 43: Power Management Block Diagram

    [2]POWER MANAGEMENT BLOCK DIAGRAM There are 1 part circuits in Power board of this project (fig.1), Power circuits which is a single layer board, There are 3 output in the power parts, one is interface board including USB and TV tuner et; the other is inverter board and audio circuit.+24V output is inverter part.the system block diagram as below;...

  • Page 44: Main Unit Printed Wiring Board

    CHAPTER 7.PRINTED WIRING DIAGRAM [1]MAIN UNIT PRINTED WIRING BOARD (LC-32SV40U&LC-42SV50U&LC-46SV50U)
  • Page 45 BOTTOM...

  • Page 46: Power Unit Printed Wiring Board

    [2]POWER SCHEMATIC DIAGRAM- POWER BOARD WITH TOP/BOTTOM VIEW Top Layer...
  • Page 47 Bottom Layer...

  • Page 48: Key Unit Printed Wiring Board

    [3]KEY UNIT PRINTED WIRING BOARD [4] IR UNIT PRINTED WIRING BOARD...

  • Page 49: Chapter 8.Schematic Diagram

    CHAPTER 8.SCHEMATIC DIAGRAM [1]MAIN SCHEMATIC DIAGRAM 01 System POWER...
  • Page 50 02 MT5389...
  • Page 51 03 DDR3 DRAM/Flash.
  • Page 52 04 Peripheral / IR/Keypad /ESD...
  • Page 53 05 HDMI...
  • Page 54 06 VGA/RS-232/USB...
  • Page 55 07 YPbPr...
  • Page 56 08 Audio amp.
  • Page 57 09 Headphone/ line out /SPDIF...
  • Page 58 10 LVDS 11 Tuner...

  • Page 59: Power Schematic Diagram

    [2]POWER SCHEMATIC DIAGRAM 1) AC Input and EMI Filter:(fig.7) SG105 VZ105 RES--RT-WD165-075 6200V OTHER--SPARK-GAP-070 F102 RT101 SG104 RX103 4A/250V NTC 2.5Ω/8A 300V 470K FUSE--250 RES--RT-WD165-075 OTHER--SPARK-GAP-070 R1206 CY 101 CN101 LX101 LX102 1000p/250V RX101 A3963WR2-5P-A CHK-251 CAP--CSY -100 CHK-251 VZ101 CX101 CX102 VZ102...
  • Page 60 2) Standby Control&DC-DC&ACD Circuit:(fig.8) Fig.8 Hestsink1 RES--3W CAP--CC-050 HS-43.5X45.1 DIO--WKBJ RM102 CM102 KBJ1006G-FC 20ohm 3W 2200p/1kV +12V1 +12V2 +12V BD101 CAP--CE-D125-1250R LM102 QM102 LB101 CAP--CE-D125-1250R 1.25uH P1504EDG IND--H06110015 FERR BEAD IND--090 CAP--CP-1007-075 RM226 CP113 RM104 CM104 CM110 C0805-P CM106 CP110 CP111 2K 1% 68u/450V...
  • Page 61 +12V1 +12V2 COMP RM132 RM133 2K 1% R1206 RM135 CM135 20K 1% 100p/50V R1206 R0805-P C0805-P RM137 C0805-P UM105 CM138 5.1K 1% LTV-817M-C 0.1u/50V R0805-P R0805-P RM146 RM140 CM142 RM147 QM101 PSON R0805-P TRS--SOT23-BEC 33K 1% 0.01u/50V R0805-P CM143 RM149 IC--LTV817M C0805-P R0805-P...
  • Page 62 RM142 CM141 20ohm 2.2nF/50V R1206 C0805-P +12V IND--D140-112 LM103 15uH CHK-145 +24V CAP--CE-D100-1016R CM105 SR506F79-LF +12V 470u/35V DM101 CAP--CE-D100-1016R CAP--CE-D100-1016R CM126 CM127 CM128 60V ok. RM180 RM181 0.1u/50V DIO--DO201AD-200A 470u/35V 470u/35V CM160 CM129 4.7K 1% 4.7K 1% 0.1u/50V C0805-P 0.1u/50V R1206 R1206 DIO--1N4148...
  • Page 63 VCC1 CM152 CM151 1u/50V 1u/50V RM160 100K RM161 R0805-P RM165 R0805-P R0805-P R0805-P RM163 1M 1% RM164 R1206 NC/NC UM107 LTV-817M-C R0805-P RM169 RM168 NC/NC 1M 1% R1206 IC--LTV817M QM110 RM170 ZD104 MMBT4401 1M 1% R1206 5.6V RM175 TRS--SOT23-BEC CM159 DIO--ZD-1206 QM111 RM172...
  • Page 64 controller. If the voltage of EN/DIS pin exceeds the enable threshold voltage 1.2V or EN/DIS pin is floating, the system will be start-up. However, if the voltage of EN/DIS voltage is below the enable threshold voltage 0.8V, the system will be shut down completely and consume almost zero power. standby power application,...

  • Page 65: Key Schematic Diagram

    [3]KEY SCHEMATIC DIAGRAM ME. Top Down Sequence POWER_KEY INPUT MENU VOL- VOL+ CN901 4P 2.0mm 90° (W/L) To IF BD: ADC1 ADC1 To IF BD: ADC0 ADC0 C901 C902 R904 R901 R906 R907 R905 R903 R902 1000p/25V 1000p/25V 8.2K 1% 4.32K 1% 2.2K 1% 4.32K 1%...

  • Page 66: Chapter 9.Parts Guide

    CHAPTER 9.PARTS GUIDE [1]SPARE PARTS LIST Material 751202000-600-G Region Description LC-32LE440U 2011 年 12 Updated date Item Catalog Component no. Object description Usage Photo Panel PCBA Cosmetics...

  • Page 67: Cabinet Parts

    Cable Speaker 22 Accessory Screw [2]CABINET PARTS...

  • Page 70: Supplied Accessories

    [3]SUPPLIED ACCESSORIES Item Sharp PN DESCRIPTION 1 9JY600153G00886G Remote Controller,IR,NEC,8m,G,RC-LCDTV-520 Primary Battery,1.5V,Zn-Mn 9JY89010330021YG Battery,44.5mm*10.5mm,G,GLR03A 9JY01200019573 BASE ASSY,CTG04 9JY06000013236 SCREW,B,CROSS,M5*44.5,Zn-black 4 9JY08400017274 USER MANUAL NAFTA,CTG04 5 9JY08400017277 REGISTRATION CARD,NAFTA...

  • Page 71: Packing Parts

    [4]PACKING PARTS...

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