LC-30HV4U LC-30HV4D SERVICE MANUAL S33Y2LC30HV4U LCD COLOR TELEVISION LC-30HV4U LC-30HV4D 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.
LC-30HV4U LC-30HV4D IMPORTANT SERVICE SAFETY PRECAUTION Ë Service work should be performed only by qualified service technicians who are thor- oughly familiar with all safety checks and the servicing guidelines which follow: » Use an AC voltmeter having with 5000 ohm per volt,...
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LC-30HV4U LC-30HV4D PRECAUTIONS A PRENDRE LORS DE LA REPARATION Ë Ne peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement accoutumé à toute vérification de sécurité et aux conseils suivants. • Utiliser un voltmètre CA d'une sensibilité d'au moins AVERTISSEMENT 5000Ω/V pour mesurer la chute de tension en travers...
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LC-30HV4U LC-30HV4D Precautions for using lead-free solder 1 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.
LC-30HV4U LC-30HV4D SPECIFICATIONS Item 30 LIQUID CRYSTAL TELEVISION, Model: LC-30HV4U/D LCD panel 30 Advanced Super View & BLACK TFT LCD Number of dots 2,949,120 dots (1280 3dots) TV-standard (CCIR) American TV Standard NTSC System Function Receiving VHF/UHF VHF 2-13ch, UHF 14-69ch...
LC-30HV4U LC-30HV4D REMOVING OF MAJOR PARTS Ë Ë Ë Ë Ë AVC System 1. Remove the five top cabinet retaining screws and slide the top cabinet backward to remove it. 2. Remove the four side cover retaining screws on both the right and left sides and slide the side covers backward to remove them.
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LC-30HV4U LC-30HV4D 7. Remove the system/control terminal retaining: 7-1. Remove the four hex head screws securing the terminals of the system and control cables (white). 7-2. Remove the two screws securing the terminal of the system cable (gray). 7-3. Remove the two rear chassis retaining screws.
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LC-30HV4U LC-30HV4D 11. Remove the AV unit: 11-1. Remove the five AV unit retaining screws and remove the AV unit. 11-2. Remove the three AV unit angle retaining screws and remove the angle. 12. Remove the fan: 12-1. Remove the two cooling fan retaining screws and remove the cooling fan.
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LC-30HV4U LC-30HV4D Ë Ë Ë Ë Ë Display 1. Take off bottom terminal cover. 2. Take off the speaker by removing 4 screws and disconnecting speaker terminals. 3. Take off the table stand by removing 6 screws. 4. Take off the rear cabinet by removing 18 screws and releasing the front cabinet's 6 hooks.
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LC-30HV4U LC-30HV4D 7. Take off the LCD control PWB by detaching 7 connectors and removing 4 screws. 8. Take off the R/C, LED PWB by detaching one connector and removing 2 screws. 9. Take off the speaker (L) PWB by detaching one connector and removing one screw.
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LC-30HV4U LC-30HV4D 15.Take off the inverter GND PWB by removing 2 screws. 16.Take off the power PWB by removing 7 screws. Remove insulation sheet. 17.Take off the inverter-1 PWB by removing 3 screws. 18.Take off the inverter-2 PWB by removing 3 screws 19.Take off the 4 reinforcement angles by removing 2 screws from each angle.
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LC-30HV4U LC-30HV4D 23.Take off the LCD panel with panel shield by removing 4 screws. 24.Take off D-BEF sheet, prism sheet and diffusion sheet. Take off ITO sheet and diffusion panel by removing 2 screws. 25.Take off the panel shield by removing 6 screws and 2 in the center.
LC-30HV4U LC-30HV4D ADJUSTMENT PROCEDURES (AVC SYSTEM) Preparation for adjustment 1. The product has been adjusted and optimized in the factory. If the product needs to be readjusted for some reason, e.g., after parts replacement, follow the instructions shown below. 2. Control parameter values set in the in-process adjustment mode has been stored in the corresponding registers.
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LC-30HV4U LC-30HV4D 2. In-process adjustment screen layout Page Program version Source of input Color system HDCP 1/15 TUNER A NO SIG HDCP:ON CENTER Version 2001 06 21A OSD Version XXXXXXXX CVIC Version XXXXXXXX ∫ ∫ ∫ ∫ ∫ ∫ ∫...
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LC-30HV4U LC-30HV4D 1) Analog adjustment (1) Voltage adjustment Item Adjusting conditions/points Adjusting procedure • Connect a DC voltmeter to TP4 on the PC I/F unit. 3.3 V Adjustment Page: 2 Location: TP4 Move the cursor to "Ë+Badj.3.3V" and use "VOL" (+) and (–) keys to adjust the voltage to 3.30 ±...
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LC-30HV4U LC-30HV4D (2) Tuner adjustment Item Adjusting conditions/points Adjusting procedure • Use a signal generator to provide the tuner with a Signal setting Signal: NTSC RF Signal RF signal of 193.25 MHz on the split field color bar. • The color saturation of the color bar must be 75%.
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LC-30HV4U LC-30HV4D (3) NTSC signal adjustment Item Adjusting conditions/points Adjusting procedure • Use a signal generator to provide the split field color Signal setting Signal: NTSC bar to the video image input pin of video input 1. Split field color bar •...
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LC-30HV4U LC-30HV4D Item Adjusting conditions/points Adjusting procedure MAIN N358 TINT Page: 3 Adjust "MAIN N358 TINT" so that the bottom edges Adjustment Location: Pin (3) of P801 of the waveform at pin (3) of P801 are in line with each other as shown below.
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LC-30HV4U LC-30HV4D (4) Component 15 kHz signal adjustment Item Adjusting conditions/points Adjusting procedure Signal setting Signal: Provide the 100% color bar source of component 15k N358 TINT Component 15k to the component input pin of video input 1. 100% color bar...
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LC-30HV4U LC-30HV4D 2) Digital white balance adjustment (1) NTSC signal adjustment Item Adjusting conditions Adjusting procedure 1. Provide the adjusting N358 signal (adjustment conditions) to the video image input pin of Setting video input 1. Page: 8 1. Press "1" on the remote controller in the process...
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LC-30HV4U LC-30HV4D (3) Component HDTV signal adjustment Item Adjusting conditions Adjusting procedure 1. Provide the adjusting 1080i component signal (adjustment conditions) to the component Setting vide input pin of video 1. Page: 10 1. Press "1" on the remote controller in the process...
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LC-30HV4U LC-30HV4D 4. Factory setting Item Adjusting conditions Adjusting procedure 1. Move the cursor to the "INDUSTRY INIT" line, use the INDUSTRY INIT Page: 1 VOL key to turn the system on and press the ENTER key. Factory setting is complete when the process adjustment menu disappears and the system enters the TUNER input mode.
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LC-30HV4U LC-30HV4D Ë Ë Ë Ë Ë Adjustment Model Menu List (AVC System) Do not change items, the adjustment procedure of which is not described in this manual. Inadvertent changes of such items may result in unexpected or unrecoverable errors.
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LC-30HV4U LC-30HV4D PAGE LINE NAME FUNCTION COMPHDTV G CUTOFF CompHDTVGCutoff_Disp(x,y,line) COMPHDTV B CUTOFF CompHDTVBCutoff_Disp(x,y,line) COMPHDTV R DRIVE CompHDTVRDrive_Disp(x,y,line) COMPHDTV G DRIVE CompHDTVGDrive_Disp(x,y,line) COMPHDTV B DRIVE CompHDTVBDrive_Disp(x,y,line) 3D_DYCOR_Standard DimensionDYCOR_Standard_Disp( x, y, line ) 3D_DYGAIN_Standard DimensionDYGAIN_Standard_Disp( x, y, line ) 3D_DCCOR_Standard DimensionDCCOR_Standard_Disp( x, y, line )
LC-30HV4U LC-30HV4D UPGRADING INSTALLED PROGRAMS Programs installed in the product are mainly divided into the following two categories: ∫ Main programs (for AVC system) ∫ Monitoring program (for display) CAUTON: Exercise great care to hide the procedure in entering the in-process adjustment mode from the customer.
LC-30HV4U LC-30HV4D ADJUSTMENT PROCEDURES (DISPLAY) See "Adjusting mode" for the steps to go into adjustment process mode. 1) +B adjustment (LCD Control PWB: R4648) 1. Receive NTSC standard color bar signal. 2. Connect digital voltmeter to TP4602 and adjust to the specified value.
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LC-30HV4U LC-30HV4D 3. Adjusting Mode 1. Overview The controller IC can be adjusted in this mode. Adjustment is done while controlling the setting of the resistor corresponding to the selected adjustment item. When monitor is used independently, it is adjusted using the OSD simple display function incorporated in LCD controller.
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LC-30HV4U LC-30HV4D b) Adjustment on the TEST items 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 T E S T 2 O L E R R L C D D A T A...
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LC-30HV4U LC-30HV4D Ë Ë Ë Ë Ë Adjustment Mode Menu List (Display) First layer item PAGE ITEM SETTING RANGE INITIAL VALUE DATA SETTING MODE 50HZ/60HZ/PC 50HZ Toggle 0 ~ 255 No Toggle REF0 0 ~ 255 No Toggle VL64 0 ~ 255...
LC-30HV4U LC-30HV4D MAJOR IC INFORMATIONS ∫ IC2501 (MSP4448G) IC for decoding audio signals. It serves as an S-IF audio signal decoder and an audio data selector. ∫ IC2510 (IXA385WJ) IC for controlling audio delay. LC-30/37HV4U uses a frame buffer to process video signals. This results in a delay in outputting video signals.
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LC-30HV4U LC-30HV4D ∫ IC402 (TC90A69) Adaptive infield 3-line digital comb filter supporting both NTSC and PAL. This IC is a high-precision Y/C 1 chip incorporating a CNR circuit and performs YC separation of the sub video signals received from IC1301.
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LC-30HV4U LC-30HV4D ∫ PC I/F unit ∫ IC10004 (CXA3506R) 3-ch, 8-bit 120MSPS A/D converter incorporating AMP and PLL. This IC process video signals supplied to the interface board. On the main side, video signals (analog RGB) from CN6 are inputted to IN1 of IC10004. On the PC side, vide signals (analog RGB) from CN8 are inputted to IN2 of IC10004.
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LC-30HV4U LC-30HV4D ËVHIPD6408+-1S (ASSY:IC7001) 3D Y/C separation LSI incorporates 4M-bit memory » Pin mapping Pin No. Pin Name Type Description 1,33,48,75 DGND –– Digital GND (same as I/O) 39,62,100 DVDD –– Digital 2.5V Power 4-12,28-30, TEST01- TEST pin (Open or GND)
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LC-30HV4U LC-30HV4D ËRH-iXA385WJZZ (ASSY:IC2510) DELAY » Pin mapping Pin No. Pin Name Type Description 1, 19, 32, 33 –– Power supply 44, 64 PLLVDC –– PLL power supply VCOIN VCO IN (used to construct external loop filter) TEST Input for testing...
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LC-30HV4U LC-30HV4D » Pin mapping Pin No. Pin Name Type Description Video signal input Composite video signal input Y/C separation signal input, used for luminance signal input YIN1: Input for signal created by Y/C separation of VOUT1 output YIN1 Y/C separation signal input, used for chrominance signal input...
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LC-30HV4U LC-30HV4D » Pin mapping Pin No. Pin Name Type Description VIDEO 1-L1 D-pin connection line input VIDEO 1-L2 VIDEO 1-L3 VIDEO 2-L1 VIDEO 2-L2 VIDEO 2-L3 VIDEO 3-L1 VIDEO 3-L2 VIDEO 3-L3 4, 14, 39,45, 52, 58 VCC ––...
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LC-30HV4U LC-30HV4D » Pin mapping Pin No. Pin Name Type Description CVBS1/Y1-IN CVBS1 or Y1-IN signal input SYNC-IN Synchronization signal input CVBS-OUT CVBS or Y+C signal output Output of counted-down vertical synchronization signal COMB Y-IN Input of Y signal outputted from comb filter. Open when not used D-VDD ––...
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LC-30HV4U LC-30HV4D » Pin mapping Pin No. Pin Name Type Description IN2-H IN2-H: Independent H periodic signal input IN2-V IN2-V: Independent V periodic signal input IN2-1 IN2 system signal input IN2-2 IN2-3 Vcc-MAT –– Power supply to selector or synchronous processing modules...
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LC-30HV4U LC-30HV4D ËRH-iXA392WJZZ (ASSY:IC1901) PLD (Programmable Logic Device) » Pin mapping Pin No. Pin Name Type Description –– Non-connection SP_CP2 Input of clamp signal from synchronous separation IC (for 15K system) SP_VD Input of vertical synchronization signal from synchronous separation IC ––...
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LC-30HV4U LC-30HV4D ËVHiTC90A69++1Y (ASSY:IC402) 3 Line Digital Comb Filter (NTSC/PAL) » Pin mapping Pin No. Pin Name Type Description BIAS –– ADC bias –– ADC upper limit bias VDD1 –– ADC and DAC power supply (analog system) TESTI1 Input for testing VSS2 ––...
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LC-30HV4U LC-30HV4D ËRH-iX3270CEZZ (ASSY:IC10001) 32-bit RISC Micro Processor » Pin mapping Pin No. Pin Name Type Description 34, 36-44, D[15:0] Data bus D [15:0] 46, 48-52 23-26, 28, 30-32 D[23:16/PTA[7:0] Data bus D [23:16] / I/O port A [7:0] 13-18, 20, 22...
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LC-30HV4U LC-30HV4D » Pin mapping Pin No. Pin Name Type Description RESETP Power-on reset request RESETM Manual reset request BREQ Bus request BACK Bus ACK 2, 1, 144 MD[2:0] Clock mode select 196, 195 MD[4:3] Area 0 bus width select...
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LC-30HV4U LC-30HV4D Ë9DK001-15079 (CXA3506R) (ASSY:IC10004) 3-channel, 8-bit, 120MSPS A/D converter amplifier PLL » Pin mapping Pin No. Pin Name Type Description B/CbOUT Amplifier output signal monitor ADDRESS I2C slave addressing R/CrOUT Amplifier output signal monitor –– Not used –– Not used...
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LC-30HV4U LC-30HV4D Pin No. Pin Name Type Description R/CrIN1 R/Cr signal input 1 AVCCAMPR –– R/Cr amplifier power supply R/CrIN2 R/Cr signal input 2 AGNDAMPR –– R/Cr amplifier GND G/YOUT Amplifier output signal monitor DACTEST Input for testing amplifier control resistor DAC...
LC-30HV4U LC-30HV4D TROUBLE SHOOTING TABLE (AVC System) Power cannot be turned on. (The power LED on the front panel does not light up). Plug the power cable connector and retry to turn on the Is the power cable connected properly? power.
LC-30HV4U LC-30HV4D DESCRIPTION OF SCHEMATIC DIAGRAM VOLTAGE MEASUREMENT CONDITION: 1. When the exclusive-use AC adapter is used, the colour bar signal of colour bar generator for service is input to get the normal screen. When the audio is minimized, the voltage value is measured with the 20 kΩ/V tester.
4. DESCRIPTION in USA: Contact your nearest SHARP Parts Distributor to order. in CANADA: Contact SHARP Electronics of Canada Limited For location of SHARP Parts Distributor, Please call Toll- Phone (416) 890-2100 Free; 1-800-BE-SHARP MARK: SPARE PARTS-DELIVERY SECTION MARQUE: SECTION LIVRAISON DES PIECES DE RECHANGE Ref.
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LC-30HV4U LC-30HV4D Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB493FE07 (LC-30HV4U) DUNTKB593DE30 (LC-30HV4U) DUNTKB493FE08 (LC-30HV4D) DUNTKB593DE31 (LC-30HV4D) POWER Unit (AVC System) (Continued) FRONT Unit (AVC System) INTEGRATED CIRCUITS R1734 VRS-CY1JF332FY J 3.3k 1/16W Metal Oxide...
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LC-30HV4U LC-30HV4D Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB593DE30 (LC-30HV4U) R2475 VRS-CY1JF103JY J 10k 1/16W Metal Oxide DUNTKB593DE31 (LC-30HV4D) R2476 VRS-CY1JF103JY J 10k 1/16W Metal Oxide R2477 VRS-CY1JF103JY J 10k 1/16W Metal Oxide FRONT Unit (AVC System) (Continued)
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LC-30HV4U LC-30HV4D Ref. No. Part No. Description Code Ref. No. Part No. Description Code DUNTKB594DE30 (LC-30HV4U) DUNTKB658FE01 (LC-30HV4U) DUNTKB594DE31 (LC-30HV4D) DUNTKB658FE02 (LC-30HV4D) SR Unit (AVC System) AV Unit (AVC System) DIODES TUNER D6000 VHDMA157A//-1Y J Diode NOTE: THE PARTS HERE SHOWN ARE SUPPLIED AS AN...
LANGTA027WJFW J Stand Angle DUNTKB401FE07 – MAIN Unit — LHLDW1021GE00 J Wire Holder, x2 DUNTKB493FE07 – POWER Unit (LC-30HV4U) — LHLDW1139CEZZ J Wire Holder, x1 DUNTKB493FE08 – POWER Unit (LC-30HV4D) — PZETZA008WJZZ J Insulating Sheet DUNTKB593DE30 – FRONT Unit (LC-30HV4U) —...
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LC-30HV4U LC-30HV4D CABINET AND MECHANICAL PARTS (Display)
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