LC-30HV4E 1st Edition SERVICE MANUAL LCD COLOUR TELEVISION LC-30HV4E MODEL 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-30HV4E IMPORTANT SERVICE SAFETY PRECAUTION Ë Service work should be perfomed 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,...
LC-30HV4E REMOVING OF MAJOR PARTS Ë Ë Ë Ë Ë AVC System 1. Remove the five top panel retaining screws and slide the top panel backward to remove it. 2. Remove the four side panel retaining screws on both the right and left sides and slide the side panels backward to remove them.
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LC-30HV4E 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 rear chassis retaining screw.
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LC-30HV4E 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-30HV4E 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-30HV4E 7. Take off the digital PWB by detaching 7 connectors and removing 4 screws. 8. Take off the 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-30HV4E 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-30HV4E 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-30HV4E 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-30HV4E 2. In-process adjustment screen layout Page Program version Source of input Color system HDCP Main unit AV unit 1/13 TUNER NO SIG HDCP:OFF EUROPE EUROPE CENTER Version 2001 06 21A OSD Version XXXXXXXX CVIC Version XXXXXXXX TTXP Version XXXXXXXX ∫...
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LC-30HV4E Ë Ë Ë Ë Ë Adjustment parameters 1) Analog adjustment (1) AVC System voltage adjustment Adjustment items Adjustment conditions Adjustment procedures In-process adjustment Using the In-process adjustment remote controller, mode enter the in-process adjustments mode. (Check the destination.) Check that the destination is EUROPE.
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LC-30HV4E (3) PAL signal adjustment Adjustment items Adjustment conditions Adjustment procedures MAIN PAL Y 1. Adjust pin (1) of P801 to 0.70 ±0.025 Vp-p. CONTRAST adjustment MAIN PAL COLOR 1. Adjust pin (3) of P801 to GAIN adjustment 0.70 ±0.025 Vp-p.
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LC-30HV4E (5) N358 signal adjustment Adjustment items Adjustment conditions Adjustment procedures Setup 1. Set colour system to N358. 2. Select N358 source. 100% SMPTE colour bar or similar colour bar signal including 100% white. MAIN N358 Y 1. Adjust pin (1) of P801 to 0.70 ±0.025 Vp-p.
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LC-30HV4E (7) Component HDTV signal adjustment Adjustment items Adjustment conditions Adjustment procedures Setup 1. Input HDTV (1080i) component signal. 2. Select component source. 100% colour bar signal including 100% white, like split field colour bar MAIN COMP HDTV Turn off the PEAK ACL control.
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LC-30HV4E In-process adjustment items 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. Page Item Page Item ËPAL Y CONTRAST Maker Select...
LC-30HV4E 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.
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LC-30HV4E [Rewriting the monitor program] 1) Start terminal software in the in-process adjustment mode. (Terminal software is not supplied. Use a freeware program available on the Internet.) 2) Set as follows: Baud rate: 9600 Data length: 8 bits Parity: None...
LC-30HV4E ADJUSTMENT PROCEDURES (DISPLAY) See "Adjusting mode" for the steps to go into adjustment process mode. 1) +B adjustment (Digital PWB: R4648) 1. Receive PAL standard color bar signal. 2. Connect digital voltmeter to TP4602 and adjust to the specified value.
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LC-30HV4E 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-30HV4E 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 0 0 0 0...
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LC-30HV4E ADJUSTMENT MODE MENU LIST 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 No Toggle REF64 0 ~ 255...
LC-30HV4E MAJOR IC FUNCTIONS INFORMATIONS ∫ IC2501 (MSP4418G) 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-30/37HV4E uses a frame buffer to process video signals. This results in delay in outputting video signals.
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LC-30HV4E ∫ IC1901 (IXA392WJ) FPGA for synchronous processing This IC selects synchronization signals and creates horizontal blanking signals. ∫ IC604 (TA1318AF) IC for synchronous processing of TV component signals and measurement of frequency. This IC incorporates an input signal frequency measurement feature and synchronous regeneration features.
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LC-30HV4E ËRH-iXA385WJZZ (ASSY:IC2510) » 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 CPOUT...
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LC-30HV4E » Pin mapping Pin No. Pin Name Type Description –– Not connected I2C_CL I2C clock I2C_DA I2C data I2S_CL I2S clock I2S_WS I2S word strobe I2S_DA_OUT I2S data output I2S_DA_IN1 I2S1 data input ADR_DA ADR data output ADR_WS ADR word strobe...
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LC-30HV4E » 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-30HV4E » 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 –– Analog power supply (9V) AVCC ––...
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LC-30HV4E » 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-30HV4E » 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-30HV4E ËRH-iXA385WJZZ (ASSY:IC2510) » 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 –– Ground SP_HD Input of horizontal synchronization signal from synchronous separation IC...
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LC-30HV4E ËVHiTC90A69++1Y (ASSY:IC402) » 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 –– ADC GND (analog system) ––...
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LC-30HV4E ËRH-iX3270CEZZ (ASSY:IC1) » 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 D[31:24/PTB[7:0] Data bus D [31:24] / I/O port B [7:0]...
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LC-30HV4E » 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 Endian select...
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LC-30HV4E Ë9DK001-15079 (CXA3506R) (ASSY:IC4) 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-30HV4E 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-30HV4E 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-30HV4E SIGNAL BLOCK DIAGRAM (Display) CONFIG IIC IC2202 IC4902 HDCP( KEY) FIFO M E M O RY EEP -ROM Q O 0 -2 3 ,QE0-23 HSYNC,V SYNC KEY IIC DDC -IIC IC4901 CLOCK O S DR IV E ( ODD)
LC-30HV4E 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.
LC-30HV4E Ref. No. Part No. Description Code Ref. No. Part No. Description Code PARTS LIST IC1507 VHi7WH157FK-1Y J TC7WH157FK IC1801 VHiPQ070XH2-1Y J PQ070XH02ZP PARTS REPLACEMENT IC1802 VHiPQ070XH2-1Y J PQ070XH02ZP Replacement parts which have these special safety characteristics IC1803 VHiPQ070XH2-1Y J PQ070XH02ZP...
CPNLCA066WJ01 J Front Panel Ass’y Not Available – Front Panel — GCOVAA288WJSA J Door Cover GDORFA018WJSA J Door HBDGBA013WJSA J Badge, “SHARP” HDECQA166WJSA J LED Cover HiNDPA290WJSA J Indication Label JBTN-2074CEKB J Power Button LANGF9552CESA J Angle, for Door LANGTA024WJFW...
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LC-30HV4E CABINET AND MECHANICAL PARTS (Display)
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LC-30HV4E Ref. No. Part No. Description Code Ref. No. Part No. Description Code CABINET AND MECHANICAL PARTS (Display) DUNTKB593DE02 – FRONT Unit — DUNTKB594DE02 – SR Unit — CPCi-A005WJ51 – PC I/F Unit — QCNW-A847WJZZ J Connecting Cord(Main-AV) AD QCNW-A848WJZZ...
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LC-30HV4E CABINET AND MECHANICAL PARTS (AVC System) 6-18 6-12 6-18 6-17 6-15 6-14 6-18 6-10 6-11 6-13 6-16...