Sharp Aquos LC 20D30U Service Manual Download Page 56

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LC-20D30U

INV_POW,OFL_DAC

RR1XC/0/1/2-/+

SHORT_DET

S_SW

S_RESET(IC2001)

S_IF

SCL,SDA(5V )

1.5V

3.3V

2.5V

8.5V

3.3V

U_D,L_R

AC 110~240V

INVERTER

LCD MODULE

Sound Decoder

IC1301

Q3411

Q3412

Video SW

IC3402

MAIN

Video Decoder

Scaler

IC801

AD CONVERTER

IC8701

IC1203

IC401

LCD MODULE

RMC4000

D4000/D4001

IC4000

IC2001

IC2009

IC2002

IC2006

BU CAP

C5001

J3402

J3406

J3402

COMPONENT

J3405

J3404

J3406

J3402

SC401

SC402

AUDIO AMP

IC3301

IC7702

IC7703

IC7704

IC7705

D7701

C7703

T7701

CONTROL

S4051-S4057

J3402

Q803

Q804

Q805

IC402

IC2010

IC7004

Q3416

Q3407

J4000

IC3401

IC403

HP AMP

IC1303

Q3401-Q3403

MUTE

Q3304

Q8701

Q8702

Q8703

HDCP

IC8704

IC701

IC702

IC704

IC706

5V Reg

IC2003

3.3V Reg

IC2011

2.5V Reg

IC8703

3.3V Reg

IC802

3.3V Reg

IC8702

AC_CTRL(IC2001)

AC/DC

SIG_VCC(12V)

V IN/OUT

AV1_V

KEY1,KEY2,POW2

COMP_Y,Pb,Pr

AV1_SY,SC

TV_V

AFT

AV2_L/R

COMP_L/R

PC_L/R

AUDIO IN

PC AUDIO IN

AV2 MUTE

AV1_L/R

DC/DC

INV_VCC(24V)

POW(IC2001)

SP_L/R

L_MUTE

S_STBY(IC2001)

DACM_R/L

S IN/OUT SW

S_IN/OUT,L_MUTE

SIF AMP

V IN/OUT SW

TV_SEL,V_SEL,V_IN/OUT

CVBS

OPC

IR Receiver

LED

HP JACK

LED

OPC

IREM

HP_DET

HP_L/R(IC1303)

OPC_LED,POW_LED,TIMER_LED

SP_MUTE,HP_MUTE

AC_CTRL,POW

AC_DETECT

MCU

OFL_PWM

I2C

RESET

EEPROM

TEMP SENSOR

MPWEH,MPWEL,MPOE,MPCE

32V

CLKIN-/+,RIN1/2/3-/+

LVDS Transmitter

LV_PCLK,LV_R/G/B

HP_L/R

LCD CONTROLLER

EEPROM

SDA,SCL

I2S_DA_TO_MSP,I2S_CLK,I2S_WS

Buffer

Y,Pb,PR

AD_VSO/HSO/CKO,B/G/RO0-7

EEPROM

SDA,SCL

PC_H,PC_V

PC_R/G/B

PC IN

HDMI IN

EEPROM

SDA
SCL

H,V

R/G/B

SDA,SCL

COMPONENT V IN

AV2VIDEO V IN/OUT

AV1 VIDEO IN

SUB

AV1 AUDIO IN

AV2 AUDIO IN

DC/DC

Buffer

Schmitt trigger

TUNER
TU3401

BLOCK DIAGRAM

Summary of Contents for Aquos LC 20D30U

Page 1: ...e without notice LCD COLOR TELEVISION CONTENTS IMPORTANT SERVICE SAFETY PRECAUTION 2 SPECIFICATIONS 5 OPERATION MANUAL 6 DIMENSIONS 8 REMOVING OF MAJOR PARTS 9 ADJUSTING PROCEDURE OF EACH SECTION 13 PUBLIC MODE SETTING PROCEDURE 38 TROUBLE SHOOTING TABLE 44 MAJOR IC INFORMATION 50 BLOCK DIAGRAM 56 OVERALL WIRING DIAGRAM 58 DESCRIPTION OF SCHEMATIC DIAGRAM 60 SCHEMATIC DIAGRAM ËR C LED Unit 61 ËMAI...

Page 2: ...ment parts shown in this service manual may create shock fire or other hazards WARNING 1 For continued safety no modification of any circuit should be attempted 2 Disconnect AC power before servicing BEFORE RETURNING THE RECEIVER Fire Shock Hazard Before returning the receiver to the user perform the following safety checks 1 Inspect all lead dress to make certain that leads are not pinched and ch...

Page 3: ... accidents AVERTISSEMENT 1 N entreprendre aucune modification de tout circuit C est dangereux 2 Débrancher le récepteur avant toute réparation VERIFICATIONS CONTRE L INCEN DIE ET LE CHOC ELECTRIQUE Avant de rendre le récepteur à l utilisateur effectuer les vérifications suivantes 1 Inspecter tous les faisceaux de câbles pour s assurer que les fils ne soient pas pincés ou qu un outil ne soit pas pl...

Page 4: ... is higher than the conventional lead solder by 40 C and as it has poor solder wettability you may be apt to keep the soldering bit in contact with the PWB for extended period of time However Since the land may be peeled off or the maximum heat resistance temperature of parts may be exceeded remove the bit from the PWB as soon as you confirm the steady soldering condition Lead free solder contains...

Page 5: ...VIDEO OUT INPUT4 HDMI IN with HDCP 640 480 480P 576P 720P 1080I INPUT5 PC Connector 15 pin mini D sub PC AUDIO Mini jack for stereo ø3 5 mm Antenna F Type Headphone Mini jack for stereo ø3 5 mm OSD language English Spanish French Power supply AC 110 240V 50 60Hz Power consumption 77 W 0 6 W standby AC 120V Weight Display only 15 5 lbs 7 0 kg Display with stand 17 5 lbs 7 9 kg Operating temperature...

Page 6: ...o the carrying handle while securely holding down the stand with your other hand How to adjust the angle Listening with Headphones Ë Plug the headphone mini plug into the headphone jack located on the front of the main unit Headphones are not included in the supplied accessories No sound is heard from the main unit speakers when a headphone mini plug is connected into the headphone jack Do not set...

Page 7: ... explosion Be sure to follow the instructions below Place batteries with their terminals corresponding to the and indications Different types of batteries have different characteristics Do not mix batteries of different types Do not mix old and new batteries Mixing old and new batteries can shorten the life of new batteries and or cause old batteries to leak chemicals Remove batteries as soon as t...

Page 8: ...SIONS Unit inch mm 3 61 64 100 10 31 64 266 15 381 21 15 64 539 5 43 64 144 9 17 32 242 2 5 8 66 5 4 1 32 102 3 61 64 100 2 9 64 54 17 17 32 445 2 9 57 64 251 17 9 64 435 15 7 16 392 1 45 64 43 10 31 64 266 16 5 16 414 ...

Page 9: ...terminal screws 2 pcs 6 Remove the cabinet B fixing screws 5 pcs 7 Remove the cabinet B after opening from the direction of an arrow 8 Remove the stand angle fixing screws 4 pcs 9 Disconnect all the connectors from all the PWBs Cabinet B 7 5 2 3 1 6 5 4 Carrying Handle Terminal Cover Cabinet A Stand Stand Cover P5001 P1201 SC5204 P7703 P2003 P2002 SC4000 Stand Angle Main PWB R C LED PWB 9 9 9 9 8 ...

Page 10: ...and the PWB fixing angle Detach the chassis frame together with its terminals from the sub PWB 13 Remove the R C LED PWB fixing screws 2 pcs 14 Remove the 4 lock screws each from the right and left speakers and take out both the speakers 15 Remove the LCD panel module unit fixing screw 4 pcs Main PWB PWB Fixing Angle Sub PWB Chassis Frame Speaker R 10 10 15 15 14 14 11 12 12 13 Speaker L LCD Panel...

Page 11: ...heet Top lens sheet diffusion Bottom diffusion plate Note Fit the diffusion plate and sheets tightly in the backlight casing If set out of position the panel may set cracked 21 Remove the lamp holder screws 4 pcs 22 Remove the lamp holder from the lamp unit 23 Remove the lamp clip from the reflection sheet and the backlight angle 24 Remove the reflection sheet from the backlight angle C C C C Inve...

Page 12: ... main PWB detach the PWB from the chassis frame and then turn it over 2 Connect the service specific extension FFC flat cable QCNW D721WJQZ between the main PWB SC5201 and the sub PWB P5002 3 Connect the service specific extension FFC flat cable QCNW D721WJQZ between the main PWB SC5202 and the sub PWB P5003 4 Connect the service specific extension FFC flat cable QCNW D721WJQZ between the main PWB...

Page 13: ...rvicing 1Hold down the INPUT SELECT and VOL keys at once and turn on the power switch K appears at the top left of the screen to indicate the inspection process mode 2Next hold down the CH Ù and VOL keys at once The adjustment process mode screen shows up To clear this mode just turn off the power Either the power switch on the set or the remote controller may be used for this purpose 3 Key operat...

Page 14: ...h the set s power off write the updated version data from the checker land to the E2PROMs for PC input analog IC401 and HDMI input digital IC403 Write the data before making the HDMI inspection Otherwise the adjustment can t be made For the 2006 production write data refer to the accompanying document You are requested to modify the production year and check sum according to the production year 4 ...

Page 15: ...768 H 48 36 kHz V 60 00 Hz 2 Turn on the AUTO GAIN2 item on Adjustment Process Page 8 7 2 TAMP adjustment 1 Receive the standard color bar signal 2 Suppose that the YDATA reading on Adjustment Process Page 2 is not as specified in the table below Adjust the NTSC TAMP setting on the same page to have the YDATA reading as specified below Note that the setting may be different from model to model 3 M...

Page 16: ...n RGB GAIN Fix the G GAIN setting at 0 Adjustment range 80 Vary the R B GAIN settings accordingly For the adjustment use Minolta CA 210 at Engineering Department and for the calibration use CH02 TOPCON mode Make measurements in the interchangeable mode with Production Department and Production Engineering Department 7 4 Common bias adjustment 1 Generate the built in signal 2 Adjust the VR1 on the ...

Page 17: ... CAN FRENCH RATINGS G 8 ans 13 ans 16 ans 18 ans STATUS ON OFF OFF CC1 CC2 T1 T2 TV INPUT2 INPUT3 COLOR SYSTEM AUTO N358 N443 PAL PAL M PAL N SECAM PAL60 N358 PAL M PAL N only in the TV mode N358 AUTO AUTO HDMI SETUP SIGNAL TYPE AUTO RGB YCbCr COLOR MATRIX AUTO ITU601 ITU709 AUTO DYNAMIC RANGE STANDARD OUT OF STANDARD STANDARD AUTO VIEW ENABLE DISABLE ENABLE PC SETTING 1024x768 60Hz FINE SYNC H PO...

Page 18: ...USTMENT2 SEE ADJUSTMENT PROCEDURE RGB GAMMA 0 9 RGB γ COEFFICIENT SETTING NOT USED COMPONENT AD ADJUSTMENT 7 AUTO GAIN OFFSET1 OFF AUTOMATICADJUSTMENTOFF RUN OFAD9883 GAINAND OFFSET SEE ADJUSTMENT PROCEDURE AD R GAIN 185 1125I 750P INPUT RED GAIN ADJUSTMENT SEE ADJUSTMENT PROCEDURE AD G GAIN 185 1125I 750P INPUT GREEN GAIN ADJUSTMENT SEE ADJUSTMENT PROCEDURE AD B GAIN 185 1125I 750P INPUT BLUE GAI...

Page 19: ...TO GO TO TUNER ADJUSTMENT PAGE OTHERS SHIFT TO OTHERS ADJUSTMENT PAGE PRESS ENTER KEY TO GO TO OTHERS ADJUSTMENT PAGE Page No Item Initial Function Servicing notes precautions Value AUDIO ADJUSTMENT PROCESS DEFAULTS CHART AUDIO ADJUSTMENT SOUND1 VOLUME 20 SOUND VOLUME NOT USED MSP DATA 0 AUDIO IC MSP DATA WRITE AND READ NOT USED MSP DATA WAIT WRITE AND READ EXECUTION NOT USED CARRIER MUTE ON AUDIO...

Page 20: ...8 N358 TINT SETTING TV NOT USED N358 AV TINT 138 N358 TINT SETTING COMPOSITE S VIDEO NOT USED N358 TV SHARP V 100 N358 V SHARPNESS SETTING TV NOT USED N358 AV SHARP V 100 N358 V SHARPNESS SETTING COMPOSITE S VIDEO NOT USED N358 TV SHARP H1 200 N358 H SHARPNESS SETTING 1 TV NOT USED N358 AV SHARP H1 200 N358 H SHARPNESS SETTING 1 COMPOSITE S VIDEO NOT USED N358 TV SHARP H2 150 N358 H SHARPNESS SETT...

Page 21: ... PAL N TV CONT 137 PAL N CONTRAST SETTING TV NOT USED PAL N AV CONT 137 PAL N CONTRAST SETTING COMPOSITE S VIDEO NOT USED PAL N TV BRIGHT 128 PAL N BRIGHTNESS SETTING TV NOT USED PAL N AV BRIGHT 128 PAL N BRIGHTNESS SETTING COMPOSITE S VIDEO NOT USED PAL N TV COLOR 48 PAL N COLOR DENSITY SETTING TV NOT USED PAL N AV COLOR 48 PAL N COLOR DENSITY SETTING COMPOSITE S VIDEO NOT USED PAL N TV TINT 138 ...

Page 22: ...USED 1125I SHARP H2 100 1125I H SHARPNESS SETTING 2 TV NOT USED 750P CONT 137 750P CONTRAST SETTING COMPOSITE S VIDEO NOT USED 750P BRIGHT 128 750P BRIGHTNESS SETTING COMPOSITE S VIDEO NOT USED 750P COLOR 64 750P COLOR DENSITY SETTING COMPOSITE S VIDEO NOT USED 750P TINT 140 750P TINT SETTING COMPOSITE S VIDEO NOT USED 750P SHARP V 100 750P V SHARPNESS SETTING TV NOT USED 750P SHARP H1 100 750P H ...

Page 23: ...D AFT NEARTIME 10 CHANNEL PRESET TIME ADJUSTMENT 3 NOT USED AFT 1STEPTIME 10 CHANNEL PRESET TIME ADJUSTMENT 4 NOT USED AFT CSYNCTIME 50 CHANNEL PRESET TIME ADJUSTMENT 5 NOT USED SYNC ON 10 CHANNEL PRESET TIME SYNC DETECTION NOT USED NUMBER OF CONTINUOUS MATCHINGS CH SEARCH AIR CABLE DETECTION CLOCK SYNC DETECTION SYNC WIDTH 1 CHANNEL PRESET TIME SYNC DETECTION NOT USED THRESHOLD LEVEL SYNC ON WHEN...

Page 24: ...p 10 0 700 0 000 0 700V p p 11 4bit Black level setup required 1 None 0 0 3bit Hsync Vsync support 1 None 0 1 2bit Csync Hsync line support 1 None 0 0 1bit Sync signal support for green video signal 1 None 0 0 0bit Csync or Vsync at sync green video signal 0 Sawtooth waveform 1 Others 0 15 Maximum horizontal image size 1 255cm when not determined 00h Horizontal size 44cm 2C 16 Maximum vertical ima...

Page 25: ...ial timing 3 7bit 1152x870 75Hz support 1 None 0 0 00 manufacturer s timing 6 0bit Number of original timings if any No of timings to be counted up as 1 from 6bit 0000000 26 Reference timing ID1 Horizontal effective pixels 8 31 when not used 01h Horizontal pixels 01 27 other than official timing 7 6bit Aspect ratio 1 1 00 when not used 01h Aspect ratio 01 4 3 01 5 4 10 16 9 11 5 0bit Refresh rate ...

Page 26: ...A 59 20 5A Details 3 Monitor Same as Details 1 00 5B 00 5C 00 5D 10 5E 00 5F 00 60 00 61 00 62 00 63 00 64 00 65 00 66 00 67 00 68 00 69 00 6A 00 6B 00 Details Clock 79 50 Hz Horizontal pixels 1280 pixels Horizontal blanking 384 pixels Vertical lines 768 lines Vertical blanking 30 lines Horizontal offset 64 pixels Horizontal pulse width 128 pixels Vertical offset 3 lines Vertical pulse width 7 lin...

Page 27: ...Details 4 Monitor 00 6D 00 6E 00 6F 10 70 00 71 00 72 00 73 00 74 00 75 00 76 00 77 00 78 00 79 00 7A 00 7B 00 7C 00 7D 00 7E Extension flag 00h 00 7F Check sum 128 bytes 00h when all added In the case of year 2006 73 ...

Page 28: ...p p 11 4bit Black level setup required 1 None 0 0 3bit Hsync Vsync support 1 None 0 0 2bit Csync Hsync line support 1 None 0 0 1bit Sync signal support for green video signal 1 None 0 0 0bit Csync or Vsync at sync green video signal 0 Sawtooth waveform 1 Others 0 15 Maximum horizontal image size 1 255cm when not determined 00h Horizontal size 44cm 2C 16 Maximum vertical image size 1 255cm when not...

Page 29: ...t 1 None 0 0 25 Official timing 3 7bit 1152x870 75Hz support 1 None 0 0 00 manufacturer s timing 6 0bit Number of original timings if any No of timings None to be counted up as 1 from 6bit 0000000 26 Reference timing ID1 Horizontal effective pixels 8 31 when not used 01h Horizontal pixels 01 27 other than official timing 7 6bit Aspect ratio 1 1 00 when not used 01h 01 01 4 3 01 5 9 10 16 9 11 5 0b...

Page 30: ...rtical image size 7 4bit Horizontal image size 11 8bit 10 High order 4 bits 3 0bit Vertical image size 11 8bit 45 Horizontal boundary when not available 00h pixels 00 46 Vertical boundary when not available 00h lines 00 47 Flag 7bit Non interlace 0 Interlace 1 1 9E 6 5 0bit Normal display without stereo 000 000 Field sequential stereo with stereo sync 1 Right 010 Left 100 2 way interleaved stereo ...

Page 31: ...ertical rate integers only Byte7 Minimum horizontal frequency integers only Byte8 Maximum horizontal frequency integers only Byte9 Maximum support pixel clock MHz 10 Max FFh Byte10 17 VESA GTF in use Byte10 GTF not used 00h Byte11 GTF not used 0Ah Byte12 17 GTF not used 20h FCh Monitor name 0Ah at end when blank 20h FBh Color characteristic data added FAh Standard timing ID added F9h 10h Not defin...

Page 32: ... than RGB 4 2 2 YCbCr 4 2 2 1 Below 3bit Total number of conventional formats with 18 byte detailed description Total Format 1 84 CEA Data 7 5bit Video Tag Code Code 2 49 Block Collection Code 0 Reserved Length 9 1 Audio Data Block 00001001 2 Video Data Block Video data 3 Vendor Specific Data Block code declared 4 Speaker Allocation Data Block 5 7 Reserved 4 0bit Length No of bytes for supporting ...

Page 33: ...o 1 00001001 09 Description Uncompressed audio data PCM 7bit Reserved 6 3bit Audio Format Code 0001 2 0bit Max Number of channels 1 2 CEA Short Audio Descriptor for compressed audio Compressed audio data 7bit Reserved 6 3bit Audio Format Code 0 Reserved 1 Linear PCM eg IEC60958 2 AC 3 3 MPEG1 Layers 1 2 4 MP3 MPEG3 Layer 3 5 MPEG2 multichannel 6 AAC 7 DTC 8 ATRAC 9 Reserved for audio format 9 14 R...

Page 34: ...ck 10 000 7 0bit Clock 27 00MHz 8C 9D Pixel clock 15 8bit 0A 9E No of horizontal pixels 2D0h Horizontal pixels 720 D0 Low order 8 bits 9F Horizontal blanking Low order 8bits 08Ah Horizontal blanking 138 8A A0 Horizontal pixels horizontal blanking 7 4bit Horizontal pixels 11 8bit 20 High order 4 bits A1 No of vertical lines Low order 8 bits 1E0h Vertical lines 480 E0 A2 Vertical blanking Low order ...

Page 35: ...20 High order 4 bits 3 0bit Horizontal blanking 11 8bit B3 No of vertical lines Low order 8 bits 240h Vertical lines 576 40 B4 Vertical blanking Low order 8bits 031h Vertical blanking 49 31 B5 Vertical lines vertical blanking 7 4bit Vertical lines 11 8bit 20 High order 4 bits 3 0bit Vertical blanking 11 8bit B6 Horizontal sync offset 0Ch Horizontal offset 12 0C Low order 8 bits B7 Horizontal sync ...

Page 36: ...1 8bit 10 High order 4 bits 3 0bit Vertical image size 11 8bit CF Horizontal boundary when not available 00h pixels 00 D0 Vertical boundary when not available 00h lines 00 D1 Flag Interlace Non 1E Stereo None Sync Digital 00011110 D2 Details 6 Pixel clock 10 000 7 0bit Clock 74 25MHz 01 D3 Pixel clock 15 8bit 1D D4 No of horizontal pixels 780h Horizontal pixels 1920 80 Low order 8 bits D5 Horizont...

Page 37: ...ailable 00h 0pixels 00 E2 Vertical boundary when not available 00h 0lines 00 E3 Flag Interlace Non 9E Stereo None Sync Digital 10011110 E4 Remaining bytes 00 00 E5 00 E6 00 E7 00 E8 00 E9 00 EA 00 EB 00 EC 00 ED 00 EE 00 EF 00 F0 00 F1 00 F2 00 F3 00 F4 00 F5 00 F6 00 F7 00 F8 00 F9 00 FA 00 FB 00 FC 00 FD 00 FE Last padding byte 00 FF Extension check sum address 80h FFh 7B ...

Page 38: ...e password input screen displayed Procedure The input starts with the leftmost digit Use the numeric keys 1 thru 9 and 10 0 keys on the remote con troller The other keys are not acceptable With a numeric key input will change to The input position will move one digit to the right With all the 3 digits entered the password will be verified 3 The 3 digit password is now verified The password 0 2 7 p...

Page 39: ...t initialized The adjustment process remains intact 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 ù Ù key remote controller and set To change the settings use the cursor RIGHT LEFT key remote controller and VOL key remote controller and set To save new settings keep the cursor at Enter an...

Page 40: ...tion Remarks Selection between Variable and Fixed loop provided Variable Sound volume is fixed and made invariable The sound volume for the ON timer Wake up timer is fixed also without display of menu Besides the setting is made impossible Basically the menu is not displayed The following keys become invalid Sound volume Up Down VOL for both remote control and the unit Mute MUTE In the item VOLUME...

Page 41: ... also in the initial EZ Setup after power ON irrespective of setting Selection Default Explanation Limit in Setting Exception Remarks Selection between Respond and No respond loop provide Respond All the operations by keys except the power key of the unit can be invalidated Inspection mode and hotel menu mode can be started irrespective of setting All the keys can be used in adjustment process ins...

Page 42: ...g the setting of SOUND ONLY MODE is changed to OFF and selecting operation is made prohibited When CC has already been ON CLOSED CAPTION is displayed Selection Default Explanation About options Limit in Setting Exception Remarks Selection between Normal TV CH COMPONENT AV1 and AV2 loop provide Normal In power ON the input source to be started or channel can be set In standard mode the operation fo...

Page 43: ...ource is forced to change to that set by Input mode start and the channel switching and input switching are prohibited thereafter ON timer s Wake up timer channel items are not displayed or the operation is prohibited Basically they are not displayed The following keys are invalidated CH direct tuning button FLASHBACK input However the keys input switching and CH keys of the unit for menu operatio...

Page 44: ... IC1203 and its peripheral circuits Check the related lines IC801 itself and its peripheral circuits Are the waveforms at the signal input pins of IC801 as specified TV Composite Pin 40 S Video Pins 42 and 31 Component Pins 21 33 and 44 Check the IC801 signal input line Check IC801 and its peripheral circuits No No No Yes Yes Yes Does the IC801 test pattern appear properly ...

Page 45: ...load of IC2003 IC2011 IC802 IC8702 IC8703 and IC7004 Check T7701 IC7705 and their peripheral circuits Check the T7701 IC7705 and their peripheral circuits Disconnect F7701 Is the load short circuited Check the INV_VCC line or check or replace the fluorescent lamp No video and audio output no power No fluorescent lamp light up No No No No No No Are F7701 as specified Replace F7701 Is the pin 187 of...

Page 46: ...5 of the tuner as specified Is the input at pin 5 of IC3402 as specified Is the output at pin 7 of IC3402 as specified Check the line in question Is the output at pin 7 of IC3402 as specified Is the input at pin 1 of IC3402 as specified Check the line in question Check IC3402 and its peripheral parts Is the input at pin 3 of IC3402 as specified Is the output at pin 7 of IC3402 as specified No No Y...

Page 47: ...f SC402 Check IC403 and its peripheral parts Check IC8704 and its peripheral parts No Check the each input line No pictures come out 2 3 No PC pictures come out Check if the adjustment process menu of the microprocessor is set properly No Yes Are the inputs at pins 2 3 6 8 9 and 11 of IC8701 as specified Is the output of IC8701 as specified Is the input of IC801 as specified No Yes No Yes Check th...

Page 48: ...rts of IC3401 Do all the input modes TV Input 1 5 fail to produce sounds Perform the following checking 1 Is the monitor output set to Sound Fixed or Sound Variable 2 Is the sound volume level sufficient 3 Is the muting effect turned off 4 Are the headphones disconnected Do the following 1 Set the monitor output to Sound Fixed 2 Raise the sound volume level 3 Turn off the muting effect 4 Disconnec...

Page 49: ...Check the output of IC801 the input and output of IC1203 and their peripheral parts Check the input line and its peripheral parts Check IC8701 and its peripheral parts Check IC8701 and its peripheral parts Check the input line and its peripheral parts Are the inputs and outputs of IC8701 as specified Is the input of IC801 as specified Check the output of IC801 the input and output of IC1203 and th...

Page 50: ...D6 P0_5 AN0_5 D5 P0_4 AN0_4 D4 P0_3 AN0_3 D3 P0_2 AN0_2 D2 P0_1 AN0_1 D1 P0_0 AN0_0 D0 P10_7 AN7 KI3 P10_6 AN6 KI2 P10_5 AN5 KI1 P10_4 AN4 KI0 P10_3 AN3 P10_2 AN2 P10_1 AN1 VSS P10_0 AN0 VREF AVCC P9_7 ADTRG SIN4 P1_0 D8 P1_1 D8 P1_2 D10 P1_3 D11 P1_4 D12 P1_5 D13 INT3 P1_6 D17 INT4 P1_7 D15 INT5 P2_0 AN2_0A0 D0 P2_1 AN2_1A1 D1 D0 P2_2 AN2_2A2 D2 D1 P2_3 AN2_3A3 D3 D2 P2_4 AN2_4A4 D4 D3 P2_5 AN2_5...

Page 51: ... 1 other in 2 line I2C bus status 26 P74 TA2out I O SDA1 Serial data line 1 in 2 line I2C bus status 27 P73 CTS2_ RTS2_ TA1in I O SDA2 Serial data line 2 in 2 line I2C bus status 28 P72 CLK2 TA1out I O SCL2 Serial clock line 2 EEPROM in 2 line I2C bus status 29 P71 RxD2 SCL2 TA0in TB5in O 30 P70 TxD2 SDA2 TA0out O 31 P67 TxD1 SDA1 I O TxD Adjustment process UART device connected TxD at flash write...

Page 52: ... O OPC_LED OPC LED light up 70 P22 AN22 A2 O INV_POW Inverter power control 71 P21 AN21 A1 O AD33_CONT ADC3 3V power control 72 P20 AN20 A0 O POWout DC DC control output 73 P17 D15 INT5 I ADPPOW Adaptor ON OFF input 74 P16 D14 INT4 O HPD_CTL HDMI terminal Hot Plug control 75 P15 D13 INT3 O 76 P14 D12 O TMP1 Temperature data output 1 77 P13 D11 O 78 P12 D10 O TMP2 Temperature data output 2 79 P11 D...

Page 53: ...BIN1P SOGIN1 AVDD_ADC HSYNC1 VSYNC1 HSYNC0 VSYNC0 BIN0N BIN0P GIN0N GIN0P SOGIN0 RIN0N RIN0P GND AVDD_ADC GND GND AVDD_MPLL XIN XOUT HWRESET A0 SCL SDA VDDP MDA VDDP GND FIELD GPO DATACK VSOUT HSOUT SOGOUT DE VDDP GND VDDC VDDP GND SPDIFO AUSCK AUWS AUSD VDDC AUMUTE MCKO VDDP GND VDDP VDDC GND VDDP REXT AVDD_PLL GND RX0P RX1N RX2N RX1P RX2P RXCKN RXCKP GND RX0N GND AVDD_DVI NC AVDD_DVI AVDD_ADC AV...

Page 54: ...itt Trigger Input w 5V tolerant Vertical SYNC Input for 2nd Analog Interface 14 BIN1P Analog Input Blue Input for 2nd Analog Interface 15 BIN1N Analog Input Blue Input Reference Ground for 2nd Analog Interface 16 SOGIN1 Analog Input Sync on Green Input for 2nd Analog Interface 17 GIN1P Analog Input Green Input for 2nd Analog Interface 18 GIN1N Analog Input Green Input Reference Ground for 2nd Anal...

Page 55: ...Pin Type Function Pin AUSD Output w Pull Down Audio Serial Data Output Bit 4 12 mA Driving 96 Resistor Strength Programmable by User AUSCK Output w Pull Down Audio Serial Clock Output 4 12 mA Driving Strength 97 Resistor Programmable by User AUWS Output w Pull Down Audio Serial Word Select Output 4 12 mA Driving 98 Resistor Strength Programmable by User AUMUTE Output w Pull Down Audio Output Mute ...

Page 56: ...C2003 3 3V Reg IC2011 2 5V Reg IC8703 3 3V Reg IC802 3 3V Reg IC8702 AC_CTRL IC2001 AC DC SIG_VCC 12V V IN OUT AV1_V KEY1 KEY2 POW2 COMP_Y Pb Pr AV1_SY SC TV_V AFT AV2_L R COMP_L R PC_L R AUDIO IN PC AUDIO IN AV2 MUTE AV1_L R DC DC INV_VCC 24V POW IC2001 SP_L R L_MUTE S_STBY IC2001 DACM_R L S IN OUT SW S_IN OUT L_MUTE SIF AMP V IN OUT SW TV_SEL V_SEL V_IN OUT CVBS OPC IR Receiver LED HP JACK LED O...

Page 57: ... S_SW 9 F_SEL0 10 F_SEL1 11 SCL 12 SCL2 13 SDA 14 SDA2 15 MON_SW SC_FB 16 D_LINE3 SC_SLOWSW 17 GND 18 C N 19 GND 20 S_STBY 21 SP_MUTE 22 L_MUTE2 23 L_MUTE 24 S_IN OUT 25 V_IN OUT 26 V_SEL P5003 WA089WJ TO MAIN6 INTERFACE 1 GND 2 COMP_Y IN SC_R 3 COMP_Pb IN SC_G 4 COMP_Pr IN SC_B 5 GND 6 CVBS IN 7 SY_IN 8 SC_IN 9 SC_VIN 10 GND 11 MON_R 12 MON_L 13 PC_L 14 GND 15 DACM_R 16 DACM_L 17 GND 18 S_IF 19 G...

Page 58: ...noted CAUTION This circuit diagram is original one therefore there may be a slight difference from yours SAFETY NOTES 1 DISCONNECT THE AC PLUG FROM THE AC OUTLET BEFORE REPLACING PARTS 2 SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDEDAS POTENTIAL SHOCK HAZARDS WHEN THE CHASSIS IS OPERATING IMPORTANT SAFETY NOTICE PARTS MARKED WITH å ARE IMPORTANT FOR MAINTAINING THE SAFETY OF THE SET BE SURE TO REPLAC...

Page 59: ...61 6 5 4 3 2 1 A B C D E F G H LC 20D30U SCHEMATIC DIAGRAM Ë R C LED Unit ...

Page 60: ...63 LC 20D30U 62 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H ËMAIN Unit 1 8 ...

Page 61: ...65 LC 20D30U 64 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H ËMAIN Unit 2 8 ...

Page 62: ...67 LC 20D30U 66 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H ËMAIN Unit 3 8 ...

Page 63: ...69 LC 20D30U 68 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H ËMAIN Unit 4 8 ...

Page 64: ...71 LC 20D30U 70 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H ËMAIN Unit 5 8 ...

Page 65: ...73 LC 20D30U 72 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H ËMAIN Unit 6 8 ...

Page 66: ...75 LC 20D30U 74 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H ËMAIN Unit 7 8 ...

Page 67: ...77 LC 20D30U 76 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H ËMAIN Unit 8 8 ...

Page 68: ...79 LC 20D30U 78 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H ËSUB Unit 1 7 ...

Page 69: ...81 LC 20D30U 80 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H ËSUB Unit 2 7 ...

Page 70: ...83 LC 20D30U 82 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H ËSUB Unit 3 7 ...

Page 71: ...85 LC 20D30U 84 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H ËSUB Unit 4 7 ...

Page 72: ...87 LC 20D30U 86 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H ËSUB Unit 5 7 ...

Page 73: ...89 LC 20D30U 88 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H ËSUB Unit 6 7 ...

Page 74: ...90 6 5 4 3 2 1 A B C D E F G H LC 20D30U ËSUB Unit 7 7 ...

Page 75: ... D4005 C4006 D4007 C4003 RMC4000 R4006 D4003 R4001 R4000 D4004 D4002 Q4001 D4000 Q4002 Q4000 R4003 R4002 R4012 FB4002 D4001 R4013 FB4001 R4010 FB4003 R4011 J4000 1 R C LED Unit Component Side QPWBSD676WJZZ R C LED Unit Chip Parts Side QPWBSD676WJZZ PRINTED WIRING BOARD ASSEMBLIES ...

Page 76: ...93 92 LC 20D30U 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H MAIN Unit Side A ...

Page 77: ...3 R8732 R8734 L706 R8731 D702 R8729 C8747 Q706 R8730 C752 D706 X8701 R8728 C8741 L702 C8739 C8745 IC8701 C8729 R8727 C8726 R8726 C8723 R8720 R402 D409 D402 C8722 R8719 D701 R405 C405 C8721 C8724 R8715 R8718 IC402 R415 Q705 R416 R417 R414 C403 C8715 R8746 R8745 R8744 R8751 R8750 R8748 R8747 R8749 R8752 FB403 IC403 C8756 C8755 VA409 VA410 R411 C406 R420 SC401 R2111 D408 D401 P2003 R2110 SC402 R401 R...

Page 78: ...97 96 LC 20D30U 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H MAIN Unit Side B ...

Page 79: ...R8725 Q713 Q8703 C1346 R771 R8706 Q712 C8754 R8743 TL8704 C8753 R1315 R1316 R8736 R768 R772 R8709 IC1302 FB707 R773 R1314 R1319 TL8710 R1308 D1304 R1309 TL8712 C1345 R1306 L1303 TL8711 R1307 D1305 C1344 C1348 R1317 TL5253 TL5214 TL5227 C1343 R1305 IC1303 TL1301 TL5254 TL5228 R1318 D1301 D1303 D1302 R1310 C1336 C1335 C1332 C1334 C1333 TL5229 TL5255 Q1301 TL5256 R1312 TL5231 TL5218 TL5257 C1329 TL52...

Page 80: ...101 100 LC 20D30U 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H SUB Unit Wiring Side QPWBFD674WJN1 ...

Page 81: ...C3423 R3407 R3434 R3402 R3547 R3432 TL3403 TL3412 D3413 D3401 R3410 TL3494 D3402 TL3409 TL3415 D3414 C3499 R3426 R3422 D3410 R3408 R3411 R3539 D3409 C3406 TL3408 TL3419 TL3420 TL3407 R3540 C3501 C3407 D3403 D3404 R3442 R3425 R3428 TL3414 R3443 R3492 R3452 R3435 C3414 Q3407 C3428 R3431 Q3408 Q3409 R3447 R3453 R3449 R3440 D3408 R3459 R3451 R3450 Q3410 R3415 R3465 R3448 R3467 Q3416 R3466 D3416 D3407 ...

Page 82: ...ette de circuit imprimé sont rangés dans l ordre alphabétique Ref No Part No Description Code Ref No Part No Description Code PRINTED WIRING BOARD ASSEMBLYS NOT REPLACEMENT ITEM DUNTKD672FM03 MAIN Unit DUNTKD674FM03 SUB Unit DUNTKD676FM03 R C LED Unit CPWBX3335TPZZ J LCD Control Unit BR RDENC2228TPZZ J Inverter Unit BK DUNTKD672FM03 MAIN Unit CAPACITORS C401 RC KZA176WJZZY J 10 10V Ceramic AC C402...

Page 83: ...11 VCKYCY1HB103KY J 0 01 50V Ceramic AA C1214 VCKYCY1EF104ZY J 0 1 25V Ceramic AA C1215 VCKYCY1HB103KY J 0 01 50V Ceramic AA C1216 VCKYCY1EF104ZY J 0 1 25V Ceramic AA C1217 VCKYCY1EF104ZY J 0 1 25V Ceramic AA C1218 VCKYCY1EF104ZY J 0 1 25V Ceramic AA C1219 VCKYCY1HB103KY J 0 01 50V Ceramic AA C1301 VCEASX0JN107MY J 100 6 3V Electrolytic AC C1302 VCCCCY1HH5R0CY J 50p 50V Ceramic AA C1303 VCCCCY1HH5...

Page 84: ...0051TAZZY J Ferrite Bead AC FB801 RBLN 0083GEZZY J Ferrite Bead AB FB802 RBLN 0006TAZZY J Ferrite Bead AB FB803 RBLN 0006TAZZY J Ferrite Bead AB FB806 RBLN 0006TAZZY J Ferrite Bead AB FB1202 RBLN A010WJZZY J Ferrite Bead AB FB1203 RBLN 0050TAZZY J Ferrite Bead AA FB1204 RBLN 0050TAZZY J Ferrite Bead AA FB1301 RBLN 0035TAZZY J Ferrite Bead AB FB2001 RBLN 0050TAZZY J Ferrite Bead AA FB8703 RBLN 0050...

Page 85: ...770 VRS CY1JF103FY J 10k 1 16W Metal Oxide AA R771 VRS CY1JF124FY J 120k 1 16W Metal Oxide AA R772 VRS CY1JF223FY J 22k 1 16W Metal Oxide AA R774 VRS CY1JF103JY J 10k 1 16W Metal Oxide AA R775 VRS CY1JF103JY J 10k 1 16W Metal Oxide AA R801 VRS CY1JF000JY J 0 1 16W Metal Oxide AA R803 VRS TQ2BD000JY J 0 1 8W Metal Oxide AA R804 VRS CY1JF473JY J 47k 1 16W Metal Oxide AA R806 VRS CY1JF102JY J 1k 1 16...

Page 86: ...xide AA R2082 VRS CJ1JF101JY J 100 1 16W Metal Oxide AA R2084 VRS CY1JF391JY J 390 1 16W Metal Oxide AA R2085 VRS CY1JF101JY J 100 1 16W Metal Oxide AA R2088 VRS CY1JF101JY J 100 1 16W Metal Oxide AA R2089 VRS CY1JF103JY J 10k 1 16W Metal Oxide AA R2090 VRS CY1JF101JY J 100 1 16W Metal Oxide AA R2091 VRS CJ1JF470JY J 47 1 16W Metal Oxide AA R2092 VRS CY1JF472JY J 4 7k 1 16W Metal Oxide AA R2109 VR...

Page 87: ...C7714 VCQYTA1HM104J J 0 1 50V Mylar AB C7715 VCEA4A2CN106M J 10 160V Electrolytic AC C7716 VCESKA1HM476M J 47 50V Electrolytic AD C7717 VCQYTA1HM332J J 3300p 50V Mylar AA C7733 VCKYCY1HB332KY J 3300p 50V Ceramic AA C7734 RC EZA503WJZZ J 1800 25V Electrolytic AL C7735 RC EZA468WJZZ J 2200 16V Electrolytic AE C7736 RC EZA503WJZZ J 1800 25V Electrolytic AL C7737 RC EZA162WJZZ J 1000 16V Electrolytic ...

Page 88: ...1 16W Metal Oxide AA R3413 VRS CY1JF104JY J 100k 1 16W Metal Oxide AA R3414 VRS CY1JF000JY J 0 1 16W Metal Oxide AA R3415 VRS CY1JF101JY J 100 1 16W Metal Oxide AA R3416 VRS CY1JF101JY J 100 1 16W Metal Oxide AA R3418 VRS CY1JF471JY J 470 1 16W Metal Oxide AA R3419 VRS CY1JF471JY J 470 1 16W Metal Oxide AA R3420 VRS TQ2BD750JY J 75 1 8W Metal Oxide AA R3422 VRS TQ2BD750JY J 75 1 8W Metal Oxide AA ...

Page 89: ...ide AA R7758 VRD RA2BE000JY J 0 1 8W Carbon AA R7759 VRS TW2HF102JY J 1k 1 2W Metal Oxide AA R7761 VRD RA2BE2R7JY J 2 7 1 8W Carbon AA R7767 VRD RA2EE153JY J 15k 1 4W Carbon AA MISCELLANEOUS PARTS RDA7701 PRDARA310WJFW J Heat Sink AL RDA7702 PRDARA311WJFW J Heat Sink AL RJ11 VRS TQ2BD000JY J 0 1 8W Metal Oxide AA RJ12 VRS TQ2BD000JY J 0 1 8W Metal Oxide AA RJ13 VRS TQ2BD000JY J 0 1 8W Metal Oxide ...

Page 90: ...ire Holder x1 AD 6 GCOVAB082WJKF X Stand Cover AN 7 GCOVAB491WJKA X Terminal Cover AU 8 GCOVAB542WJKA X Bass Cone Cover AU 9 HiNDPB591WJSA X Model Label AH 10 Not Available Serial No Label 11 JHNDPA017WJKA J Stand Handle AL 12 LANGFA289WJFW X PWB Support Angle x1 AB 13 LANGFA290WJFW X Panel Support Angle x2 AE 14 LANGTA280WJFW X VESA Angle AT 15 LANGTA281WJFW X PWB Fixing Angle AD 16 LCHSMA285WJKA...

Page 91: ... 2 4 1 4 3 4 5 4 7 4 8 4 7 4 9 4 10 4 14 4 10 4 11 4 12 4 13 4 6 4 4 1 5 23 1 24 26 27 23 25 29 31 5 13 31 13 32 38 38 5 4 2 3 2 5 2 1 2 2 2 4 3 6 3 2 3 6 3 1 3 3 3 3 3 5 3 4 5 3 5 4 5 5 5 6 5 5 5 2 5 5 5 7 5 1 28 10 31 31 11 17 33 34 6 3 38 14 35 35 35 36 30 20 20 19 18 16 37 35 35 15 12 22 21 2 8 9 38 7 39 R C LED PWB Inverter PWB LCD Control PWB 24 Sub PWB Main PWB ...

Page 92: ...AX X7 Not Available AAA size Battery x2 Supplied Accessories Remote control unit AC cord RGB cable X4 X3 X2 X7 X6 X1 Operation manual Cable clamp AAA size batteries x2 PACKING PARTS NOT REPLACEMENT ITEM S1 SPAKCC420WJZZ Packing Case S2 SPAKPA609WJZZ Wrapping Paper S3 SPAKXA938WJZZ Buffer Material S4 SSAKA0101GJZZ Polyethylene Bag S5 TLABKA009WJZZ No Label 30 QEARZA097WJZZ X Grounding Part AB 31 XB...

Page 93: ...115 LC 20D30U PACKING OF THE SET S4 S2 X7 X4 X2 X3 S3 X1 X5 X6 S5 S3 S1 R L ...

Page 94: ...2193 Japan TQ1991 S Mar 2006 Printed in Japan MI KG Design and Production Information Design NSEC Production SEMEX 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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