Sharp LC-90LE740X Aquos Service Manual Download Page 67

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PARTS GUIDE

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.

This document has been published to be used
for after sales service only.
The contents are subject to change without notice.

LC-90LE740X

PartsGuide

[1] PRINTED WIRING BOARD

ASSEMBLIES

[2] LCD PANEL MODULE UNIT

[3] CABINET AND MECHANICAL

PARTS

[4] SUPPLIED ACCESSORIES/

PACKING PARTS
(NOT REPLACEMENT ITEM)

[5] SERVICE JIG

(USE FOR SERVICING)

CONTENTS

MODEL

LCD COLOR TELEVISION

LC-90LE740X

No. SY2A4LC90LE74

Summary of Contents for LC-90LE740X Aquos

Page 1: ... 2 The location putting on the heat measure sheet 4 6 3 Precautions for assembly 4 7 CHAPTER 5 ADJUSTMENT 1 ADJUSTMENT PROCEDURE 5 1 2 PUBLIC MODE SETTING PROCEDURE 5 14 3 USB Clone Specifications 5 21 CHAPTER 6 TROUBLESHOOTING TABLE 1 Failure diagnosis by LED in front of cabinet 6 1 2 LED flashing specification at the time of an error Center icon LED used 6 1 3 TROUBLESHOOTING TABLE 6 5 CHAPTER 7...

Page 2: ...he AC voltage drop across the resistor All checks must be repeated with the AC cord plug connection reversed If necessary a nonpolarized adaptor plug must be used only for the purpose of completing these checks Any reading of 0 75 Vrms this corresponds to 0 5 mA rms AC or more is excessive and indicates a potential shock hazard which must be corrected before returning the monitor to the owner SAFE...

Page 3: ... 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 more tin and the end of the solderin...

Page 4: ...75FM18 LCD CONTROL Unit N DUNTKG014FMF7 EMBLEM Unit N DUNTKG015FMF7 R C LED Unit N DUNTKG017FMF7 3D IR Unit N RUNTKB096WJQZ POWER DRIVE UNIT No PARTS CODE DESCRIPTION N B3KUV740X 90 LCD PANEL MODULE Unit R1LK900D3GW10V No PARTS CODE DESCRIPTION Q ty IC2004 RH iXD241WJNQQ IC Monitor Microprocessor 1 No PARTS CODE DESCRIPTION Q ty N QCNW C222WJQZ Connecting Cord L 1000mm 80pins LCD Control to LCD Pa...

Page 5: ...LC 90LE740X 1 1 LC 90LE740X Service Manual CHAPTER 1 SPECIFICATIONS 1 SPECIFICATIONS ...

Page 6: ...LC 90LE740X 2 1 LC 90LE740X Service Manual CHAPTER 2 OPERATION MANUAL 1 OPERATION MANUAL ...

Page 7: ...LC 90LE740X 2 2 ...

Page 8: ...LC 90LE740X 2 3 ...

Page 9: ...LC 90LE740X 2 4 ...

Page 10: ...LC 90LE740X 3 1 LC 90LE740X Service Manual CHAPTER 3 DIMENSIONS 1 DIMENSIONS ...

Page 11: ...rews 1 and detach the Stand Unit 2 2 Remove the 3 lock screws 3 20 lock screws 4 10 lock screws 5 and detach the Rear Cabinet L Ass y 6 Rear Cabinet R Ass y 7 3 Remove the 5 lock screws 8 8 lock screws 9 2 lock screws 10 2 angles 11 and detach the Rear Cabinet C Ass y 12 4 3 4 5 1 2 Stand Unit 6 Rear Cabinet L Ass y 7 Rear Cabinet R Ass y 12 10 11 Rear Cabinet C Ass y 9 8 ...

Page 12: ...nnect the RC wire 4 Detach the KEY Unit Ass y 4 5 Disconnect the KM wire 6 Remove the 2 lock screws 5 and detach the Key Button 6 from Key Cover 8 7 Detach the KEY Unit 7 from Key Button 6 8 Disconnect the SB wire 9 Detach the Speaker Woofer 9 7 5 4 8 6 Key Button KEY Unit KEY Unit Ass y Key Cover SP KM SP RC MAIN Unit 3 1 Speaker R 2 1 Speaker L 9 Speaker Woofer SB SB ...

Page 13: ...the following connectors from the LCD Control Unit PL LV 4 Remove the 16 lock screws 1 and detach the 16 Module Fix Angles 2 5 Remove the 7 Hooks and detach the 90 LCD Panel Module Unit Ass y 3 6 Detach the 2 Bottom cover 4 1 2 2 1 1 2 Module Fix Angle Module Fix Angle Module Fix Angle PD LV MAIN Unit LCD Control Unit POWER DRIVE Unit Hook Hook L1 L2 PD PD PL LV 3 90 LCD Panel Module Unit Ass y MA...

Page 14: ...e the 3 lock screws 3 and detach the MAIN Unit 4 and Terminal Angle Bottom 5 3 Remove the 6 lock screws 6 and detach the POWER DRIVE Unit 7 4 Remove the 4 lock screws 8 and detach the 2 Speaker Holders 9 90 LCD Panel Module Unit 7 6 POWER DRIVE Unit 4 1 Terminal Angle Bottom 3 Shield MAIN 2 MAIN Unit 5 8 9 Speaker Holder 8 9 Speaker Holder ...

Page 15: ...BLEM Unit 3D IR Unit 1 Detach the R C LED Unit 1 2 Disconnect the RA wire 3 Detach the EMBLEM Unit 2 4 Disconnect the CI wire 5 Detach 3D IR Unit 3 6 Disconnect the IR wire Decoration Frame Ass y 2 EMBLEM Unit 1 R C LED Unit RA CI 3 3D IR Unit IR ...

Page 16: ...LC 90LE740X 4 6 2 The location putting on the heat measure sheet 1 MAIN PWB Unit 2 LCD Control Unit PSPAZC871WJKZ PSPAZC854WJKZ ...

Page 17: ...check that the EMI prevention parts are not peeled and twisted from the access holes The EMI prevention parts conductive nonwoven fabric gaskets must be seen from the access holes Countermeasure Attach the conductive nonwoven fabric gaskets on the shielded case on the main PWB State where the main PWB and shielded case are assembled 687 Access hole Access hole ...

Page 18: ...wing is a drawing mounting the main PWB Ass y on the backlight chassis The parts indicated by are the access holes for confirmation Main PWB Ass y State where the shielded case and RF terminal angle are mounted on the main PWB ...

Page 19: ...overy 2 1 Software version upgrade The model employs the following software Main software please use a software version after LEON_LE740X_xxx USB Monitor microprocessor software please use a software version after LEONSUBxxx SMB The main software monitor microprocessor software can be upgraded by using a general purpose USB Memory The followings are the procedures for upgrading explained separatel...

Page 20: ...ormation appears after the upgrade is complete 8 Unplug the AC cord and remove the USB Memory for version upgrade 9 Now the software version upgrade is complete NOTE When you are done with the software version upgrade start the set go to the top page of the adjustment process screen and check the main software version information MAIN SUB MICOM PANEL EEPROM 3D IR MICOM MAIN Version SUB MICOM Versi...

Page 21: ...upgrade 6 If the upgrade fails power led will stop blinking Also the upgrade failure screen will be shown if upgrade screen was shown at 5 NOTE In the event of a transient failure upgrade will be automatically retried up to three times If the process repeatedly fails hardware may be the cause 7 The upgrade success screen will be shown if upgrade screen was shown at 5 8 Unplug the AC cord and remov...

Page 22: ...ustment process mode 1 Key operation Input mode is switched automatically when relevant adjustment is started so far as the necessary input signal is available 2 Description of display Remote controller key Main unit key Function CH CH Moving an item line by one UP DOWN VOL VOL Changing a selected item setting 1 1 Cursor UP DOWN Turing a page PREVIOUS NEXT Cursor LEFT RIGHT Changing a selected lin...

Page 23: ...ter ADJ PARAM SET 10 VIC XPOS 0 X coordinate setting for VIC READ 11 VIC YPOS 0 Y coordinate setting for VIC READ 12 VIC SIGNAL TYPE MAIN Signal type setting for VIC READ 13 VIC READ OFF Picture level acquisition function Level appears in green on the upper right 3 20 1 TUNER ADJ Enter TUNER auto adjustment execution 2 PAL TUNER ADJ Enter PAL TUNER auto adjustment execution 3 TUNER ADJ CA 8CH Ente...

Page 24: ...ANALOG video level adjustment 2 R OFFSET 64 R CUTOFF adjustment value 3 G OFFSET 64 G CUTOFF adjustment value 4 B OFFSET 64 B CUTOFF adjustment value 5 R GAIN 44 R DRIVE adjustment value 6 G GAIN 44 G DRIVE adjustment value 7 B GAIN 44 B DRIVE adjustment value 8 RGB A_CLAMP 0 9 20 1 VCOM ADJ 64 Common bias adjustment 10 20 1 DDR2 CHECK Enter Execute DDR check 2 BA 1 0 0x00 3 ADDR 13 0 0x0000 4 DQ ...

Page 25: ...a 0x 0 19 20 1 ERROR STANDBY CAUSE 1 NO RECORD ERROR STANDBY CAUSE 2 ERROR STANDBY CAUSE 2 NO RECORD 3 ERROR STANDBY CAUSE 3 NO RECORD 4 ERROR STANDBY CAUSE 4 NO RECORD 5 ERROR STANDBY CAUSE 5 NO RECORD 6 STANDBY CAUSE RESET OFF Reset stand by cause 20 20 1 EEP SAVE OFF Writing setting values to EEPROM 2 EEP RECOVER OFF Reading setting values from EEPROM 3 MONITOR ERROR CAUSE RESET OFF Reset of mo...

Page 26: ... MONITOR ERROR CAUSE Display Code Indication Description 2 NO_OPERT in the cause of no operation off 3 NO_SIGNA in the cause of no signal off 6 SLEEP_TM in the cause of SLEEP timer 8 OFF_232C in the cause of command by RS 232C Display Code Indication Description 1A E_MONITR in the cause of monitor trouble detected 1C E_CVICBT in the cause of driver boot error 22 E_TCNERR in the cause of software a...

Page 27: ...ith OK dis played 2 Model setting 1 Use the cursor keys and CH keys of R C to select the item MODEL NAME on the page 20 20 2 Verify that the Model name is displayed 3 If the Model name doesn t match select the values of the Model name with the VOL keys 4 After selection in Step 3 press the OK key and it is completed with OK dis played Adjustment item Adjustment conditions Adjustment procedure 1 Op...

Page 28: ...B PR level 0 7Vp p 0 02Vp p Composite signal NTSC 0 714Vp p 0 02Vp p Pedestal to white level Adjustment point Adjustment conditions Adjustment procedure 1 Setting Signal PAL Full field colour bar composite signal Terminal INPUT6 video input Feed the PAL full field colour bar signal 75 colour saturation to INPUT6 video input VIDEO input signal 2 Auto adjustment performance Adjustment process PAL AD...

Page 29: ...field colour Bar Signal Terminal INPUT6 video input Feed the SECAM full field colour bar signal 75 colour saturation to INPUT6 video input VIDEO input signal 2 Auto adjustment performance Adjustment process SECAM ADJ page 4 20 Bring the cursor on SECAM ADJ and press ENTER SECAM ADJ OK appears when finished Adjustment point Adjustment conditions Adjustment procedure 1 Setting Signal COMP15K 50Hz 57...

Page 30: ...04 point LO Adjustment spec 0 001 Inspection spec 0 002 point HI 6 After completing adjustments set EEP SAVE 20 20 to ON in the process menu to save the white balance adjustment value Adjustment point Adjustment conditions Adjustment procedure 1 Setting Signal COMP33K 50Hz 1080i 50Hz 100 Full field colour bar Signal Terminal INPUT5 COMPONENT IN Feed the COMPONENT 33K 100 full field colour bar sign...

Page 31: ...DMI EDID WRITE and press the ENT key The writing is complete when OK is displayed If not written HDMI does not function CAUTION Perform the data writing after setting the model discrimi nation The data based on the model discrimination information is recorded in EEPROM Adjustment point Adjustment conditions Adjustment procedure 1 Factory setting Complete the setting by pulling out the AC cord Poin...

Page 32: ...ss Word by inputting three digits If the Pass Word 0 2 7 it shifts to the PUBLIC Mode setting screen In another case the screen is erased and it operates in the ordinary mode 2 In the adjustment process mode turn on PUBLIC MODE Also press the CH or CH and VOL keys on the set at once and turn on the power 2 How to exit Public Mode There are the following ways to quit the public mode setup screen Tu...

Page 33: ... 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 EXECUTE and use ENTER key remote controller and set 27 1 219 4 10 8 4 5 76 190 1 014 7 81 7 81 7 8 4 81 7 8 4 76610 4 5210 2 0 76610 4 5210 07 76610 4 5210 8 215 6 10 8 4 10 5 4 0 52 5 0276 1 56 46 014 0276 1 8 4 17 52 4 10 4 2 6 6 417 1 21910 5 27 1 1 ...

Page 34: ...ork and not selecting OFF TIMER Sleep No operation OFF No signal OFF including the power management These items does not exist according to the model Option NORMAL or QUICK Default NORMAL Function This function decides whether scanning digital tuner is enabled or disabled when the power is standby NORMAL QUICK Scanning digital tuner is enabled when the power is standby Scanning digital tuner is di...

Page 35: ... s speaker only Exception In the adjustment process the volume can be set to any level regardless of this setting Remarks When VOLUME FIXED is set to VARIABLE the setting cannot be changed Option RESPOND NORESPOND or LIMITED loop enabled Default RESPOND Function The operation of the remote control s keys is set RESPOND NO RESPOND LIMITED The remote control s keys in the normal state are enabled Th...

Page 36: ...POSITION key OPC DOLBY key etc only the actual state is displayed no setting is changed These keys does not exist according to the model The settings for the Public mode are retained after the personal data is initialized each item for the AV position and image sound adjustment are not initialized Option YES NO or LIMITED loop enabled LIMITED is looped only in case of need destination Default YES ...

Page 37: ...s FLASHBACK INPUT SELECT TV VIDEO AUTO PRESET MANUAL MEMORY i LINK DIRECTINPUTSELECT ATV DTV EPG RADIO etc Remarks If INPUT MODE START is Normal this function cannot be set Set to VARIABLE automatically When setting to FIXED The item related to the channel setting and input selection in Menu are not displayed ON TIMER Watching reservation is not active These items does not exist according to the m...

Page 38: ...PW ENABLE DISABLE POWR0001 is always enabled Start up may be impossible at POWR0001 If the 232C command reception module is set to OFF the command is invalid Option OFF or ON loop enabled Default OFF Function The item decide whether Public mode setting menu are enabled or disabled The same item as PUBLIC MODE in the adjustment process menu OFF ON Public mode is not active Public mode is active Rem...

Page 39: ...de Copy mode TV USB Start TV USB USB TV Wait Start Processing failed or multiple insertion Processing successful FIG 3 FIG 4 USB TV Start Copy mode Copy mode FIG 5 Copy mode TV USB USB TV Done Copy mode TV USB USB TV Failed Start Copy mode TV USB USB TV Start St USB TV USB TV Refer to USB TV writing to TV USB TV Start Do not focus on button before recognition of USB device and use is possible Wait...

Page 40: ...memory connection is one connection carry out clone operations regardless of what USB port it is connected to Up until recognition of the USB device and usage enable do not focus on the button shown in FIG 1 of the 1 Screen Specifications copy mode TV USB and 2 Screen Specifications copy mode USB TV maximum 45 seconds The following must agree during sucking from TV TV USB and writing to TV USB TV ...

Page 41: ...ing from an error if the same error cannot be generated again refer to MONITOR ERR CAUSE on the adjustment process mode 2 LED flashing method Error flashing No Yes No Yes No Yes Is the Center Icon flashing START Is the Center Icon lighting When AC plug on Is the Backlight lighting Check 2 LED flashing specification at the time of an error Center icon LED used Check Power Unit and AC cable Check LE...

Page 42: ... etc Flashes twice Flash once Power supply error 2 2 AC_DET error Flash twice Power supply error 2 2 UR 13V error Flash 3 times Power supply error 2 2 D 3 3V error Flash 5 times Panel power supply error Main PWB failure Communication failure etc Flashes 3 times Flashes once Initial communication error Flashes twice Start up confirmation communication error Flashes 3 times Regular communication err...

Page 43: ...lied PANEL_POW Panel 12V failure Flashes fast 5 times H On L Off DET_PNL12V failure L Panel power is not applied Error type Center icon LED operation Basically debug print logs are analyzed or commu nication logs are analyzed by a bus monitor Initial communica tion reception failure Flashes fast once H On L Off Initial communication from the main CPU is not received Request for the monitor model N...

Page 44: ...once H On L Off If the panel temperature is 60 C or more for 15 seconds or more in a row CAUTION appears on the OSD flashes in red in the lower right screen If the panel temperature is 60 C or more for 25 seconds or more in a row error standby is activated Main failure Flashes fast 3 times H On L Off Main microprocessor detection error CPU temperature error etc The details are displayed on page 1 ...

Page 45: ...ars in the panel module When the parts in the panel cannot be replaced Replace panel module If it is not an error of power supply LED driver It is start up in the lamp error disregard mode Do you start NO When power supply unit is replaced does it start normally YES NO Replace power supply unit When main unit is replaced does it start normally YES NO Replace main unit When LCD control unit is repl...

Page 46: ...hen C S FPC is replaced does screen display normally NO YES Replace C S FPC When C PWB is replaced does screen display normally NO YES Replace C PWB Adjust VCOM ADJ after replace C PWB Replace Panel HIRAKI Adjust VCOM ADJ after replace Panel HIRAKI ...

Page 47: ... adjustment process mode and display LCD TEST PATTERN 2 of 13 page Please press volume keys and a test pattern is displayed Is it all usually displayed YES It isn t the fault of a C PWB Please check operation with reference to other items NO Is only the half of the right screen or the left screen displayed normally YES It is checked whether FFC to Panel is connected correctly Replace another C PWB...

Page 48: ...signal at input pins of IC3301 CPU NO Check the TMDS line between SC1501 and IC2601 and its peripheral circuits IC2601 TMDS input pins pin 26 27 CLK pin 28 29 D0 pin 30 31 D1 pin 31 33 D2 YES Check the TMDS line between IC2601 and IC3301 and its peripheral circuits IC3301 TMDS input pins pin AH35 AH34 CLK pin AG35 AG34 D0 pin AG37 AG36 D1 pin AF35 AF34 D2 Check the I2C line between IC2601 and IC33...

Page 49: ... signals at input pin of IC3301 CPU NO Check the TMDS line between SC1502 and IC2601 and its peripheral circuits IC2601 TMDS input pins pin 17 18 CLK pin 19 20 D0 pin 21 22 D1 pin 23 24 D2 YES Check the TMDS line between IC2601 and IC3301 and its peripheral circuits IC3301 TMDS input pins pin AH35 AH34 CLK pin AG35 AG34 D0 pin AG37 AG36 D1 pin AF35 AF34 D2 Check the I2C line between IC2601 and IC3...

Page 50: ... signal at input pins of IC3301 CPU NO Check the TMDS line between SC1503 and IC2601 and its peripheral circuits IC2601 TMDS input pins pin 8 9 CLK pin 10 11 D0 pin 12 13 D1 pin 14 15 D2 YES Check the TMDS line between IC2601 and IC3301 and its peripheral circuits IC3301 TMDS input pins pin AH35 AH34 CLK pin AG35 AG34 D0 pin AG37 AG36 D1 pin AF35 AF34 D2 Check the I2C line between IC2601 and IC330...

Page 51: ...TMDS signal at input pins of IC3301 CPU NO Check the TMDS line between SC1504 and IC2601 and its peripheral circuits IC2601 TMDS input pins pin 99 100 CLK pin 1 2 D0 pin 3 4 D1 pin 5 6 D2 YES Check the TMDS line between IC2601 and IC3301 and its peripheral circuits IC3301 TMDS input pins pin AH35 AH34 CLK pin AG35 AG34 D0 pin AG37 AG36 D1 pin AF35 AF34 D2 Check the I2C line between IC2601 and IC33...

Page 52: ... Y AR26 Pb and AP26 Pr of IC3301 CPU YES NO Check the line between the input terminals of J513 and IC3301 J513 pin 1 Y pin 2 Pb pin 3 Pr IC3301 pin AU26 AP25 pin AR26 pin AP26 Is the T CON PWB connected VBO_HTPDN pin 40 of SC3801 become Low if there is no problem in the connection NO Check the T CON PWB and harness Check IC3301 and SC3801 and their periph eral circuits in Main PWB YES Are the V By...

Page 53: ...t pin AT30 of IC3301 CPU Is there the COMPOSITE signal input at pin AR31 of IC3301 CPU YES NO YES NO Check the line between pin 2 of J509 and pin AT30 of IC3301 CPU J509 pin 2 IC3301 pin AT30 Check the line between pin 2 of J514 and pin AR31 of 3301 CPU J514 pin 2 IC3301 pin AR31 Is the T CON PWB connected VBO_LOCKN pin 40 of SC3801 become Low if there is no problem in the connection NO Check the ...

Page 54: ...25 R of IC3301 CPU Are there the VSYNC HSYNC signal inputs at pins AM25 and AN25 of IC3301 YES NO Check the line between SC504 and IC3301 and their peripheral circuits Is the T CON PWB connected VBO_LOCKN pin 40 of SC3801 become Low if there is no problem in the connection NO Check the T CON PWB and harness Check IC3301 and SC3801 and their peripheral circuits in Main PWB YES Are the V By One HS s...

Page 55: ... and their peripheral circuits Check the Tuner I2C lines TU1104 pin 5 TU_SCLK pin 4 TU_SDATA IC3301 pin V35 pin V34 Check the IF AGC line between pin U35 of IC3301 and pin 12 of TU1104 Check the Tuner I2C lines TU1104 pin 5 TU_SCLK pin 4 TU_SDATA IC3301 pin V35 pin V34 Is the T CON PWB connected VBO_LOCKN 40pin of SC3801 become Low if there is no problem in the connec tion NO Check the T CON PWB a...

Page 56: ...peripheral circuits IC1508 IC1509 etc YES Are there the TMDS signal at input pin 1 2 D0 of IC2601 HDMI SW NO Check the TMDS line between SC1504 and IC2601 and its peripheral circuits IC1504 etc YES Are there the TMDS signal at input pins of IC3301 CPU NO Check the TMDS line between IC2601 and IC3301 and its peripheral circuits IC3301 TMDS input pins pin AH35 AH34 CLK pin AG35 AG34 D0 pin AG37 AG36...

Page 57: ...RCLK SP_DATA of IC1703 Audio DSP YES NO Check the line between IC3301 and IC1703 and their paripheral circuits About the L R Speakers Does the digital audio signal come from pins 30 21 26 27 of IC1703 Audio DSP to pin 5 7 8 6 of IC1902 AMP for L R About the Subwoofer speaker Does the digital audio signal come from pins 30 21 26 28 of IC1703 Audio DSP to pin 5 7 8 6 of IC1901 AMP for SW YES NO Chec...

Page 58: ...of IC1703 Audio DSP YES NO Check the line between IC3301 and IC1703 and their peripheral circuits About the L R Speakers Does the digital audio signal come from pins 30 21 26 27 of IC1703 Audio DSP to pin 5 7 8 6 of IC1902 AMP for L R About the Subwoofer speaker Does the digital audio signal come from pins 30 21 26 28 of IC1703 Audio DSP to pin 5 7 8 6 of IC1901 AMP for SW YES NO Check IC1703 and ...

Page 59: ...peakers Does the digital audio signal come from pins 30 21 26 27 of IC1703 Audio DSP to pin 5 7 8 6 of IC1902 AMP for L R About the Subwoofer speaker Does the digital audio signal come from pins 30 21 26 28 of IC1703 Audio DSP to pin 5 7 8 6 of IC1901 AMP for SW YES NO Check IC1703 and its paripheral circuits X1701 etc About the L R Speakers Is the audio output from IC1902 as specified About the S...

Page 60: ...audio signal come from pins AR11 AP11 AN9 CPU_AOBCK AOLRCK AOSDATA0 of IC3301 CPU to pins 6 7 5 SP_BCLK SP_LRCLK SP_DATA of IC1703 Audio DSP YES NO Check the line between IC3301 and IC1703 and their peripheral circuits About the L R Speakers Does the digital audio signal come from pins 30 21 26 27 of IC1703 Audio DSP to pin 5 7 8 6 of IC1902 AMP for L R About the Subwoofer speaker Does the digital...

Page 61: ... and its peripheral circuits Is there the SPDIF signal OPT_OUT input at pin 2 of IC503 SPDIF BUFFER SPDIF MUTE YES NO Check the line between IC3301 and IC503 Is there the MUTE signal input at pin 1 of IC503 usual High Mute Low YES NO Check the AUDIO_MUTE and their peripheral circuits Q505 etc Is there the SPDIF signal input at pin 1 of D527 OPTICAL OUTPUT YES NO Check the speakers and the optical ...

Page 62: ...d J504 and their peripheral circuits Check the LINE_MUTE line and its peripheral circuits Q506 Q510 etc Check the connector J504 and their peripheral circuits and speakers and the Cable No connect network Does the signal come to 1pin of LAN JACK J9401 see fig 1 fig 2 NO Check the interface device and peripheral circuits power LED of hub LINK LED of hub YES Does the signal come to AT18 pin of IC330...

Page 63: ...r a V by One transmit ter and an NTSC PAL SECAM TV decoder with a 3D comb filter NTSC PAL It supports Full HD MPEG1 2 4 H 264 DiviX VC1 RM AVS VP6 VP8 video decoder standards and JPEG Audio support includes a BTSC and a Dolby AC3 MPEG 2 Layer 1 2 audio decoder Two SPDIF output and a pair of analog outputs L R are provided The LSI incorporates a complete ARM Cortex A9 dual core based microprocessor...

Page 64: ...LC 90LE740X 7 2 1 12 IC1703 VHiYSS952QZ 1Y Audio DSP YSS952QZ has digital audio adjustment function for example PEQ bass treble balance bass enhancer etc and adjusts TVs audio quality ...

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Page 66: ...A 7 1A 76 8 8 0A2 4A456 0A 2A2416 6 52A 76 7 1A 76 0276 4 0276 4 DKV 7 8 8 5 A 0A 4 7 1A 76 8 5A1WV 7 8 2A 122 WVG EKTEWKV 0A2 4A456 0A 2A2416 6 85 0 4A27 5 A 8 0A670A456 4 5 6 1 5RNKVGT 2 8 7 1A 76 8 8 8 WHHGT 6 7 8 A A 0 A A176 6JGTOKUVGT 4 9 57 7 2A 44 1 1 A 6 1 6 4 1 1 1 VCN 56 1 7 46 2 QPPGEVQT HQT 2TQITCO 7RFCVG CPF OWNCVG 7 8 7 1 A456 4Z 6Z 4GUGV 2 A4 3 0A54 5 6 2A4 6 M 241 A5 5 241 MDKV 7 ...

Page 67: ...This document has been published to be used for after sales service only The contents are subject to change without notice LC 90LE740X PartsGuide 1 PRINTED WIRING BOARD ASSEMBLIES 2 LCD PANEL MODULE UNIT 3 CABINET AND MECHANICAL PARTS 4 SUPPLIED ACCESSORIES PACKING PARTS NOT REPLACEMENT ITEM 5 SERVICE JIG USE FOR SERVICING CONTENTS MODEL LCD COLOR TELEVISION LC 90LE740X No SY2A4LC90LE74 ...

Page 68: ...953FMJ6 CB N V MAIN Unit N DUNTKF800FMF8 AY V KEY Unit N DUNTKG017FMF7 BB V 3D IR Unit N DUNTKG015FMF7 AV N V R C LED Unit N DUNTKG014FMF7 AV N V EMBLEM Unit N RUNTKB096WJQZ CD N V POWER DRIVE Unit N DUNTKF975FM18 BL N X LCD CONTROL Unit 2 LCD PANEL MODULE UNIT N B3KUV740X N V 90 LCD PANEL MODULE Unit R1LK900D3GW10V ...

Page 69: ... 3 25 1 12 12 3 12 2 12 1 28 19 PD G MAIN Unit SP LW RC SB 1 6 1 14 1 14 1 8 1 8 1 1 1 1 1 1 1 1 1 4 1 2 1 5 G 1 14 1 8 1 14 1 9 1 14 1 14 1 14 1 14 1 49 53 52 1 7 54 51 3D IR Unit 1 11 KM RA CI RC CI EMBLEM Unit RA R C LED Unit 1 13 1 3 21 21 36 32 35 41 41 18 18 SP J 10 17 38 20 44 43 4 6 4 1 4 5 4 5 4 5 4 3 4 4 4 2 3 4 4 3 3 3 3 3 3 3 3 3 1 3 2 3 2 2 2 2 2 2 2 1 2 43 55 48 20 20 44 44 39 1 15 3...

Page 70: ...r Thailand 11 JBTN A937WJ3A AZ N V Key Button 12 CANGKD609WJ41 AN J Terminal Angle Bottom 12 1 Not Available TERM Decoration Bottom 12 2 Not Available N TERM Angle Bottom 12 3 PMLT A687WJQZ AM V Gasket 13 CANGKD591WJ31 AK N V Module Fix Angle Ass y x16 14 LHLDWA124WJKZ AC J Wire Holder x2 15 LHLDWA151WJKZ AB J Wire Holder x2 16 LHLDWA175WJUZ AC J Wire Holder x8 17 LHLDWA318WJKZ AD J Cable Clamp 18...

Page 71: ...0 S11 X9 X1 X2 X3 S7 S7 S7 S8 S8 S8 S9 S9 S3 S10 S5 S2 S6 S1 S4 S16 Stand unit X4 AC cord X7 Remote control unit X9 AAA size battery X5 AV cable X6 Component cable Other accessories X8 Operation manual X10 Antenna Adaptor X12 Skype Information sheet X1 X2 Stand Base Ass y Support Ass y X3 Screw ...

Page 72: ...a New Zealand Asia Middle East X10 QCNCWA969WJZZ AF J Antenna Adaptor for Philippines X12 TiNS F641WJZZ AB N J Skype Information Sheet for Australia New Zealand and Oceania S1 SPAKCH088WJZZ BV N V Packing Case Main NOT REPLACEMENT ITEM S2 SPAKCH089WJZZ BE N V Packing Case Bottom NOT REPLACEMENT ITEM S3 SPAKFC248WJZZ AR N V Packing Add Base NOT REPLACEMENT ITEM S4 SPAKLA006WJZZ AE N J Joint x5 NOT ...

Page 73: ...LC 90LE740X ...

Page 74: ...produced stored in a retrieval system or transmitted in any from or by any means electronic mechanical photocopying recording or otherwise without prior written permission of the publisher Dec 2012 YK DS SHARP CORPORATION Digital Information Appliance Group CS Promotion Center Yaita Tochigi 329 2193 Japan ...

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