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LG FA162, Руководство по обслуживанию

LG FA162 - мощная аудиосистема с инновационными технологиями. Для поддержания работы устройства предлагается бесплатное сервисное руководство. Скачайте его прямо сейчас с manualshive.com и узнайте все возможности вашей аудиосистемы LG FA162.

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3-1

SECTION 3  

ELECTRICAL

CONTENTS

TONE POINT REPAIR GUIDE

 ..........................................................................................................................

3-2

1. NO POWER PROBLEM ......................................................................................................................... 3-2

2. SPEAKER NO AUDIO OUTPUT ............................................................................................................ 3-3

3. USB NO DETECT ................................................................................................................................... 3-4

4. NO BOOTING ......................................................................................................................................... 3-5

ELECTRICAL TROUBLESHOOTING GUIDE OF AUDIO PART

 .....................................................................

3-6

1. 

μ

-COM PART CHECK-1 ......................................................................................................................... 3-6

2. FLD DISPLAY CHECK ........................................................................................................................... 3-7

3. TOUCH PAD CHECK ............................................................................................................................. 3-8

4. PWM MODULATION PART .................................................................................................................... 3-9

5. POWER AMP PART CHECK ............................................................................................................... 3-10

6. AUX FUNCTION CHECK ..................................................................................................................... 3-11

7. TUNER FUNCTION CHECK................................................................................................................. 3-12

8. SMPS POWER CIRCUIT ...................................................................................................................... 3-13

ELECTRICAL TROUBLESHOOTING GUIDE OF CD PART

 .........................................................................

3-16

1. POWER CHECK GUIDE ...................................................................................................................... 3-16

2. CD PART .............................................................................................................................................. 3-17

3. OPEN CLOSE NG ................................................................................................................................ 3-18

4. “ READING ” DISPLAY CHECK (= ONLY “CD” DISPLAY) .................................................................. 3-18

5. READING OK CHECK (= “NO DISC” DISPLAY) ................................................................................. 3-19

6. USB PART ............................................................................................................................................ 3-23

WAVEFORMS OF MAJOR CHECK POINT

 ....................................................................................................

3-24

WIRING DIAGRAM

 ..........................................................................................................................................

3-29

BLOCK DIAGRAMS

 ........................................................................................................................................

3-31

1. SYSTEM BLOCK DIAGRAM ................................................................................................................ 3-31

2. SMPS BLOCK DIAGRAM ..................................................................................................................... 3-33

3. POWER DIAGRAM ............................................................................................................................... 3-35

CIRCUIT DIAGRAMS

 ......................................................................................................................................

3-37

1. SMPS CIRCUIT DIAGRAM .................................................................................................................. 3-37

2. MAIN - MICOM CIRCUIT DIAGRAM .................................................................................................... 3-39

3. MAIN - DSP CIRCUIT DIAGRAM ......................................................................................................... 3-41

4. MAIN - SERVO CIRCUIT DIAGRAM .................................................................................................... 3-43

5. MAIN - AMP CIRCUIT DIAGRAM......................................................................................................... 3-45

6. FRONT CIRCUIT DIAGRAM ................................................................................................................ 3-47

7. TOUCH CIRCUIT DIAGRAM ................................................................................................................ 3-49

8. TOUCH SLIDE CIRCUIT DIAGRAM .................................................................................................... 3-50

CIRCUIT VOLTAGE CHART

 ...........................................................................................................................

3-51

PRINTED CIRCUIT BOARD DIAGRAMS

 .......................................................................................................

3-53

1. SMPS P.C.BOARD ............................................................................................................................... 3-53

2. MAIN P.C.BOARD ................................................................................................................................ 3-55

3. FRONT P.C.BOARD ............................................................................................................................. 3-59

4. TOUCH P.C.BOARD ............................................................................................................................. 3-61

5. TOUCH SLIDE P.C.BOARD ................................................................................................................. 3-61

Содержание FA162

Страница 1: ...ANUAL MODEL FA162 FA162N FAS162F CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL MODEL FA162 FA162N FAS162F SERVICE MANUAL P NO AFN75914299 JANUARY 2013 Website http biz lgservice com Internal Use Only ...

Страница 2: ...CONTENTS SECTION 1 SUMMARY SECTION 2 CABINET MAIN CHASSIS SECTION 3 ELECTRICAL SECTION 4 REPLACEMENT PARTS LIST 1 1 ...

Страница 3: ... SERVICING PRECAUTIONS 1 3 ESD PRECAUTIONS 1 5 HIDDEN KEY MODE 1 6 SERVICE INFORMATION FOR EEPROM 1 7 PROGRAM DOWNLOAD GUIDE 1 8 1 AUDIO PROGRAM 1 8 2 CD PROGRAM 1 9 3 TOUCH PROGRAM 1 10 4 EQ PROGRAM 1 11 SPECIFICATIONS 1 12 1 2 ...

Страница 4: ... the eyes Absolutely never permit laser beams to enter the eyes Also NEVER switch ON the power to the laser output part lens etc of the pick up if it is damaged 5 Cleaning the lens surface If there is dust on the lens surface the dust should be cleaned away by using an air bush such as used for camera lens The lens is held by a delicate spring When cleaning the lens surface therefore a cotton swab...

Страница 5: ...eplacing a component part first disconnect the power supply lead wire from the unit 2 All equipment measuring instruments and tools must be grounded 3 The workbench should be covered with a conductive sheet and grounded When removing the laser pick up from its conductive bag do not place the pick up on the bag This is because there is the possibility of damage by static electricity 4 To prevent AC...

Страница 6: ... damage ESD devices 5 Do not use freon propelled chemicals These can generate electrical charges sufficient to damage ESD devices 6 Do not remove a replacement ESD device from its protective package until immediately before you are ready to install it Most replacement ESD devices are packaged with leads electrically shorted together by conductive foam aluminum foil or comparable conductive materia...

Страница 7: ...ROM Option by SKIP 3 Clear EEPROM Front Key STOP RCU Key SKIP 4 Edit EEPROM Front Key STOP RCU Key SKIP You can change the digit of option by SKIP You can edit 0 f by REPEAT or PLAY PAUSE key 5 Bluetooth DUT Front Key STOP RCU Key PROGRAM Bluetooth model only 6 Power Disc Lock On Off CD Function Only Active Front Key STOP RCU Key EQ 7 Amp Clip On Off Front Key STOP RCU Key Mute Amp Clip Mode Chang...

Страница 8: ... position and make changes with Rmc REPEAT key Press STOP key FLD write ok Remote control Front STOP push same timing FLD E2P CLR Completed NAME OPT 0 OPT 1 OPT 2 OPT 3 OPT 4 OPT 5 OPT 6 OPT 7 OPT 8 OPT 9 DETECT NEW EEPROM OPTION EDIT SCREEN HEX 09 00 00 03 00 81 81 10 00 00 1 7 SERVICE INFORMATION FOR EEPROM ...

Страница 9: ... download the file to your set Caution When downloading the file you should neither unplug the usb device change to the other function nor power off the device Usb device must be unplugged when the downloading process is completed ON VFD DISPLAY SCREEN NO USB Insert usb device at usb function READ FIRMWARE WRITE 00 100 UPDATED POWER OFF AUTOMATICALLY When completed remove usb device 1 8 PROGRAM DO...

Страница 10: ...security software then download the file to your set Caution When downloading the file you should neither unplug the usb device change to the other function nor power off the device Usb device must be unplugged when the downloading process is completed ON VFD DISPLAY SCREEN NO USB Insert usb device at usb function READ FIRMWARE FINISH POWER OFF MANUALLY When completed remove usb device 1 9 ...

Страница 11: ...curity software then download the file to your set Caution When downloading the file you should neither unplug the usb device change to the other function nor power off the device Usb device must be unplugged when the downloading process is completed ON VFD DISPLAY SCREEN NO USB Insert usb device at usb function READ FIRMWARE T WRT 00 100 POWER OFF AUTOMATICALLY When completed remove usb device 1 ...

Страница 12: ...the security software then download the file to your set Caution When downloading the file you should neither unplug the usb device change to the other function nor power off the device Usb device must be unplugged when the downloading process is completed ON VFD DISPLAY SCREEN NO USB Insert usb device at usb function SEARCH EQ_DOWN POWER OFF AUTOMATICALLY When completed remove usb device 1 11 ...

Страница 13: ... 65 74 MHz 87 50 108 00 MHz Intermediate Frequency 10 7 MHz Signal to Noise Ratio 60 55 dB Mono Frequency Response 65 10 000 Hz AMPLIFIER Output Power 80 W 80 W T H D 0 5 Frequency Response 65 20 000 Hz Signal to noise ratio 75 dB SPEAKERS Type 3 Way 3 Speaker Impedance 4 Ω Frequency Response 70 20 000 Hz Sound Pressure Level 83 dB W 1 m Rated Input Power 80 W Max Input Power 160 W Net Dimensions ...

Страница 14: ...CTION 2 CABINET MAIN CHASSIS CONTENTS EXPLODED VIEWS 2 1 1 CABINET AND MAIN FRAME SECTION FA162N 2 3 2 DECK MECHANISM SECTION DP 12AM 2 5 3 PACKING ACCESSORY SECTION 2 7 4 SPEAKER SECTION FAS162F 2 8 2 1 ...

Страница 15: ...2 2 MEMO ...

Страница 16: ... 464 256 255 300 464 252 253 A42 A43 261 464 CABLE1 CABLE3 B MAIN SMPS FRONT 464 264 EXPLODED VIEWS 1 CABINET AND MAIN FRAME SECTION FA162N NOTES THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE ...

Страница 17: ...2 MECHANISM DECK SECTION DP 12AM A02 439 018 013 017 014 020 016 440 015 015B 015A 435 A01 026 001 002 012 012 037 012A 019 442 442 A03 003 010 MEMO ...

Страница 18: ...805 Clear Sheet 804 Bag 802 Box 900 Remote Control 803 Packing 825 FM Wire Antenna 808 Battery AAA AA A 801 Owner s Manual 3 PACKING ACCESSORY SECTION ...

Страница 19: ...A60R A60L 4 SPEAKER SECTION FAS162F ...

Страница 20: ... 3 18 4 READING DISPLAY CHECK ONLY CD DISPLAY 3 18 5 READING OK CHECK NO DISC DISPLAY 3 19 6 USB PART 3 23 WAVEFORMS OF MAJOR CHECK POINT 3 24 WIRING DIAGRAM 3 29 BLOCK DIAGRAMS 3 31 1 SYSTEM BLOCK DIAGRAM 3 31 2 SMPS BLOCK DIAGRAM 3 33 3 POWER DIAGRAM 3 35 CIRCUIT DIAGRAMS 3 37 1 SMPS CIRCUIT DIAGRAM 3 37 2 MAIN MICOM CIRCUIT DIAGRAM 3 39 3 MAIN DSP CIRCUIT DIAGRAM 3 41 4 MAIN SERVO CIRCUIT DIAGR...

Страница 21: ...3 I_HP_DET 14 I_TOUCH_IRQ 15 O_VFD_PWR 16 O_HP_SEL 17 O_PWM_MUTE 18 O_HP_MUTE 19 O_PWM_RST TAS5548 20 O_I2S_CTRL1 21 O_I2S_CTRL2 22 O_TUNER_RST 23 O_ADC_CLK 24 P_TUNER_DAT 25 O_TUNER_CLK 26 O_FAN_CTRL 27 P_TOUCH_DAT 28 O_TOUCH_CLK 29 O_EXP_CLK 30 O_EXP_DAT O_PWM_DAT I_ O_ I_ I_AMP_CLIP0 51 I_DVD_CE 52 I_REMOCON 53 RESET 54 XT1 55 XT2 56 VSS1 57 CF1 58 CF2 59 VDD1 60 I_KEY1 61 I_MIC_DET 62 O_USB_CT...

Страница 22: ...semble AMP IC heat sink heat sink screw must be assembled tightly 2 Still NG please check CN901 Pin10 12 V Pin1 2 3 4 28 V 3 If it is not appear Vcc change SMPS board assembly 4 After changing it if Vcc is still NG check CN901 Pin12 P CTRL 5 CN901 Pin12 P_CTRL is not appear change μ com IC IC101 2 3 Service hint Any picture Remark MAIN board top view SMPS board top view MAIN board top view CN901 H...

Страница 23: ...ETECT When USB insert USB no detect on the unit 3 1 Solution Replace IC305 3 2 How to troubleshoot Countermeasure 1 Please check IC305 Pin3 5 V 2 If it is not OK replace IC305 3 3 Service hint Any picture Remark FRONT board top view IC305 ...

Страница 24: ... will not boot up normally 4 1 Solution Replace X500 4 2 How to troubleshoot Countermeasure 1 Please check the soldering status of 12 MHz crystal X500 2 Please check the frequency of 12 MHz crystal X500 3 If the crystal doesn t oscillate replace X500 4 After changing it if the set is still not booting replace MAIN board assembly 4 3 Service hint Any picture Remark MAIN board top view X500 ...

Страница 25: ... output voltage of IC100 is 3 5 V Replace the related parts Check voltage of IC101 LC87FC096AVU Pin49 Check the related parts of IC100 AZ7027 Check CN103 Pin11 3 7 VA NO NO Check if input voltage of IC100 is over 3 5 V Check both end voltage of IC100 AZ7027 NO YES YES YES YES YES NO 1 μ COM PART CHECK 1 OK OK ...

Страница 26: ...place the related part Replace the related part FLD light on Replace the related part Check CN103 Pin1 2 3 power NO NO NO NO NO NO NO Check power of each Pin Check the related part Check the related part Check IC101 IC301 DATA communication Pin3 Pin3 STB Pin2 Pin2 DO Pin4 Pin1 CLK Check IC301 MC3501 power Pin50 VKK 30 V Pin9 51 3 3 VA Check CN102 connection condition and power F1 F2 both terminals...

Страница 27: ...heck IC104 output Pin3 3 3 V Check IC104 input Pin2 3 7 VA IF it is right OK IF it is NO Refer to SMPS Troubleshooting NO NO Check resistance output of line CLK R358 DATA R351 PN302 Pin5 3 3 V Check IC304 Pin1 SDA Pin2 SCL IC101 Pin27 DATA Pin28 CLK IC100 Pin5 CLK Pin23 DATA Check IC304 Pin24 3 3 V NO NO YES YES YES YES ...

Страница 28: ... Check IC602 TAS5548 OK Replace the related part Replace the related part Check IC104 Pin3 3 3V If it is YES then OK If it is NO then check IC104 Pin2 3 7VA IF it is NO refer to SMPS troubleshooting Check if X600 12 288 MHz is working NO NO NO NO Check IC602 TAS5548 Pin11 CLK input Check output of IC101 LC87FC096AVU Pin32 PWM_CLK Pin31 PWM_DATA Pin19 PWM_RESET Check IC602 TAS5548 input Pin20 DATA ...

Страница 29: ...Refer to SMPS troubleshooting Check resistance power IC700 R700 L700 L703 Replace the related part Check input power of IC700 Pin29 30 31 36 37 38 Check PWM modulator input Pin5 6 14 18 Power IC700 Pin27 28 32 35 39 40 output OK NO NO NO CN103 Pin14 15 27 V Check IC700 Pin1 2 22 12V input Check output line coil L701 L702 ...

Страница 30: ... contacts or not Check μ com IC100 Pin3 69 communication Refer to SMPS troubleshooting Check IC201 NO NO NO Check L201 L202 C221 C226 R242 R243 Check IC201 Pin14 5 V Pin5 36 46 3 3 V Check IC201 Pin41 SDOUT YES YES YES 6 AUX FUNCTION CHECK Check IC201 CS5346 Pin23 24 input waveform Check IC201 CS5346 Pin42 43 output waveform NO NO YES YES YES ...

Страница 31: ...3 69 communication Refer to SMPS troubleshooting Check IC201 Check tuner module power Pin6 3 3 V Check IC104 Pin3 NO NO NO NO NO Check L201 L202 C221 C226 R242 R243 Check IC201 Pin14 5 V Pin5 36 46 3 3 V Check IC201 Pin41 SDOUT Check tuner module TU100 operation YES NO YES YES YES Check IC201 CS5346 Pin21 22 input waveform Check IC201 CS5346 Pin42 43 output waveform NO NO YES YES ...

Страница 32: ...POWER CIRCUIT No 3 7 VA Replace F901 same fuse Replace TH901 Replace BD901 Check or replace IC901 IC901 normal Is the Vcc 13 V 27 V supplied to IC901 Pin5 F901 normal TH901 normal BD901 normal NO NO NO NO YES YES YES YES YES YES Power line of MAIN PCB is short ...

Страница 33: ... 3 V output Replace D951 Check or place IC951 Check soldering connector PN901 Check soldering connector PN901 Is the Vcc supplied to IC901 Pin5 Is the Vcc supplied to IC901 Pin5 Is there 3 3 V at IC901 Pin4 Is there 3 3 V at IC901 Pin4 D951 normal Check signal IC951 Pin NO NO NO NO NO NO YES YES YES YES YES YES YES YES ...

Страница 34: ...50 Check soldering connector PN901 Is the P_CTRL OK D950 normal R950 normal NO NO NO YES YES YES YES No AMP output Check 3 7 V Replace D906 R910 C915 Replace D955 Check soldering connector CN901 Is the Vcc supplied to IC902 Pin7 D955 normal NO NO NO NO Is the P_CTRL OK D906 R910 C915 normal YES YES YES YES YES ...

Страница 35: ...N403 Reconnect it Does no disc or time are appeared at FLD Check CD MD module Check connector CN403 OK Does CD appear at FLD Does disc1 appear at FLD Check the voltage of each pin on CN401 Push CD button NO NO NO NO Does AUX FM 87 5 appear at FLD Does it appear CD error at FLD YES YES YES YES NO YES YES YES YES ...

Страница 36: ...in34 DATA Check IC401 S3053 Check μ com interface circuit CN403 CE BTL MUTE CD IN CDOUT CLK WRQ FSEQ Check pick up movement Check IC400 BU9543KV Check connector CN403 OK Check CN403 Pin3 Open Pin4 Close Check READING display DISC reading is OK If play audio output check Check Open Close NO NO NO NO NO Check voltage IC401 Pin8 19 5 V YES YES YES YES YES YES YES YES YES YES YES YES 2 CD PART ...

Страница 37: ...CD DISPLAY Check connector locking CN401 CN403 Defective IC804 Refer to SMPS troubleshooting Defective μ com or connector Defective μ com or connector Defective IC801 Check voltage IC401 S3053 Pin8 19 5 V NO Check voltage IC804 Pin2 3 3 V Check reset signal PN805 Pin15 5 V Check μ com interface circuit PN805 PN805 Pin1 3 4 15 19 26 signal check 1 CE 3 DI 4 CLK 15 D0 19 RST 18 FSEQ 26 WRQ Pin3 DI f...

Страница 38: ...ck CN401 Pin3 4 SL SL Defective pick up or IC400 or IC401 Check CN401 Pin10 LD Defective pick up or IC400 or IC401 Check CN401 Pin5 6 SP SP Check CN401 Pin14 15 TA TA Defective pick up or IC400 or IC401 Defective pick up or IC400 or IC401 Is reading OK Does sled move NO B A C D E NO Does lense move Up Down Does laser light Does spindle lotate NO NO NO NO NO NO NO NO YES YES YES YES YES ...

Страница 39: ...ick up sled motor Defective pick up focus actuator Does SL waveform appear at IC400 Pin13 IC401 Pin3 waveform 2 sled motor wave Does FA waveform appear at IC400 Pin16 IC401 Pin13 waveform 3 focus coil drive wave Does SLIN waveform appear at IC400 Pin5 waveform 2 sled dirve wave Does FAIN waveform appear at IC400 Pin5 waveform 3 focus dirve wave NO NO A B NO NO Check IC401 line Check connector CN40...

Страница 40: ... 41 61 68 75 of IC401 RF IC supply voltage check Is 2 3 V Pin18 LDO of IC401 laser control voltage check NO C NO NO Check connector CN401 line NO YES YES YES YES 5 4 READING OK CHECK D NO DISC DISPLAY Defective IC400 Defective IC401 Defective CN401 Defective pick up spindle motor Does SP waveform appear at IC400 Pin11 waveform 4 spindle motor drive wave Does SPIN waveform appear at IC400 Pin6 wave...

Страница 41: ...up or IC401 Defective pick up or IC401 Does FE TE signal appear IC401 Pin10 RFMON Pin16 TE waveform 6 Does TA waveform appear at IC400 Pin17 waveform 5 tracking coil drive wave Does TAIN waveform appear at IC400 Pin22 waveform 5 tracking dirve wave NO E NO Check connector CN403 line Does ARF signal appear IC401 Pin2 waveform 6 NO NO NO YES YES YES YES ...

Страница 42: ... CN302 JK304 Check JK304 Pin2 D Pin3 D Check JK304 Pin2 D Pin3 D Check IC305 Pin3 5 V Check CN103 Pin9 5 6 V Check IC501 BX8805 Check IC501 BX8805 OK Turn on USB Check CHECKING or USB display Check Reading OK If play check audio output NO NO NO YES YES YES YES YES YES YES YES ...

Страница 43: ...DO IC400 PIN45 DATA IN 1 MICOM INTERFACE WAVEFORM IC400 PIN19 20 30 34 DURING POWER ON PIN 30 CD_RW PIN 34 DI IC400 PIN46 DATA OUT PIN 19 DO IC400 PIN45 DATA IN 2 MICOM INTERFACE WAVEFORM IC400 PIN19 20 30 34 DURING NORMAL PLAY WAVEFORMS OF MAJOR CHECK POINT ...

Страница 44: ...11 SL 2 SLED DRIVE AND MOTOR WAVEFORM IC401 PIN 4 11 DURING NORMAL PLAY PIN 1 FAO PIN 14 FA 3 FOCUS DRIVE AND MOTOR WAVEFORM IC401 PIN 1 14 WHEN FOCUS SEARCH FAILED OR THERE IS NO DISC ON TRAY PIN 1 FAO PIN 14 FA 3 FOCUS DRIVE AND MOTOR WAVEFORM IC401 PIN 1 14 THERE IS DISC ON TRAY AND FOCUS SEARCH SUCCESS ...

Страница 45: ...TOR WAVEFORM IC401 PIN 17 23 WHEN TOC READING PIN 26 TAO PIN 16 TA 5 TRACK DRIVE AND MOTOR WAVEFORM IC401 PIN 16 26 DURING NORMAL PLAY PIN 63 RFOUT PIN 61 RFMON FE PIN 62 TE 6 RF FOCUS AND TRACKING ERROR WAVEFORM IC400 PIN 61 62 63 DURING NORMAL PLAY ...

Страница 46: ...3 27 7 AUDIO PART I2S ...

Страница 47: ...3 28 MEMO ...

Страница 48: ...LOAD 9PIN SMPS 15PIN USB 6PIN FRONT 29PIN PICK UP 23PIN MAIN 15PIN PWR CORD MAIN FR4 2LAYER SMPS FR1 1LAYER FRONT FR1 1LAYER USB 6PIN FRONT 29PIN TOUCH 5PIN TOUCH 5PIN HARNESS FFC TOUCH FR1 SILVER WIRING DIAGRAM ...

Страница 49: ...mvj zVzslk zwpukslV yhjrpun svhk hSGiSGjSGkSGlSGm 127 QVQT 5 i Zr G wk sk mRVTSG RVT zslkRVT zwpukslRVT B 1B287 5 6 7 68 6 4 86 5 B0 B 7 5 5V 3 3V 1 8V 8 TKXGT SPI 670 4 74AHC244 SWITCH Interface DAC_MCLK BCK LRCK DAC_MCLK BCK LRCK DAC_DATA svhkRVT USB ADC_DATA 70 6 10 LPF PWM TAS5548 TAS5612LA 3 3V CTL I2C 62 12 288 MHz 3 3V PVDD 26V GVDD 12V AUX IR FRONT TOUCH 6 617 617 5 I2C AUX L R AUX Front B...

Страница 50: ...hjGpuw uyGM mps ly Rectifier Smoothing Circuit y h u z WY htw z pjlZiyW qm thpu z z yTh W Zt y h u z WX msXGT msYGO UY P U XY GO _yXYP mllkGihjr ZU G ju WX X wpu mllkGihjr htwGORPGY TZXU O rrP 2 SMPS BLOCK DIAGRAM ...

Страница 51: ... ilhk DVCC_5V 1614 4 8 4 5 VCC_1 8V 2 2 62 29 6 5 7 1 1 2 41 670 4 2 10 5 3 3V_VA For Backup 4106 1 6 3 3V 1 5A AVCC_3 3V ilhk VCC_1 2V 1 8 8 8 2 6 6 8A 8 28 8 8 1 75 1A 700mA 23mA 200mA 100mA 40mA 150mA 50mA 50mA USB 5V 1A 30mA 41mA 20mA 20mA 10mA 10mA 85mA 100mA 10mA 55mA 10mA 373mA 220mA 590mA 70mA 165mA 741mA 3 POWER DIAGRAM ...

Страница 52: ...2 are Defective CIRCUIT DIAGRAMS 1 SMPS CIRCUIT DIAGRAM WHEN SERVICING THIS CHASSIS UNDER NO CIRCUMSTANCES SHOULD THE ORIGINAL DESIGN BE MODIFIED OR ALTERED WITHOUT PERMISSION FROM THE LG CORPORATION ALL COMPONENTS SHOULD BE REPLACED ONLY WITH TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT SPECIAL COMPONENTS ARE SHADED ON THE SCHEMATIC FOR EASY IDENTIFICATION THIS CIRCUIT DIAGRAM MAY OCCASIONALL...

Страница 53: ...3 39 3 40 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T MICOM EAX64998702_2_1 2 SD 2 2013 01 25 2 MAIN MICOM CIRCUIT DIAGRAM ...

Страница 54: ...3 41 3 42 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T DSP EAX64998702_2_1 2 SD 3 2013 01 25 3 MAIN DSP CIRCUIT DIAGRAM ...

Страница 55: ...3 43 3 44 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T SERVO EAX64998702_2_1 2 SD 4 2013 01 25 4 MAIN SERVO CIRCUIT DIAGRAM ...

Страница 56: ...3 45 3 46 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T AMP EAX64998702_2_1 2 SD 5 2013 01 25 5 MAIN AMP CIRCUIT DIAGRAM ...

Страница 57: ...3 47 3 48 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T FRONT EAX65084102_0_1 0 SD 2013 01 25 6 FRONT CIRCUIT DIAGRAM ...

Страница 58: ...3 50 A 1 2 3 4 5 6 7 8 9 10 11 12 B C D E F G H I J K L M N O P Q R S T TOUCH SLIDE EAX64998901_3_1 3 SD 2013 01 25 TOUCH EAX64998801_3_1 3 SD 2013 01 25 7 TOUCH CIRCUIT DIAGRAM 8 TOUCH SLIDE CIRCUIT DIAGRAM ...

Страница 59: ...1 VDD 2 7 5 5V 3 35V IC303 Clock Driver BU2090F VDD 16 VDD 2 7 5 5V 3 24V TOUCH Board IC304 IC Capacitive Touch Sensor TOUCHCORE380 VDDIO 24 VDDIO 2 7V 3 6V 3 24V CIRCUIT VOLTAGE CHART 1 ICs 3 CAPACITORS Location No Description Specification MODE DESIGN SPEC REAL VOLTAGE MAIN Board IC104 IC LDO Voltage Regulator TJ3965D ADJ IN 3 7VA 3 7V OUT 3 3V 3 31V IC505 IC Voltage Regulator AZ1117BH AD JTRE1 ...

Страница 60: ...3 53 3 54 NOTE Warning Parts that are critical with respect to risk of fire or electrical shock PRINTED CIRCUIT BOARD DIAGRAMS 1 SMPS P C BOARD TOP VIEW BOTTOM VIEW ...

Страница 61: ...3 55 3 56 2 MAIN P C BOARD TOP VIEW ...

Страница 62: ...MAIN P C BOARD BOTTOM VIEW 3 57 3 58 ...

Страница 63: ...3 59 3 60 3 FRONT P C BOARD TOP VIEW BOTTOM VIEW ...

Страница 64: ...3 61 3 62 4 TOUCH P C BOARD TOP VIEW 5 TOUCH SLIDE P C BOARD TOP VIEW BOTTOM VIEW BOTTOM VIEW ...

Страница 65: ...3 63 3 64 MEMO MEMO ...

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