LG SH4 Скачать руководство пользователя | Manualshive

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4-20

4-19

Location No.

Description

Part Site

Speci

fi

cation

Pin Number

Speci

fi

cation

Real Value (#1, #2)

WIC601

IC,

Sound/Audio

Processor

PS9860

VDD _IO:

#17, 43, 52

VDD_IO:

2.97 V ~ 3.63 V

3.37 V

3.37 V

VDD_CORE:

#6, 25, 63

VDD_CORE:

1.08 V ~ 1.32 V

1.27 V

1.27 V

VDD_PLL: #68

VDD_PLL:

1.08 V ~ 1.32 V

1.28 V

1.28 V

WIC701

IC,

Audio Ampli

fi

er

TAS5612LADDVR

PVDD:

#29, 30, 31,

36, 37, 38

PVDD:

12 V ~ 34 V

20.61 V

20.64 V

GVDD: #1, 22

GVDD:

10.8 V ~ 13.2 V

12.41 V

12.42 V

VDD: #2

VDD:

10.8 ~13.2V

12.47 V

12.47 V

WIC703

IC,

Analog Switch

BD2242G

VIN: #1

VIN:

2.8 V ~ 5.5 V

3.42 V

3.42 V

VOUT: #6

VOUT:

2.8 V ~ 5.5 V

3.41 V

3.41 V

WIC704

IC,

DC,DC Converter

MP1432

VIN: #7

VIN:

4.5 V ~ 45 V

34.61 V

34.64 V

SW: #1

VOUT:

0.8 V ~ 42 V

12.53 V

12.53 V

WIC705

IC,

DC,DC Converter

SN1501019

VIN: #3

VIN:

4.5 V ~ 17 V

12.52 V

12.52 V

SW: #2

VOUT:

0.76 V ~ 7 V

3.42 V

3.42 V

CIRCUIT VOLTAGE CHART

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Содержание SH4

Страница 1: ...NUAL SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL Internal Use Only Wireless Sound Bar JANUARY 2016 MODEL SH5B SH5B SPH5B W MODEL SH5B SH5B SPH5B W P NO AFN77195067 ...

Страница 2: ...1 1 CONTENTS SECTION 1 GENERAL SECTION 2 CABINET MAIN CHASSIS SECTION 3 ELECTRICAL SECTION 4 WIRELESS SUBWOOFER PART SECTION 5 REPLACEMENT PARTS LIST ...

Страница 3: ...1 2 SECTION 1 GENERAL CONTENTS ESD PRECAUTIONS 1 3 WIRELESS SUBWOOFER CONNECTION 1 4 HIDDEN KEY MODE 1 5 MCS EQ PROGRAM UPDATE GUIDE 1 6 SPECIFICATIONS 1 7 ...

Страница 4: ...harges sufficient to 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 comparabl...

Страница 5: ...t volume level of the main unit to minimum by pressing VOL button repeatedly MIN appears on the display window 2 Press and hold Mute on the remote control for about 3 seconds SUB WF RESET appears on the display window 3 Press and hold Pairing on the back of the wireless subwoofer for more than 5 seconds The LED of the wireless subwoofer lights up alternately in red and green 4 Disconnect and recon...

Страница 6: ...ct Main unit Volume Remote control AUTO VOL APD Time Display Main unit Volume Remote control AV SYNC APD On Off Main unit Volume Remote control Forward Skip Direction key for HIDDEN MODE Play Pause UP REPEAT Down Forward Skip Right Backward Skip Left AUTO VOL Enter Demo Mode Enter Main unit MIN volume minimum state Main unit F Function for 7 seconds Exit Main unit F Function for 7 seconds TV Remoc...

Страница 7: ...less Rx E WIRELESS_RX bin if USB driver is E 2 Update 1 Power on 2 Select the USB function USB Mode 3 Insert USB 4 Display in VFD MCS FW UP FINISH Power off EQ EQ UP FINISH Power off Wireless Tx UPDATE TX XX Progress FINISH Power off Wireless Rx UPDATE RX XX Progress FINISH Power off 5 Loading is shown while updating Never remove USB or AC cord 6 After update finish show FINISH in VFD and power of...

Страница 8: ...ormat Dolby Digital DTS Digital Surround PCM INPUT OUTPUT OPTICAL IN Digital audio in 3 V p p Optical jack x 1 PORTABLE IN Portable in 0 5 Vrms 3 5 mm stereo jack x 1 HDMI IN 19 Pin Type A HDMI connector x 1 HDMI OUT 19 Pin Type A HDMI connector x 1 AMPLIFIER RMS OUTPUT Total 320 W Front 60 W x 2 4 Ω at 1 khz THD 10 Subwoofer 200 W 3 Ω at 80 Hz THD 10 WIRELESS SUBWOOFER Power requirements Refer to...

Страница 9: ...1 8 ...

Страница 10: ...CHASSIS CONTENTS DISASSEMBLY INSTRUCTIONS 2 2 1 HOW TO DISASSEMBLE THE MAIN SET 2 2 2 HOW TO DISASSEMBLE THE WOOFER 2 7 EXPLODED VIEWS 2 9 1 MAIN SET SECTION 2 9 2 WIRELESS SUBWOOFER SECTION 2 11 3 PACKING ACCESSORY SECTION 2 13 ...

Страница 11: ...2 2 DISASSEMBLY INSTRUCTIONS Figure 1 2 Figure 1 1 1 HOW TO DISASSEMBLE THE MAIN SET 2 Remove the Case Bottom Assembly 1 Remove the 19 screws ...

Страница 12: ...2 3 Figure 1 4 Figure 1 3 HOW TO DISASSEMBLE THE MAIN SET 4 Remove the SPK Chamber L R Assembly 3 Remove the 2 screws Disconnect the Harmess FFC cables KEY SPK and Remove the Main PCB Assembly ...

Страница 13: ...2 4 Figure 1 6 Figure 1 5 HOW TO DISASSEMBLE THE MAIN SET 6 Remove the 4 screws and Disconnect FFC cables BT Wireless 5 Remove the L R Deco Assembly G G BT Wireless ...

Страница 14: ...2 5 Figure 1 8 Figure 1 7 HOW TO DISASSEMBLE THE MAIN SET 8 Remove the EMI Shield Tape of Bottom side 7 Remove the EMI Shield Tape ...

Страница 15: ...2 6 Figure 1 9 HOW TO DISASSEMBLE THE MAIN SET 9 Disassembly finish ...

Страница 16: ...e the 5 screw s and Disconnect Harness FFC cables Wireless Power SPK 3 Remove the WF board Assembly and the Wireless Module 1 Remove the 13 screws and pull out the Rear Panel Assembly Power Inlet Socket Wireless FFC cable SPK cable Remove EVA covered Wireless module ...

Страница 17: ...2 8 Figure 2 3 HOW TO DISASSEMBLE THE WOOFER 4 Disassembly finish ...

Страница 18: ...2 A80L B 283 506 282 281 506 A80R A 283 284 252 252 A42 251 253 254 462 F A55 KEY 255 E F CABLE1 WIRELESS D A54 CABLE3 A52 C CABLE2 470 A41 506 506 271R 271L 462 462 506 272 272 274 273 273 263 265 285RR 285RL 285LR 285LL 264 268 267 256 CASE BOTTOM EXPLODED VIEWS 1 MAIN SET SECTION ...

Страница 19: ...951 B A 955 952 A 954 955 953 956 958 957 A900 A900W B 959 950 A45W A54W 960 960 961 2 WIRELESS SUBWOOFER SECTION ...

Страница 20: ...2 13 802 Box 803 Packing Main 300 Power cord 808 Batteries 2 804 Bag 806 Optical cable 801 Owner s manual 833 AC adapter 900 Remote control 836 Screws 2 835 Wall bracket 3 PACKING ACCESSORY SECTION ...

Страница 21: ...2 14 ...

Страница 22: ...OINT 3 14 1 CRYSTAL 3 14 2 FLASH MEMORY 3 15 3 TACT KEY 3 16 4 USB 3 17 5 REMOTE CONTROL 3 18 6 OPTICAL 3 19 7 PORTABLE 3 20 8 AUDIO PWM 3 21 WIRING DIAGRAM 3 23 BLOCK DIAGRAM 3 25 CIRCUIT DIAGRAMS 3 27 1 MAIN DSP CIRCUIT DIAGRAM 3 27 2 MAIN PWM AMP CIRCUIT DIAGRAM 3 29 3 MAIN POWER CIRCUIT DIAGRAM 3 31 4 MAIN HDMI JACK CIRCUIT DIAGRAM 3 33 5 FRONT CIRCUIT DIAGRAM 3 35 6 KEY CIRCUIT DIAGRAM 3 37 C...

Страница 23: ... power problem occurs when you power on the unit 1 1 Solution Replace F601 F602 1 2 How to troubleshoot Countermeasure 1 Change adaptor replace F601 F602 1 3 Service hint Any picture Remark MAIN board top view F601 F602 F601 F602 F601 F602 F601 F602 ...

Страница 24: ... VA at L604 2 If 12 VA is not output check 25 VA at pin2 of IC608 3 1 2 is OK Replace IC608 2 2 IC605 1 Check 5 1 VA at L603 2 If 5 1 VA is not output check 12 VA at pin3 5 of IC605 3 1 2 is OK Replace IC605 MAIN board top view MAIN board top view L603 L603 L604 L604 IC605 IC605 IC608 IC608 ...

Страница 25: ...at L602 2 If 3 3 VA is not output check 12 VA at pin3 5 of IC606 3 1 2 is OK Replace IC606 2 4 IC607 1 Check 1 2 VA at L601 2 If 1 2 VA is not outputted check 5 1 VA at pin3 5 of IC607 3 1 2 is OK Replace IC607 MAIN board top view MAIN board top view L601 L601 L602 L602 IC607 IC607 IC606 IC606 ...

Страница 26: ...ldering status of portable jack JK854 2 Please check L854 L855 portable L R signal of portable jack JK854 If you can t find input signal replace JK854 3 If you can find input signal check pin13 14 of IC508 4 If you can t find signal at pin13 14 of IC508 replace IC508 3 3 Service hint Any picture Remark MAIN board top view JK854 JK854 IC508 IC508 L855 L855 L854 L854 ...

Страница 27: ...r eyes at CN506 and wireless module 2 Please check 3 3 V of WL_3V3 at FB507 If 3 3 V is ok at FB507 please check SPI signal WL_SPI_CS DO WP DI CLK of IC505 pin1 2 3 5 6 3 If you can t have no signal please replace IC505 4 If 3 is OK then proceed S W update Update wireless TX main set and wireless RX subwoofer each 4 3 Service hint Any picture Remark MAIN board top view IC505 IC505 FB507 FB507 CN50...

Страница 28: ...tus of bluetooth cable connection on your eyes at CN508 and bluetooth module 2 Please check 3 3 VA at FB503 If 3 3 V is ok at FB503 please check BT_SDA BT_SCL BT_RST pin53 51 25 of IC502 and BT_RX BT_TX pin29 27 If you have no signal please replace IC502 5 3 Service hint Any picture Remark MAIN board top view MAIN board bottom view IC502 IC502 FB503 FB503 CN508 CN508 ...

Страница 29: ...d 6 2 How to troubleshoot Countermeasure 1 Please check externally status USB connector on your eyes at JK853 2 Please check USB data signal at FL851 signal D D If you have not data signal please replace FL851 6 3 Service hint Any picture Remark MAIN board top view JK853 JK853 FL851 FL851 ...

Страница 30: ... to troubleshoot Countermeasure 1 Please check 3 3VA at R868 If you can check 3 3 VA please confirm OPT_DET signal R5R6 when optical mode 2 In spite of process 1 set has abnormal output then replace IC507 7 3 Service hint Any picture Remark MAIN board top view IC507 IC507 R5R6 R5R6 R868 R868 R868 R868 ...

Страница 31: ...is OK Replace IC802 8 2 IC803 1 Check 1 0 V at L803 2 If 1 0 V is not output check 3 3 V at pin1 of IC803 3 1 2 is OK Replace IC803 8 3 IC801 1 Check 5 1 VA at L804 of JK800 2 If 5 1 VA is not output following Step 2 2 3 1 2 is OK Replace IC801 MAIN board top view MAIN board bottom view L804 L804 L801 L802 L801 L802 JK800 JK800 IC801 IC801 IC802 IC802 IC803 IC803 ...

Страница 32: ... pin1 2 3 4 and FR_P N TWR_P N CN704 pin1 2 4 5 2 Check resistor crack cold solder of PWM IC out R710 R717 3 If PWM IC out is ok and speaker out FL FR TWL TWR has DC voltage replace IC702 IC703 AMP IC on MAIN bottom board 9 3 Service hint Any picture Remark MAIN board top view MAIN board bottom view CN703 CN703 CN704 CN704 IC701 IC701 PWM IC PWM IC R710 R717 R710 R717 IC703 IC703 IC702 IC702 ...

Страница 33: ...NO POWER PROBLEM guide STEP 1 1 2 Check GVDD VDD voltage 12 V of IC702 IC703 pin1 2 If GVDD VDD voltage has 8 5 V under refer to 12 V no power repair guide STEP 2 1 3 Check impedance 4 Ω of speaker unit If impedance of speaker unit has 1 Ω under replace speaker unit 4 If check point 1 2 3 is ok replace IC702 IC703 AMP IC on MAIN bottom board 10 3 Service hint Any picture Remark MAIN board bottom v...

Страница 34: ...oard 11 2 How to troubleshoot Countermeasure 1 Check voltage 12 V of IC702 IC703 at pin1 if 12 V has problem no power repair guide STEP 2 1 2 If 12 V is ok IC702 IC703 AMP IC on MAIN bottom board No display or No Sound 11 3 Service hint Any picture Remark MAIN board bottom view IC703 IC703 IC702 IC702 ...

Страница 35: ...3 14 WAVEFORMS OF MAJOR CHECK POINT 1 CRYSTAL FIG 1 1 X501 24 MHz 1 FIG 1 2 X502 X701 24 576 MHz FIG 1 3 X801 27 MHz 2 3 1 2 2 3 ...

Страница 36: ...3 15 2 FLASH MEMORY FIG 2 VCC CS CLK DO 4 5 6 7 6 7 5 4 VCC CS CLK DO ...

Страница 37: ...3 16 3 TACT KEY FIG 3 2 Press FUNC Key 0 72 0 82 V FIG 3 1 Press Power Key 1 1 13 V 8 9 FIG 3 3 Press VOL Key 0 424 0 485 V 10 FIG 3 4 Press VOL Key 0 V 11 8 10 9 11 ...

Страница 38: ...3 17 4 USB FIG 4 1 5 V Voltage 12 FIG 4 2 USB D 13 FIG 4 3 USB D 14 12 14 13 ...

Страница 39: ...NTROL FIG 5 1 Input Voltage 15 FIG 5 2 Low Timing 16 Item Measured Spec Input Level 3 3 V IR Receiver Spec 2 7 5 5 V Low Timing 4 4 ms 3 6 ms 5 04 ms High Timing 4 48 ms 4 08 ms 5 04 ms FIG 5 3 High Timing 17 16 17 15 ...

Страница 40: ...3 19 6 OPTICAL FIG 6 1 OPT_IN 18 FIG 6 2 OPT_DET 19 19 18 ...

Страница 41: ...3 20 21 20 22 7 PORTABLE FIG 7 1 ADC IC 5 V 20 FIG 7 2 ADC IC 3 3 V 21 FIG 7 3 Analog Input Voltage 1 1 27 Vrms 22 ...

Страница 42: ...3 21 8 AUDIO PWM 1 2 FIG 8 2 PWM IC 1 2 V FIG 8 1 PWM IC 3 3 V 23 24 FIG 8 3 BCK 25 FIG 8 4 LRCK 26 24 23 25 26 ...

Страница 43: ...3 22 FIG 8 7 Front L 384 14 KHz FL FL 29 FIG 8 8 Front R 384 17 KHz FR FR 30 29 27 30 28 AUDIO PWM 2 2 FIG 8 5 Tweeter L 384 14 KHz TWL TWL 27 FIG 8 6 Tweeter R 384 17 KHz TWR TWR 28 ...

Страница 44: ...k SMD EAG63270202 5P 2 0mm ST Non Lock SMD EAG63270203 MAIN LCD Module 2P 1 25mm ST Non Lock SMD EAG60989201 2P 1 25mm AG Non Lock SMD 6630V901352 12P 2mm ST SOCKET SMD EAG63717501 HDMI 26P 0 5mm ST Non_Lock SMD 6630X60142K 10P 1 0mm AG Lock SMD EAG62611102 Wireless AG62611102 26 26 Bluetooth 12P 2mm AG MALE SMD EAG64811001 WIRING DIAGRAM ...

Страница 45: ... AMP_FAULT AMP_PDN DC_PROTECTION FL_P FL_N FR_P FL_N HDMI_I2S_BCK HDMI_I2S_LRCK HDMI_DNMX_ADA HDMI OUT HDMI IN H HPD_TX DDC_SDA DDC_SCL ARC HPD_RX DDC_SDA DDC_SCL HDMI_CEC HDMI_SDA SCL BT_ADATA HOT_PLUG_DET BT CSR BT_CTS BT_RTS BT_RX TX BT_RST BT_SCL BT_SDA HDMI_SDA SCL CS8422 DIR_LRCK DIR_BCK DIR_ADATA PCM1808 ADC_BCK ADC_LRCK ADC_ADATA DIR_MCLK DIR_INT DIR_TEMP DIR_RCBL DIR_CSD DIR_RST DIR_SDA S...

Страница 46: ...21 20 22 19 18 2 8 10 9 11 6 7 5 4 14 13 1 WAVEFORM NUMBER 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 EAX66934001 Rev1 2 8 MAIN 2 2016 01 06 CIRCUIT DIAGRAMS 1 MAIN DSP CIRCUIT DIAGRAM ...

Страница 47: ...3 30 3 29 2 29 24 23 25 26 WAVEFORM NUMBER 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 PWM AMP EAX66934001 Rev1 2 8 MAIN 3 2016 01 06 27 30 28 2 MAIN PWM AMP CIRCUIT DIAGRAM ...

Страница 48: ...3 32 3 31 3 MAIN POWER CIRCUIT DIAGRAM 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 POWER EAX66934001 Rev1 2 8 MAIN 4 2016 01 06 ...

Страница 49: ...3 34 3 33 3 12 WAVEFORM NUMBER 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 HDMI JACK EAX66934001 Rev1 2 8 MAIN 5 2016 01 06 4 MAIN HDMI JACK CIRCUIT DIAGRAM ...

Страница 50: ...3 36 3 35 16 17 15 WAVEFORM NUMBER 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 EAX66795601 Rev1 4 5 2015 12 10 5 FRONT CIRCUIT DIAGRAM ...

Страница 51: ...3 38 3 37 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 KEY EAX66795701 Rev1 4 6 2015 12 10 6 KEY CIRCUIT DIAGRAM ...

Страница 52: ... 39 V IC506 IC Serial Flash Memory 8 3 3 VA 3 38 V IC507 IC I O Support Chip 3 19 22 3 3 VA 3 357 V IC508 IC A D Converter 3 5 V VCC 5 17 V 4 3 3 V VDD 3 4 V IC601 IC Analog Switch 1 3 3 VA 3 39 V 6 3 3 V 3 37 V IC602 IC Analog Switch 1 5 1 VA 5 17 V 6 5 V USB 5 16 V IC603 IC Analog Switch 1 3 3 VA 3 38 V 6 3 3 V Wireless 3 38 V IC604 IC Analog Switch 1 5 1 VA 5 18 V 6 5 V 5 17 V IC605 IC DC_DC Co...

Страница 53: ...3 42 3 41 PRINTED CIRCUIT BOARD DIAGRAMS 1 MAIN P C BOARD DIAGRAM TOP VIEW BOTTOM VIEW ...

Страница 54: ...3 44 3 43 2 FRONT P C BOARD DIAGRAM 3 KEY P C BOARD DIAGRAM TOP VIEW TOP VIEW BOTTOM VIEW BOTTOM VIEW ...

Страница 55: ...3 46 3 45 ...

Страница 56: ...HECK POINT 4 5 1 CRYSTAL 4 5 2 FLASH MEMORY 4 5 3 VOLTAGE 4 6 4 AMP VOLTAGE 4 7 5 PWM 4 8 6 LED 4 9 WIRING DIAGRAM 4 11 BLOCK DIAGRAM 4 13 CIRCUIT DIAGRAMS 4 15 1 WOOFER SMPS AMP SMPS CIRCUIT DIAGRAM 4 15 2 WOOFER SMPS AMP AMP CIRCUIT DIAGRAM 4 17 CIRCUIT VOLTAGE CHART 4 19 PRINTED CIRCUIT BOARD DIAGRAMS 4 21 1 WOOFER SMPS AMP P C BOARD 4 21 ...

Страница 57: ...NG Replace WIC704 If you can t check PVDD voltage then replace the PCB board 1 2 3 3 VA 1 Check 3 3 VA at WL707 coil 2 If 3 3 VA is not checked at the point then find 12 VA at pin3 of WIC705 3 1 2 is NG Replace WIC705 If you can t check 12 VA voltage following the step 1 1 Woofer SMPS AMP board top view Woofer SMPS AMP board top view WL708 WL708 WIC704 WIC704 WIC705 WIC705 WL707 WL707 ...

Страница 58: ...OWER ON ERROR Fundamental power check points 1 3 3 3 VA 1 Check 3 3 VA at pin1 of WIC703 2 Check 3 3V_PWM at pin6 of WIC703 3 1 2 is NG Replace WIC703 If you can t check PVDD voltage then replace the PCB board Woofer SMPS AMP board bottom view ...

Страница 59: ...set MAIN SET Soundbar vol MIN and push Mute key sustain 3 5 seconds Subwofer Push Pairing key on the back case of the wireless subwoofer The LED of of the wireless subwoofer blink red and green pull out power cord The main set and the wireless subwoofer are factory reset mode then power on Woofer SMPS AMP board top view WFB604 WFB604 Wireless module Wireless module Connection check Connection chec...

Страница 60: ...4 5 WAVEFORMS OF MAJOR CHECK POINT 1 CRYSTAL 2 FLASH MEMORY FIG 1 WX601 24 576 MHz FIG 2 VCC CS CLK DO 1 2 4 3 5 VCC CS CLK DO 1 2 4 5 3 ...

Страница 61: ...4 6 3 VOLTAGE FIG 3 2 Woofer 12 VA FIG 3 1 Woofer PVDD 6 7 FIG 3 3 Woofer 3 3 VA 8 FIG 3 4 Woofer 3 3V_PWM 9 7 6 8 9 ...

Страница 62: ...4 7 4 AMP VOLTAGE FIG 4 2 AMP_12V FIG 4 1 AMP PVDD 10 11 11 10 ...

Страница 63: ...4 8 5 PWM FIG 5 2 Woofer PWM SW Signal FIG 5 1 Woofer PWM SW Signal 12 13 13 12 ...

Страница 64: ...4 9 6 LED FIG 6 2 Pairing On Status Green LED FIG 6 1 Pairing Off Status Red LED 14 15 15 14 ...

Страница 65: ...4 10 ...

Страница 66: ...B 2P 3 96mm ST Non Lock SMD 6602V39002A 26P 0 5mm ST Non Lock SMD 6630X60142K Wireless 2P 3 96mm ST Non Lock SMD 6630VM015A2 Power Wireless Module SH4 SH5 SH5B EAT62593101 2 4G SH7 SH7B SH8 EAT63117401 5G 4 12 4 11 WIRING DIAGRAM Top Bottom ...

Страница 67: ...PWM PS9860 Wireless TX Wireless RX FL LPF AMP IC TAS5612LA FR LPF AMP_PDN SW SW AMP_SD I2S I2C Reset KEY PAIRING LED RED GREEN 4 14 4 13 BLOCK DIAGRAM ...

Страница 68: ...ON 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 OCCASIONALLY DIFFER FROM THE ACTUAL CIRCUIT USED THIS WAY IMPLEMENTATION OF THE LATEST SAFETY AND PERFORMANCE IMPROVEMENT CHANGES INTO THE SET IS NOT DELAYED UNTIL THE NEW SERVICE LITE...

Страница 69: ... 4 17 15 14 2 4 5 3 11 10 1 7 6 13 12 8 9 WAVEFORM NUMBER 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 EAX66919101 Rev1 1 3 MAIN 1 2015 12 10 2 WOOFER SMPS AMP AMP CIRCUIT DIAGRAM ...

Страница 70: ...io Amplifier TAS5612LADDVR PVDD 29 30 31 36 37 38 PVDD 12 V 34 V 20 61 V 20 64 V GVDD 1 22 GVDD 10 8 V 13 2 V 12 41 V 12 42 V VDD 2 VDD 10 8 13 2V 12 47 V 12 47 V WIC703 IC Analog Switch BD2242G VIN 1 VIN 2 8 V 5 5 V 3 42 V 3 42 V VOUT 6 VOUT 2 8 V 5 5 V 3 41 V 3 41 V WIC704 IC DC DC Converter MP1432 VIN 7 VIN 4 5 V 45 V 34 61 V 34 64 V SW 1 VOUT 0 8 V 42 V 12 53 V 12 53 V WIC705 IC DC DC Converte...

Страница 71: ...4 22 4 21 PRINTED CIRCUIT BOARD DIAGRAMS 1 WOOFER SMPS AMP P C BOARD TOP VIEW BOTTOM VIEW NOTE Warning Parts that are critical with respect to risk of fire or electrical shock ...

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