LG LHS-A4000C Service Manual Download Page 9 | Manualshive

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Summary of Contents for LHS-A4000C

Page 1: ...DIGITAL HOME CINEMA SYSTEM SERVICE MANUAL MODELS LHS A4000WA LHS A4000WD LHS A4000C LHS A4000T MODELS LHS A4000WA LHS A4000WD LHS A4000C LHS A4000T SERVICE MANUAL P NO 3829RGP019S JULY 2005 ...

Page 2: ... 1 2 SPECIFICATIONS 1 3 SECTION 2 ELECTRICAL TROUBLESHOOTING GUIDE 2 1 IC VOLTAGE SHEET 2 3 WIRNG DIAGRAMS 2 4 BLOCK DIAGRAMS 2 6 SCHEMATIC DIAGRAMS 2 8 PRINTED CIRCUIT DIARGAMS 2 20 SECTION 3 EXPLODED VIEWS 3 1 SECTION 4 REPLACEMENT PARTS LIST 4 1 ...

Page 3: ...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 comparable condu...

Page 4: ...Frequency 10 7 MHz Signal to Noise Ratio 60 55 dB Frequency Response 140 10 000 Hz AM Tuning Range 522 1611 kHz or 530 1610 kHz or 530 1720 kHz Intermediate Frequency 450 kHz Signal to Noise Ratio 37 dB Frequency Response 140 25 000 Hz Inputs AUX COAXIAL OPTICAL AUDIO Model Satellite Speaker Center Speaker Active Subwoofer LHS A4000T LHS A4000C LHS A4000WA WD Type 2 Way 2 Speaker 2 Way 2 Speaker 1...

Page 5: ......

Page 6: ...2 1 TROUBLESHOOTING GUIDE Hello SECTION 2 ELECTRICAL ...

Page 7: ...2 2 AUDIO µ COM Circuit TURN ON Hello POWER Check or Press the ON KEY ...

Page 8: ...IC502 IC503 IC504 PIN NO Volt V IC700 LC87F57C8A PIN NO Volt V IC301 PS9808 PIN NO Volt V 3 6 10 13 22 29 35 39 42 47 56 65 66 72 80 87 91 94 1 8V 1 8V 3 3V 1 8V 3 3V 3 3V 1 8V 3 3V 1 8V 3 3V 3 3V 3 3V 1 8V 3 3V 1 8V 3 3V 1 8V 3 3V 4 DAP 4 7 12 15 21 22 9 36 59 10 40V 10 40V 10 40V 10 40V 5V 5V 4 9V 4 96V 4 876V 24 4 99V 4 8 8 19V 8 2V 1 12 23 34 2 41V 2 41V 2 41V 2 387 13 43 4 8V 4 8V ...

Page 9: ......

Page 10: ...2 4 2 5 WIRING DIAGRAM PW901 CN801 JK204 TUNER TU201 TUNING DOWN TUNING UP ST BY ON VOL DOWN MEMORY FUNCTION VOL UP CN902 CN703 CN205 CN501 PN701 PN703 PN205 PN501 ...

Page 11: ...2 6 2 7 BLOCK DIAGRAM TUN TUN IC206 4052 IC504 STA505 IC503 STA515 IC501 STA505 IC502 STA505 22µH 22µH 22µH IC301 PS9818 ...

Page 12: ...2 8 2 9 SCHEMATIC DIAGRAMS 1 AMP SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...

Page 13: ...2 10 2 11 2 SMPS WIDE SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...

Page 14: ...2 12 2 13 3 DSP SCHEMATIC DIAGRAM 1 A B C D E F G H I J K L M N O P Q R S T ...

Page 15: ...2 14 2 15 4 DSP SCHEMATIC DIAGRAM 2 A B C D E F G H I J K L M N O P Q R S T ...

Page 16: ...2 16 2 17 5 MICOM POWER SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...

Page 17: ...2 18 2 19 6 I O FRONT SCHEMATIC DIAGRAMS A B C D E F G H I J K L M N O P Q R S T ...

Page 18: ...2 20 2 21 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW ...

Page 19: ...2 22 2 23 1 MAIN P C BOARD BOTTOM VIEW ...

Page 20: ...2 24 2 25 2 FRONT JACK P C BOARD TOP VIEW ...

Page 21: ...2 26 2 27 2 FRONT JACK P C BOARD BOTTOM VIEW ...

Page 22: ...2 28 2 29 3 SMPS P C BOARD ...

Page 23: ...H A4000W MOLD KNOB FUNTIO 955 3610RM0055A FOOT SPK LH A4000W MOLD FOOT 956 3720RMM020A PANEL AUDIO SPK LH A4000W MOLD PANEL LEFT 958 3720RMM021A PANEL AUDIO SPK LH A4000W MOLD PANEL TOP 959 6400WKEM01A SPEAKER WOOFER F70C D390 KEP WOOFER 4OHM 120 960 3720RMM019A PANEL AUDIO SPK LH A4000W MOLD PANEL RIGHT 961 3701RM0140A NET ASSEMBLY SPK LHS A4000W NET ASSY 962 3720RCP742A PANEL AUDIO SPK LH A4000W...

Page 24: ...00C MOLD CASE REAR 757 6871RU0067A PWB PCB ASSEMBLY SUBSET AUDIO LHS A4000T C STANDARD 2P TERMI S AL LOCA NO PART NO DESCRIPTION SPECIFICATION REMARKS A80 6401RM0196A SPEAKER ASSEMBLY F30C D600 TOPTONE LHS A4000T S 850 3701RM0138A NET ASSEMBLY SPK LHS A4000T NET ASSY 851 3720RMF130A PANEL FRONT SPK LH A4000T MOLD PANEL FRONT 852 6400PKET01A SPEAKER FULLRANGE NL 40 13 KEP PIEZO 0OHM 0W 0DB 853 6400...

Page 25: ...TENNA RF FM ANT T15011N 1 KWANG SUNG LE 803B 3920RME174B PACKING SPK LHS A4000 0 MID PACKING 803C 3920RME174C PACKING SPK LHS A4000 0 BOT PACKING 808 534 008C BATTERY MANGANESE AAAM R03 SEOTONG 1 5 V 1PA 812 6611R2D001A PLUG ASSEMBLY 2WAY RED WHITE 3 0M AUDIO DOME 824 5010R L002B ANTENNA LOOP S0160BL 09 LS0160BL X000009 0 802 3890RCC171A BOX LHS A4000W ENG DW2 803A 3920RME174A PACKING SPK LHS A400...

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