Post on 06-Mar-2015
DIGITAL HOME CINEMASYSTEMSERVICE MANUALMODELS : LHS-A4000WA/LHS-A4000WD
LHS-A4000C/LHS-A4000T
MO
DE
LS
: LH
S-A
4000WA
/LH
S-A
4000WD
/LH
S-A
4000C/L
HS
-A4000T
SE
RV
ICE
MA
NU
AL
P/NO : 3829RGP019S JULY,2005
1-1
[CONTENTS]
SECTION 1.GENERAL• ESD PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .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
ESD PRECAUTIONS
1-21-2
Electrostatically Sensitive Devices (ESD)Some semiconductor (solid state) devices can be damaged easily by static electricity. Such componentscommonly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integratedcircuits and some field-effect transistors and semiconductor chip components. The following techniques shouldbe used to help reduce the incidence of component damage caused by static electricity.
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain offany electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear acommercially available discharging wrist strap device, which should be removed for potential shock reasonsprior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ESD devices, place the assembly on a conductive surfacesuch as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ESD devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" cangenerate electrical charges sufficient to damage ESD devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ESDdevices.
6. Do not remove a replacement ESD device from its protective package until immediately before you areready to install it. (Most replacement ESD devices are packaged with leads electrically shorted together byconductive foam, aluminum foil or comparable conductive materials).
7. Immediately before removing the protective material from the leads of a replacement ESD device, touch theprotective material to the chassis or circuit assembly into which the device will by installed.
CAUTION : BE SURE NO POWER IS APPLIED TO THE CHASSIS OR CIRCUIT, AND OBSERVE ALLOTHER SAFETY PRECAUTIONS.
8. Minimize bodily motions when handing unpackaged replacement ESD devices. (Otherwise harmless motionsuch as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generatestatic electricity sufficient to damage an ESD device).
CAUTION. GRAPHIC SYMBOLS
THE LIGHTNING FLASH WITH APROWHEAD SYMBOL. WITHIN AN EQUILATERAL TRIANGLE, ISINTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF UNINSULATED “DANGEROUS VOLTAGE” THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OFELECTRIC SHOCK.
THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICELITERATURE.
SECTION 1. GENERAL
1-3
SPECIFICATIONS
Power supply Refer to the main label
Power consumption 60 W
Mass 10 kg
External dimensions (W x H x D) 246 x 430 x 420 mm
Operating conditions Temperature: 5°C to 35°C, Operation status: Horizontal
Frequency response (audio) 120 Hz to 20 kHz
Signal-to-noise ratio (audio) More than 75 dB (1 kHz, NOP, W/IHF-A & 20 kHz Filter)
Harmonic distortion (audio) 1.0 % (1 kHz, at 12W position) (20 kHz LPF/A Filter)
Surround mode Front: 60W + 60W (THD 10 %)
Center*: 60W
Surround*: 60W + 60W (8Ω at 1 kHz, THD 10 %)
Subwoofer*: 120W (4Ω at 250 Hz, THD 10 %)
FM
Tuning Range 87.5 - 108.0 MHz or 65 - 74 MHz, 87.5 - 108.0 MHz
Intermediate 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 Way 1 Speaker
Impedance 8 Ω 8 Ω 4 Ω
Frequency Response 120 - 20,000 Hz 120 - 20,000 Hz 40 - 180 Hz
Sound Pressure Level 84 dB/W (1m) 84 dB/W (1m) 82 dB/W (1m)
Rated Input Power 60 W 60 W 120 W
Max. Input Power 120 W 120 W 240 W
Net Dimensions (W x H x D) 100 x 162 x 120 mm 225 x 102 x 120 mm 246 x 430 x 420 mm
Net Weight 0.8 kg 0.9 kg 10 kg
• Designs and specifications are subject to change without notice.
2-1
TROUBLESHOOTING GUIDE
"Hello"
SECTION 2. ELECTRICAL
2-2
• AUDIO µ-COM Circuit
TURN ON "Hello"? POWER Check or Press the ON KEY
2-3
• IC VOLTAGE SHEET
IC201(CS42516)PIN NO. Volt(V)
1. Power &Micom 2. DSP
IC801(PT6315)PIN NO. Volt(V)
5.VFD DRIVE
IC204,IC205(NJM4580M)PIN NO. Volt(V)
3. OP-AMP
IC202(CS493264)PIN NO. Volt(V)
IC501,IC502,IC503,IC504PIN NO. Volt(V)
IC700(LC87F57C8A)PIN NO. Volt(V)
IC301(PS9808)PIN NO. Volt(V)3610132229353942475665667280879194
1.8V1.8V3.3V1.8V3.3V3.3V1.8V3.3V1.8V3.3V3.3V3.3V1.8V3.3V1.8V3.3V1.8V3.3V
4. DAP
4712152122
93659
10-40V10-40V10-40V10-40V5V5V
4.9V4.96V4.876V
24 4.99V 48
-8.19V8.2V
1122334
2.41V2.41V2.41V2.387
1343
4.8V4.8V
2-4 2-5
WIRING DIAGRAM
PW901
CN801JK204
TUNER(TU201)
TUNINGDOWN
TUNINGUP
ST-BYON
VOLDOWN
MEMORY FUNCTION
VOLUP
CN902 CN703 CN205 CN501
PN701 PN703 PN205 PN501
2-6 2-7
BLOCK DIAGRAM
TUN
TUN
IC206
4052
IC504STA505
IC503STA515
IC501STA505
IC502STA505
22µH
22µH
22µH
IC301PS9818
2-8 2-9
SCHEMATIC DIAGRAMS1. AMP SCHEMATIC DIAGRAM
A B C D E F G H I J K L M N O P Q R S T
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
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
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
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
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
2-20 2-21
PRINTED CIRCUIT DIAGRAMS 1. MAIN P.C.BOARD (TOP VIEW)
2-22 2-23
1. MAIN P.C.BOARD (BOTTOM VIEW)
2-24 2-25
2. FRONT, JACK P.C.BOARD (TOP VIEW)
2-26 2-27
2. FRONT, JACK P.C.BOARD (BOTTOM VIEW)
2-28 2-29
3. SMPS P.C.BOARD
3-1 3-2
A90
961
960
958
959
953
951
950
952
954
955
957 962
300
826
956
A47W
A46W
A50W
TU201
S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS
LGEAP
DRAGON/LGESA/LGEES
A90 6401RM0198A SPEAKER ASSEMBLY F70C-D390 KEP LHS-A4000W SVC P
300 6410RKHV03A POWER CORD AU10S2 VOLEX SAA 1800MM GP390
300 6410RCHZ05C POWER CORD CE-503/KKJ-1004A(ST-HS:95MM)
826 6200JB8010K FILTER(CIRC),EMC ZCAT2132-1130-M-K TDK BK JACKE
950 3508RMP097A DECORATION LH-A4000W MOLD DECO FRONT
951 3790RCP660A WINDOW,DECO SPK LH-A4000W OTHER WINDOW FL
952 3720RMF129A PANEL,FRONT SPK LH-A4000W MOLD PANEL FRONT
953 4940RMV003A KNOB SPK LH-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 PRESS PANEL BACK
954 3091RMW133A CABINET ASSEMBLY SPK LHS-A4000W CABINET ASSY
957 3550RM0037A COVER SPK LH-A4000W MOLD COVER FRONT
A50W 6871R-6351B PWB(PCB) ASSEMBLY,TOTAL LH-A4000 FRONT+JACK TOTAL ASSY
A46W 6871R-6350A PWB(PCB) ASSEMBLY,TOTAL LH-A4000 AUDIO MAIN TOTAL ASSY
A47W 6871R-6420A PWB(PCB) ASSEMBLY,TOTAL LH-A4000 SMPS TOTAL ASSY FREE
•CABINET, MAIN FRAME AND AUDIO DECK SECTION
SECTION 3. EXPLODED VIEWS
3-3 3-4
•SPEAKER SECTION
757
756
755
A70
754
753
752
751
750
S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKSA70 6401RM0197A SPEAKER ASSEMBLY F30C-D600 TOPTONE LHS-A4000C S
750 3701RM0139A NET ASSEMBLY SPK LHS-A4000C NET ASSY
751 3720RMF131A PANEL,FRONT SPK LH-A4000C MOLD PANEL FRONT
752 6400PKET01A SPEAKER,FULLRANGE NL 40-13 KEP PIEZO 0OHM 0W 0DB
753 6400FTTC08A SPEAKER,FULLRANGE F30C-D600 TOPTONE FULL-RANGE(H
754 4930RM0060A HOLDER SPK LHS-A4000T/C MOLD PREVENT
755 3610RM0058A FOOT SPK LHS-A4000T/C OTHER PHI 10X
756 3110RMP084A CASE LH-A4000C MOLD CASE REAR
757 6871RU0067A PWB(PCB) ASSEMBLY,SUBSET(AUDIO LHS-A4000T/C STANDARD 2P TERMI
S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKSA80 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 6400FTTC08A SPEAKER,FULLRANGE F30C-D600 TOPTONE FULL-RANGE(H
854 4930RM0060A HOLDER SPK LHS-A4000T/C MOLD PREVENT
855 3610RM0058A FOOT SPK LHS-A4000T/C OTHER PHI 10X
856 3110RMP083A CASE LH-A4000T MOLD CASE REAR
857 6871RU0067A PWB(PCB) ASSEMBLY,SUBSET(AUDIO LHS-A4000T/C STANDARD 2P TERMI
• MODEL: LHS-A4000C
857
856
855
854852
853
851
850
A80
• MODEL: LHS-A4000T
3-5 3-6
• PACKING ACCESSORY SECTION
BATTERY
INSTRUCTION ASSEMBLY
BOX
REMOCON
ANTENNA LOOP(AM)
PLUG ASS’Y 2WAY
PACKING, CASING
PACKING, CASING
PACKING, CASING
812
824
801
802
808
ANTENNA (FM)825
900
803A
803B
803C
S AL LOCA. NO. PART NO. DESCRIPTION SPECIFICATION REMARKS801 3835RP0111C INSTRUCTION ASSEMBLY SPK LHS-A4000WA.NA2ALLP LGEAP LGEAP
LGESA
LGEES
DRAGON
LGEAP/RAGON/LGESA
LGEES
LGEES
LGEAP/RAGON/LGESA
801
801
801
3835RP0111D INSTRUCTION ASSEMBLY SPK LHS-A4000WA.NA2ALLP LGESA
3835RP0111E INSTRUCTION ASSEMBLY SPK LHS-A4000WA.NA6SLLP LGEES
3835RP0111F INSTRUCTION ASSEMBLY SPK LHS-A4000WA.NA7MDLP DRAGON
825 5010R-D002A ANTENNA,LEAD FM ANT FIA-101C KWANG SUNG L=1
825 5010R-D004A ANTENNA,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-A4000 0 TOP PACKING
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
825 5010R-D004A ANTENNA,RF FM ANT T15011N-1 KWANG SUNG LE
900 6710CAAK01A REMOTE CONTROLLER KIE 57KEY KIE LH-A4000 LG
900 6710CAAK01B REMOTE CONTROLLER KIE 57KEY KIE LH-A4000 LG WITH