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SERVICE MANUAL MODEL: LH-T6740 LH-T6740A LHS-T6740C, LHS-T6740T, LHS-T6740W
DVD/CD RECEIVER
SERVICE MANUAL
CD-R/RW
P/N : 3829RDT050K
NOVEMBER, 2005
MODEL: LH-T6740 LH-T6740A LHS-T6740C, LHS-T6740T, LHS-T6740W
[CONTENTS]
SECTION 1.GENERAL
· SERVICING PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 · ESD PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 · SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
SECTION 2. AUDIO PART
· ELECTRICAL TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 · BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 · SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 · WIRNG DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21 · PRINTED CIRCUIT DIARGAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
SECTION 3.DVD PART
· DVD PART ELECTRICAL TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1 · DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING . . . . . . . . . . . . . . . . .3-8
· BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21 · DVD PART SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-25
SECTION 4. EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1 SECTION 5. SPEAKER PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1 SECTION 6. REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
- 1-1 -
SECTION 1. GENERAL
SERVICING PRECAUTIONS
NOTES REGARDING HANDLING OF THE PICK-UP
1. Notes for transport and storage
1) The pick-up should always be left in its conductive bag until immediately prior to use. 2) The pick-up should never be subjected to external pressure or impact.
Storage in conductive bag
Drop impact
2. Repair notes
1) The pick-up incorporates a strong magnet, and so should never be brought close to magnetic materials. 2) The pick-up should always be handled correctly and carefully, taking care to avoid external pressure and impact. If it is subjected to strong pressure or impact, the result may be an operational malfunction and/or damage to the printed-circuit board. 3) Each and every pick-up is already individually adjusted to a high degree of precision, and for that reason the adjustment point and installation screws should absolutely never be touched. 4) Laser beams may damage 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.
NEVER look directly at the laser beam, and don't let contact fingers or other exposed skin.
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 should be used, taking care not to distort this.
Pressure Magnet
Pressure
How to hold the pick-up Cotton swab
Conductive Sheet
6) Never attempt to disassemble the pick-up. Spring by excess pressure. If the lens is extremely dirty, apply isopropyl alcohol to the cotton swab. (Do not use any other liquid cleaners, because they will damage the lens.) Take care not to use too much of this alcohol on the swab, and do not allow the alcohol to get inside the pick-up.
- 1-2 -
NOTES REGARDING COMPACT DISC PLAYER REPAIRS
1. Preparations
1) Compact disc players incorporate a great many ICs as well as the pick-up (laser diode). These components are sensitive to, and easily affected by, static electricity. If such static electricity is high voltage, components can be damaged, and for that reason components should be handled with care. 2) The pick-up is composed of many optical components and other high-precision components. Care must be taken, therefore, to avoid repair or storage where the temperature of humidity is high, where strong magnetism is present, or where there is excessive dust.
2. Notes for repair
1) Before replacing 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 leakage, the metal part of the soldering iron should be grounded. 5) Workers should be grounded by an armband (1M ) 6) Care should be taken not to permit the laser pick-up to come in contact with clothing, in order to prevent static electricity changes in the clothing to escape from the armband. 7) The laser beam from the pick-up should NEVER be directly facing the eyes or bare skin. Armband
Resistor (1 Mohm) Resistor (1 Mohm) Conductive Sheet
- 1-3 -
ESD PRECAUTIONS
Electrostatically Sensitive Devices (ESD)
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integrated circuits and some field-effect transistors and semiconductor chip components. The following techniques should be 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 off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed for potential shock reasons prior to applying power to the unit under test. 2. After removing an electrical assembly equipped with ESD devices, place the assembly on a conductive surface such 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" can generate electrical charges 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 conductive materials). 7. Immediately before removing the protective material from the leads of a replacement ESD device, touch the protective 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 ALL OTHER SAFETY PRECAUTIONS. 8. Minimize bodily motions when handing unpackaged replacement ESD devices. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ESD device).
CAUTION. GRAPHIC SYMBOLS
THE LIGHTNING FLASH WITH APROWHEAD SYMBOL. WITHIN AN EQUILATERAL TRIANGLE, IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF UNINSULATED "DANGEROUS VOLTAGE" THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK.
THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE.
- 1-4 -
SPECIFICATIONS
- 1-5 -
MEMO
- 1-6 -
SECTION 2. AUDIO PART
ELECTRICAL TROUBLESHOOTING GUIDE
1. Power check flow
INSERT POWER CORD.
TURN ON THE RED LED?
NO
CHECK POWER PLUG AND POWER SUPPLY CIRCUIT .
YES
TURN POWER ON.
IS POWER ON?
NO
CHECK POWER SUPPLY CIRCUIT .
YES
DOES INITIAL READ WORK?
NO
CHECK LASER CIRCUIT .
YES
CHECK FOCUS CIRCUIT.
CHECK DISC.
DOES IT PLAY?
NO
CHECK TRACKING SERVO CIRCUIT.
YES
DOES IT OUTPUT AUDIO?
NO
CHECK AUDIO CIRCUIT.
YES
OK
- 2-1 -
2.AUDIO µ.COM CIRCUIT
POWER ON
Does CD/DVD appear at FLD?
Does AV 1/2, TV, AUDIO, OPTICAL IN, COAXIAL IN, FM87.5 appear at FLD?
OK.
Does LOADING appear at FLD?
Does it appear DVD Error at FLD?
Does no Disc or Time appear at FLD?
Check Connector(PN902)if is normally.
Reconnet it.
Check if DVD an Audio Micom Interface is OK.
Check power part of Main B/D.
Refer to SMPS
Check power.
Check oscillator of x101.
Refer to oscillator Circuit.
Check DVD Module.
Check if IC101 PIN1 is High.
Check DVD Reset Waveform.
Check SMPS. Check if IC101 PIN11 is High. Check IC101 Reset Wavefrom.
Check if IC101 PIN 17, 46, 72, 90 is high (5V).
Check 5V line.
Check if IC101 PIN26 is High.
Check Power dection Circuit.
Replace IC101.
- 2-2 -
3.FRONT CIRCUIT (1/2)
- 2-3 -
4.FRONT CIRCUIT (2/2)
- 2-4 -
BLOCK DIAGRAM
2-5
2-6
SCHEMATIC DIAGRAMS
· FRONT SCHEMATIC DIAGRAM
2-7
2-8
· MICOM SCHEMATIC DIAGRAM
2-9
2-10
· I//O SCHEMATIC DIAGRAM
2-11
2-12
· DSP SCHEMATIC DIAGRAM
2-13
2-14
· AMP SCHEMATIC DIAGRAM
2-15
2-16
· SMPS-WIDE SCHEMATIC DIAGRAM
2-17
2-18
· POWER SCHEMATIC DIAGRAM
2-19
2-20
WIRING DIAGRAMS
2-21
2-22
PRINTED CIRCUIT DIAGRAMS
· MAIN P.C. BOARD (COMPONENT SIDE)
2-23
2-24
· MAIN P.C. BOARD (SOLDER SIDE)
2-25
2-26
· FRONT P.C.BOARD (SOLDER SIDE)
· FRONT P.C.BOARD (COMPONENT SIDE)
2-27
2-28
· POWER P.C.BOARD
2-29
2-30
MEMO
MEMO
2-31
2-32
SECTION 3. DVD PART
ELECTRICAL TROUBLESHOOTING GUIDE
1. Power check flow
- 3-1 -
2. System operation flow
Power On
1. 8032 initializes SERVO, DSP & RISC registers 2. Write RISC code to SDRAM 3. Reset RISC
Show LOGO
Tray Closed? YES NO Tray Close to Closed position
SLED at Inner Side ? NO SLED Moves to Inner Positi on YES
1. Judge whether have disc and disc type 2. Jump to related disc reading procedure
Reci eve OPEN/CLOSE Key? NO 1. Execute Pressed Key & IR Key 2. System operation Routine Loop YES
YES
1. Stop Playback & Open Tray 2. Display tray open message & LOGO NO Receive CLOSE Key?
- 3-2 -
3. Test & debug flow
TEST
Check the AC Voltage Power PCBA(110V or 220V)
NO
Replace power PCBA or AC transformer.
YES
Switch on the Power PCBA
Is the DC Voltage outputs OK? (5V,1.8V,3.3V,8V,12V)
NO
Repair or Replace Power PCBA
YES
Make sure the main PCBA don't short on VCCs and switch it on.
Is 3.3V and 1.8V DC outputs normal on main PCBA?
NO
Check the regulators or related diodes.
YES
Connect to PC RS232 Cable and update the FLASH memory code.
1. Check 27MHz system clock. Update FLASH successfully? NO 2. Check system reset circuit. 3. Check FLASH R/W enable signal PRD,RWR. 4. Check RS232 SIGNALS. 5. Check FLASH Memory related circuit. YES
A
- 3-3 -
A
RESET or Power On.
Show LOGO?
NO
Flash Memory operates properly? YES
NO
Check connection lines between FLASH & MT1389 and the FLASH access time whether is suitable or not.
YES
SDRAM works properly?
NO
Check connection lines between SDRAM & MT1389 and the SDRAM is damaged.
YES
MT1389 VIDEO outputs properly? YES
NO
Check the related circuit of MT1389.
Have TV signal output?
NO
Check the filtering and amp circuit of TV signal.
YES
Check AV cable connection to TV set.
Does Tray move inside when it is not at closed position? YES
NO
Normal TROUT & TRIN signals?
NO
Check the load OPEN & CLOSE switch
YES
Normal TRCLOSE & TROPEN signal? YES
NO
Check the Tray control IO pins on MT1389 & IP4504.
Normal LOAD+ & LOADsignal?
NO
Check the Tray control amplifying circuit on Motor driver.
YES
B
Check the cable connection between main PCBA and loader.
- 3-4 -
B
Does the SLED move to inner side when it is at outter position? YES
NO
Motor Driver STBY Pin is High?
NO
Check the connection line of STBY signal.
YES
Is FMSO DC Level higher than 1.4V? YES
NO
Check the related circuit of FMSO.
SL+ and SL- output properly?
NO
Check the amp circuit on motor driver.
YES
Do not put in disc and tray close.
Check the cable connection with MECHA.
Optical Lens has movements for searching Focus? YES
NO
Proper FOSO outputs to motor driver?
NO
Check FOSO connection on MT1389 and motor dirver.
YES
Proper F+ & F- outputs?
NO
Check the amp circuit on motor dirver.
YES
C
Check cable connect on with pick-up head.
- 3-5 -
C
Laser turns on when reading disc?
NO
LD01 or LD02 output properly? YES
NO
Check the laser power circuit on MT1336 and connecting to power transistor.
YES
Collector voltage of power transistor is OK?
NO
Check the related circuit on laser power transistor
YES Check cable connection between transistor ouput and pick-up head.
Put disc in?
NO
Laser off
YES
NO Disc ID is correct?
Proper RFL signal on MT1389?
NO
Check the related circuit on MT1389 RFL signal.
YES YES
Check LDO1 & LDO2 signal
Does spindle rotate?
NO
Proper DMSO signal on MT1389
NO
Check DMSO related circuit on MT1389.
YES Check the spindle control amp circuit of motor driver.
SP+ & SP- output properly?
NO
YES
YES Check the cable connection between spindle and main PCBA.
D
- 3-6 -
D YES
Focus ON OK?
NO
Proper signals on A,B,C,D of MT1389 YES
NO
Check connections between MT1389 and pick-up head.
YES
Check FEO signal on MT1389 YES
NO
Check the FOSO connection on MT1389 and motor driver.
Check FOSO signal on MT1389
Track On OK?
NO
Normal TEO Signal on MT1389? YES
NO
Check the related circuit on MT1389
YES
Properly TRSO signal on MT1389? YES
NO
Check the TRSO connection on MT1389 and motor dirver.
T+ & T- output properly?
NO
Check the tracking control amp circuit on motor driver.
YES
Check cable connection on pick-up head.
Disc is play ?
NO
Check RFO & RFLVL signal waveform.
YES
E
- 3-7 -
E
Normal Audio output when disc playback?
NO
Audio PWM IC received correct data stream?
NO
Check connection between MT1379 & Audio PWM IC.
YES
YES
Normal Audio PWM IC out? YES
NO
Check the related circuit of Audio PWM IC.
Check Audio filter,amplify,mute circuit.
Normal IR.VFD & Front pannel key functions?
NO
NO Communications between IR.VFD Front pannel ey &MT1389 k is n orma lly?
Check communication lines on MT1389.
YES
YES
TEST END
Check the cable connection on Front pannel.
- 3-8 -
DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING
1. SYSTEM 27MHz CLOCK,RESET,FLASH R/W SIGNAL
1) MT1379 main clock is at 27MHz(X501)
FIG 1-1
2) MT1336 reset is high active
FIG 1-2
- 3-9 -
3) RS232 waveform during procedure(Downloading)
FIG 1-3
4) Flash R/W enable signal during download(Downloading)
FIG 1-4
- 3-10 -
2. SDRAM CLOCK
1) MT1379 main clock is at 27MHz(X501)
FIG 2-1
3. TRAY OPEN/CLOSE SIGNAL
FIG 3-1
- 3-11 -
4. SLED CONTROL RELATED SIGNAL (NO DISC CONDITION)
FIG 4-1
5. LENS CONTROL RELATED SIGNAL(NO DISC CONDITION)
FIG 5-1
- 3-12 -
6. LASER POWER CONTROL RELATED SIGNAL (NO DISC CONDITION)
FIG 6-1
7. DISC TYPE JUDGEMENT W VEFORM
FIG 7-1
- 3-13 -
FIG 7-2 (DVD)
FIG 7-3 (CD)
- 3-14 -
FIG 7-4 (CD)
8. FOCUS ON W VEFORM
FIG 8-1 (DVD)
- 3-15 -
FIG 8-2 (CD)
9. SPINDLE CONTROL W VEFORM (NO DISC CONDITION)
FIG 9-1
- 3-16 -
10. TRACKING CONTROL RELATED SIGNAL(System checking)
FIG 10-1 (DVD)
FIG 10-2 (CD)
- 3-17 -
11. MT1389 AUDIO OPTICAL AND COAXIAL INPUT (SPDIF)
FIG 11-1 (DVD)
12. MT1389 VIDEO OUTPUT WAVEFORM
1)100%
FIG 12-1
- 3-18 -
2) COMPOSITE VIDEO SIGNAL
FIG 12-2
13. MT1389 AUDIO OUTPUT TO PWM IC
ADAT0~3
FIG 13-1
- 3-19 -
14. AUDIO OUTPUT FROM PWM IC
FIG 14-1
- 3-20 -
DISC
VD33D VD33D
SPINDLE MOTOR
MD[00:15] ROMAD[0: 19] ROMRD ROMWR ROMDATA[0:7] RS232_RXD
M
PICK UP
DVD : A,B,C,D,RF0 CD : A,B,C,D,E,F,RF0 CDMDI,DVDMDI
IC602 MX29LV160T 2/4M 16/32BIT FLASH ROM CN601 RS232 Download
IC603 4M 16BIT 4Bank SDRAM
LOADING SLED MOTOR(FEEDING) MOTOR VD18/VD33
IIC/VFD/DAC_SCK IIC/VFD/DAC_TXD OPU_SEL
CD_DVD, VR_CD,VR_DVD
CDLD,DVDLD,SVREF21
DECK MECHANISM
BLOCK DIAGRAM
1. Overall Block Diagram
M
CD_DVD_CT
M
Pick-up
MA[00:11] DMCLK CSJ BA0 BA1 DQM WEJ CASJ RASJ
VD33D
IC606 KS24C02 EEPROM
DAC_RST
SLED[+,-]
LOAD[+,-]
SPINDLE[+,-]
FOCUS[+,-] TRACK[+,-]
XSFGN,XSFGP
HOMESW
IC601 MTK MT1389
SER[0:2],DAC_ML1
3V3M
INSW,OUTSW
27MHz
M-RESET
YC_MIX
VF-
TV_DAC[0:3]
VF+
VFD_RXD S_REQ
PWRCTL
IECDAOUT
- 3-21 M_REQ
5V/8V
IC301 PS9818 (PWM IC)
RS232_TXD
OPEN,CLOSE,SLEGP,SPINDLE,FOCUS,TRACK,SVREF
RF+ MPEG IC
D2_T[1:3] SCART_16:9 RGB_SEL
IC201 IP4504 Motor Drive
DRVSB
FL RL CENTER FR RR WOOFER
5.2VA
-27VA
VIDEO_SW
DMUTE
5.2VA 5V +12V
5V
AC 90V~240V 50HZ/60Hz U7
VD33,VD33D 3V3M VD18
12V
-27VA/VF+/VFDIG901 FLD DISPLAY
POWER BOARD
KEY Input
3.3V-M1
IC101 AUDIO MICOM
IC903 RESET IC RC901 R/C
TRIGGER
IC605 MM1623XFBE VIDEO BUFFER
CVBS R/Pr G/Y B/Pb Y C 6MHz COAXIAL SPDIF
+12V IC701~4 DIGITAL POWER IC
FL RL CENTER FR RR WOOFER
3.3V
3.3V-M
8V
JACK
X501
27MHz X-TAL
ALPC
AD[0:7]
LD0 1, LDO 2, IOA MDI 1
A[0:20]
FLASH ROM
PRD#, PWR# PCE#
2. SERVO Block Diagram
PICK UP
V20, PICKSEL DVD: A,B,C,D, RFO CD: A,B,C,D, E, F,RFO
IC601 MT1389 DVDPLAYER ONE CHIP
SCL, SDA
EEP ROM
RXD, TXD
RS232C(MTK)
DQ[0:15]
- 3-22 LIMIT,TRIN,TROUT F+, F-, T+, TADIN SP+, SPSL+, SLLOAD+, LOAD-
MA[0:11] DQM0 ,DQM1 WE#,CAS#,RAS# CS#,BA0,BA1 SDCLK SDCKE
M/D
IC201 IP4504 Motor Driver
IC603 4M x 16bit SDRAM
FOSO,TRSO,FMSO DMSO,,TROPEN TRCLOSE STBY,V1P4
IC603 SDRAM 64M
DQM0,DQM1
DQ[0:15]
DCLK,WE,CAS,RAS CS,DCKE,MA[0:10]
SCL,SDA
IC606 EEPROM
Y2(Y),Y3(Color) Y4(Y),Y5(Cb),Y6(Cr) ASPECT(16:9)
VIDEO Interface
3. MPEG & MEMORY Block Diagram
URST,S_REQ VFD_RXD
VFD_SCK VFD_TXD M_REQ
PWR,PCE,PRD
A[0:20]
X501 27MHz
AUDIO MICOM
SCKO,TXDO,M-REQ
IC602 FLASH MEMORY (16 M )
AD[0:7]
- 3-23 -
IC601 (MPEG + DSP + RF) MT1389
ACLK,ALRCK,ABCK MUTE,VSCK,VSDA ASDTA[0:3] ASTB,SCL,SDA ASPDIF
AUDIO Interface
CVBS
(R.G.B) / (Y.Pb.Pr ) IC605 VIDEO 6dB Amp
COMPONENT (R.G.B) / (Y.Pb.Pr ) SUPER VIDEO (Y/C)
MPEG
(Y/C)
A/V JACK
AUDIO L AUDIO R
DAC RESET
MPEG
ACLK
IC602 (OP Amp) LPF&Buffer
SCL
IC601 AUDIO DAC (2CH)
SDA
ADATA3
4. VIDEO & AUDIO Block Diagram
- 3-24 -
5.1CH BOARD
FRONT R REAR R
DAC RESET
IC701 Digital POWER IC IC301 AUDIO DAC (5.1CH)
ACLK
SCL
MPEG
SDA
FRONT L
ADATA1
IC303 Digital POWER IC
REAR L
ADATA2
ADATA3
CENTER
IC304 Digital POWER IC
WOOFER
DVD PART SCHEMATIC DIAGRAMS
· MPEG SCHEMATIC DIAGRAM
3-25
3-26
· SERVO SCHEMATIC DIAGRAM
3-27
3-28
SECTION 4. EXPLODED VIEWS
· CABINET AND MAIN FRAME SECTION
NOTE) Refer to "SECTION 6 REPLACEMENT PARTS LIST" in order to look for the part number of each part.
452
A50 285 452 A43 A43A 280 463 284
282 288 283 281 TU10 1 463 A46 322 463 463 250
463 A26 A47 305 263 262 452
A44
260 261
4-1
4-2
· DECK MECHANISM EXPLODED VIEW
A26 001 002 439 018 014 013 020 017 003 A01
A02
017 435 015 019 015B 015A 016 440 432 012 030 012A 032
LOCA. NO. A26 A01 A02 A03 001 002 003 010 012 LG PART NO. 6721RJ0871A 4861R-0016B 3041R-T001A 3041R-T001E 3300R-0547A 5016H-1016B 4860R-0021A 6850R-JW16B 5040R-0083A 5040R-0110A 4400R-0006B 4470R-0154A 4681R-A015A 4680R-E008A 4560R-0008A 6871R-9294A 4470R-0176A 4974R-0067A 3210R-M008A 3040R-M066A 4681R-B009B 4470R-0179A 4470R-0178A 3390R-0033A 4470R-0180A 6871R-9295B 6850R-GK22Y 4370R-0136A 1SZZR-0064B 1SZZR-0062A 1SZZR-0072A 1SZZR-0011A 1SZZR-0011A 1SZZR-0075A 1SZZR-0075A 1SZZH-1007B DESCRIPTION DECK ASSEMBLY,AUDIO CLAMP ASSEMBLY BASE ASSEMBLY BASE ASSEMBLY PLATE MAGNET CLAMP CABLE,FLAT RUBBER RUBBER BELT GEAR MOTOR ASSEMBLY MOTOR(MECH) PULLEY PWB(PCB) ASSEMBLY,TOTAL GEAR GUIDE FRAME BASE MOTOR ASSEMBLY GEAR GEAR TRAY GEAR PWB(PCB) ASSEMBLY,TOTAL CABLE,FLAT SHAFT SCREW,DRAWING SCREW,DRAWING SCREW,DRAWING SCREW,DRAWING SCREW,DRAWING SCREW,DRAWING SCREW,DRAWING "SCREW,DRAWING" NSP : Non SVC Parts SPECIFICATION HOME THEATER DP-9T(HZ) -MTK138 DISC DP7 - SH MAIN DP-9T-ESS SLED DP-9T(HZ) -MTK1389 -SAMS CLAMP CLAMP(LDM-R608,10*5,1*1.5T) UPPER DP7 P=1.0 FFC UL2896(0.035X0.7) 23 DVD DP-6, DP-8 FRONT RIGHT 20 DVD REAR DP8 RIGHT 20 OTHER BL DECK/MECHA DP2-5, DP7C,DP7A OT DECK/MECHA DP8 PULLEY MOLD DECK/MECHA LOADING DP-9 SH FEEDING RF-300EA-1D390 MABUCHI MOTOR DP-9C LOADING DVD DP-9 LOADING MOLD DVD DP-9C UP/DOWN MOLD DP-9C UP/DOWN MOLD MAIN DP-9T MOLD DECK/MECHA DP9 FEEDING DVD DP-9 PINION MOLD DVD DP-9 MIDDLE MOLD DVD DP-9T(9T-SLIM) DISK MOLD DVD DP-9 RACK MOLD DP-9T FEEDING P=1.0 FFC UL2896(0.05X0.65) 11 DVD PU, DR-02 SUS-420J2 OTHER + 1 D1.7 L7.0 SWCH18A/BZN DP8 + 1 D1.7 L4.5 SWCH18A/NI DP8 P + 1 D1.7 L4.5 SWRCH18A/FZY DP8 MACHINE MACHINE + 1 D1.7 L10.0 SWRCH18A/FZW DP + 1 D1.7 L10.0 SWRCH18A/FZW DP + D2.0 6MM SWRCH16A/ZNBK 4MM 1 NSP NSP NSP NSP REMARKS
026
012A 013 014 015 015A 015B 016 017 018 019 020 021 024 025 026 030 035
010 024 025 036 431 435
012A
A03
021 430 035A
035A 036 430 431 432 435 435
035 439
439 439 440
4-3
4-4
SECTION 5. SPEAKER PART
MODEL: LHS-T6740W
658 654 659
657
651
656 655
656
655 656
650
653
652
- 5-1 -
MODEL: LHS-T6740C
755 756
757 752 753 754
755 752 759 751 750 758
- 5-2 -
MODEL: LHS-T6740T
859 851 860
868
863
853
856 862 864
854
855 861
852 850
867 853 865
857 866 858
- 5-3 -
MEMO
- 5-4 -