LG LH-W6200 Manual
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LG LH-W6200 Manual

LG LH-W6200 Manual

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❍ 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
• BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21
• DVD PART SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-25
❍ SECTION 4. EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
❍ SECTION 5. REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
❍ SECTION 6. SPEAKER PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
• BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
• SHEMATICDIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
• WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9
• PRINTED CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-11
• SPEAKER EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17
• REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-25
[CONTENTS]
- 1-1 -
. . . . . . . . . . . . . . . . .3-8

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Summary of Contents for LG LH-W6200

  • Page 1 [CONTENTS] ❍ SECTION 1.GENERAL • SERVICING PRECAUTIONS ..........1-2 •...

  • Page 2: Section 1. General

    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.

  • Page 3: Notes Regarding Compact Disc Player Repairs

    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.
  • Page 4 ❏ 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.
  • Page 5 ❏ SPECIFICATIONS Front Speaker Center Speaker Subwoofer Wireless Speaker 2 Way 3 Speaker 2 Way 3 Speaker 1 Way 1 Speaker 2 Way 3 Speaker 8Ω 8Ω 4Ω 8Ω 150 - 20000Hz 150 - 20000Hz 55 - 150Hz 150 - 20000Hz 85dB/W(1m) 85dB/W(1m) 82dB/W(1m)
  • Page 6 MEMO - 1-6 -...

  • Page 7: Section 2. Audio Part

    SECTION 2. AUDIO PART ❏ ELECTRICAL TROUBLESHOOTING GUIDE 1. Power check flow INSERT POWER CORD. TURN ON CHECK POWER PLUG THE RED LED? AND POWER SUPPLY CIRCUIT . TURN POWER ON. IS POWER ON? CHECK POWER SUPPLY CIRCUIT . DOES INITIAL CHECK LASER CIRCUIT .
  • Page 8 2.AUDIO µ.COM CIRCUIT POWER ON Does AV 1/2, TV, AUDIO, Does CD/DVD OPTICAL IN, COAXIAL IN, FM87.5 appear at FLD? appear at FLD? Does it appear Does LOADING DVD Error at appear at FLD? FLD? Check Does no Disc or Connector(PN902)if Reconnet it.
  • Page 9 3.FRONT CIRCUIT (1/2) - 2-3 -...
  • Page 10 4.FRONT CIRCUIT (2/2) - 2-4 -...
  • Page 11 ❏ BLOCK DIAGRAM FL– ADPT 7V ADPT GND P-SENS 5.6V CPU +5VF START +12VF +3.3V...

  • Page 12: Front Schematic Diagram

    ❏ SCHEMATIC DIAGRAMS • FRONT SCHEMATIC DIAGRAM...
  • Page 13 • MICOM SCHEMATIC DIAGRAM 2-10...

  • Page 14: I//O Schematic Diagram

    • I//O SCHEMATIC DIAGRAM 2-11 2-12...

  • Page 15: Dsp Schematic Diagram

    • DSP SCHEMATIC DIAGRAM 2-13 2-14...

  • Page 16: Amp Schematic Diagram

    • AMP SCHEMATIC DIAGRAM 2-15 2-16...
  • Page 17 • SMPS-WIDE SCHEMATIC DIAGRAM 2-17 2-18...

  • Page 18: Power Schematic Diagram

    • POWER SCHEMATIC DIAGRAM 2-19 2-20...
  • Page 19 ❏ WIRING DIAGRAMS 2-21 2-22...
  • Page 20 ❏ PRINTED CIRCUIT DIAGRAMS • MAIN P.C. BOARD (COMPONENT SIDE) 2-23 2-24...
  • Page 21 • MAIN P.C. BOARD (SOLDER SIDE) 2-25 2-26...
  • Page 22 • FRONT P.C.BOARD (SOLDER SIDE) • FRONT P.C.BOARD (COMPONENT SIDE) 2-27 2-28...

  • Page 23: Power P.c.board

    • POWER P.C.BOARD 2-29 2-30...
  • Page 24 MEMO MEMO 2-31 2-32...

  • Page 25: Section 3. Dvd Part

    SECTION 3. DVD PART ❏ ELECTRICAL TROUBLESHOOTING GUIDE 1. Power check flow - 3-1 -...
  • Page 26 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? Tray Close to Closed position SLED at Inner Side ? SLED Moves to Inner Positi on 1.
  • Page 27 3. Test & debug flow TEST Check the AC Voltage Replace power PCBA or Power PCBA(110V or 220V) AC transformer. Switch on the Power PCBA Is the DC Voltage Repair or Replace Power PCBA outputs OK? (5V,1.8V,3.3V,8V,12V) Make sure the main PCBA don't short on VCCs and switch it on.
  • Page 28 RESET or Power On. Check connection lines between FLASH Flash Memory operates & MT1389 and the FLASH access time Show LOGO? properly? whether is suitable or not. Check connection lines between SDRAM works properly? SDRAM & MT1389 and the SDRAM is damaged.
  • Page 29 Does the SLED move Motor Driver STBY Check the connection line of to inner side when it is at Pin is High? STBY signal. outter position? Is FMSO DC Level higher Check the related circuit of than 1.4V? FMSO. SL+ and SL- output Check the amp circuit on motor properly? driver.
  • Page 30 Check the laser power circuit Laser turns on when LD01 or LD02 output on MT1336 and connecting to reading disc? properly? power transistor. Collector voltage of Check the related circuit on power transistor is OK? laser power transistor Check cable connection between transistor ouput and pick-up head.
  • Page 31 Proper signals on Check connections between Focus ON OK? A,B,C,D of MT1389 MT1389 and pick-up head. Check the FOSO connection on Check FEO signal MT1389 and motor driver. on MT1389 Check FOSO signal on MT1389 Check the related Normal TEO Signal on Track On OK? circuit on MT1389 MT1389?
  • Page 32 Normal Audio output Audio PWM IC received Check connection between MT1379 when disc playback? correct data stream? & Audio PWM IC. Check the related Normal Audio PWM IC circuit of Audio PWM IC. out? Check Audio filter,amplify,mute circuit. Communications between Normal IR.VFD &...

  • Page 33: System 27Mhz Clock,Reset,Flash R/W Signal

    ❏ 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 -...
  • Page 34 3) RS232 waveform during procedure(Downloading) FIG 1-3 4) Flash R/W enable signal during download(Downloading) FIG 1-4 - 3-10 -...

  • Page 35: Sdram Clock

    2. SDRAM CLOCK 1) MT1379 main clock is at 27MHz(X501) FIG 2-1 3. TRAY OPEN/CLOSE SIGNAL FIG 3-1 - 3-11 -...

  • Page 36: Sled Control Related Signal (No Disc Condition)

    4. SLED CONTROL RELATED SIGNAL (NO DISC CONDITION) FIG 4-1 5. LENS CONTROL RELATED SIGNAL(NO DISC CONDITION) FIG 5-1 - 3-12 -...
  • Page 37 6. LASER POWER CONTROL RELATED SIGNAL (NO DISC CONDITION) FIG 6-1 7. DISC TYPE JUDGEMENT W VEFORM FIG 7-1 - 3-13 -...
  • Page 38 FIG 7-2 (DVD) FIG 7-3 (CD) - 3-14 -...
  • Page 39 FIG 7-4 (CD) 8. FOCUS ON W VEFORM FIG 8-1 (DVD) - 3-15 -...
  • Page 40 FIG 8-2 (CD) 9. SPINDLE CONTROL W VEFORM (NO DISC CONDITION) FIG 9-1 - 3-16 -...

  • Page 41: Tracking Control Related Signal(System Checking)

    10. TRACKING CONTROL RELATED SIGNAL(System checking) FIG 10-1 (DVD) FIG 10-2 (CD) - 3-17 -...

  • Page 42: Mt1389 Video Output Waveform

    11. MT1389 AUDIO OPTICAL AND COAXIAL INPUT (SPDIF) FIG 11-1 (DVD) 12. MT1389 VIDEO OUTPUT WAVEFORM 1)100% FIG 12-1 - 3-18 -...

  • Page 43: Composite Video Signal

    2) COMPOSITE VIDEO SIGNAL FIG 12-2 13. MT1389 AUDIO OUTPUT TO PWM IC ADAT0~3 FIG 13-1 - 3-19 -...
  • Page 44 14. AUDIO OUTPUT FROM PWM IC FIG 14-1 - 3-20 -...
  • Page 45 ❏ BLOCK DIAGRAM 1. Overall Block Diagram CVBS - 3-21 -...
  • Page 46 2. SERVO Block Diagram - 3-22 -...

  • Page 47: Mpeg & Memory Block Diagram

    3. MPEG & MEMORY Block Diagram - 3-23 -...

  • Page 48: Video & Audio Block Diagram

    4. VIDEO & AUDIO Block Diagram - 3-24 -...
  • Page 49 ❏ DVD PART SCHEMATIC DIAGRAMS • MPEG SCHEMATIC DIAGRAM 3-25 3-26...

  • Page 50: Servo Schematic Diagram

    • SERVO SCHEMATIC DIAGRAM 3-27 3-28...

  • Page 51: Section 4. Exploded Views

    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.

  • Page 52: Deck Mechanism Exploded View

    • DECK MECHANISM EXPLODED VIEW...

  • Page 53: Section 6. Speaker Part

    SECTION 6. SPEAKER PART ❏ BLOCK DIAGRAM...
  • Page 54 ❏ SHEMATIC DIAGRAMS • SCHEMATIC DIAGRAM (ACC-W6200)
  • Page 55 • SCHEMATIC DIAGRAM (LHS-W6200SL/SR)

  • Page 56: Smps Schematic Diagram

    • SMPS SCHEMATIC DIAGRAM...
  • Page 57 ❏ WIRING DIAGRAM 6-10...
  • Page 58 ❏ PRINTED CIRCUIT DIAGRAM • ACC-W6200 P.C. BOARD 6-11 6-12...

  • Page 59: Main P.c.board

    • MAIN P.C. BOARD 6-13 6-14...

  • Page 60: Smps P.c. Board

    • SMPS P.C. BOARD 6-15 6-16...
  • Page 61 ❏ SPEAKER EXPLODED VIEWS • Satellite Speaker • Center Speaker MODEL: LHS-W6200T MODEL: LHS-W6200C 6-17 6-18...
  • Page 62 MODEL: LHS-W6200SL LHS-W6200SR A50L/R 6-19 6-20...
  • Page 63 MODEL: LHS-W6200W 6-21 6-22...
  • Page 64 MODEL: ACC-W6200...

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