LG LHS-D6230W Service Manual
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LG LHS-D6230W Service Manual

LG LHS-D6230W Service Manual

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• SERVICING PRECAUTIONS ....................................................................................................... 1-2
• ESD PRECAUTIONS ................................................................................................................... 1-4
• SPECIFICATIONS ........................................................................................................................ 1-5
• LOCATION OF CUSTOMER CONTROLS ................................................................................... 1-6
• BLOCK DIAGRAM ........................................................................................................................ 2-1
• SCHEMATIC DIAGRAMS ............................................................................................................ 2-3
• WIRING DIAGRAM ...................................................................................................................... 2-9
• VOLTAGE SHEET (IC&TR) ........................................................................................................ 2-11
• PRINTED CIRCUIT DIARGAMS ................................................................................................ 2-15
SECTION 3. DVD PART
• ELECTRICAL TROUBLESHOOTING GUIDE ............................................................................. 3-1
• DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING ...................................... 3-9
• BLOCK DIAGRAMS .................................................................................................................... 3-22
• DVD PART SCHEMATIC DIAGRAMS ........................................................................................ 3-23
• VOLTAGE SHEET (IC & TR) ...................................................................................................... 3-31
• PRINTED CIRCUIT DIAGRAM ................................................................................................... 3-33
SECTION 4. EXPLODED VIEWS ...................................................................................... 4-1
SECTION 5. SPEAKER PART .......................................................................................... 5-1
SECTION 6. REPLACEMENT PARTS LIST ..................................................................... 6-1
All manuals and user guides at all-guides.com
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  • Page 1: Table Of Contents

    All manuals and user guides at all-guides.com CONTENTS SECTION 1. GENERAL • SERVICING PRECAUTIONS ....................... 1-2 • ESD PRECAUTIONS ........................1-4 • SPECIFICATIONS ........................1-5 • LOCATION OF CUSTOMER CONTROLS ................... 1-6 SECTION 2. AUDIO PART • BLOCK DIAGRAM ........................2-1 •...

  • Page 2: Section 1. General

    All manuals and user guides at all-guides.com SECTION 1. GENERAL PART ❏ 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.
  • Page 3 All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com ❏ 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.

  • Page 5: Location Of Customer Controls

    All manuals and user guides at all-guides.com ❏ LOCATION OF CUSTOMER CONTROLS FRONT PANEL DISPLAY WINDOW - 1-6 -...
  • Page 6 All manuals and user guides at all-guides.com REAR PANEL - 1-7 -...
  • Page 7 All manuals and user guides at all-guides.com SECTION 3. ELECTRICAL TROUBLESHOOTING GUIDE 1. System check flow - 3-1 -...
  • Page 8 All manuals and user guides at all-guides.com 2. Power check flow - 3-2 -...
  • Page 9 All manuals and user guides at all-guides.com 3. Test & debug flow - 3-3 -...
  • Page 10 All manuals and user guides at all-guides.com - 3-4 -...
  • Page 11 All manuals and user guides at all-guides.com - 3-5 -...
  • Page 12 All manuals and user guides at all-guides.com - 3-6 -...
  • Page 13 All manuals and user guides at all-guides.com - 3-7 -...
  • Page 14 All manuals and user guides at all-guides.com - 3-8 -...
  • Page 15 All manuals and user guides at all-guides.com ❏ 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) 2) MT1336 reset is high active - 3-9 -...
  • Page 16 All manuals and user guides at all-guides.com 3) RS232 waveform during procedure(Downloading) 4) Flash R/W enable signal during download(Downloading) - 3-10 -...
  • Page 17 All manuals and user guides at all-guides.com 2. SDRAM CLOCK 1) MT1379 main clock is at 27MHz(X501) 3. TRAY OPEN/CLOSE SIGNAL 1) Tray open/close waveform - 3-11 -...
  • Page 18 All manuals and user guides at all-guides.com 2) Tray close waveform 3) Tray open waveform - 3-12 -...
  • Page 19 All manuals and user guides at all-guides.com 4. SLED CONTROL RELATED SIGNAL (NO DISC CONDITION) 5. LENS CONTROL RELATED SIGNAL(NO DISC CONDITION) - 3-13 -...
  • Page 20 All manuals and user guides at all-guides.com 6. LASER POWER CONTROL RELATED SIGNAL (NO DISC CONDITION) 7. DISC TYPE JUDGEMENT WAVEFORM - 3-14 -...
  • Page 21 All manuals and user guides at all-guides.com - 3-15 -...
  • Page 22 All manuals and user guides at all-guides.com 8. FOCUS ON WAVEFORM - 3-16 -...
  • Page 23 All manuals and user guides at all-guides.com 9. SPINDLE CONTROL WAVEFORM (NO DISC CONDITION) - 3-17 -...
  • Page 24 All manuals and user guides at all-guides.com 10. TRACKING CONTROL RELATED SIGNAL(System checking) - 3-18 -...
  • Page 25 All manuals and user guides at all-guides.com 11. RF WAVEFORM 12. MT1379 AUDIO OPTICAL AND COAXIAL OUTPUT (ASPDIF) - 3-19 -...
  • Page 26 All manuals and user guides at all-guides.com 13. MT1379 VIDEO OUTPUT WAVEFORM 1) Full colorbar signal(CVBS) 2) Y - 3-20 -...
  • Page 27 All manuals and user guides at all-guides.com 3) C 14. AUDIO OUTPUT FORM AUDIO DAC 1) Audio related Signal - 3-21 -...
  • Page 28 All manuals and user guides at all-guides.com SECTION 5. SPEAKER PART ❏ MODEL: LHS-D6230T A800 - 5-1 -...
  • Page 29 All manuals and user guides at all-guides.com SECTION 5. SPEAKER PART ❏ MODEL: LHS-D6230W - 5-2 -...

  • Page 30: Section 2. Audio Part

    All manuals and user guides at all-guides.com SECTION 2. AUDIO PART ❏ BLOCK DIAGRAM...

  • Page 31: Schematic Diagrams

    All manuals and user guides at all-guides.com ❏ SHEMATIC DIAGRAMS • MAIN SCHEMATIC DIAGRAM...
  • Page 32 All manuals and user guides at all-guides.com • FRONT SCHEMATIC DIAGRAM...
  • Page 33 All manuals and user guides at all-guides.com • POWER SCHEMATIC DIAGRAM NOTE: Warning NOTE: Parts that are shaded are critical With respect 1. Shaded(I) parts are critical for safety.Replace only to risk of fire or electrical shock. with specified part number. 2.
  • Page 34 All manuals and user guides at all-guides.com ❏ WIRING DIAGRAM NOTE: Warning Parts that are shaded are critical With respect to risk of fire or electrical shock. 2-10...
  • Page 35 All manuals and user guides at all-guides.com ❏ VOLTAGE SHEET (IC&TR) LOC. PART PIN NUM. STOP DVD PLAY LOC. PART PIN NUM. STOP DVD PLAY LOC. PART PIN NUM. STOP DVD PLAY IC650 LC8767XX -15.1 -15.2 IC500 KIA7808 11.9 11.9 -26.7 -26.7 -26.7...
  • Page 36 All manuals and user guides at all-guides.com LOC. PART PIN NUM. STOP DVD PLAY LOC. PART PIN NUM. STOP DVD PLAY -4.5 -4.5 IC400 TDA7265 -18.7 -18.7 18.6 18.6 -18.6 -18.6 IC450 KIA4558 IC601 M60446AFP -5.3 -5.3 IC200 TDA7265 -18.7 -18.7 18.6 18.6...
  • Page 37 All manuals and user guides at all-guides.com ❏ PRINTED CIRCUIT DIAGRAMS • MAIN/POWER/JACK P.C BOARD (SOLDER SIDE) 2-15 2-16...
  • Page 38 All manuals and user guides at all-guides.com • MAIN/POWER/JACK P.C BOARD (COMPONENT SIDE) 2-17 2-18...
  • Page 39 All manuals and user guides at all-guides.com • FRONT P.C. BOARD (SOLDER SIDE) • FRONT P.C. BOARD (COMPONENT SIDE) 2-19 2-20...

  • Page 40: Dvd Part Schematic Diagrams

    All manuals and user guides at all-guides.com ❏ DVD PART SCHEMATIC DIAGRAMS • MPEG SCHEMATIC DIAGRAM 3-23 3-24...
  • Page 41 All manuals and user guides at all-guides.com • SERVO SCHEMATIC DIAGRAM 3-25 3-26...
  • Page 42 All manuals and user guides at all-guides.com • AUDIO SCHEMATIC DIAGRAM 3-27 3-28...
  • Page 43 All manuals and user guides at all-guides.com • INTERFACE SCHEMATIC DIAGRAM 3-29 3-30...

  • Page 44: Voltage Sheet (Ic&Tr)

    All manuals and user guides at all-guides.com ❏ VOLTAGE SHEET (IC&TR) 3-31 3-32...

  • Page 45: Printed Circuit Diagram

    All manuals and user guides at all-guides.com ❏ PRINTED CIRCUIT DIAGRAM • DVD P.C. BOARD(SOLDER SIDE) 3-33 3-34...
  • Page 46 All manuals and user guides at all-guides.com • DVD P.C. BOARD (COMPONENT SIDE) 3-35 3-36...

  • Page 47: Section 4. Exploded Views

    All manuals and user guides at all-guides.com 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 48 All manuals and user guides at all-guides.com • Deck Mechanism Exploded View...

This manual is also suitable for:

Lh-d6230Lhs-d6230t

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