LG LX-220 free download

File name LX-220.pdf

[CONTENTS] SECTION 1. GENERAL SERVICING PRECAUTIONS ... 1-2 ESD PRECAUTIONS ... 1-4 SPECIFICATION ... 1-5 SECTION 2. TROUBLESHOOTING ADJUSTMENTS ... 2-1 TROUBLESHOOTING ... 2-3 WAVEFORMS OF MAJOR CHECK POINT ... 2-7 BLOCK DIAGRAM ... 2-16 SCHEMATIC DIAGRAMS ... 2-18 WIREING DIAGRAM ... 2-26 PRINTED CIRCUIT DIAGRAMS ... 2-28 INTERNAL BLOCK DIAGRAM OF ICs ... 2-39 PRINTED CIRCUIT DIAGRAMS ... 2-53 SECTION 3. EXPLODED VIEWS CABINET AND MAIN FRAME SECTION ... 3-1 SECTION 4. SPEAKER SECTION SPEAKER SECTION... 4-1 SECTION 5. REPLACEMENT PARTS LIST REPLACEMENT PARTS LIST ... 5-1 - 1-1 - SECTION 1. GENERAL SERVICING PRECAUTIONS [NOTES REGARDING HANDLING OF THE PICK-UP] 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 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