- 1-1 -
[CONTENTS]
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SECTION 1. GENERAL
• SERVICING PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
• ESD PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
• SPECIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
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SECTION 2. ELECTRICAL
• ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
• TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
• WAVEFORMS OF MAJOR CHECK POINT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
• BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
• SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
• WIREING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31
• PRINTED CIRCUIT DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32
• INTERNAL BLOCK DIAGRAM OF ICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-39
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SECTION 3. EXPLODED VIEWS
• CABINET AND MAIN FRAME SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
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SECTION 4. SPEAKER
• SPEAKER PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
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SECTION 5. REPLACEMENT PARTS LIST
• REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
Summary of Contents for LX-140
Page 1: ...MICRO COMPONENT...
Page 6: ...1 5 SPECIFICATIONS...
Page 7: ...1 6 MEMO...
Page 9: ...2 2 CD PART TROUBLESHOOTING...
Page 10: ...2 3 OPEN CLOSE NG...
Page 11: ...2 4 READING DISPLAY CHECK ONLY CD DISPLAY...
Page 12: ...2 5 READING OK CHECK NO DISC DISPLAY...
Page 13: ...2 6 READING OK CHECK A NO DISC DISPLAY...
Page 14: ...2 7 READING OK CHECK B NO DISC DISPLAY...
Page 15: ...2 8 READING OK CHECK C NO DISC DISPLAY...
Page 16: ...2 9 READING OK CHECK D NO DISC DISPLAY...
Page 17: ...2 10 READING OK CHECK E NO DISC DISPLAY...
Page 18: ...2 11 WAVEFORMS OF MAKOR CHECK POINT...
Page 20: ...2 13 AUDIO PART...
Page 21: ...2 14...
Page 22: ...2 15...
Page 23: ...2 16...
Page 27: ...2 20 MEMO...
Page 28: ...BLOCK DIAGRAM 2 21 2 22...
Page 29: ...2 23 2 24 SCHEMATIC DIAGRAMS FRONT POWER SCHEMATIC DIAGRAM...
Page 30: ...2 25 2 26 MAIN DECK SCHEMATIC DIAGRAM...
Page 31: ...2 27 2 28 TUNER SCHEMATIC DIAGRAM...
Page 32: ...2 29 2 30 CDP SCHEMATIC DIAGRAM...
Page 33: ...2 31 2 32 WIRING DIAGRAM...
Page 34: ...2 33 2 34 PRINTED CIRCUIT DIAGRAMS FRONT P C BOARD...
Page 35: ...2 35 2 36 MAIN P C BOARD...
Page 36: ...2 37 2 38 CDP P C BOARD...
Page 37: ...2 39 INTERNAL BLOCK DIAGRAM OF ICs IC300 LC87F73C8A 1 Pin Assignment...
Page 38: ...2 40 IC601 TDA7468D 1 BLOCK DIAGRAM...
Page 39: ...2 41 2 PIN CONNECTION...
Page 40: ...2 42 IC301 BU1923 1 BLOCK DIAGRAM...
Page 41: ...2 43 IC102LA1837 1 BLOCK DIAGRAM IC102LA1837 2 Test Circuit Diagram...
Page 42: ...2 44 IC103 LC72131D 1 Pin Assignments...
Page 43: ...2 45 IC201 AN7312 1 BLOCK DIAGRAM IC701 LA4631 1 BLOCK DIAGRAM...
Page 46: ...4 1 SECTION 4 SPEAKER SECTION MODEL LXS M140 855 854 853 852 851 861 850 850...
Page 47: ...4 2 MEMO...
