1-1
[CONTENTS]
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SECTION 1.GENERAL
• ESD PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
• SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
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SECTION 2. ELECTRICAL
• TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
• IC VOLTAGE SHEET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
• WIRNG DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
• BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
• SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
• PRINTED CIRCUIT DIARGAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
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SECTION 3. EXPLODED VIEWS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
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SECTION 4. REPLACEMENT PARTS LIST
. . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Summary of Contents for LHS-A4000C
Page 5: ......
Page 6: ...2 1 TROUBLESHOOTING GUIDE Hello SECTION 2 ELECTRICAL ...
Page 7: ...2 2 AUDIO µ COM Circuit TURN ON Hello POWER Check or Press the ON KEY ...
Page 9: ......
Page 12: ...2 8 2 9 SCHEMATIC DIAGRAMS 1 AMP SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 13: ...2 10 2 11 2 SMPS WIDE SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 14: ...2 12 2 13 3 DSP SCHEMATIC DIAGRAM 1 A B C D E F G H I J K L M N O P Q R S T ...
Page 15: ...2 14 2 15 4 DSP SCHEMATIC DIAGRAM 2 A B C D E F G H I J K L M N O P Q R S T ...
Page 16: ...2 16 2 17 5 MICOM POWER SCHEMATIC DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 17: ...2 18 2 19 6 I O FRONT SCHEMATIC DIAGRAMS A B C D E F G H I J K L M N O P Q R S T ...
Page 18: ...2 20 2 21 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW ...
Page 19: ...2 22 2 23 1 MAIN P C BOARD BOTTOM VIEW ...
Page 20: ...2 24 2 25 2 FRONT JACK P C BOARD TOP VIEW ...
Page 21: ...2 26 2 27 2 FRONT JACK P C BOARD BOTTOM VIEW ...
Page 22: ...2 28 2 29 3 SMPS P C BOARD ...
