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1. NO SOUND FROM SPEAKERS ............................................................................................................ 3-2
2. NO SOUND IN AUX FUNCTION ............................................................................................................ 3-3
3. NO SOUND IN PORT. IN FUNCTION ................................................................................................... 3-4
4. NO SOUND IN AM/FM FUNCTION ....................................................................................................... 3-5
5. NO SOUND IN CD FUNCTION .............................................................................................................. 3-6
6. NO SOUND IN USB FUNCTION ............................................................................................................ 3-8
7. NO POWER ............................................................................................................................................ 3-9
1. NO POWER .......................................................................................................................................... 3-10
2. NO BOOTING WHEN POWER ON THE SET ..................................................................................... 3-12
3. VFD IS NOT DISPLAYED WHEN POWER ON THE SET ................................................................... 3-13
4. NO BOOTING IN CD/USB FUNCTION ................................................................................................ 3-14
5. NO OPERATION OF MD ..................................................................................................................... 3-19
6. NO SOUND .......................................................................................................................................... 3-24
1. POWER SUPPLY ON SMPS BOARD ................................................................................................. 3-32
2. SYSTEM PART .................................................................................................................................... 3-36
3. NO AUDIO PART ................................................................................................................................. 3-37
4. DIGITAL AUDIO AMP CHECK ............................................................................................................. 3-41
............................................................................................................................................. 3-42
................................................................................................................................... 3-47
1. SMPS BLOCK DIAGRAM..................................................................................................................... 3-49
2. MAIN SYSTEM BLOCK DIAGRAM ...................................................................................................... 3-51
1. SMPS CIRCUIT DIAGRAM .................................................................................................................. 3-53
2. MAIN - MICOM CIRCUIT DIAGRAM .................................................................................................... 3-55
3. MAIN - PWM / FILTER CIRCUIT DIAGRAM ........................................................................................ 3-57
4. MAIN - IR AMP CIRCUIT DIAGRAM ................................................................................................... 3-59
5. MAIN - DSP / USB / IPOD CIRCUIT DIAGRAM .................................................................................. 3-61
6. MAIN - RF SERVO CIRCUIT DIAGRAM ............................................................................................. 3-63
7. MAIN - ADC CIRCUIT DIAGRAM ........................................................................................................ 3-65
8. MAIN - BEAT BOX CIRCUIT DIAGRAM .............................................................................................. 3-67
9. FRONT - VFD CIRCUIT DIAGRAM ..................................................................................................... 3-69
10. FRONT - VOLUME CIRCUIT DIAGRAM ............................................................................................. 3-71
11. FRONT - MIC & PORTABLE CIRCUIT DIAGRAM .............................................................................. 3-73
1. SMPS P.C.BOARD ............................................................................................................................... 3-79
2. MAIN P.C.BOARD ................................................................................................................................ 3-83
3. FRONT_VFD P.C.BOARD ................................................................................................................... 3-87
4. FRONT_MIC & PORTABLE P.C.BOARD ............................................................................................ 3-89
5. FRONT_VOLUME P.C.BOARD ........................................................................................................... 3-91
SECTION 3
ELECTRICAL
CONTENTS
................................................................................................................................... 3-2
................................................................................................................. 3-10
................................................................................................................................. 3-49
............................................................................................................................... 3-53
................................................................................................................. 3-75
.................................................................................. 3-32
......................................................................................... 3-79
3-1
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