Pioneer DJM-909 Service Manual

$7.95


THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL :

DJM-909


Your service manual will be available to download (pdf format) following your payment!


CONTENTS
SAFETY INFORMATION.....................................................................................................................................2
1. SPECIFICATIONS............................................................................................................................................5
2. EXPLODED VIEWS AND PARTS LIST.............................................................................................................6
2.1 PACKING ...................................................................................................................................................6
2.2 EXTERIOR SECTION ...............................................................................................................................8
2.3 CONTROL PANEL (LOWER) SECTION ..................................................................................................10
2.4 CONTROL PANEL (UPPER) SECTION ...................................................................................................12
2.5 FRONT PANEL SECTION........................................................................................................................14
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ..........................................................................................16
3.1 BLOCK DIAGRAM...................................................................................................................................16
3.1.1 OVERALL BLOCK DIAGRAM............................................................................................................16
3.1.2 DSP/ LCD BLOCK DIAGRAM............................................................................................................18
3.2 OVERALL CONNECTION DIAGRAM ......................................................................................................20
3.3 MAIN ASSY (1/6).....................................................................................................................................22
3.4 MAIN ASSY (2/6).....................................................................................................................................24
3.5 MAIN ASSY (3/6).....................................................................................................................................26
3.6 MAIN ASSY (4/6).....................................................................................................................................28
3.7 MAIN ASSY (5/6).....................................................................................................................................30
3.8 MAIN ASSY (6/6).....................................................................................................................................32
3.9 DSP ASSY (1/2) ......................................................................................................................................34
3.10 DSP ASSY (2/2) ....................................................................................................................................36
3.11 C1EQ ASSY (1/2)..................................................................................................................................38
3.12 C1EQ ASSY (2/2)..................................................................................................................................40
3.13 C2EQ ASSY ..........................................................................................................................................42
3.14 C1BF ASSY...........................................................................................................................................44
3.15 C2BF ASSY...........................................................................................................................................46
3.16 MICB ASSY ...........................................................................................................................................48
3.17 HPBO ASSY..........................................................................................................................................50
3.18 FDVR ASSY.......................................................................................................................................... 52
3.19 SDRT ASSY.......................................................................................................................................... 54
3.20 XLR ASSY (1/2) .................................................................................................................................... 56
3.21 XLR ASSY (2/2) .................................................................................................................................... 58
3.22 LVMR (1/2), C1TR, C2TR, FVA1 and FVA2 ASSYS.............................................................................. 60
3.23 LVMR ASSY (2/2) ................................................................................................................................. 62
3.24 CFVR, RVSW and FSSW ASSYS ......................................................................................................... 64
3.25 LCD ASSY ............................................................................................................................................ 66
3.26 SW POWER SUPPLAY......................................................................................................................... 68
3.27 VOLTAGES............................................................................................................................................ 69
3.28 WAVEFORMS....................................................................................................................................... 75
4. PCB CONNECTION DIAGRAM ..................................................................................................................... 80
4.1 MAIN ASSY ............................................................................................................................................ 80
4.2 DSP ASSY .............................................................................................................................................. 84
4.3 C1EQ ASSY............................................................................................................................................ 86
4.4 C2EQ ASSY............................................................................................................................................ 87
4.5 C1BF ASSY ............................................................................................................................................ 88
4.6 C2BF ASSY ............................................................................................................................................ 89
4.7 MICB ASSY ............................................................................................................................................ 90
4.8 HPBO ASSY ........................................................................................................................................... 91
4.9 LVMR, C1TR, C2TR, FVA1, FVA2 and FDVR ASSYS............................................................................. 92
4.10 LVMR, C1TR, C2TR, FVA1, FVA2 and FDVR ASSYS........................................................................... 94
4.11 SDRT ASSYS ....................................................................................................................................... 96
4.12 XLR ASSY ............................................................................................................................................ 97
4.13 CFVR, RVSW and FSSW ASSYS ......................................................................................................... 98
4.14 LCD ASSY .......................................................................................................................................... 100
4.15 SW POWER SUPPLY .......................................................................................................................... 102
5. PCB PARTS LIST ........................................................................................................................................ 104
6. ADJUSTMENT ............................................................................................................................................ 112
6.1 ADJUSTMENT REQUIRED WHEN THE SET IS REPAIRED OR REPLACED..................................... 112
6.2 CH1 OFFSET ADJUSTMENT................................................................................................................ 114
6.3 CH1 GAIN ADJUSTMENT..................................................................................................................... 115
6.4 CH2 OFFSET ADJUSTMENT................................................................................................................ 116
6.5 CH2 GAIN ADJUSTMENT..................................................................................................................... 117
6.6 CH1 EQ Low ADJUSTMENT................................................................................................................. 118
6.7 CH1 EQ Mid ADJUSTMENT.................................................................................................................. 119
6.8 CH1 EQ Hi ADJUSTMENT .................................................................................................................... 120
6.9 CH2 EQ Low ADJUSTMENT................................................................................................................. 121
6.10 CH2 EQ Mid ADJUSTMENT................................................................................................................ 122
6.11 CH2 EQ Hi ADJUSTMENT .................................................................................................................. 123
7. GENERAL INFORMATION.......................................................................................................................... 124
7.1 DIAGNOSIS .......................................................................................................................................... 124
7.1.1 SERVICE MODE ............................................................................................................................. 124
7.1.2 Rewriting of the Software................................................................................................................. 128
7.1.3 POWER ON SEQUENCE................................................................................................................ 135
7.1.4 Table of the roles of the microcomputers ......................................................................................... 136
7.1.5 DISASSEMBLY............................................................................................................................... 138
7.1.6 CONFIGURATION OF THE PC BOARD ......................................................................................... 144
7.2 PARTS................................................................................................................................................... 145
7.2.1 IC INFORMATION ........................................................................................................................... 145
8. PANEL FACILITIES AND SPECIFICATIONS ............................................................................................... 150



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