Table Of Contents - Pioneer VSX-LX70 Service Manual

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CONTENTS
SAFETY INFORMATION..................................................................................................................................... 2
1. SERVICE PRECAUTIONS ............................................................................................................................... 6
1.1 NOTES ON SOLDERING .......................................................................................................................... 6
A
2. SPECIFICATIONS ............................................................................................................................................ 7
2.1 ACCESSORIES ......................................................................................................................................... 7
2.2 SPECIFICATIONS ..................................................................................................................................... 8
2.3 PANEL FACILITIES.................................................................................................................................... 9
3. BASIC ITEMS FOR SERVICE........................................................................................................................ 15
3.1 CHECK POINTS AFTER SERVICING..................................................................................................... 15
3.2 PCB LOCATIONS .................................................................................................................................... 16
3.3 JIGS LIST ................................................................................................................................................ 18
4. BLOCK DIAGRAM.......................................................................................................................................... 20
4.1 OVERALL WIRING DIAGRAM ................................................................................................................ 20
4.2 AUDIO BLOCK DIAGRAM....................................................................................................................... 22
4.3 COMPOSITE V BLOCK DIAGRAM ......................................................................................................... 24
B
4.4 S-VIDEO BLOCK DIAGRAM ................................................................................................................... 25
4.5 COMPONENT & VOL BLOCK DIAGRAM ............................................................................................... 26
4.6 DSP BLOCK DIAGRAM........................................................................................................................... 27
4.7 HDMI & DLNA BLOCK DIAGRAM (VSX-LX70)....................................................................................... 28
4.8 HDMI & DVC BLOCK DIAGRAM ............................................................................................................. 29
4.9 MICROCOMPUTER BLOCK DIAGRAM.................................................................................................. 30
5. DIAGNOSIS.................................................................................................................................................... 31
5.1 DIAGNOSIS FLOWCHART ..................................................................................................................... 31
5.2 CIRCUIT DESCRIPTION ......................................................................................................................... 73
6. SERVICE MODE ............................................................................................................................................ 75
6.1 SERVICE MODE...................................................................................................................................... 75
C 7. DISASSEMBLY .............................................................................................................................................. 80
8. EACH SETTING AND ADJUSTMENT ........................................................................................................... 87
8.1 ADJUSTMENT ......................................................................................................................................... 87
8.2 HOW TO UPDATE THE DSP FLASH ROM BY PLAYING BACK A CD .................................................. 87
8.3 HOW TO UPDATE THE FLASH ROMS FOR VARIOUS MICROCOMPUTERS ..................................... 90
9. EXPLODED VIEWS AND PARTS LIST.......................................................................................................... 92
9.1 PACKING ................................................................................................................................................. 92
9.2 EXTERIOR SECTION.............................................................................................................................. 94
9.3 CHASSIS SECTION ................................................................................................................................ 96
9.4 REAR PANEL SECTION.......................................................................................................................... 98
9.5 POWER AMP SECTION........................................................................................................................ 100
9.6 FRONT PANEL SECTION ..................................................................................................................... 102
D
10. SCHEMATIC DIAGRAM ............................................................................................................................. 104
10.1 AUDIO & MULTI CH IN ASSY ............................................................................................................. 104
10.2 V-AUDIO ASSY.................................................................................................................................... 106
10.3 FRONT-IN and HEADPHONE ASSYS ................................................................................................ 108
10.4 BRIDGE1, BRIDGE2, TRANS SIDE and BRIDGE3 ASSYS ................................................................110
10.5 COMPOSITE V ASSY ..........................................................................................................................112
10.6 S-VIDEO ASSY.....................................................................................................................................114
10.7 COMPONENT & VOL ASSY (1/4) ........................................................................................................116
10.8 COMPONENT & VOL ASSY (2/4) ........................................................................................................118
10.9 COMPONENT & VOL ASSY (3/4) ....................................................................................................... 120
10.10 COMPONENT & VOL ASSY (4/4) ..................................................................................................... 122
10.11 DIGITAL MOTHER ASSY (1/7) .......................................................................................................... 124
E
10.12 DIGITAL MOTHER ASSY (2/7).......................................................................................................... 126
10.13 DIGITAL MOTHER ASSY (3/7).......................................................................................................... 128
10.14 DIGITAL MOTHER ASSY (4/7).......................................................................................................... 130
10.15 DIGITAL MOTHER ASSY (5/7).......................................................................................................... 132
10.16 DIGITAL MOTHER ASSY (6/7).......................................................................................................... 134
10.17 DIGITAL MOTHER ASSY (7/7).......................................................................................................... 136
10.18 DSP ASSY (1/3)................................................................................................................................. 138
10.19 DSP ASSY (2/3)................................................................................................................................. 140
10.20 DSP ASSY (3/3)................................................................................................................................. 142
10.21 INTERFACE ASSY (1/2) .................................................................................................................... 144
10.22 INTERFACE ASSY (2/2) .................................................................................................................... 146
10.23 POWER AMP IN and POWER PROTECT ASSYS ........................................................................... 148
F
10.24 POWER AMP L ASSY ....................................................................................................................... 150
10.25 POWER AMP R ASSY ...................................................................................................................... 152
10.26 LOCAL SUPPLY and DC/DC ASSYS ................................................................................................ 154
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