VSX-74TXVi
4
1
2
3
4
1
2
3
4
C
D
F
A
B
E
CONTENTS
SAFETY INFORMATION ..................................................................................................................................... 2
1. SPECIFICATIONS ............................................................................................................................................ 6
2. EXPLODED VIEWS AND PARTS LIST ............................................................................................................ 8
2.1 PACKING ................................................................................................................................................... 8
2.2 EXTERIOR............................................................................................................................................... 10
2.3 CHASSIS SECTION ................................................................................................................................ 12
2.4 REAR PANEL SECTION.......................................................................................................................... 14
2.5 POWER AMP BLOCK.............................................................................................................................. 16
2.6 FRONT PANEL SECTION ....................................................................................................................... 18
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM .......................................................................................... 20
3.1 BLOCK DIAGRAM ................................................................................................................................... 20
3.1.1 OVERALL BLOCK DIAGRAM ........................................................................................................... 20
3.1.2 COMPOSITE V BLOCK DIAGRAM ................................................................................................... 22
3.1.3 S-VIDEO BLOCK DIAGRAM ............................................................................................................. 23
3.1.4 COMPONENT &VOL BLOCK DIAGRAM .......................................................................................... 24
3.1.5 DSP BLOCK DIAGRAM .................................................................................................................... 25
3.1.6 HDMI & DVC BLOCK DIAGRAM ....................................................................................................... 26
3.1.7 MICROCOMPUTER BLOCK DIAGRAM ........................................................................................... 27
3.2 OVERALL WIRING CONNECTION DIAGRAM........................................................................................ 28
3.3 AUDIO & MULTI CH IN ASSY.................................................................................................................. 30
3.4 V-AUDIO ASSY ........................................................................................................................................ 32
3.5 FRONT-IN and HEADPHONE ASSYS..................................................................................................... 34
3.6 BRIDGE1, BRIDGE2, TRANS SIDE and BRIDGE3 ASSYS ................................................................... 36
3.7 COMPOSITE V ASSY.............................................................................................................................. 38
3.8 S-VIDEO ASSY........................................................................................................................................ 40
3.9 COMPONENT & VOL ASSY (1/4) ........................................................................................................... 42
3.10 COMPONENT & VOL ASSY (2/4) ......................................................................................................... 44
3.11 COMPONENT & VOL ASSY (3/4) ......................................................................................................... 46
3.12 COMPONENT & VOL ASSY (4/4) ......................................................................................................... 48
3.13 DIGITAL MOTHER ASSY (1/8) .............................................................................................................. 50
3.14 DIGITAL MOTHER ASSY (2/8) .............................................................................................................. 52
3.15 DIGITAL MOTHER ASSY (3/8) .............................................................................................................. 54
3.16 DIGITAL MOTHER ASSY (4/8) .............................................................................................................. 56
3.17 DIGITAL MOTHER ASSY (5/8) .............................................................................................................. 58
3.18 DIGITAL MOTHER ASSY (6/8) .............................................................................................................. 60
3.19 DIGITAL MOTHER ASSY (7/8) .............................................................................................................. 62
3.20 DIGITAL MOTHER ASSY (8/8) .............................................................................................................. 64
3.21 DSP ASSY (1/2)..................................................................................................................................... 66
3.22 DSP ASSY (2/2)..................................................................................................................................... 68
3.23 INTERFACE ASSY ................................................................................................................................ 70
3.24 POWER AMP IN and POWER PROTECT ASSYS................................................................................ 72
3.25 POWER AMP L ASSY ........................................................................................................................... 74
3.26 POWER AMP R ASSY........................................................................................................................... 76
3.27 LOCAL SUPPLY and DC/DC ASSYS .................................................................................................... 78
3.28 TRANS2-1, VH-TR, DIODE and SP/PS ASSYS .................................................................................... 80
3.29 TRANS2-2, TRANS1 and PRIMARY ASSYS......................................................................................... 82
3.30 VOLUME, DISPLAY and INPUT SELECT ASSYS................................................................................. 84
3.31 PREOUT & CONTROL ASSY................................................................................................................ 86
3.32 1394 ASSY (1/2) .................................................................................................................................... 88
3.33 1394 ASSY (2/2) .................................................................................................................................... 90
3.34 HDMI&DVC ASSY (1/2) ......................................................................................................................... 92
3.35 HDMI&DVC ASSY (2/2) ......................................................................................................................... 94
4. PCB CONNECTION DIAGRAM ..................................................................................................................... 96
4.1 PRIOUT&CONTROL ASSY ..................................................................................................................... 97
4.2 AUDIO&MULTI CH IN ASSY.................................................................................................................... 98
4.3 V-AUDIO ASSY ........................................................................................................................................ 99
4.4 HEAD PHONE and FRONT-IN ASSYS.................................................................................................. 100
4.5 BRIDGE1 and BRIDGE2 ASSYS .......................................................................................................... 101
4.6 TRANS SIDE and BRIDGE3 ASSYs ..................................................................................................... 102
4.7 COMPOSITE V ASSYS ......................................................................................................................... 104
4.8 S-VIDEO ASSY...................................................................................................................................... 105
4.9 COMPONENT&VOL ASSY.................................................................................................................... 106
4.10 DIGITAL MOTHER ASSY .................................................................................................................... 110
4.11 DSP ASSY ........................................................................................................................................... 114
4.12 INTERFACE ASSY .............................................................................................................................. 116
