VSX-AX4AVi-S
5
5
6
7
8
5
6
7
8
C
D
F
A
B
E
4.13 POWER AMP IN ASSY ........................................................................................................................120
4.14 POWER PROTECT ASSY....................................................................................................................121
4.15 POWER AMP L and POWER AMP R ASSYS......................................................................................122
4.16 LOCAL SUPPLY and DC/DC ASSYS...................................................................................................126
4.17 TRANS2-1, VH TR, DIODE and TRANS2-2 ASSYS ............................................................................128
4.18 SP/PS ASSY.........................................................................................................................................130
4.19 TRANS1 and PRIMARY ASSYS ..........................................................................................................132
4.20 VOLUME, DISPLAY and INPUT SELECT ASSYS ...............................................................................134
4.21 HDMI&DVC ASSY ................................................................................................................................138
4.22 1394 ASSY ...........................................................................................................................................140
5. PCB PARTS LIST ..........................................................................................................................................141
6. ADJUSTMENT ..............................................................................................................................................188
7. GENERAL INFORMATION ...........................................................................................................................189
7.1 DIAGNOSIS ............................................................................................................................................189
7.1.1 TEST MODE.....................................................................................................................................189
7.1.2 PROTECTION CIRCUIT SPECIFICATION ......................................................................................192
7.1.3 TROUBLESHOOTING THE DSP BLOCK ........................................................................................194
7.1.4 DIAGNOSIS OF THE HDMI BLOCK AND RELATED SYSTEMS ....................................................202
7.1.5 DIAGNOSIS OF THE 1394 ASSY....................................................................................................218
7.1.6 iPod INFORMATION.........................................................................................................................223
7.1.7 HOW TO UPDATE THE DSP FLASH ROM BY PLAYING BACK A CD ...........................................225
7.1.8 HOW TO UPDATE THE FLASH ROMS FOR VARIOUS MICROCOMPUTERS ..............................228
7.1.9 DISASSEMBLY ................................................................................................................................229
7.1.10 HOW TO DIAGNOSE THE PRODUCT WITH THE POWER AMP BLOCK REMOVED.................236
7.1.11 FAILURE DIAGNOSIS OF THE POWER AMP BLOCK .................................................................238
7.2 PARTS ....................................................................................................................................................239
7.2.1 IC......................................................................................................................................................239
8. PANEL FACILITIES .......................................................................................................................................268