Onkyo HT-R508 - Troubleshooting Guide; Power and Audio Troubleshooting

TX-SR505/505E
IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS-13
Q5501 : R2S15211FP (8 ch Electronic Volume and 11 Input Selector and Tone Control)-1/3
SYSTEM DIAGRAM
Lout
REC
Lch
Rout
Input
ATT
Out L
for
ADC
REC
AGND
Out R
for
ADC
Rch
AVCC
Multi
Rin
Multi
Lin
3
4
5
6
7
8
9
1
2
Tone
Rch Tone
Bass &
Treble
Lch Tone
10
11
3
4
5
6
7
8
9
1
2
10
11
SLout
Multi
SLin
Multi
SRin
Cout
SWout
Multi
Cin
Multi
SWin
SBLout
Multi
SBLin
Multi
SBRin
AVEE
SUB
SUB
MCU I/F
CLOCK DATA
Bass &
Treble
Volume
Volume
Input
ATT
mono
SBRout
SRout
Volume
Volume
Volume
Volume
Volume
Volume
Volume
Volume
Input selector
Input selector
Volume
Volume