Onkyo HTR-550 Service Manual page 57

IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS-10
Q4002 : AN15881A (Video SW for TV with Multi-signal 14 Inputs and 4 Outputs) -1/3
BLOCK DIAGRAM
V1
V2
V3
V4
V5
V6
V7
V8
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
C1
C2
C3
C4
C5
C6
C7
C8
CY1
CY2
CY3
CY4
CY5
CY6
PB1
PB2
PB3
PB4
PB5
PB6
PR1
PR2
PR3
PR4
PR5
PR6
SDA
SCL
PIN LAYOUT
65
OUT3-FB
66
VOUT3
67
OUT2-FB
68
VOUT2
69
VOUT1
70
SCL
71
V1
72
V2
73
V3
74
V4
75
V5
76
V6
V7 77
78
V8
79
Y1
Y2 80
4/6dB
6dB
4/6dB
6dB
4/6dB
6dB
6dB
6dB
6dB
6dB
6dB
6dB
O1 O2
Logic
Vout1
Buf
Vout2
75
Vout2-FB
75 Vout3
Vout3-FB
75
Vout4
Vout4-FB
Yout1
Buf
75 Yout2
Yout2-FB
Yout3
75
Yout3-FB
75
Yout4
Yout4-FB
Cout4
Buf
Cout1
75
75
Cout2
75 Cout3
75 CYout2
CYout2-FB
75 CYout3
CYout3-FB
75 PBout1
75 PBout2
75 PRout1
75
PRout2
BIAS
MUTE VCC GND
40 O2
39
PROUT1
38 O1
37 PROUT2
36
MUTE
35 PR6
34 PR5
33
PR4
32
PR3
31
PR2
30 PR1
29
PB6
28
PB5
27
PB4
26 PB3
25
PB2
TX-SR505/505E