Onkyo TX-SR504 Service Manual page 59

IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS-16
Q3001 : AN15880A (Video SW for Receiver with Multi-signal)-1/4
BLOCK DIAGRAM
V1
V2
V3
V4
V5
Y1
Y2
Y3
Y4
Y5
C1
C2
C3
C4
C5
CY1
CY2
CY3
PB1
PB2
PB3
PR1
PR2
PR3
S1 S2 S3 S4 S5 S6
4/6dB
4/6dB
+
6dB
4/6dB
6dB
6dB
6dB
S7 S8 S9 S10
75<E
75<E
75<E
BIAS
VCC
MUTE
TX-SR504/504E/8450
VOUT1
75<E
VOUT3
75<E
VOUT2
YPUT2
75<E
YOUT3
75<E
75<E
YOUT1
COUT2
75<E
COUT3
75<E
75<E COUT1
CYOUT1
75<E
CYOUT2
PBOUT1
75<E
PBOUT2
75<E PROUT1
75<E
PROUT2
GND