Onkyo TX-SR503 Service Manual page 83

IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS-23
Q5502: NJU7311AM (Analog Function Switch)
BLOCK DIAGRAM
L1
L2
L-COM1
L3
L4
L-COM2
L5
L6
L-COM3
L7
L-COM4
ST
VDD
VEE
TERMINAL DESCRIPTION
Pin No. Pin Name Description
1 VEE Negative Voltage Supply
2 L1 Analog switch input/output
3 L2 Analog switch input/output
4 L-COM1 L1, L2, Common
5 L3 Analog switch input/output
6 L4 Analog switch input/output
7 L-COM2 L3, L4 common
8 L5 Analog switch input/output
9 L6 Analog switch input/output
10 L-COM3 L5, L6 Common
11 L7 Analog switch input/output
12 L-COM4 L7 Common
14 ST Chip enable
15 VSS GND
Control Circuit
Pin No. Pin Name
16 CK
17 DATA
19 R-COM4
20 R7
21 R-COM3
22 R6
23 R5
24 R-COM2
25 R4
26 R3
27 R-COM1
28 R2
29 R1
30 VDD
TX-SR503/503E/8350
R1
R2
R-COM1
R3
R4
R-COM2
R5
R6
R-COM3
R7
R-COM4
DATA
CK
VSS
Description
Clock input
Data input
R7 Common
Analog switch input/output
R5, R6 Common
Analog switch input/output
Analog switch input/output
R3, R4 Common
Analog switch input/output
Analog switch input/output
R1, R2, Common
Analog switch input/output
Analog switch input/output
Positive voltage supply