Bose AV28 Manual page 65

U204, U305, U405, U504
OP AMP, DUAL, SINGLE SUPPLY
Inputs
___
ST Select A
H X
L L
L L
L H
L H
X = Don't care
U302, U304, U402, U404, U502, U505 Truth Table
74LCX157, QUAD 2 CHANNEL MUX
U306, U406 CS8405A, XMITTER, DIG, SOIC
Integrated Circuit Diagrams
Output
B Y
X X L
L X L
H X H
X L L
X H H
U501, CS8415A, RECEIVER, SPDIF, SOIC
U205, OP AMP, DUAL, HI CURRENT
U303, U403, CS4224, CODEC AUDIO, SS0P28
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