Sony HCD-S550 Service Manual page 90

HCD-S550/S880
Pin No. Pin Name
SDI4
115
SYNC
116
117 to 119 VSS
120 VDDI
90
I/O
I
Audio serial data input terminal Not used
Synchronous/asychronous selection signal input terminal
I
"L": Synchronous, "H": asynchronous (fixed at "H" in this set)
—
Ground terminal
— Power supply terminal (+2.6V)
Description