Service manual

79
Pin No. Pin Name I/O Description
90
KEY1 I
Key input terminal (A/D input) S603 to 608 (CDs, CDHS, CDA, MDs, MDHS, MDA,
keys input)
91
KEY2 I
Key input terminal (A/D input) S609 to 616 (FUNCTION, +M L, TUNER/BAND, –l
m, z REC, CD-MD SYNC, STEREO/MONO REPEAT, TUNING MODE/PLAY MODE keys
input)
92
MD-REC-R I R-ch level input from the MD mechanism controller (IC316)
93
HEADPHONE I Headphone detection signal input terminal “H”: headphone in
94
MD-REC-L I L-ch level input from the MD mechanism controller (IC316)
95
MODEL-IN I Model destination setting terminal
96 AG
— Ground terminal
97
SPEC-IN I Model specification setting terminal
98 VREF I
Reference voltage (+5V) input terminal
99
AVCC — Power supply terminal (+5V)
100
TEST — Test setting terminal (fixed at “L”)