Sony HCD-GN1100D - IC Pin Function Descriptions (Continued)

74
HCD-GN1100D
74 NO USE - Not used (open)
75 LED-STOP, Pause O Dynamic LED drive signal output of the STOP and PAUSE indicator
(“H”: LED on)
76 LED-to TAPE, REC O Dynamic LED drive signal output of the TAPE and REC indicator (“H”: LED on)
77 RESET I System reset signal input from the Master Control controller (“L”: reset)
78 LED-AMS
+
, AMS
–
O Dynamic LED drive signal output of AMS
+
and AMS
–
indicator (“H”: LED on)
79 LED - PLAY O Dynamic LED drive signal output of PLAY indicator (“H”: LED on)
80 LED Selector O Dynamic LED drive select signal output
81 VSS-CPU - Ground terminal (for CPU)
82 XO O System clock output (4 MHz)
83 XI I System clock input (4 MHz)
84 VCC-CPU - Power supply terminal (+3.3V) (for CPU)
85 to 100 G1 to 15 O Grid drive signal output to the fluorescent indicator tube
Pin No. Pin Name I/O Desciption