![Aiwa XR-FD55 Service Manual Download Page 53](http://html.mh-extra.com/html/aiwa/xr-fd55/xr-fd55_service-manual_2882728053.webp)
Pin No.
Pin Name
I/O
Description
-5
3
-
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
O-PLL DO
I-TU SELECT1
I-TU SELECT2
VSS3
VDD3
NC
(CLK)
(DATA)
(SELECT)
NC
NC
__________
O-CDX2X4
O-DAC-LAT
O-CD-MLD
I-CLOSE SW
I-OPEN SW
O
I
I
–
–
–
–
–
–
–
–
–
O
O
I
I
TUNER data output
Detection in TUNER force
Detection in TUNER force
Ground
Power supply
Not connected
Not connected
Not connected
Not connected
Not connected
Not connected
Not used
CD DAC latch output
CD command latch output
Detection in CD tray close SW
Detection in CD tray open SW
IC DESCRIPTION -1/2 (LC8752B2A-50Y2) -3/3