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Pin No. Pin Name I/O Pin Description
90 NC — Connected to the power supply.
91 VSS — Ground
92 TX O Crystal connection for clock oscillation. (32.768 kHz)
93 TEX I Crystal connection for clock oscillation. (32.768 kHz)
94 C-MUTE O Mute output for CD.
95 B-MUTE O Mute output for Tuner.
96 A-MUTE O Mute output for Audio.
97 ISS1 I ISS1 switch input
98 ISS2 I ISS2 switch input
99 T-END I Tape end detection input
100 NC — Not used. (Open)