Sony PMC-D305 Service Manual page 51

Pin No. Pin Name I/O
46 VL O
47-49 VLC3-1 –
50-53 COM0-3 O
54-77 SEG0-23 O
78-84 NC –
85-87 – –
88 BL-CONT O
89 VDD –
90 NC –
91 VSS –
92 TX O
93 TEX I
94 C-MUTE O
95 B-MUTE O
96 A-MUTE O
97 ISS1 I
98 ISS2 I
99 T-END I
100 NC –
LCD bias resistor current control terminal (Cut off at standby)
LCD bias power supply terminal
LCD common signal output terminal
LCD segment signal output terminal
Not used (Open)
Not used (Open)
LCD Back light control output
Power supply (+5V)
Connected to the power supply
Ground
Crystal connection for clock oscillation (32.768kHz)
Crystal connection for clock oscillation (32.768kHz)
Mute output for CD
Mute output for Tuner
Mute output for Audio
ISS1 switch input
ISS2 switch input
Tape end detection input
Not used (Open)
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Function