Sony Walkman WM-FX855, Руководство по обслуживанию

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Pin No. Pin Name I/O Function
54 NC — Not used for this set (Open)
55 LCD13 O Output of segment signal to the LCD
56 NC — Not used for this set (Open)
57 CE O Output of chip enable control signal
58 RQT I Input of request signal for MB89133LPFV communication
59 NC — Not used for this set (Open)
60 BEEP O Output of beep sound
61 PRE AMP CTL O Preamplifier output switching “ L ”: TC, “ H ”: RADIO
62 DDC (TC) ON O Output of DC-DC converter control signal
63 TC CLK O Communication clock input/output terminal
64 TC DATA I Communication data input/output terminal