Sony HT-BE1, Service Manual

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9
HT-BE1/SA-WBE1/SS-BE1
58 BVDD — Power supply pin (+3.3 V)
59 BVSS — Ground
60, 61 NC — Not used. (Open)
62 READY-H O Power supply (ready) output
63 USB-PLYSCK I USB play/idle decision input
64 to 66 NC — Not used. (Open)
67 USB-H O USB/analog select output
68 VOL-STB O Latch output for volume control.
69 VOL-CLK O Clock output output for volume control.
70 VOL-DATA O Data output for volume control.
71 NC — Not used. (Open)
72 READY-H O Ready LED ON/OFF control output (ready mode: red LED light on)
73 NC — Not used. (Open)
74 AVDD — Analog power supply pin (+5 V)
75 AVSS — Analog ground
76 AVREF — Analog reference voltage pin (+5 V)
77 to 80 NC — Not used. (Fixed at H)
81 AUDIO DEC I Auto power ON/OFF level check input
82 KEY1 I Key AD value input
83 ENA I Encoder A input
84 ENB I Encoder B input
85 DIGITAL DEC I Level decision input from DIR.
86 to 88 NC — Not used. (Fixed at H)
89 NC — Not used. (Open)
90 STOP I Stop mode check signal input
91 SIRCS I SIRCS signal input
92 RDS-DATA I Not used. (Open)
93 P-WAKE I Interruption signal input from STOP mode.
94 to 96 NC — Not used. (Open)
97 IN I µ-com programming serial in input
98 CO-S/MUTE O Soft mute control output for MAC.
99 CO-PD O Soft reset control output for MAC
100 CO-CS O Chip select output for MAC.
Pin No. Pin Name I/O Pin Description