Sony WX-C570, Service Manual

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Pin No. Pin Name I/O Pin Description
54 SYS-RST O System reset control output
55 BUS-ON O BUS ON control output (for SONY BUS)
56, 57 RE1, 0 I Rotary encoder input
58 AD-ON O Power control output for A/D conversion.
59 RAMBU I RAM reset detection input
60 RESET – Reset input
61 SIRCS I Remote commander input
62 BU-IN I Backup power detection input
63 NIL I Not used. (Connect to GND.)
64 ACC-IN I Accessory power detection input
65 DIMMER I DIMMER control input
66 TEL-MUTE I External mute detection input
67 KEY-ACK I Key input acknowledge
68 VDD – Microcomputer power supply
69 X2 – Main oscillator output (5 MHz)
70 X1 – Main oscillator input (5 MHz)
71 IC – Not used. (Connect to GND.)
72 XT2 – Sub oscillator output (32 kHz)
73 XT1 – Sub oscillator input (32 kHz)
74 AVDD – Power supply for A/D conversion.
75 AVREF – Reference voltage power supply for A/D conversion.
76 – 78 KEY-IN0 - 2 I Key input
79 RC-IN0 I Rotary commander input
80 DSTSEL I Destination initial setting (A/D conversion input)