Sony WX-C55 Service Manual page 26

Pin No. Pin Name
54 SYS-RST
55 BUS-ON
56, 57 RE1, 0
58 AD-ON
59 RAMBU
60 RESET
61 SIRCS
62 BU-IN
63 NIL
64 ACC-IN
65 DIMMER
66 TEL-MUTE
67 KEY-ACK
68 VDD
69 X2
70 X1
71 IC
72 XT2
73 XT1
74 AVDD
75 AVREF
76, 77 KEY-IN0, 1
78 KEY-IN2
79 RC-IN0
80 DSTSEL
26
I/O
O System reset signal output
O Bus ON control output
I Rotary encoder input 1, 0
O Power supply output for A/D conversion.
I RAM reset detection input
— Reset input
I Remote control input (Not used in this set.)
I Backup power detection input
— Not used (Connect to ground in this set.)
I Accessory power supply detection input
I Dimmer control input
I Telephone mute control input
I Key input acknowledge
— µ-con power supply
O Main ceramic oscillator output (5 MHz)
I Main ceramic oscillator input (5 MHz)
— Connect to ground in this set.
O Sub crystal oscillator output (32.768 kHz)
I Sub crystal oscillator input (32.768 kHz)
— Power supply for A/D conversion.
— Reference power supply for A/D conversion.
I Key input 0, 1
I Key input 2 (Not used in this set.)
I Rotary commander A/D conversion input 0
I Initial setting input of destination. ("H" : US model, "L" : E model)
Pin Description