Sony HCD-RG490 Service Manual page 74

HCD-RG490/RG590
Pin No. Pin Name
59
AVREF
60
AVSS
61
I-HP/AUDIO IN
62
I-SUFFIX
63
I-VACS
64
I-PROTECTOR
65 I-KEY0
66
I-CD-ENCODER
67
I-MODEL
68
I-STREAM
69 O-STBY-LED
70
O-MP3-CLK
71
I-MP3-DATA
72
O-MP3-DATA
73
I-TCM-SYNC
74 O-VFD-RESET
75
O-VFD-CE
76
O-VFD-DATA
77
I-VFD-DATA
78 O-VFD-CLK
79
I-WAKEUP
80
I-XSIRCS-IN
74
I/O
I Reference voltage (+3.3V) input terminal
- Ground terminal
Headphone plug and audio in plug insert detection signal input terminal
I
"L": headphone plug or audio in plug insert
I Setting terminal for the model and destination
I VACS signal input terminal (A/D input)
I Protector detection signal input terminal
I Front panel key input terminal (A/D input)
I Disc table address sensor (rotary encoder) input terminal
I Setting terminal for the model and destination
I Audio signal input for stream LED (A/D input)
O LED drive signal output terminal for STANDBY indicator "H": LED on
MP3 serial data transfer clock signal output to the CD DSP
(Except RG490: Mexican/RG590: Mexican models)
O
MP3 serial data transfer clock signal output to the MP3 decoder
(RG490: Mexican/RG590: Mexican models)
MP3 serial data input terminal (Except RG490: Mexican/RG590: Mexican models)
I
MP3 serial data input from the MP3 decoder (RG490: Mexican/RG590: Mexican models)
MP3 serial data output to the CD DSP (Except RG490: Mexican/RG590: Mexican models)
O
MP3 serial data input from the MP3 decoder (RG490: Mexican/RG590: Mexican models)
I Sync signal input from the tape mechanism deck controller
O System reset signal output to the fluorescent indicator tube/LED driver "L": reset
O Chip enable signal output to the fluorescent indicator tube/LED driver
O Serial data output to the fluorescent indicator tube/LED driver
I Serial data input from the fluorescent indicator tube/LED driver
O Serial data transfer clock signal output to the fluorescent indicator tube/LED driver
I Wake up signal input terminal
I SIRCS signal input from the remote control receiver
Description