Sony HCD-GX255 Service Manual page 123

Pin No.
Pin Name
42
O-XLAT
43
I-REQ-MP3
44 O-REQ-MP3
O-SSTB-MP3
45
/M-MUTE
46
xWR
47
NC
O-LM-R,
48, 49
O-LM-F
O-TM-R,
50, 51
O-TM-F
52 to 54
I-E-1 to I-E-3
I-CD NUMBER
55
SENS
56
I-OPEN-SW
57 to 61
NC
62 VCC2
63
NC
64
VSS
65
O-LC72121-CLK
66 I-LC72121-DI
67
O-LC72121-DO
68
O-LC72121-CE
69
I-TUNED
70 I-STEREO
71
O-ST-MUTE
72
I-RDS-DATA
73
I-MODEL1
74 I-KEY0
I-MODEL2 to
75 to 80
I-MODEL7
81
I-HP/AUDIO IN
82
I-MIC
83
I-REAL-A
84 I-REAL-B
85
O-MOTOR
86
O-A-SOL
87
O-B-SOL
88
I-TAPE-A-STAT
89
I-TAPE-B-STAT
90
O-REC/PB
91
O-BIAS
92
I-TAPE-AMS
93
I-STREAM
94 I-VACS
I/O
O CD serial data latch pulse signa output to the CD DSP
I MP3 data request signal input from the CD DSP
O MP3 data request signal output to the CD DSP
O Muting on/off control signal output to the motor/coil driver "L": muting on
I/O Not used
I/O Not used
O Loading motor control signal output terminal
O Table motor control signal output terminal
I Disc tray address sensor (rotary encoder) input terminal
I Table address sensor input terminal
I Disc tray open/close detection switch input terminal
I/O Not used
- Power supply terminal (+3.3V)
I/O Not used
- Ground terminal
O Serial data transfer clock signal output to the tuner (FM/AM)
I Serial data input from the tuner (FM/AM)
O Serial data output to the tuner (FM/AM)
O Chip enable signal output to the tuner (FM/AM)
I Tuning detection signal input from the tuner (FM/AM)
I FM stereo detection signal input from the tuner (FM/AM)
O Muting on/off control signal output to the tuner (FM/AM)
I RDS data input from the terminal (AEP and East European models)
I Setting terminal for the destination and model type
I Front panel key input terminal (A/D input)
I Setting terminal for the destination and model type
I Headphone plug and audio in plug insert detection signal input
MIC plug insert detection signal input terminal
I
(120 V AC area in E, Chilean and Peruvian models)
I Deck-A tape reel rotating detection signal input terminal
I Deck-B tape reel rotating detection signal input terminal
O Capstan/reel motor drive signal output terminal
O Deck-A plunger drive signal output terminal
O Deck-B plunger drive signal output terminal
Deck-A cassette detection signal, deck-A mode detection signal and recording (reverse direction)
I
detection signal input terminal (A/D input)
Deck-B cassette detection signal, deck-B mode detection signal and recording (forward direction)
I
detection signal input terminal (A/D input)
O REC/PB switching control signal output terminal
O REC bias on/off control signal output terminal
Auto music sensor detection signal input from the electrical volume
I
"L": music is present, "H": music is not present
I Audio signal input for stream LED (A/D input)
I VACS signal input terminal (A/D input)
HCD-GX255/RG170/RG470
Description
19