Sony HCD-GX255 / HCD-RG170 / HCD-RG470 Service Manual ▷ View online
17
HCD-GX255/RG170/RG470
Pin No.
Pin Name
I/O
Description
90
CLK2
I
MP3 serial data transfer clock signal input from the system controller
91
SVSS
-
Ground terminal
92
SVDD
-
Power supply terminal (+2.5V)
93
JTAGTCK
-
Not used
94
JTAGTDI
-
Not used
95
JTAGTDO
-
Not used
96
JTAGTMS
-
Not used
97
TRST
-
Not used
98
VSS
-
Ground terminal
99
VDD
-
Power supply terminal (+1.8V)
100
IOVDD2
-
Power supply terminal (+3.3V)
101
DOUT
O
Digital audio signal output terminal Not used
102
TEST
I
Test terminal Normally: fixed at "L"
103
TES1
I
Test terminal Normally: fixed at "L"
104
IOVSS2
-
Ground terminal
105
PLLVDD
-
Power supply terminal (+1.8V)
106
PLLVSS
-
Ground terminal
107
XVSS
-
Ground terminal
108
XTAO
O
System clock output terminal (16.9344 MHz)
109
XTAI
I
System clock input terminal (16.9344 MHz)
110
XVDD
-
Power supply terminal (+1.8V)
111
AVDD1
-
Power supply terminal (+3.3V)
112
AOUT1
O
L-ch analog audio signal output terminal
113
VREFL
O
L-ch reference voltage output terminal
114
AVSS1
-
Ground terminal
115
AVSS2
-
Ground terminal
116
VREFR
O
R-ch reference voltage output terminal
117
AOUT2
O
R-ch analog audio signal output terminal
118
AVDD1
-
Power supply terminal (+3.3V)
119
IOVDD0
-
Power supply terminal (+3.3V)
120
IOVSS0
-
Ground terminal
18
HCD-GX255/RG170/RG470
MAIN BOARD M30302MCP-A05FPU0 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
O-BD3401-
DATA
O
Serial data output to the electrical volume
2
O-BD3401-CLK
O
Serial data transfer clock signal output to the electrical volume
3
O-VFD-RESET
O
System reset signal output to the FL/LED driver
4
O-VFD-CE
O
Chip enable signal output to the FL/LED driver
5
I-AC-CUT
I
AC power detection signal input terminal
6
I-VOL-A
I
Jog dial pulse input terminal
7
I-SIRCS-IN
I
SIRCS signal input terminal
8
BYTE
I
Mode setting terminal Normally not used
9
CNVSS
I
Mode setting terminal Normally not used
10
XCIN
(32.768KHZ)
I
Sub system clock input terminal (32.768 kHz)
11
XCOUT
(32.768KHZ)
O
Sub system clock output terminal (32.768 kHz)
12
I-RESET
I
System reset signal input from the reset signal generator "L": reset
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
13
XOUT (16MHZ)
O
Main system clock output terminal (16 MHz)
14
VSS
-
Ground terminal
15
XIN (16MHZ)
I
Main system clock input terminal (16 MHz)
16
VCC1
-
Power supply terminal (+3.3V)
17
NMI
I
Non-maskable interrupt signal input terminal
18
I-RDS-CLK
I
RDS data transfer clock signal input terminal (AEP and East European models)
19
I-SCOR
I
Subcode sync (S0+S1) detection signal input from the CD DSP
20
I-AC-PULSE
I
AC main power detection signal input terminal
21
I-VOL-B
I
Jog dial pulse input terminal
22
O-STBY-LED
O
LED drive signal output terminal
23
O-SYS-MUTE
O
Muting on/off control signal output terminal
24
O-STK-MUTE
O
Standby signal output to the power amplifier (for front speaker output)
25
O-SWR
O
Relay drive signal output for surround output Not used
26
O-POWER-
RELAY
O
Relay drive signal output for main power
27
O-FRONT-SP-
RELAY
O
Power on/off control signal output for the fan motor and amplifier section
28
O-MP3-CLK
O
MP3 serial data transfer clock signal output to the CD DSP
29
I-MP3-DI
I
MP3 serial data input terminal
30
O-MP3-DATA
O
MP3 serial data output to the CD DSP
31
O-CD-DATA
O
CD serial data output to the CD DSP
32
I-CD-SENS
I
Internal status (SENSE) signal input from the CD DSP
33
O-CD-CLK
O
CD serial data transfer clock signal output to the CD DSP
34
O-XTCN
O
Oscillator control signal output to the CD DSP
35
O-VFD-DATA
O
Serial data output to the FL/LED driver
36
I-VFD-DATA
I
Serial data input from the FL/LED driver
37
O-VFD-CLK
O
Serial data transfer clock signal output to the FL/LED driver
38
O-XRST
O
System reset signal output to the CD DSP "L": reset
39
O-XLAT-MP3
O
MP3 serial data latch pulse signal output to the CD DSP
40
I-ACK-MP3
I
MP3 acknowledge signal input from the CD DSP
41
xHOLD
I/O
Not used
19
HCD-GX255/RG170/RG470
Pin No.
Pin Name
I/O
Description
42
O-XLAT
O
CD serial data latch pulse signa output to the CD DSP
43
I-REQ-MP3
I
MP3 data request signal input from the CD DSP
44
O-REQ-MP3
O
MP3 data request signal output to the CD DSP
45
O-SSTB-MP3
/M-MUTE
O
Muting on/off control signal output to the motor/coil driver "L": muting on
46
xWR
I/O
Not used
47
NC
I/O
Not used
48, 49
O-LM-R,
O-LM-F
O
Loading motor control signal output terminal
50, 51
O-TM-R,
O-TM-F
O
Table motor control signal output terminal
52 to 54
I-E-1 to I-E-3
I
Disc tray address sensor (rotary encoder) input terminal
55
I-CD NUMBER
SENS
I
Table address sensor input terminal
56
I-OPEN-SW
I
Disc tray open/close detection switch input terminal
57 to 61
NC
I/O
Not used
62
VCC2
-
Power supply terminal (+3.3V)
63
NC
I/O
Not used
64
VSS
-
Ground terminal
65
O-LC72121-CLK
O
Serial data transfer clock signal output to the tuner (FM/AM)
66
I-LC72121-DI
I
Serial data input from the tuner (FM/AM)
67
O-LC72121-DO
O
Serial data output to the tuner (FM/AM)
68
O-LC72121-CE
O
Chip enable signal output to the tuner (FM/AM)
69
I-TUNED
I
Tuning detection signal input from the tuner (FM/AM)
70
I-STEREO
I
FM stereo detection signal input from the tuner (FM/AM)
71
O-ST-MUTE
O
Muting on/off control signal output to the tuner (FM/AM)
72
I-RDS-DATA
I
RDS data input from the terminal (AEP and East European models)
73
I-MODEL1
I
Setting terminal for the destination and model type
74
I-KEY0
I
Front panel key input terminal (A/D input)
75 to 80
I-MODEL2 to
I-MODEL7
I
Setting terminal for the destination and model type
81
I-HP/AUDIO IN
I
Headphone plug and audio in plug insert detection signal input
82
I-MIC
I
MIC plug insert detection signal input terminal
(120 V AC area in E, Chilean and Peruvian models)
(120 V AC area in E, Chilean and Peruvian models)
83
I-REAL-A
I
Deck-A tape reel rotating detection signal input terminal
84
I-REAL-B
I
Deck-B tape reel rotating detection signal input terminal
85
O-MOTOR
O
Capstan/reel motor drive signal output terminal
86
O-A-SOL
O
Deck-A plunger drive signal output terminal
87
O-B-SOL
O
Deck-B plunger drive signal output terminal
88
I-TAPE-A-STAT
I
Deck-A cassette detection signal, deck-A mode detection signal and recording (reverse direction)
detection signal input terminal (A/D input)
detection signal input terminal (A/D input)
89
I-TAPE-B-STAT
I
Deck-B cassette detection signal, deck-B mode detection signal and recording (forward direction)
detection signal input terminal (A/D input)
detection signal input terminal (A/D input)
90
O-REC/PB
O
REC/PB switching control signal output terminal
91
O-BIAS
O
REC bias on/off control signal output terminal
92
I-TAPE-AMS
I
Auto music sensor detection signal input from the electrical volume
"L": music is present, "H": music is not present
"L": music is present, "H": music is not present
93
I-STREAM
I
Audio signal input for stream LED (A/D input)
94
I-VACS
I
VACS signal input terminal (A/D input)
20
HCD-GX255/RG170/RG470
Pin No.
Pin Name
I/O
Description
95
I-PROTECTOR
I
Protector operating detection signal input terminal
96
AVSS
-
Ground terminal
97
I-POWER,
DISPLAY
I
Front panel key input terminal (A/D input)
98
VREF
I
Reference voltage input terminal
99
AVCC
-
Power supply terminal (+3.3V)
100
NC
O
Not used
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