Sony MHC-RG270 / MHC-RG475S / MHC-RG575S Service Manual ▷ View online
57
HCD-RG270/RG475/RG575
• Descrições das Funções de Pinos de IC
PLACA PRINCIPAL M30302MCP-A02FPU0 (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, UK, East European models)
19
I-SCOR
I
Subcode Q sync (SCOR) 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 (GX555/RG475/RG575)
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
Serial data transfer clock signal output to the MP3 decoder
29
I-MP3-DI
I
Serial data input from the MP3 decoder
30
O-MP3-DATA
O
Serial data output to the MP3 decoder
31
O-CD-DATA
O
Serial data output to the CD DSP
32
I-CD-SENS
I
Internal status (SENSE) input from the CD DSP
33
O-CD-CLK
O
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-MP3-RESET
O
System reset signal output to the MP3 decoder
39
O-MP3-CS
O
Chip select signal output to the MP3 decoder
40
I-MP3-ACK
I
Acknowledge signal input from the MP3 decoder
41
xHOLD
I/O
Not used
58
HCD-RG270/RG475/RG575
Pin No.
Pin Name
I/O
Description
42
O-MP3-STB
O
Standby signal output to the MP3 decoder
43
I-MP3-REQ
I
Data send request signal input from the MP3 decoder
44
O-MP3-LP
O
Latch pulse signal output to the MP3 decoder
45
O-XLT
O
Latch pulse signal output to the CD DSP
46
xWR
I/O
Not used
47
O-XRST
O
System reset signal output to the CD DSP and motor/coil driver
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
O-CDG-MUTE-
DATA
O
Muting control signal output to the CD graphics decoder (Mexican model)
58
O-CDG-RST
O
System reset signal output to the CD graphics decoder (Mexican model)
59
O-CDG-BGC
O
NTSC/PAL switching control signal output terminal (Mexican model)
60
I-CDG-DET
I
CD-G detection signal input terminal (Mexican model)
61
O-CDG-POWER
O
Power on/off control signal output for CD-G section (Mexican model)
62
VCC2
-
Power supply terminal (+3.3V)
63
O-VMUTE
O
Video muting on/off control signal output terminal (Mexican model)
64
VSS
-
Ground terminal
65
O-LC72121-CLK
O
Serial data transfer clock signal output to the FM/AM tuner pack
66
I-LC72121-DI
I
Serial data input from the FM/AM tuner pack
67
O-LC72121-DO
O
Serial data output to the FM/AM tuner pack
68
O-LC72121-CE
O
Chip enable signal output to the FM/AM tuner pack
69
I-TUNED
I
Tuning detection signal input from the FM/AM tuner pack
70
I-STEREO
I
FM stereo detection signal input from the FM/AM tuner pack
71
O-ST-MUTE
O
Muting on/off control signal output to the FM/AM tuner pack
72
I-RDS-DATA
I
RDS data input from the terminal (AEP, UK, 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, Peruvian, Argentina,
Mexican 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)
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)
90
O-REC/PB
O
REC/PB switching control signal output terminal
Ver. 1.1
59
HCD-RG270/RG475/RG575
Pin No.
Pin Name
I/O
Description
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)
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
60
HCD-RG270/RG475/RG575
CD-G BOARD IC1001 TC9411AFG (BS, K) (CD GRAPHICS DECODER)
Pin No.
Pin Name
I/O
Description
1
SESUB
I
Not used
2
CLCK
O
Serial data transfer clock signal output to the CD DSP
3
DATA
I
Serial data input from the CD DSP
4
SBSY
I
Subcode Q sync (SCOR) input from the CD DSP
5
SFSY
I
WFCK signal input from the CD DSP
6
MUTE
I
Muting control signal input from the system controller
7
VDD1
-
Power supply terminal (+5V)
8
VSS1
-
Ground terminal
9
MCE
I
Chip enable signal input terminal Not used
10
MCDO
O
Serial data output terminal Not used
11
MCDI
I
Serial data input terminal Not used
12
MCCK
I
Serial data transfer clock signal input terminal Not used
13
WE
O
Write enable signal output to the D-RAM
14
RAS
O
Row address strobe signal output to the D-RAM
15 to 22
VA0 to VA7
O
Address signal output to the D-RAM
23
VSS2
-
Ground terminal
24
VDD2
-
Power supply terminal (+5V)
25
VD0
I/O
Two-way data bus with the D-RAM
26
CAS
O
Column address strobe signal output to the D-RAM
27
VD1
I/O
Two-way data bus with the D-RAM
28
OE
O
Data read strobe signal output to the D-RAM
29, 30
VD2, VD3
I/O
Two-way data bus with the D-RAM
31
BLANKIN
I
Blank signal input terminal Not used
32
BIN
I
RGB (B) signal input terminal Not used
33
GIN
I
RGB (G) signal input terminal Not used
34
RIN
I
RGB (R) signal input terminal Not used
35
HSYNC
O
Horizontal synchronize signal output terminal Not used
36
VSYNC
O
Vertical synchronize signal output terminal Not used
37
CDET
O
CD-G detection signal output terminal
38
VON
I
Video on control signal input terminal Not used
39, 40
TEST1, TEST2
I
Test mode setting terminal
41
LINESW
I
Line switch input terminal Not used
42
VREF
I
Reference voltage input terminal
43
AVDD
-
Power supply terminal (+5V)
44
VDOUT
O
Video signal output terminal
45
AVSS
-
Ground terminal
46, 47
BIAS1, BIAS2
I
For bias setting terminal
48
VSS3
-
Ground terminal
49
VDD3
-
Power supply terminal (+5V)
50
QNG
O
Not used
51
PNG
O
Not used
52
DEN
I
NTSC/PAL switching control signal input terminal
53
FSC
O
Not used
54
RESET
I
System reset signal input from the system controller
55
SENTSC
I
Mode setting terminal
56
PDOWN
I
Mode setting terminal
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