Sony CFD-G555CP / CFD-G555CPK Service Manual ▷ View online
45
CFD-G555CP/G555CPK
• IC PIN FUNCTION DESCRIPTION
CD/MP3 BOARD IC1001 LC78684E-US-E (MP3 DECODER, CD-ROM DECODER, ANTI-SHOCK CONTROLLER)
CD/MP3 BOARD IC1001 LC78684E-US-E (MP3 DECODER, CD-ROM DECODER, ANTI-SHOCK CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
LRSY (I)
I
CD L/R clock input
2
ADDATA (O)
O
Audio data output
3
ADBCK (O)
O
Audio bit clock output
4
ADLRCK (O)
O
Audio L/R clock output
5
C2F IN (I)
I
CD C2 error flag input
6
VSS
—
Ground
7
CKIN (I)
I
System clock (16.9344 MHz) input
8
VSS
—
Ground
9
CKOUT (O)
O
Clock (384Fs) output for external DF/DAC.
10
VSS
—
Ground
11
DVDD1
—
Digital power supply (+3.3V)
12
PW (I)
I
CD subcode data serial input (connected to +3.3V)
13
SBSY (I)
I
CD subcode block synchronized signal input (connected to +3.3V)
14
SFSY (I)
I
CD subcode frame synchronized signal input (connected to +3.3V)
15
SBCK (O)
O
Serial clock output for CD subcode transfer. (not used)
16
AVDD
—
Analog (PLL) power supply (+3.3V)
17
VPRFR
—
VCO oscillation range setting pin (connected to +3.3V)
18
VCOC
I
VCO control voltage input
19
VPDO
O
VCO charge pump output
20
AVSS
—
Analog ground
21
DVDD2
—
Power supply (+1.8V)
22
VSS
—
Ground
23 to 30
MDATA0 to 7
I/O
DRAM data bus 0 to 7
31
DVDD3
—
Digital power (+3.3V)
32
VSS
—
Ground
33 to 40
MDATA8 to 15
I/O
DRAM data bus 8 to 15
41
RASB
O
Row Address Strobe signal output (L: active)
42
WEB
O
Data Write Enable signal output (L: active)
43
CASLB
O
Column Address Strobe signal output (for lower byte, L: active)
44
CASUB
O
Column Address Strobe signal output (for upper byte, L: active)
45
OEB
O
Output enable signal output (L: active)
46 to 49
MADRS12 to 9
O
DRAM address output 12 to 9 (not used)
50
MADRS8
O
DRAM address output 8
51
DVDD4
—
Digital power supply (+3.3V)
52
VSS
—
Ground
53 to 60
MADRS7 to 0
O
DRAM address output 7 to 0
61
DVDD5
—
Power supply (+1.8V)
62
VSS
—
Ground
63
STREQIO (O)
I/O
MP3 data request flag output (H: active)/DRAM data request flag input (H: active)
(not used)
64
STCKIO (O)
I/O
MP3 data transfer clock input/DRAM data transfer clock output (not used)
65
STDATIO (O)
I/O
MP3 data serial input/DRAM data serial output (not used)
66
FSYNC (O)
O
MP3 frame synchronized signal input (H: active) (not used)
67
CRCF (O)
O
CDROM-CRC flag output (H: active)/DRAM data output enable signal output
(H: active) (not used)
68
DVDD6
—
Power supply (+3.3V)
69
VSS
—
Ground
46
CFD-G555CP/G555CPK
Pin No.
Pin Name
I/O
Description
70
WOK (I)
I
DRAM write OK input (at CD-DA, H: active)/DRAM data request flag input
(not used)
71
CNTOK (O)
O
Data connecting point detection completion flag output (at CD-DA, H: active)/DRAM
data serial output (at CD-ROM, H: active) (not used)
72
OVF (O)
O
DRAM write discontinue flag output (at CD-DA, H: active)/DRAM data transfer
clock output (at CD-ROM, H: active) (not used)
73
CMDOUT (O)
O
Command serial data output (Nch open drain output pin)
74
CMDIN (I)
I
Command serial data input
75
CL (I)
I
Command serial clock input
76
CE (I)
I
Command enable input (H: active)
77
INTB (O)
O
Interrupt signal output (L: active)
78
RESB (I)
I
System reset input (L: active)
79
DATAIN (I)
I
CD serial data input
80
DATACK (I)
I
CD bit clock input
47
CFD-G555CP/G555CPK
MAIN BOARD IC801 uPD7894216AGF-561-3BA-A (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
TU-CE
O
PLL IC chip enable output
2
TU-DATA
O
PLL IC data output
3
TU-CLK
O
PLL IC clock output
4
TU-COUNT
I
PLL IC IF count data result input
5
TU-MUTE
O
Tuner IF request mute control output
6
SIMUKE1
I
Destination setting pin (connected to ground)
7
SIMUKE2
I
Destination setting pin (connected to ground)
8
TEST-B
I
Audio test mode input
9
VDD
—
Power supply (+3.3V)
10
TEST-A
I
CD/MP3 test mode input
11
EPROM-SCL
O
EEPROM serial clock output
12
EPROM-SDA
I/O
EEPROM serial data input/output
13
SIMUKE3
I
Destination setting pin (connected to ground)
14
N.C
—
Not used
15
N.C
—
Not used
16
MIC_JACK
I
Detection of MIC jack signal input (G555CP:not used)
17
ISS-1
O
REC bias frequency select output (not used)
18
ISS-2
O
REC bias frequency select output (not used)
19
TU-ON
O
RADIO power control signal output
20
TAPE-ON
O
TAPE power control signal output
21
CD-ON
O
CD power control signal output
22
TEST/VPP
I
Connected to ground
23
K-LED
O
KARAOKE PON LED control signal output (G555CP:not used)
24
CTL-B
O
KARAOKE PON mode control signal output (G555CP:not used)
25
CTL-C
O
KARAOKE PON mode control signal output (G555CP:not used)
26
LED2
O
LED (illumination) control signal output
27
LED1
O
LED (illumination) control signal output
28
BUF-CTL
O
MIC control signal output (G555CP:not used)
29
LCD-RST
O
LCD driver reset output
30
LCD INH
O
LCD driver C/D signal output
31
LCD CS
O
LCD driver chip select output
32
LCD DATA
O
LCD driver data output
33
LCD CLK
O
LCD driver clock output
34
N.C
—
Not used
35
FM/AM SHIFT
O
Radio shift clock signal output
36
N.C
—
Not used
37
VDD
—
Power supply pin (+3.3V)
38
X2
O
Cristal oscillator output (5MHz)
39
X1
I
Cristal oscillator input (5MHz)
40
VSS
—
Ground
41
XT2
O
Not used
42
XT1
I
Connected to ground
43
RESET
I
Reset signal input
44
AC-CHK
I
AC/DC check detect signal input
45
RMC IN
I
Remote control signal input
46
WAKE-UP
I
Wake up interrupt signal input
47
N.C
—
Not used
48
CD-DOOR
I
CD door detect signal input
48
CFD-G555CP/G555CPK
Pin No.
Pin Name
I/O
Description
49
INTB(MP3)
I
Decoder IC interrupt signal input
50
WRQ(CD)
I
CD interrupt signal input
51
AVDD
—
Power supply pin (+3.3V)
52
AVREF0
—
Power supply pin (+3.3V)
53
KEY1
I
A/D key input 1
54
KEY2
I
A/D key input 2
55
KEY3
I
A/D key input 3
56
MODEL
I
Model setting pin (connected to ground)
57
N.C
—
Not used
58
REG-CHK
I
Regulator check detect signal input
59, 60
N.C
—
Not used
61
AVSS
—
Ground
62, 63
N.C
—
Not used
64
AVREF1
—
Power supply pin (+3.3V)
65 to 67
N.C
—
Not used
68
CMDOUT(MP3)
I
COMMAND serial data input
69
CMDIN(MP3)
O
COMMAND serial data output
70
CL(MP3)
O
COMMAND serial clock output
71
N.C
—
Not used
72
DRF(CD)
I
CD focus ON detect signal input
73
DO(CD)
I
CD data input
74
DI(CD)
O
CD data output
75
CL(CD)
O
CD clock output
76
CE(CD)
O
CD chip enable output
77
FSEQ(CD)
I
CD synchro. signal detect input
78
RES(CD)
O
CD DSP IC reset output
79
RESB(MP3)
O
MP3 IC system reset output
80
CE(MP3)
O
COMMAND serial enable output
81 to 84
N.C
—
Not used
85
W-LED1
O
Woofer LED control signal output (not used)
86
W-LED2
O
Woofer LED control signal output (not used)
87 to 89
NC
—
Not used
90
P-MUTE
O
Power amp mute control signal output
91
A-MUTE
O
Audio mute control signal output
92
WOOFER ON/OFF
O
Woofer AGC control signal output
93
P-CON
O
Power control signal output
94
V-DATA
O
Electronic volume serial data output
95
V-CLOCK
O
Electronic volume serial clock output
96
WOOFER 1/2
O
Woofer gain control signal output
97
TAPE PLAY
I
TAPE play detect signal input
98
REC IN
I
REC signal input
99
NC
—
Not used
100
VSS
—
Ground
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