Read Sony CDX-C8050X Service Manual online
22
Pin No.
Pin Name
I/O
Pin Description
37
ANT CUT
O
Tuner system power supply on/off control signal output terminal
“H” tuner power on Not used (open)
38
DVCC
—
Power supply terminal (+5 V) (for D/A converter)
39
DVSS
—
Ground terminal (for D/A converter)
40, 41
NCO
O
Not used (open)
42
AVCC
—
Power supply terminal (+5 V) (for analog system)
43
AVRH
I
Reference voltage (+5 V) input terminal (for A/D converter)
44
AVRL
I
Reference voltage (0 V) input terminal (for A/D converter)
45
AVSS
—
Ground terminal (for analog system)
46
KEYIN0
I
Key0 input terminal (A/D input )
47
KEYIN1
I
Key1 input terminal (A/D input )
48
RCIN0
I
Rotary remote commander key input terminal (A/D input)
49
DSTSEL
I
Destination setting terminal (A/D input) (fixed at “L”)
50
QUALITY
I
Noise level detection signal input at SEEK mode (A/D input)
51
FM AGC
I
FM AGC detection signal input from the FM/AM tuner unit (TUX201) (A/D input)
52
MPTH
I
Multi-path detection signal input from the RDS decoder (IC201) (A/D input)
Not used (open)
53
VSM
I
FM and AM signal meter voltage detection input from the FM/AM tuner unit
(TUX201) (A/D input)
54
VCC
—
Power supply terminal (+5 V)
55
AMPON
O
Standby on/off control signal output terminal
“L”: standby mode, “H”: amplifier on
56
NS MASK
O
Discharge control signal output for the noise detection circuit “H”: discharge
57
MTLOUT
O
METAL output terminal (METAL on at “L” output) Not used (open)
58
REEL
I
Rotation detect signal input terminal Not used (fixed at “L”)
Tape position (EJECT/FF/REW/REV/FWD mode) detect input from the tape
operation switch on the deck mechanism Not used this function (fixed at “L”)
POS0: “L”: EJECT mode, “H”:others mode
POS1: “L”: FF and FWD mode, “H”: others mode
POS2: “L”: REW mode,“H”: others mode
POS3: “L”: REV and EJECT mode, “H”: others mode
63
VSS
—
Ground terminal
64
NCO
I
Not used (fixed at “L”)
65
FSW IN
I
Frequency count terminal from power control (IC302)
66
LMLOD
O
Loading motor control signal output terminal “H” active
(For the loading direction and forward side operation) Not used (open)
67
CMON
O
Capstan/reel motor control signal output terminal “H”: motor on Not used (open)
68
TAPE ON
O
Tape system power supply on/off control signal output terminal “H”: tape on
Not used (open)
69
FLASH W
I
Internal flash memory data write mode detection signal input terminal
70
I2CSIO
I/O
Two-way data I2C bus with the FM/AM tuner unit (TUX201), RDS decoder (IC201)
and electrical volume (IC301)
71
I2CCKO
O
I2C bus clock signal output to the FM/AM tuner unit (TUX201), RDS decoder
(IC201) and electrical volume (IC301)
72
RCIN1
I
Rotary remote commander shift key input terminal
73
X1A
O
Sub system clock output terminal (32.768 kHz)
74
X0A
I
Sub system clock input terminal (32.768 kHz)
75
DAVN
I
Data transmit completed detection signal input from the RDS decoder (IC201)
“L” active Not used (open)
76
DISCON_IN
I
CD/MD on/off control signal input from the CD mechanism controller (IC5)
77
BUIN
I
Battery detection signal input from the SONY bus interface (IC601) and battery detect
circuit “L” is input at low voltage
59
POS0
I
60
POS1
I
61
POS2
I
62
POS3
I
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