Sony CDX-C8850 Service Manual page 33
Fm/am compact disc player
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Also See for CDX-C8850:
- Operating instructions manual (52 pages) ,
- Limited warranty (1 page) ,
- Service manual (82 pages)
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3 7 63 1515 0
Pin No.
55
VOL LOAD
56
VOL DATA L
57
VOL DATA R
58
59
60
61
62
63
64
65
66
67
68
69
CD/MD ON
70
71
72
73
74
75
76
77
78
TE
L 13942296513
79
80
81
82
83
TEL MUTE
84
85
86
87
88, 89
90
91
92
93
94
95
96
97
98
AMP-STBY
99 – 102
103
104
105
www
106
107
108
.
109
110
111
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Pin Name
I/O
O
Electronic volume IC data latch output
O
Electronic volume L-ch setting data output
O
Electronic volume R-ch setting data output
VOL CLK
O
Electronic volume setting clock output
DSP XLAT
O
Data latch output to digital signal processor.
RC IN1
I
Rotary commander shift switch input
ACC IN
I
Accessory signal input
POW ON
O
System power ON/OFF control output
VSS
—
Ground
BOOT
O
Low output at display micon rewriting.
PWM
I
PWM control input
NCO
—
Not used. (Open)
RDS DAVN
I
RDS IC data reception mode read input
CD/MD
I
CD/MD mechanism deck setting input ("L" : CD mechanism deck)
I
CD/MD servo B+ detection input
I2C SDA
I/O
For communication with device connected to I
I2C SCL
I/O
For communication with device connected to I
SHIFT
O
Shift signal output
X1A
O
Low speed frequency output (32.768 kHz)
X0A
I
Low speed frequency input (32.768 kHz)
NCO
—
Not used. (Open)
KEY ACK
I
Key input detection at micon sleeping.
BU IN
I
Back-up power supply detection input
SP LAT
O
Spectrum analyzer data latch output
DSP REDY
I
Ready signal input from digital signal processor.
TEST
I
Test input
EMPH
I
Emphasis signal input at MD/CD play. ("H" : emphasis ON)
WAKE UP
O
DC/DC converter power supply ON/OFF control output (Not used in this set.)
I
Audio signal muting input ("L" : mute ON)
TU ON
O
Tuner power supply ON/OFF output
ILL IN
I
Illumination signal input
HSTX
I
Hardware standby input
MD2
I
Operation mode designation input (Fixed at "L" in this set.)
MD1, 0
I
Operation mode designation input (Fixed at "H" in this set.)
RST
I
Reset input
VSS
—
Ground
X0
I
High speed frequency input (3.68 MHz)
X1
O
High speed frequency output (3.68 MHz)
VCC
—
Power supply pin (+5 V)
DOOR IND
O
Front panel door indicator output
DSP ON
O
Digital signal processor power control output
NCO
—
Not used. (Open)
O
Power amplifier standby signal output
TIR D0 – 3
O
Not used. (Open)
TIR RD
O
Not used. (Open)
TIR WR
O
Not used. (Open)
TIR CE1
O
Not used. (Open)
TIR CE0
O
Not used. (Open)
x
ao
y
AD ON
O
Power control output to keys.
NCO
—
Not used. (Open)
i
NOSE SW
I
Front panel attachment detection input
CSV REQ
I
Data transfer request input from CSV control IC.
CSV CE
O
Chip enable output to CSV control IC.
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8
Q Q
3
6 7
1 3
u163
.
2 9
9 4
2 8
Pin Description
2
C-bus.
2
C-bus.
1 5
0 5
8
2 9
9 4
m
co
9 9
2 8
9 9
33
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