Sony CDX-C860 / CDX-C860RDS Service Manual ▷ View online
– 29 –
SECTION 4
DIAGRAMS
4-1. IC PIN DESCRIPTIONS
• IC301 CXD2710R (DSP)
• IC301 CXD2710R (DSP)
Pin No.
Pin Name
I/O
Pin Description
1
AMPIN
I
Loop filter amplifier input for PLL.
2
AMPOUT
O
Loop filter amplifier output for PLL.
3
VDD
—
Power supply pin (+5 V)
4
VSS
—
GND
5
AVSS1
—
GND for PLL.
6
VCOC
I
VCO control signal input
7
AVDD1
—
Power supply pin for PLL VCO. (+5 V)
8
—
—
Not used.
9
MCK1
I
Master clock input (768Fs) (Fixed at “H”.)
10
MCK2
I
Master clock input (384Fs) (Fixed at “H”.)
11
MCKOUT
O
Master clock output (Not used.)
12
MCKSEL
I
MCK1/internal VCO select pin (“H” : MCK1, “L” : internal VCO) (Fixed at “L”.)
13
XMUTE
I
Mute signal input of serial interface from DSP system control (IC505).
14
DIN
I
Program data serial input from DSP system control (IC505).
15
VSS
—
GND
16
SCK
I
Program data serial clock input from DSP system control (IC505).
17
XLD
I
Program data load input from DSP system control (IC505).
18
DOUT
O
Internal serial data output to DSP system control (IC505).
19
BUSY
O
Data transfer busy signal output to DSP system control (IC505).
20
XCLK
I
Reset signal input from DSP system control (IC505).
21 – 27
—
—
Connect to GND.
28
VDD
—
Power supply pin (+5 V)
29
VSS
—
GND
30 – 38
—
—
Connect to GND.
39
M1
O
Parallel data output (MSB) (Connect to GND.)
40
VSS
—
GND
41 – 52
M2 – M13
O
Parallel data output (Connect to GND.)
53
VDD
—
Power supply pin (+5 V)
54
VSS
—
GND
55, 56
M14, M15
O
Parallel data output (Connect to GND.)
57
M16
O
Parallel data output (LSB) (Connect to GND.)
58 – 64
—
—
Connect to GND.
65
VSS
—
GND
66 – 74
—
—
Connect to GND.
75, 76
—
—
Fixed at “H”.
77
D.SEL1
I
Serial/parallel select pin (Fixed at “L”.)
78
VDD
—
Power supply pin (+5 V)
79
GND
—
GND
80
D.SEL2
I
Serial/parallel select pin (Fixed at “L”.)
81, 82
—
—
Connect to GND.
83
AVDD2
—
Power supply pin for DRAM. (+5 V)
84
AVSS2
—
GND for D-RAM.
85
AVDD3
—
Power supply pin for DRAM. (+5 V)
86
AVSS3
—
GND for DRAM.
87
SUBDOUT
O
Serial data (1 sampling, 2 channel) output for the sub-woofer speaker.
88
RDOUT
O
Serial data (1 sampling, 2 channel) output for the rear side speaker.
– 30 –
Pin No.
Pin Name
I/O
Pin Description
89
FDOUT
O
Serial data (1 sampling, 2 channel) output for the front side speaker.
90
VSS
—
GND
91
CDDIN
I
Serial data (1 sampling, 2 channel) input for the CD. (Not used.)
92
ADIN
I
Serial data (1 sampling, 2 channel) input for the tuner or bus audio signal.
93
MDIN
I
Serial data (1 sampling, 2 channel) input for the mini-disc. (Fixed at “L”.)
94
BCK
I
Bit clock input of the serial I/O data.
95
LRCK
I
Sampling clock input of the serial I/O data.
96
PCPOUT
O
Error signal output of the PLL phase comparator to DSP system control (IC505).
97
V
O
Divider output for the PLL.
98
VAR
I
PLL phase comparator variable input
99
REF
I
PLL phase comparator reference input
100
PD
I
PLL phase comparator charge pump input
– 31 –
• IC501 µPD78058GC-451-3B9 (MAIN SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Pin Description
1
RE1
I
Rotary encoder (VOLUME) input 1
2, 3
NIL
I
Connect to GND.
4
AVSS
—
GND for A/D conversion.
5
TIMPOL
I
Time poling with/without setting input (Connect to GND.)
6
NIL
I
CONTRAST select input
7
AVREF
—
Reference voltage for D/A conversion.
8
SQ SI
I
Sub Q data input
9
NIL
I
Connect to GND.
10
SQ CKO
O
Sub Q clock output
11
SRDT
I
Text data input
12
XMODE
O
CD-Text decoder Reset & Power down mode select
13
SCLK
O
Text data clock
14, 15
NIL
I
Connect to GND.
16
UNI-SI
I
Serial data input
17
UNI-SO
O
Serial data output
18
UNI-CKI
I
Serial clock input
19
UNI-CKO
O
Serial clock output
20
BUSON
O
BUS ON control output
21 – 23
NCO
—
Not used.
24
CDMON
O
CD mechanism power control output
25
CD ON
O
CD power control output
26
NIL
I
Connect to GND.
27
P ON
O
System power control output
28
NIL
I
Connect to GND.
29
ILL IN
I
Illuminator detection input
30
TEL-MUTE
I
Telephone mute detection input
31
SYSRST
O
System reset control output
32
TSTINO
I
Loading/Eject inhibit setting input
33
VSS
—
GND
34
CAUTION
I
Caution alarm initial setting input (Fixed at “L”.)
35
TV SEL
I
Connect to GND.
36
FBTOSEL
I
Connect to GND.
37
TEST
I
TEST mode direct setting
38
PW SEL
I
Power select initial setting
39
NOSESW
I
Detachable panel detection
40
A MUTE
O
Audio mute control output
41
NCO
—
Not used.
42
AD ON
O
Power control output for A/D conversion.
43
LD ON
O
Laser ON/OFF control output
44
EMPH-O
O
Emphasis control output
45
L SW
I
Sled limit switch input
46
BEEP
O
Buzzer control output
47
CD LAT
O
CD signal process latch output
48
CD SO
O
CD signal process serial data output
49
CD CKO
O
CD signal process serial clock output
50
CD RST
O
CD signal process IC reset output
51
F OK
I
Focus OK signal detection input
– 32 –
Pin No.
Pin Name
I/O
Pin Description
52
ACC-IN
I
Accessory power voltage detection input
53
GFS
I
GFS signal detection input
54
IN SW
I
Disc insert detection input
55, 56
CTL1, 2
O
Driver IC control output 1, 2
57
D SW
I
DOWN switch detection input
58
LM EJ
O
Loading motor control output (Eject direction)
59
LM LOD
O
Loading motor control output (Loading direction)
60
RESET
I
Reset input
61
SIRCS
I
Remote commander input
62
BU IN
I
Back-up power detection input
63
KEYACK
I
Key input acknowledge (WAKE UP)
64
SELF SW/SCORE
I
Disc self store detection input
65
SENS
I
SENS signal detection input
66
CNIN
I
Track jump number count input
67
DQSY
I
Text data request input
68
VDD
—
Power supply for microcomputer.
69
X2
O
Main crystal oscillator output pin (5 MHz)
70
X1
I
Main crystal oscillator input pin (5 MHz)
71
GND
—
GND for microcomputer.
72
XT2
O
Sub crystal oscillator output pin (32.768 kHz)
73
XT1
I
Sub crystal oscillator input pin (32.768 kHz)
74
AVDD
—
Power supply for A/D conversion.
75
AVREF
—
Reference power supply for A/D conversion.
76, 77
KEYIN0, 1
I
Key input 0, 1
78, 79
RC IN0, 1
I
Rotary commander input 0, 1
80
RE0
I
Rotary encoder (VOLUME) input 0
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