Sony CDX-C880 Service Manual ▷ View online
– 33 –
Pin No.
Pin Name
I/O
Pin Description
52
ASY.I
I
Asymmetry comparate voltage input
53
ASY.O
O
EFM full-swing output (“L” : VSS, “H” : VDD)
54
VC
I
Center voltage input
55
FE
I
Focus error signal input
56
SE
I
Sled error signal input
57
TE
I
Tracking error signal input
58
CE
I
Center error signal input
59
RFDC
I
RF signal input
60
RFC
I
Condenser connection pin for LPF time constant of RF signal.
61
ADIO
O
OP amplifier output (Not used.)
62
AVSS3
—
Analog GND
63
IGEN
I
Current source reference resistor connection for OP amplifier.
64
AVDD3
—
Analog power supply
65, 66
TES2, 3
I
TEST pin (Fixed at “L”.)
67
VSS2
—
Digital GND
68
TEST
I
TEST pin (Fixed at “L”.)
69
SFDR
O
Sled drive output
70
SRDR
O
Sled drive output
71
TFDR
O
Tracking drive output
72
TRDR
O
Tracking drive output
73
FFDR
O
Focus drive output
74
FRDR
O
Focus drive output
75
VDD2
—
Digital power supply
76
COUT
O
Track number count signal output (Not used.)
77
LOCK
O
Not used.
78
MDS
O
Servo control output of spindle motor. (Not used.)
79
MDP
O
Servo control output of spindle motor.
80
SSTP
I
Disc most inner track detection signal input
81
FSTO
O
2/3 frequency division output of pins 103 and 104.
82
FSTI
I
Reference clock input for digital servo.
83
XTSL
I
X’tal select input (“L” : 16.9344 MHz)
84
C4M
O
4.2336 MHz output
85
WDCK
O
D/A interface. Word clock f = 2Fs
86
VDD3
—
Digital power supply
87
LRCK
O
D/A interface. LR clock f = Fs
88
LRCKI
I
LR clock input to DAC. (48 bit slot) (Not used.)
89
PCMD
O
D/A interface. Serial data (2’s COMP, MSB first)
90
PCMDI
I
Audio data input to DAC. (48 bit slot) (Not used.)
91
BCK
O
D/A interface. Bit clock
92
BCKI
I
Bit clock input to DAC. (48 bit slot) (Not used.)
93
EMPH
O
Not used.
94
EMPHI
I
De-emphasis ON/OFF of DAC. (“H” : ON, “L” : OFF) (Not used.)
95
VSS3
—
Digital GND
96
AVSS1
—
L-ch, Analog GND.
97
AVDD1
—
L-ch, Analog power supply.
98
AOUT1
O
L-ch, Analog output. (Not used.)
99
AIN1
I
L-ch, OP amplifier input. (Not used.)
100
LOUT1
O
L-ch, LINE output. (Not used.)
101
AVSS1
—
L-ch, Analog GND.
102
XVDD
—
Analog power supply for master clock.
103
XTAI
I
X’tal oscillator input of master clock (16.9344 MHz).
104
XTAO
O
X’tal oscillator output of master clock. (Not used.)
105
XVSS
—
Analog GND for master clock. (Not used.)
– 34 –
Pin No.
Pin Name
I/O
Pin Description
106
AVSS2
—
R-ch, Analog GND.
107
ROUT2
O
R-ch, LINE output. (Not used.)
108
AIN2
I
R-ch, OP amplifier input. (Not used.)
109
AOUT2
O
R-ch, Analog output. (Not used.)
110
AVDD2
—
R-ch, Analog power supply.
111
AVSS2
—
R-ch, Analog GND.
112
VSS0
—
Digital GND
– 35 –
• IC501 MB90574PFV-G-132-BND (SYSTEM CONTROL) (MAIN BOARD)
Pin No.
Pin Name
I/O
Pin Description
1
SEKOUT
O
SEEK OUT output
2
AF-SEEK
O
AF SEEK output (Not used in this set.)
3
WIDE
O
WIDE/NARROW select output
4
ST-MONO
I/O
Use a thing both as ST-IND display input and force MONO output.
5
TUNMUTE
O
Tuner mute output
6
FM-ON
O
FM ON output
7
TU-ON
O
Tuner ON output
8
VCC
—
Power supply pin (+5 V)
9
CSV-RST
O
Audio composition IC reset output
10
BUSON
O
Bus ON control output
11
SYSRST
O
System reset output
12
DOORSW
I
Door OPEN/CLOSE detection input
13
LCDSO
O
LCD serial data output
14
LCDCKO
O
LCD serial clock output
15
BEEP
O
BEEP output
16
LCDCE
O
LCD chip enable output
17
UNISI
O
Serial data input
18
UNISO
O
Serial data output
19
UNICKI
I/O
Serial clock input/output
20
CSV-DATA
I
Audio composition serial data input
21
CSV-SO
O
Audio composition serial data output
22
CSV-CKO
O
Audio composition serial clock output
23
CSV-CE
O
Audio composition chip enable output
24
SIRCS
I
Remote commander input
25
PLLSI
I
PLL data input
26
PLLSO
O
PLL data output
27
PLLCKO
O
PLL clock output
28
PLLCE
O
PLL chip enable output
29
ILL-ON
O
Illumination power control output
30
DIMMER
I/O
Dimmer control input/output
31
TIRIND
O
TIR indicator control output (Not used in this set.)
32
LCDINH
O
LCD blank display control output
33
VSS
—
GND
34
C
—
Power stabilization capacitor pin
35
AD-ON
O
Power control output of A/D conversion.
36, 37
RE-IN0, 1
I
Rotary encoder input 0, 1
38
DVCC
—
D/A converter VREF input
39
DVSS
—
GND of D/A converter.
40
SD-IN
I
Signal detector input
41
LCDANG
O
LCD view angle alignment output
42
AVCC
—
Analog power supply pin (+5 V)
43
AVRH
—
A/D converter VREF+ input
44
AVRL
—
A/D converter VREF– input
45
AVSS
—
Analog GND
46, 47
KEYIN0, 1
I
Key input 0, 1
48
RC-IN0
I
Rotary commander input 0
49
DSTSEL0
O
CSV power control output
50
DSTSEL1
I
Destination select input 1 (Fixed at “L” in this set.)
51
DSTSEL2
I
Destination select input 2 (Fixed at “L” in this set.) (US model)
Frequency select input (E model)
52
MTP
I
Tuner multi-pass input (Not used in this set.)
53
VSM
I
S-Meter voltage detection input
– 36 –
Pin No.
Pin Name
I/O
Pin Description
54
VCC
—
Power supply pin (+5 V)
55
RAMBU
I
RAM reset detection input
56
POWSEL
I
Power select initial setting input
57
EQ-SEL
I
Equalizer connection with/without detection initial input
58
TESTIN
I
Test mode setting detection input
59
DOORIND
O
Door indicator output
60
TIRPLAY
O
Audio line select control output at CSV.
61, 62
SUB-SW1, 0
O
Simple SUB WOOFER control output 1, 0
63
VSS
—
GND
64
VOLCE
O
Electric volume serial chip enable output
65
MUTE
O
System mute control output
66
VOLSO/SUBSO
O
Main/Sub volume serial data output
67
VOLCKO/SUBCKO
O
Main/Sub volume serial clock output
68
SUBCE
O
Sub volume serial chip enable output
69
FLASH-W
I
Flash write in mode detection input
70
I2CSIO
I
RDS serial data input (Not used in this set.)
71
I2CCKO
I
RDS serial clock input (Not used in this set.)
72
RC-IN1
I
Rotary commander input
73
X1A
—
Low speed oscillation input (32.768 kHz)
74
X0A
—
Low speed oscillation input (32.768 kHz)
75
DAVN
I
RDS IC data taking in detection input (Not used in this set.)
76
KEYACK
I
Key input acknowledge
77
BU-IN
I
Back-up power detection input
78
ILLIN
I
Illumination line detection input
79
TELMUTE
I
Telephone mute detection input
80
NOSESW
I
Front panel detachable detection input
81
ACCIN
I
Accessory power detection input
82 – 85
TIR-D0 – D3
I/O
TIR IC command input/output 0 – 3 (Not used in this set.)
86
HRST
—
Connect to power supply pin.
87
(VSS)
—
Connect to GND.
88, 89
(VCC)
—
Connect to power supply pin.
90
RST
—
Microcomputer reset input
91
VSS
—
GND
92
X0
—
High speed oscillation input (3.68 MHz)
93
X1
—
High speed oscillation input (3.68 MHz)
94
VCC
—
Power supply pin (+5 V)
95
TIR-BUSY
I
TIR IC BUSY output monitor pin (Not used in this set.)
96
TIR-WR
O
TIR IC data write in pulse output (Not used in this set.)
97
TIR-CE
O
TIR IC chip enable output (Not used in this set.)
98
TIR-CE
O
BBE IC chip enable output
99
TIR-RES
O
BBE IC reset/power down output
100
TIR-PDWN
O
BBE IC power down output
101
TIR-RD
O
TIR IC data read in pulse output (Not used in this set.)
102
MTLIN
I
Auto METAL detection input (Not used in this set.)
103
AM STIN
I
AM stereo detection input (Not used in this set.)
104
REEL
I
Tape reel table rotation detection input (Not used in this set.)
105
POS0
I
CD/MD operation detect input 0
106
POS1
I
CD/MD operation detect input 1
107
POS2
I
CD/MD operation detect input 2
108
POS3
I
CD/MD operation detect input 3
109
A-MUTE
I
CD mute signal input
110
EMPH
I
Emphasis signal input
111
LINKOFF
O
Link off output (Not used in this set.)
Click on the first or last page to see other CDX-C880 service manuals if exist.