Sony DAV-C770 / HCD-C770 / HCD-C990 Service Manual ▷ View online
89
HCD-C770/C990
Pin No.
Pin Name
I/O
Description
53
MUTE DSD
O
Muting on/off control signal output to the DSD decoder “H”: muting on
54
SQCK
O
Subcode Q data reading clock signal output to the digital signal processor
55
VSS
—
Ground terminal (digital system)
56
TRAY IN
I
Disc tray in detection signal input terminal Not used
57
TRAY OUT
I
Disc tray out detection signal input terminal Not used
58
GFS DVD
I
Guard frame sync signal input from the DVD decoder
59
MUTE CD
O
Muting on/off control signal output to the digital signal processor “H”: muting on
60
MUTE 2D
O
Muting on/off control signal output to the motor/coil driver “H”: muting on
61
SLED
I
Sled motor servo drive PWM signal input terminal
62
FG
I
Spindle motor control signal input
63
SP ON
O
Muting on/off control signal output to the motor/coil driver “H”: muting on
64
JIT
I
Jitter signal input
65
TE
I
Tracking error signal input from the DVD/CD RF amplifier
66
PI
I
Pull in signal input from the DVD/CD RF amplifier
67
FE
I
Focus error signal input from the DVD/CD RF amplifier
68
AVSS
—
Ground terminal (for A/D converter)
69
AVREF
I
Reference voltage input terminal (for A/D converter)
70
AVDD
—
Power supply terminal (+3.3V) (for A/D converter)
71
GFS CD
I
Guard frame sync signal input from the digital signal processor
72
SCLK CD
O
SENSE serial data reading clock signal output to the digital signal processor
73
TSD
O
Thermal shut down signal output to the motor/coil driver
74
FOK CD
I
Focus OK signal input from the digital signal processor
75
LOCK CD
I
GFS is sampled by 460 Hz “H” input when GFS is “H”
76
LDSEL
O
Laser diode selection signal output
77
SACD/DVD
O
SACD/DVD selection signal output “L”: DVD, “H”: SACD
78
I2C SIO
I/O
Communication data bus with the DVD system processor and system controller
79
IIC-CLK
I/O
Communication data reading clock signal input or transfer clock signal output with the DVD
system processor and system controller
system processor and system controller
80
RXD
I
Serial data input from the RS-232C (for check)
81
TXD
O
Serial data output to the RS-232C (for check)
82
SDCLK RF
O
Serial data transfer clock signal output to the DVD/CD RF amplifier
83
SDATA RF
I/O
Two-way data bus with the DVD/CD RF amplifier
84
XWR
O
Write strobe signal output to the DVD decoder
85
XRD
O
Read strobe signal output to the DVD decoder
86
(PWE)
—
Not used
87
VDD
—
Power supply terminal (+3.3V) (digital system)
88
VSS
—
Ground terminal (digital system)
89 to 96
A0 to A7
O
Address signal output to the DVD decoder
97
DSAVE
O
Motor/coil driver power save control signal output terminal Not used
98
XDRST
O
Reset signal output to the digital signal processor and DSD decoder “L”: reset
99
EEP WP
O
Write protect signal output to the EEPROM
100
EEP CLK
O
Clock signal output to the EEPROM
90
HCD-C770/C990
•
DVD BOARD IC401 CXD3068Q (DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO PROCESSOR)
Pin No.
Pin Name
I/O
Description
1
DVDD0
—
Power supply terminal (+3.3V) (digital system)
2
XRST
I
Reset signal input from the mechanism controller “L”: reset
3
MUTE
I
Muting on/off control signal input from the mechanism controller “H”: muting on
4
DATA
I
Serial data input from the mechanism controller
5
XLAT
I
Serial data latch pulse signal input from the mechanism controller
6
CLOK
I
Serial data transfer clock signal input from the mechanism controller
7
SENS
O
Internal status (SENSE) signal output to the mechanism controller
8
SCLK
I
SENSE serial data reading clock signal input from the mechanism controller
9
ATSK
I/O
Input/output terminal for anti-shock Not used
10
WFCK
O
Write frame clock signal output to the DVD decoder
11
RFCK
O
RFCK signal output terminal Not used
12
XPCK
O
XPCK signal output terminal Not used
13
GFS
O
Guard frame sync signal output to the mechanism controller
14
C2PO
O
C2 pointer signal output to the DVD decoder
15
SCOR
O
Subcode sync (S0+S1) detection signal output to the DVD decoder and mechanism controller
16
C4M
O
4.2336 MHz clock signal output terminal Not used
17
WDCK
O
Guard subcode sync (S0+S1) detection signal output to the DVD decoder
18
DVSS0
—
Ground terminal (digital system)
19
COUT
O
Numbers of track counted signal output to the mechanism controller
20
MIRR
O
Mirror signal output to the mechanism controller
21
DFCT
I/O
Defect signal input/output terminal Not used
22
FOK
O
Focus OK signal output to the mechanism controller
23
PWMI
I
Spindle motor external control signal input terminal Not used
24
LOCK
O
GFS is sampled by 460 Hz “H” output when GFS is “H”
25
MDP
O
Spindle motor servo drive signal output to the DVD decoder
26
SSTP
I
Detection signal input from limit in switch The optical pick-up is inner position when “H”
27
FSTO
O
2/3 divider output terminal Not used
28
DVDD1
—
Power supply terminal (+3.3V) (digital system)
29
SFDR
O
Sled servo drive PWM signal (+) output
30
SRDR
O
Sled servo drive PWM signal (–) output
31
TFDR
O
Tracking servo drive PWM signal (+) output
32
TRDR
O
Tracking servo drive PWM signal (–) output
33
FFDR
O
Focus servo drive PWM signal (+) output
34
FRDR
O
Focus servo drive PWM signal (–) output
35
DVSS1
—
Ground terminal (digital system)
36
TEST
I
Input terminal for the test
37
TES1
I
Input terminal for the test
38
VC
I
Middle point voltage (+1.65V) input terminal
39
FE
I
Focus error signal input from the DVD/CD RF amplifier
40
SE
I
Sled error signal input from the DVD/CD RF amplifier
41
TE
I
Tracking error signal input from the DVD/CD RF amplifier
42
CE
I
Middle point servo analog signal input
43
RFDC
I
RF signal input from the DVD/CD RF amplifier
44
ADIO
O
Output terminal for the test Not used
45
AVSS0
—
Ground terminal (analog system)
46
IGEN
I
Stabilized current input for operational amplifiers
91
HCD-C770/C990
Pin No.
Pin Name
I/O
Description
47
AVDD0
—
Power supply terminal (+3.3V) (analog system)
48
ASYO
O
EFM full-swing output terminal
49
ASYI
I
Asymmetry comparator voltage input terminal
50
RFAC
I
EFM signal input from the DVD/CD RF amplifier
51
AVSS1
—
Ground terminal (analog system)
52
CLTV
I
Internal VCO control voltage input terminal
53
FILO
O
Filter output for master PLL
54
FILI
I
Filter input for master PLL
55
PCO
O
Charge pump output for master PLL
56
AVDD1
—
Power supply terminal (+3.3V) (analog system)
57
BIAS
I
Asymmetry circuit constant current input terminal
58
VCTL
I
VCO control voltage input terminal for the wideband EFM PLL Not used
59
V16M
O
VCO oscillation output terminal for the wideband EFM PLL Not used
60
VPCO
O
Charge pump output terminal for the wideband EFM PLL Not used
61
DVDD2
—
Power supply terminal (+3.3V) (digital system)
62
ASYE
I
Asymmetry circuit on/off control signal input terminal “L”: off, “H”: on Not used
63
MD2
I
Digital out on/off control signal input from the mechanism controller
“L”: digital out off, “H”: digital out on
“L”: digital out off, “H”: digital out on
64
DOUT
O
Digital audio signal output to the digital audio interface IC
65
LRCK
O
L/R sampling clock signal (44.1 kHz) output to the DVD decoder
66
PCMD
O
Serial data output to the DVD decoder
67
BCLK
O
Bit clock signal (2.8224 MHz) output to the DVD decoder
68
EMPH
O
“L” is output when playback disc is emphasis off
“H” is output when playback disc is emphasis on Not used
“H” is output when playback disc is emphasis on Not used
69
XTSL
I
Input terminal for the system clock frequency setting
“L”: 16.9344 MHz, “H”: 33.8688MHz Fixed at “H” in this set
“L”: 16.9344 MHz, “H”: 33.8688MHz Fixed at “H” in this set
70
DVSS2
—
Ground terminal (digital system)
71
XTAI
I
System clock input terminal (33.8688 MHz)
72
XTAO
O
System clock output terminal (33.8688 MHz) Not used
73
SOUT
O
Serial data output terminal Not used
74
SOCK
O
Serial data reading clock signal output terminal Not used
75
XOLT
O
Serial data latch pulse signal output terminal Not used
76
SQSO
O
Subcode Q data output to the mechanism controller
77
SQCK
I
Subcode Q data reading clock signal input from the mechanism controller
78
SCSY
I
Input terminal for resynchronism of guard subcode sync (S0+S1) Not used
79
SBSO
O
Subcode serial data output to the DVD decoder
80
EXCK
I
Subcode serial data reading clock signal input to the DVD decoder
92
HCD-C770/C990
•
DVD BOARD IC607 CXD9617R (AUDIO DIGITAL SIGNAL PROCESSOR)
Pin No.
Pin Name
I/O
Description
1
VSS
—
Ground terminal
2
XRST
I
Reset signal input from the system controller “L”: reset
3
EXTIN
I
Master clock signal input terminal Not used
4
FS2
I
Sampling frequency selection signal input terminal Not used
5
VDDI
—
Power supply terminal (+2.6V)
6
FS1
I
Sampling frequency selection signal input terminal Not used
7
PLOCK
O
Internal PLL lock signal output terminal Not used
8
VSS
—
Ground terminal
9
MCLK1
I
System clock signal input terminal (13.5 MHz)
10
VDDI
—
Power supply terminal (+2.6V)
11
VSS
—
Ground terminal
12
MCLK2
O
System clock signal output terminal (13.5 MHz)
13
MS
I
Master/slave selection signal input terminal “L”: slave, “H”: master (fixed at “L” in this set)
14
SCKOUT
O
Internal system clock signal output to the D/A converter and stream processor
15
LRCKI1
I
L/R sampling clock signal (44.1 kHz) input from the digital audio processor
16
VDDE
—
Power supply terminal (+3.3V)
17
BCKI1
I
Bit clock signal (2.8224 MHz) input from the digital audio processor
18
SDI1
I
Front L-ch and R-ch audio serial data input from the digital audio processor
19
LRCKO
O
L/R sampling clock signal (44.1 kHz) output to the D/A converter and stream processor
20
BCKO
O
Bit clock signal (2.8224 MHz) output to the D/A converter and stream processor
21
VSS
—
Ground terminal
22
KFSIO
I
Audio clock signal (11.2896 MHz) input from the digital audio processor
23
SDO1
O
Front L-ch and R-ch audio serial data output to the stream processor
24
SDO2
O
Center and woofer audio serial data output to the stream processor
25
SDO3
O
Rear L-ch and R-ch audio serial data output to the stream processor
26
SDO4
O
Audio serial data output to the D/A converter
27
SPDIF
O
S/PDIF signal output terminal Not used
28
LRCKI2
I
L/R sampling clock signal (44.1 kHz) input from the A/D converter
29
BCKI2
I
Bit clock signal (2.8224 MHz) input from the A/D converter
30
SDI2
I
Center and woofer audio serial data input from the digital audio processor
31
VSS
—
Ground terminal
32
HACN
O
Acknowledge signal output to the system controller
33
HDIN
I
Write data input from the system controller
34
HCLK
I
Clock signal input from the system controller
35
HDOUT
O
Read data output to the system controller
36
HCS
I
Chip select signal input from the system controller
37
SDCLK
O
Clock signal output terminal Not used
38
CLKEN
O
Clock enable signal output terminal Not used
39
RAS
O
Row address strobe signal output terminal Not used
40
VDDI
—
Power supply terminal (+2.6V)
41
VSS
—
Ground terminal
42
CAS
O
Column address strobe signal output terminal Not used
43
DQM
O
Output terminal of data input/output mask Not used
44
CS0
O
Chip select signal output to the S-RAM
45
WE0
O
Write enable signal output to the S-RAM
Click on the first or last page to see other DAV-C770 / HCD-C770 / HCD-C990 service manuals if exist.