Sony HCD-C990 Service Manual - Page 88

Function, Description

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HCD-C770/C990 7-40. IC PIN FUNCTION DESCRIPTION • DVD BOARD IC301 CXP973064-220R (MACHANISM CONTROLLER) Pin No. Pin Name I/O Description 1 EEP SO O Not used 2 SDEN O Serial data enable signal output to DVD/CD RF amplifier 3 DOCTRL/ O Digital out on/off control signal output to the digital signal processor ISBTEST "L": digital out off, "H": digital out on 4 EEP WC O Not used 5 EEP SI I/O Two-way data bus with the EEPROM 6 EEP RDY I EEPROM ready signal input from the DVD decoder 7 FCS JMP 1 O Focus jump 1 signal output to the motor/coil driver 8 FCS JMP 2 O Focus jump 2 signal output to the motor/coil driver 9 SENS CD I Internal status (SENSE) signal input from the digital signal processor 10 LOAD + O Loading motor drive signal (loading in direction) output terminal Not used 11 LOAD - O Loading motor drive signal (loading out direction) output terminal Not used 12 XCS DVD O Chip select signal output to the DVD decoder 13 VSS - Ground terminal (digital system) 14 to 21 D0 to D7 I/O Two-way data bus with the DVD decoder 22 INIT0 DVD I Interrupt signal input from the DVD decoder 23 INIT1 DVD I Interrupt signal input from the DVD decoder 24 SCK DSD O Serial data transfer clock signal output to the DSD decoder 25 XRST DVD O Reset signal output to the DVD decoder "L": reset 26 SCOR I Subcode sync (S0+S1) detection signal input from the digital signal processor 27 LAT CD O Serial data latch pulse signal output to the digital signal processor 28 LD ON O Laser diode on/off control signal output to the DVD/CD RF amplifier "L": laser diode off, "H": laser diode on 29 MIRR I Mirror signal input from the digital signal processor 30 COUT CD I Numbers of track counted signal input from the digital signal processor 31 INLIM I Detection signal input from limit in switch The optical pick-up is inner position when "H" 32 CS ZIVA O Chip select signal output to the DVD system processor 33 SI ZIVA I Serial data input from the DVD system processor 34 SO ZIVA O Serial data output to the DVD system processor 35 SCK ZIVA O Serial data transfer clock signal output to the DVD system processor 36 DRVIRQ O Interrupt request signal output to the DVD system processor 37 DRVRDY O Ready signal output to the DVD system processor 38 RST I System reset signal input from the DVD system processor "L": reset 39 VSS - Ground terminal (digital system) 40 XTAL I System clock input terminal (20 MHz) 41 EXTAL O System clock output terminal (20 MHz) 42 VDD - Power supply terminal (+3.3V) (digital system) 43, 44 SLED A, SLED B O Sled motor drive signal output 45 JIT OFFSET O Output terminal for offset adjustment of APEO (

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88
HCD-C770/C990
7-40.
IC
PIN
FUNCTION
DESCRIPTION
•
DVD BOARD
IC301 CXP973064-220R (MACHANISM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
EEP SO
O
Not used
2
SDEN
O
Serial data enable signal output to DVD/CD RF amplifier
3
DOCTRL/
ISBTEST
O
Digital out on/off control signal output to the digital signal processor
“L”: digital out off, “H”: digital out on
4
EEP WC
O
Not used
5
EEP SI
I/O
Two-way data bus with the EEPROM
6
EEP RDY
I
EEPROM ready signal input from the DVD decoder
7
FCS JMP 1
O
Focus jump 1 signal output to the motor/coil driver
8
FCS JMP 2
O
Focus jump 2 signal output to the motor/coil driver
9
SENS CD
I
Internal status (SENSE) signal input from the digital signal processor
10
LOAD +
O
Loading motor drive signal (loading in direction) output terminal
Not used
11
LOAD –
O
Loading motor drive signal (loading out direction) output terminal
Not used
12
XCS DVD
O
Chip select signal output to the DVD decoder
13
VSS
—
Ground terminal (digital system)
14 to 21
D0 to D7
I/O
Two-way data bus with the DVD decoder
22
INIT0 DVD
I
Interrupt signal input from the DVD decoder
23
INIT1 DVD
I
Interrupt signal input from the DVD decoder
24
SCK DSD
O
Serial data transfer clock signal output to the DSD decoder
25
XRST DVD
O
Reset signal output to the DVD decoder
“L”: reset
26
SCOR
I
Subcode sync (S0+S1) detection signal input from the digital signal processor
27
LAT CD
O
Serial data latch pulse signal output to the digital signal processor
28
LD ON
O
Laser diode on/off control signal output to the DVD/CD RF amplifier
“L”: laser diode off, “H”: laser diode on
29
MIRR
I
Mirror signal input from the digital signal processor
30
COUT CD
I
Numbers of track counted signal input from the digital signal processor
31
INLIM
I
Detection signal input from limit in switch
The optical pick-up is inner position when “H”
32
CS ZIVA
O
Chip select signal output to the DVD system processor
33
SI ZIVA
I
Serial data input from the DVD system processor
34
SO ZIVA
O
Serial data output to the DVD system processor
35
SCK ZIVA
O
Serial data transfer clock signal output to the DVD system processor
36
DRVIRQ
O
Interrupt request signal output to the DVD system processor
37
DRVRDY
O
Ready signal output to the DVD system processor
38
RST
I
System reset signal input from the DVD system processor
“L”: reset
39
VSS
—
Ground terminal (digital system)
40
XTAL
I
System clock input terminal (20 MHz)
41
EXTAL
O
System clock output terminal (20 MHz)
42
VDD
—
Power supply terminal (+3.3V) (digital system)
43, 44
SLED A, SLED B
O
Sled motor drive signal output
45
JIT OFFSET
O
Output terminal for offset adjustment of APEO (
<z/.
pin of DVD decoder)
46
SDOUT DSD
O
Serial data output to the DSD decoder
47
SDIN DSD
I
Serial data input from the DSD decoder
48
READY DSD
I
Ready signal input from the DSD decoder
“L”: ready
49
DATA CD
O
Serial data output to the digital signal processor
50
CLOK CD
O
Serial data transfer clock signal output to the digital signal processor
51
XMSLAT
O
Serial data latch pulse signal output to the DSD decoder
52
SQSO
I
Subcode Q data input from the digital signal processor