Sony MDS-DRE1 Service Manual page 53

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BD BOARD IC121 CXD2535CR
(DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO PROCESSOR, EFM/ACIRC ENCODER/DECODER
Pin No. Pin Name
1 FS256
2 FOK
3 DFCT
4 SHCK
5 SHCKEN
6 WRPWR
7 DIRC
8 SWDT
9 SCLK
10 XLAT
11 SRDT
12 SENS
13 ADSY
14
SQSY
15 DQSY
16 XRST
17 TEST4
18 CLVSCK
19 TEST5
20 DOUT
21 DIN
22 FMCK
23 ATER
24 REC
25 DVSS
26 DOVF
27 DODT
28 DIDT
29 DTI
30 DTO
31 C2PO
32 BCK
33 LRCK
34 XTAO
35 XTAI
* I (A) for analog input, O (3) for 3-state output, and O (A) for analog output in the column I/O.
I/O
O
Clock signal (11.2896 MHz) output terminal (MCLK system) Not used (open)
Focus OK signal output to the system controller (IC101)
O
"H" is output when focus is on ("L": NG)
O Defect on/off selection signal output terminal Not used
O
Track jump detection signal output to the system controller (IC101)
I
Track jump detect enable input terminal Fixed at "H" in this set
Laser power selection signal input from the system controller (IC101)
I
"L": playback mode, "H": recording mode
I
Not used (fixed at "H")
I
Writing serial data input from the system controller (IC101)
I
Serial data transfer clock signal input from the system controller (IC101)
I
Serial data latch pulse signal input from the system controller (IC101)
O
Reading serial data output to the system controller (IC101)
O (3) Internal status (SENSE) output to the system controller (IC101)
O
ADIP sync signal output terminal Not used (open)
Subcode Q sync (SCOR) output to the system controller (IC101)
O
"L" is output every 13.3 msec
Digital In U-bit CD format subcode Q sync (SCOR) output terminal
O
"L" is output every 13.3 msec
I
Reset signal input from the system controller (IC101) "L": reset
I Input terminal for the test (fixed at "L")
O
System clock signal output of the CLV Not used (open)
I Input terminal for the test (fixed at "L")
Digital audio signal output terminal when playback mode (for digital optical out/digital coaxial
O
out) Not used
Digital audio signal input terminal when recording mode (for digital optical in/digital coaxial in)
I
Not used (fixed at "L")
O
FM demodulation clock signal output of the ADIP Not used (open)
O
ADIP CRC flag output terminal Error present when "H" output Not used (open)
Recording/playback selection signal input from the system controller (IC101)
I
"L": playback mode, "H": recording mode
— Ground terminal (digital system)
I Validity flag input for the digital audio output Fixed at "L" in this set
I Serial data input from the ATRAC encoder (IC501)
O Serial data output terminal Not used
I Recording audio data input from the ATRAC encoder (IC501)
O (3) Playback audio data output to the ATRAC decoder (IC601)
C2PO signal (indicate output of the data error status) output to the ATRAC encoder (IC501) and
ATRAC decoder (IC601)
O
Playback mode: C2PO ("H"), Digital recording mode: digital in validity flag, Analog recording
mode: "L"
Serial in/out data bit clock signal (2.8224 MHz) output to the ATRAC encoder (IC501) and
O
ATRAC decoder (IC601) (MCLK system)
L/R sampling clock signal (44.1 kHz) output to the ATRAC encoder (IC501) and ATRAC
O
decoder (IC601) (MCLK system)
O System clock signal (512Fs=22.5792 MHz) output terminal Not used (open)
I System clock signal (512Fs=22.5792 MHz) input from the ATRAC encoder (IC501)
Function
Almost all, "H" is output
Almost all, "H" is output Not used (open)
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