Sony HCD-MD333 - Hi Fi Cd/minidisc Component Service Manual page 63

• IC121 Digital Signa; Processor, Digitak Servo Signal Processor, EFM/ACIRC Encoder/Decoder, Shock-proof Memory
Controller, ATRAC Encoder/Decoder, 2M Bit DRAM (CXD2652R) (BD (MD) Board)
Pin No. Pin Name
1 MNT0 (FOK)
2 MNT1 (SHCK)
3 MNT2 (XBUSY)
4 MNT3 (SLOC)
5 SWDT
6 SCLK
7 XLAT
8 SRDT
9 SENS
10 XRST
11 SQSY
12 DQSY
13 RECP
14 XINT
15 TX
16 OSCI
17 OSCO
18 XTSL
19 RVDD
20 RVSS
21 DIN
22 DOUT
23 ADDT
24 DADT
25 LRCK
26 XBCK
27 FS256
28 DVDD
29 A03
30 A02
31 A01
32 A00
33 A10
34 A04
35 A05
36 A06
37 A07
38 A08
39 A11
* I (A) for analog input, O (3) for 3-state output, and O (A) for analog output in the column I/O.
I/O
Focus OK signal output to the MD system controller (IC316)
O
"H" is output when focus is on
O Track jump detection signal output to the MD system controller (IC316)
O Monitor 2 signal output to the MD system controller (IC316)
O Monitor 3 signal output to the MD system controller (IC316)
I Writing data signal input from the MD system controller (IC316)
I Serial clock signal input from the MD system controller (IC316)
I Serial latch signal input from the MD system controller (IC316)
O (3) Reading data signal output to the MD system controller (IC316)
O (3) Internal status (SENSE) output to the MD system controller (IC316)
I Reset signal input from the MD system controller (IC316) "L": reset
Subcode Q sync (SCOR) output to the MD system controller (IC316)
O
"L" is output every 13.3 msec Almost all, "H" is output
Digital In U-bit CD format subcode Q sync (SCOR) output to the MD system controller
O
(IC316) "L" is output every 13.3 msec Almost all, "H" is output
Laser power selection signal input from the MD system controller (IC316)
I
"H": recording mode, "L": playback mode
O Interrupt status output to the MD system controller (IC316)
Recording data output enable signal input from the MD system controller (IC316)
I
Writing data transmission timing input (Also serves as the magnetic head on/off output)
I System clock signal (512Fs=22.5792 MHz) input terminal
O System clock signal (512Fs=22.5792 MHz) output terminal
Input terminal for the system clock frequency setting "L": 45.1584 MHz, "H": 22.5792
I
MHz (fixed at "H" in this set)
— Power supply terminal (+3.3V) (digital system)
— Ground terminal (digital system)
I Digital audio signal input terminal when recording mode (for optical in)
O Digital audio signal output terminal when playback mode (for optical out) Not used
I Recording data input from the A/D, D/A converter (IC201)
O Playback data output to the A/D, D/A converter (IC201)
O L/R sampling clock signal (44.1 kHz) output to the A/D, D/A converter (IC201)
O Bit clock signal (2.8224 MHz) output to the A/D, D/A converter (IC201)
O Clock signal (11.2896 MHz) output to the A/D, D/A converter (IC201)
— Power supply terminal (+3.3V) (digital system)
O
O
O
O
O
O Address signal output to the external D-RAM (IC124)
O
O
O
O
O
– 89 –
Function