Ic Pin Function Description - Sony MDX-C8900R Service Manual

4-23. IC PIN FUNCTION DESCRIPTION

• SERVO BOARD IC301 CXD2652AR
(DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO PROCESSOR, EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER, ATRAC ENCODER/DECODER, 2M BIT D-RAM)
Pin No. Pin Name
1 MNT0
2 MNT1
3 MNT2
4 MNT3
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/O
Focus OK signal output to the MD mechanism controller (IC501)
O
"H" is output when focus is on ("L": NG)
O
Track jump detection signal output to the MD mechanism controller (IC501)
O
Monitor 2 signal output to the MD mechanism controller (IC501)
O Monitor 3 signal output to the MD mechanism controller (IC501)
I
Writing serial data signal input from the MD mechanism controller (IC501)
I
Serial data transfer clock signal input from the MD mechanism controller (IC501)
I
Serial data latch pulse signal input from the MD mechanism controller (IC501)
O (3) Reading serial data signal output to the MD mechanism controller (IC501)
O (3)
Internal status (SENSE) output to the MD mechanism controller (IC501)
I Reset signal input from the MD mechanism controller (IC501) "L": reset
Subcode Q sync (SCOR) output to the MD mechanism controller (IC501)
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
Laser power selection signal input terminal
I
"H": recording mode, "L": playback mode (fixed at "L" in this set)
O Interrupt status output to the MD mechanism controller (IC501)
Recording data output enable signal input terminal
I
Writing data transmission timing input (Also serves as the magnetic head on/off output)
Not used (fixed at "L")
I System clock signal (512Fs=22.5792 MHz) input from the oscillator circuit
O System clock signal (512Fs=22.5792 MHz) output terminal Not used (open)
Input terminal for the system clock frequency setting
I
"L": 45.1584 MHz, "H": 22.5792 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) Not used (fixed at "L")
O Digital audio signal output terminal when playback mode (for optical out) Not used (open)
I Recording data input terminal Not used (fixed at "L")
O Playback data output to the D/A converter (IC101)
O L/R sampling clock signal (44.1 kHz) output to the D/A converter (IC101)
O Bit clock signal (2.8224 MHz) output to the D/A converter (IC101)
O
Clock signal (11.2896 MHz) output to the D/A converter (IC101)
— Power supply terminal (+3.3V) (digital system)
O
O
Address signal output to the D-RAM (IC307)
O
O
Address signal output to the external D-RAM Not used (open)
O
O
O
O Address signal output to the D-RAM (IC307)
O
O
O Address signal output to the external D-RAM Not used (open)
Function
Almost all, "H" is output
Almost all, "H" is output Not used (open)
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