Diagrams; Ic Pin Descriptions - Sony CDX-M620 Service Manual

4-1. IC PIN DESCRIPTIONS

• IC501 CXD2598Q (DIGITAL SERVO, DIGITAL SIGNAL PROCESSOR) (SERVO BOARD)
Pin No. Pin Name
1 DVDD
2 DVSS
3 SOUT
4 SOCK
5 XOLT
6 SQSO
7 SQCK
8 SCSY
9 SBSO
10 EXCK
11 XRST
12 STSM
13 DATA
14 XLAT
15 CLOK
16 SENS
17 SCLK
18 ATSK
19 WFCK
20 XUGF
21 XPCK
22 GFS
23 C2PO
24 SCOR
25 C4M
26 WDCK
27 COUT
28 MIRR
29 DVSS
30 DVDD
31 DFCT
32 FOK
33 PWM1
34 LOCK
35 MDP
36 SSTP
37 FSTIO
38 SFDR
39 SRDR
40 TFDR
41 TRDR
42 FFDR
43 FRDR
44 DVDD
45 DVSS
46 TEST
47 TES1
48 XTSL
49 VC
50 FE
51 SE
SECTION 4

DIAGRAMS

I/O
— Digital power supply pin
— Digital ground
O Servo brock serial data output (Not used.)
O Servo brock serial data read clock output (Not used.)
O Servo brock serial data latch output (Not used.)
O Sub Q 80 bit, PCM peak and level data output. CD TEXT data output
I Clock input from SQSO read out.
I Fixed at "L".
O Serial output of sub-P to W. (Not used.)
I Clock input from SBSO read out. (Fixed at "L")
I System reset ("L": Reset)
I System mute input (Fixed at "L")
I Serial data input from CPU.
I Latch input from CPU. Latch serial data at the falling edge.
I Serial data transfer clock input from CPU.
O SENS output for CPU.
I Clock input from SENS serial data read.
I/O Input/output for anti-shock.
O WFCK (Write Flame Clock) output (Not used.)
O XUGF output (Not used.)
O XPCK output (Not used.)
O GFS output
O C2PO output (Not used.)
O "H" output at either detection, sub code sync S0 or S1.
O 4.2336 MHz output (Not used.)
O Word clock output f=2Fs (Not used.)
I/O Track number count signal input/output (Not used.)
I/O Mirror signal input/output (Not used.)
— Digital ground
— Digital power supply pin
I/O Diffect signal input/output (Not used.)
I/O Focus OK signal input/output
I External control input of spindle motor.
I/O Lock signal input/output
O Servo control output of spindle motor.
I Disc most inner track detection signal input
I/O 2/3 frequency division input/output of pins ih and ij. (Not used.)
O Sled drive output
O Sled drive output
O Tracking drive output
O Tracking drive output
O Focus drive output
O Focus drive output
— Digital power supply pin
— Digital ground
I Test pin (Fixed at "L".)
I Test pin (Fixed at "L".)
I X'tal select input ("L": 16.9344 MHz, "H": 33.8688 MHz)
I Center voltage input
I Focus error signal input
I Sled error signal input
CDX-M620/M670
Pin Description
25