Aiwa CDC-X447M Manual de servicio descargar pdf (Pagina 23)

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1 SQSO O Sub-Q 80-bit and PCM peak/level data output. CD TEXT data output.

2 SQCK I Clock input for reading SQSO.

3 XRST I System reset. Reset at "L".

4 SYSM I Muting input. Muted at "H".

5 DATA I Serial data input from CPU.

6 XLAT I Latch input from CPU. Latches serial data at the trailing edge.

7 CLOK I Clock input for serial data transfer from CPU.

8 SENS O SENS output to CPU.

9 SCLK I Clock input for reading SENS serial data.

10 VDD – Power supply of digital circuits.

11 ATSK I/O Input/output for anti-shock. (Connected to ground)

12 SPOA I Microprocessor extended interface (input A). (Connected to ground)

13 SPOB I Microprocessor extended interface (input B). (Connected to ground)

14 XLON O Microprocessor extended interface (output). (Not used)

15 WFCK O WFCK output. (Not used)

16 XUGF O WUGF output. MNT1 or RFCK is output when switched by command. (Not used)

17 XPCK O XPCK output. MNT0 is output when switched by command. (Not used)

18 CFS O GFS output. MNT3 or XROF is output when switched by command.

19 C2PO O C2PO output. GTOP is output when switched by command.

20 SCOR O Outputs "H" when Sub-code sync S0 or S1 is detected.

21 COUT I/O Track number count signal input/output. (Not used)

22 MIRR I/O Mirror signal input/output. (Not used)

23 DFCT I/O Defect signal input/output. (Not used)

24 FOK I/O Focus OK signal input/output.

25 LOCK I/O

Outputs "H" when GFS sampled by 460 Hz is "H"; "L" when GFS is "L" continuously for 8

samplings. Or, a signal is input when LKIN is "1".

26 MDP O Spindle motor servo control output.

27 SSTP I Disc innermost edge detection signal input. (Connected to ground)

28 SFDR O Sled drive output.

29 SRDR O Sled drive output.

30 TFDR O Tracking drive output.

31 TRDR O Tracking drive output.

32 FFDR O Focus drive output.

33 FRDR O Focus drive output.

34 VSS – Ground of digital circuits.

35 TEST I TEST pin. (Connected to ground)

36 TES1 I TEST pin. (Connected to ground)

37 XTSL I

Crystal select input. "L" when 16.9344MHz crystal is used;

"H" when 33.8688MHz crystal is used. (Connected to ground)

38 VC I Neutral voltage input.

39 FE I Focus error signal input.

Pin No. Pin Name I/O Description

IC, CXD2587Q

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 33 34

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Aiwa CDC-X447M Manual de servicio Pagina 23

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