Aiwa CDC-X447M Manual de servicio descargar pdf (Pagina 26)

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1 TE-BAL – Not used.

2 LO-REV O Loading motor reverse drive output.

3 LO-FWD O Loading motor forward drive output.

4 LIMT-SW I Inner edge limit switch.

5 RE-SW O CD/CD-RW switching output.

6 SV-CONT O

Outputs "H" when power is turned on.

(When power is supplied, this pin outputs "H" after DSP is initialized.)

7 ~ 8 NC – Not connected.

9 VSS – Ground.

10 ~ 17 NC – Not connected.

18 SRQ O Mechanism microprocessor communication request.

19 SLEEP I SLEED request from system microprocessor.

20 CHUCK-SW I Chucking complete switch.

21 LOAD-SW I Disc loading switch.

22 8/12-SW I 8/12-cm check switch.

23 CD-ON O CD mechanism power control output.

24 VSS – Ground.

25 ~ 26 NC – Not connected.

27 APC O Laser on/off switching output.

28 ~ 30 NC – Not connected.

31 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".

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

33 C2PO I C2PO input.

34 GFS I GFS input.

35 RESET I System reset input.

36 NC – Not connected.

37 SCOR I Sub-code sync input.

38 SENS I SENS input.

39 CS I CS signal input.

40 VDD – Power supply.

41 X2 – For generating main system clock.

42 X1 I For generating main system clock.

43 IC – Connected to ground.

44 XT2 – Not used.

45 XT1 – Connected to VDD.

46 AVSS – Ground.

47 ~ 48 NC – Not connected.

49 SCLK O Outputs clock for reading SENS serial data.

50 CLK-DSP O Outputs clock for transferring DSP serial data.

51 LAT-DSP O DSP serial data latch output.

IC, µPD78012FGC–656–AB8

Pin No. Pin Name I/O Description

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 32 33 34

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Aiwa CDC-X447M Manual de servicio Pagina 26

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