Aiwa WD-X500M Service Manual page 43

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IC DESCRIPTION - 1/3 (CXD2587Q) -1/2
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Pin No. Pin Name
1 SQSO
2 SQCK
3 XRST
4 SYSM
5 DATA
6 XLAT
7 CLOK
8 SENS
9 SCLK
10 VDD
11 ATSK
12 SPOA
13 SPOB
14 XLON
15 WFCK
16 XUGF
17 XPCK
18 GFS
19 C2PO
TE 20 SCOR
L 13942296513
21 COUT
22 MIRR
23 DFCT
24 FOK
25 LOCK
26 MDP
27 SSTP
28 SFDR
29 SRDR
30 TFDR
31 TRDR
32 FFDR
33 FRDR
34 VSS
35 TEST
36 TES1
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37 XTSL
38 VC
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39 FE
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I/O
O Sub-Q 80-bit and PCM peak/level data output. CD TEXT data output.
I Clock input for reading SQSO.
I System reset. Reset at "L".
I Muting input. Muted at "H".
I Serial data input from CPU
I Latch input from CPU. Latches serial data at the trailing edge.
I Clock input for serial data transfer from CPU
O SENS output to CPU
I Clock input for reading SENS serial data
— Power supply of digital circuits
I/O Input/output for anti-shock
I Microprocessor extended interface (input A)
I Microprocessor extended interface (input B)
O Microprocessor extended interface (output)
O WFCK output
O WUGF output. MNT1 or RFCK is output when switched by command.
O XPCK output. MNT0 is output when switched by command.
O GFS output. MNT3 or XROF is output when switched by command.
O C2PO output. GTOP is output when switched by command.
O Outputs "H" when Sub-code sync S0 or S1 is detected.
I/O Track number count signal input/output
I/O Mirror signal input/output
I/O Defect signal input/output
I/O Focus OK signal input/output
Outputs "H" when GFS sampled by 460 Hz is "H"; "L" when GFS is "L" continuously for 8
I/O
samplings. Or, a signal is input when LKIN is "1".
O Spindle motor servo control output
I Disc innermost edge detection signal input
O Sled drive output
O Sled drive output
O Tracking drive output
O Tracking drive output
O Focus drive output
O Focus drive output
— Ground of digital circuits
I TEST pin. Normally, grounded.
I TEST pin. Normally, grounded.
Crystal select input. "L" when 16.9344MHz crystal is used; "H" when 33.8688MHz crystal is
I
used.
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I Neutral voltage input
i
I Focus error signal input
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