Aiwa XR-M300 Service Manual page 27

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Pin No. Pin Name
16 IN/SW
17 XLON
18 FOK
19 VDD1
20 VSS1
21 MDP
22 PWMI
23 TEST
24 TES1
25 VPCO
26 VCKI
27 V16M
28 VCTL
29 PCO
30 FILO
31 FILI
32 AVSS
33 CLTV
34 AVDD
35 RF
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36 BIAS
37 ASYI
38 ASYO
39 LRCK
40 LRCKI
41 PCMD
42 PCMDI
43 BCK
44 BCKI
45 VSS2
46 VDD2
47 XUGF
48 XPCK
49 GFS
50 C2PO
51 XTSL
52 C4M
53 DOUT
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54 EMPH
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55 EMPHI
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I/O
I Microcomputer extended interface (input B). (CD pickup inside limit switch.)
O Microcomputer extended interface (output).
I Focus OK input. Used for SENS output and the servo auto sequencer.
– Power supply (+5V).
– GND.
O Spindle motor servo control.
I Spindle motor external control input. (Not used)
I TEST pin. (Connected to GND)
I TEST pin. (Connected to GND)
O Charge pump output for the wide-band EFM PLL. (Connected to GND)
I VCO2 oscillation input for the wide-band EFM PLL.
O VCO2 oscillation output for the wide-band EFM PLL.
I VCO2 control voltage input for the wide-band EFM PLL. (Connected to GND)
O Master PLL charge pump output.
O Master PLL (slave = digital PLL) filter output.
I Master PLL filter input.
– Analog GND.
I Master VCO control voltage input.
– Analog power supply (+5V).
I EFM signal input.
I Constant current input of the asymmetry circuit.
I Asymmetry comparator voltage input.
O EFM full swing output. "L" = VSS, "H" = VDD.
O D/A interface. LR clock output f = Fs.
I LR clock input.
O D/A interface. Serial data output (two's complement, MSB first).
I D/A interface. Serial data input (two's complement, MSB first).
O D/A interface. Bit clock output.
I D/A interface. Bit clock input.
– GND.
– Power supply (+5V).
O XUGF output. Switched to MNT1 or RFCK output by a command. (Not used)
O XPCLK output. Switched to MNT0 output by a command. (Not used)
O GFS output. Switched to MNT3 or XRAOF output by a command. (Not used)
O C2PO output. Switched to GTOP output by a command. (Not used)
I Crystal selector input. "L" = 16.9344MHz, "H" = 33.8688MHz. (Connected to VDD)
O 4.2336MHz output. 1/4 frequency divided VCKI output in CAV-W mode. (Not used)
O Digital out output.
Outputs a high signal when the playback disc has emphasis, and a low signal when there is no
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emphasis.
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I Inputs a high signal when de-emphasis is on, and a low signal when de-emphasis is off.
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