JVC XL-SV302SL, Service Manual

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XL-SV320SL/305GD/308BU
1-15
Pin No. Pin Name I/O Description
34 FRDR O 1,0 Focus drive output.
35 DVss1 - - Digital GND.
36 TEST I Test normally, GND
37 TES1 I Test normally, GND
38 VC I Center voltage input
39 FE I Focus error signal input
40 SE I Sled error signal input
41 TE I Tracking error signal input
42 CE I Center servo analog input
43 RFDC I RF signal input
44 ADIO O Analog Test No. connected
45 AVss0 - - Analog GND
46 IGEN I Constant current input for operational amplifier
47 AV
DD
0 - - Analog power supply
48 ASYO O 1,0 EFM full-swing output. (low=Vss, high=V
DD
)
49 ASYI I Asymmetry comparator voltage input
50 RFAC I EFM signal input
51 AVss1 - - Analog GND
52 CLTV I Multiplier VCO1 control voltage input
53 FILO O Analog Master PLL filter output (slave=digital PLL)
54 FILI I Master PLL filter input
55 PCO O 1,Z,0 Master PLL charge pump output
56 AV
DD
1 - - Analog power supply
57 BIAS I Asymmetry circuit constant current input
58 VCTL I Wide-band EFM PLL VCO2 control voltage input
59 V16M I/O 1,0 Wide-band EFM PLL VCO2 oscillation output. Serves as wide-band EFM PLL clock
input by switching with the command.
60 VPCO O 1,Z,0 Wide-band EFM PLL change pump output
61 DV
DD
2 - - Digital power supply
62 ASYE I Asymmetry circuit on/off (low=off, high=on)
63 MD2 I Digital Out on/off control (low=off, high=on)
64 DOUT O 1,0 Digital Out output
65 LRCK O 1,0 D/A interface. LR clock output. f=Fs
66 PCMD O 1,0 D/A interface. Serial data output (two’s complement, MSB first)
67 BCK O 1,0 D/A interface. Bit clock output
68 EMPH O 1,0 Outputs a high signal when the playback disc has emphasis, and a low signal when
there is no emphasis.
69 XTSL I Crystal selection input. Low when the crystal is 16.9344MHz; high when it is
33.8688MHz.
70 DVss2 - - Digital GND
71 XTAI I Crystal oscillation circuit input. When the master clock is input externally, input it from
this pin.
72 XTAO O Crystal oscillation circuit output.
73 SOUT O 1,0 Serial data output in servo block.
74 SOCK O 1,0 Serial data readout clock output in servo block.
75 XOLT O 1,0 Serial data latch output in servo block.
76 SQCO O 1,0 Sub-Q 80-bit, PCM peak or level data outputs. CD TEXT data output.
77 SQCK I SQCO readout clock input.
78 SCSY I GRSCOR resynchronization input.
79 SBSO O 1,0 Sub-Q P to W serial output.
80 EXCK I SBSO readout clock input.