Sony D-NE718CK - Portable Cd Player, Service Manual

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23
D-NE710/NE711/NE715/NE718CK
Pin No. Pin Name I/O Description
Ground terminal (analog system)
53, 54 AVSS1, AVSS2 —
R-ch reference voltage output terminal 55 VREFR O
AVDD2 — Power supply terminal (analog system)
57
Ground terminal (digital system)
60 VSS1 —
O
Muting on/off control signal output to the audio line and the headphone amplifier
“H”: muting on
61 LRMU
Focus OK signal output to the system controller “L”: NG, “H”: OK
65 FOK O
Numbers of track counted signal input/output terminal Not used 67 COUT I/O
C2PO O C2PO signal output terminal Not used
68
GFS O GFS signal output terminal Not used
69
XUGF O XUGF signal output terminal Not used 70
XPCK O XPCK signal output terminal Not used
71
VDD1 — Power supply terminal (digital system)
72
Charge pump output for master PLL 73 PCO O
Filter input for master PLL
74 FILI I
Filter output for master PLL
75 FILO O
VCO1 control voltage input terminal for multiplier 76 CLTV I
VCO2 control voltage input terminal for broad-band EFM PLL
77 VCTL I
Charge pump output terminal for broad-band EFM PLL
78 VPCO O
Ground terminal (analog system) 79 AVSS3 —
EFM full-swing output terminal
80 ASYO O
Asymmetry comparator voltage input terminal
81 ASYI I
Asymmetry circuit constant current input terminal
82 BIAS I
AVDD3 — Power supply terminal (analog system)
83
EFM signal input from the optical pick-up
84 RFAC I
AVDD0 — Power supply terminal (analog system)
85
Stabilized current input for operational amplifiers 86 IGEN I
Ground terminal (analog system)
87 AVSS0 —
RF signal input from the optical pick-up
88 RFDC I
E signal input from the optical pick-up 89 E I
F signal input from the optical pick-up
90 F I
B signal input from the optical pick-up
91 B I
A signal input from the optical pick-up 92 A I
Middle point voltage input terminal Not used
93 VC I
Ground terminal (digital system)
94 VSS3 —
Focus servo drive signal (–) output to the TB2138FG 95 FRDR O
Focus servo drive signal (+) output to the TB2138FG
96 FFDR O
Tracking servo drive signal (–) output to the TB2138FG
97 TRDR O
Tracking servo drive signal (+) output to the TB2138FG 98 TFDR O
56 AOUT2 O R-ch analog audio signal output
58 TES1 I Input terminal for the test (normally: fixed at “L”)
59 TEST I Input terminal for the test (normally: fixed at “L”)
62 DOUT O Digital audio signal output
63 ATSK I/O Input/output terminal for anti-shock Not used
64 DFCT I/O Defect signal input/output terminal Not used
66 MIRR I/O Defect signal input/output terminal Not used
52 VREFL O L-ch reference voltage output terminal
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