Sony CD Walkman D-NE500, Руководство по обслуживанию

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D-NE500/NE506CK
Pin No. Pin Name I/O Pin Description
57 AVDD2 — Power supply terminal (analog system)
58 TES1 I Input terminal for the test (normally: fixed at “L”)
59 TEST I Input terminal for the test (normally: fixed at “L”)
60 VSS1 — Ground terminal (digital system)
61 LRMU O
Muting on/off control signal output to the audio line and the headphone amplifier
“H”: muting on
62 DOUT O Digital audio signal output Not used
63 ATSK I/O Input/output terminal for anti-shock Not used
64 DFCT I/O Defect signal input/output terminal Not used
65 FOK O Focus OK signal output to the system controller “L”: NG, “H”: OK
66 MIRR I/O Defect signal input/output terminal Not used
67 COUT I/O Numbers of track counted signal input/output terminal Not used
68 C2PO O C2PO signal output terminal Not used
69 GFS O GFS signal output terminal
70 XUGF O XUGF signal output terminal Not used
71 XPCK O XPCK signal output terminal Not used
72 VDD1 — Power supply terminal (digital system)
73 PCO O Charge pump output for master PLL
74 FILI I Filter input for master PLL
75 FILO O Filter output for master PLL
76 CLTV I VCO1 control voltage input terminal for multiplier
77 VCTL I VCO2 control voltage input terminal for broad-band EFM PLL
78 VPCO O Charge pump output terminal for broad-band EFM PLL
79 AVSS3 — Ground terminal (analog system)
80 ASY_O O EFM full-swing output terminal
81 ASY_I I Asymmetry comparator voltage input terminal
82 BIAS I Asymmetry circuit constant current input terminal
83 AVDD3 — Power supply terminal (analog system)
84 RFAC I EFM signal input from the optical pick-up
85 AVDD0 — Power supply terminal (analog system)
86 IGEN I Stabilized current input for operational amplifiers
87 AVSS0 — Ground terminal (analog system)
88 RFDC I RF signal input from the optical pick-up
89 E I E signal input from the optical pick-up
90 F I F signal input from the optical pick-up
91 B I B signal input from the optical pick-up
92 A I A signal input from the optical pick-up
93 VC I Middle point voltage input terminal Not used
94 VSS2 — Ground terminal (digital system)
95 FRDR O Focus servo drive signal (–) output to the IC401
96 FFDR O Focus servo drive signal (+) output to the IC401
97 TRDR O Tracking servo drive signal (–) output to the IC401
98 TFDR O Tracking servo drive signal (+) output to the IC401
99 SRDR O Sled servo drive signal (–) output to the IC401
100 SFDR O Sled servo drive signal (+) output to the IC401
101 SSTP I Disc inner position detection signal input terminal Not used
102 MDS O Spindle motor drive signal output to the spindle motor driver
103 MDP O Spindle motor servo control signal output to the spindle motor driver
104 C176 O 176.4 kHz clock output to the power control and spindle motor driver
105 VDD2 — Power supply terminal (digital system)
106 LRCK_O O L/R sampling clock (44.1 kHz) output terminal