Sony D-NF400 - ATRAC Walkman Portable CD Player, Руководство по обслуживанию

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D-NF400/NF401
Pin No. Pin Name I/O Description
53, 54 AVSS1, AVSS2 — Ground terminal
55 VREFR O R-ch reference voltage output terminal
56 AOUT2 O R-ch analog audio signal output terminal
57 AVDD2 — Power supply terminal (+2.8V)
58 TES1 I Input terminal for the test (fixed at “L”)
59 TEST I Input terminal for the test (fixed at “L”)
60 VSS1 — Ground terminal
61 LRMU O Muting on/off control signal output to the electrical volume
62 DOUT O Not used
63 ATSK I/O Not used
64 DFCT I/O Not used
65 FOK O Focus OK signal output to the system controller
66 MIRR I/O Not used
67 COUT I/O Not used
68 C2PO O Not used
69 GFS O GFS signal output to the system controller
70 XUGF O Not used
71 XPCK O Not used
72 VDD1 — Power supply terminal (+2.1V)
73 PCO O Charge pump output terminal for master PLL
74 FILI I Filter input terminal for master PLL
75 FILO O Filter output terminal 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
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 (+2.1V)
84 RFAC I EFM signal input from the optical pick-up
85 AVDD0 — Power supply terminal (+2.1V)
86 IGEN I Stabilized current input terminal
87 AVSS0 — Ground terminal
88 RFDC I RF signal input from the optical pick-up block
89 E I E signal input from the optical pick-up block
90 F I F signal input from the optical pick-up block
91 B I B signal input from the optical pick-up block
92 A I A signal iuput from the optical pick-up block
93 VC I Middle point voltage input terminal Not used
94 VSS2 — Ground terminal
95 FRDR O Focus servo drive signal (–) output to the coil/motor drive
96 FFDR O Focus setvo drive signal (+) output to the coil/motor drive
97 TRDR O Tracking servo drive signal (–) output to the coil/motor drive
98 TFDR O Tracking servo drive signal (+) output to the coil/motor drive
99 SRDR O Sled servo drive signal (–) output to the coil/motor drive
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