Denon BU4500 - Dual Drive DJ CD Player, Руководство по обслуживанию

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18
DN-D4500 / BU4500
Note) Pins marked with an asterisk can be switched to different signals by using micro controller commands.
35 TRP O Tracking drive signal output (positive polarity)
36 *TRM O Tracking drive signal output (negative polarity)
37 FOP O Focus drive signal output (positive polarity)
38 *FOM O Focus drive signal output (negative polarity)
39 IOVDD1 I Power supply 1 for digital I/O
40 TBAL O Tracking balance adjustment signal output
41 FBAL O Focus balance adjustment signal output
42 FE I Focus error signal input
43 TE I Tracking error signal input
44 ADPVCC I Voltage input for supply voltage monitor
45 RFENV I RF envelope signal input
46 LDON O Laser ON signal output
47 NRFDET I RF detect signal input
48 OFT I Off-track signal input
49 BDO I Dropout signal input
50 AVDD I Power supply 1 for analog circuits
51 IREF I Analog reference current input
52 ARF I RF signal input
53 DSLF O DSL loop filter
54 PWMSEL I PWM output mode selection input L: Direct H: 3-state
55 PLLF O PLL loop filter (phase comparison output)
56 PLLFO O PLL loop filter (speed comparison output)
57 AVSS I GND 1 for analog circuits
58 LOOUTL O L-ch audio signal output for lineout output
59 LOVSS1 I GND for lineout output
60 LOOUTR O R-ch audio signal output for lineout output
61 LOVDD1 I Power supply for lineout output
62 N.C. -
63 TMON1 O Test monitor output 1
64 N.C. -
65 N.C. -
66 TMON2 O Test monitor output 2
67 DVDD3 I Power supply 3 for digital circuits
68 DVSS2 I GND 2 for digital circuits
69 *EXT0 I/O Expansion I/O port 0
70 *EXT1 I/O Expansion I/O port 1
71 *EXT2 I/O Expansion I/O port 2
72 MCLK I µcom command clock signal input
73 MDATA I µcom command data signal input
74 MLD I µcom command load signal input
75 *STAT O Status signal output
76 *BLKCK O Subcode block clock signal output
77 *SMCK O 4.2336MHz/8.4672MHz clock signal output
78 *PMCK O 88.2kHz clock signal output
79 *TX O Digital audio interface signal output
80 *FLAG O Flag signal output
81 NRST I LSI reset signal input
82 NTEST I Test mode setup input
83 DVSS3 I GND 3 for digital circuits
84 X1 I Crystal oscillator circuit input
85 X2 O Crystal oscillator circuit output
86 IOVDD2 I Power supply 2 for digital I/O
87 DVDD2 I Power supply 2 for inside digital circuits
88 D2 I/O SDRAM data signal I/O 2
89 D1 I/O SDRAM data signal I/O 1
90 D0 I/O SDRAM data signal I/O 0
91 D3 I/O SDRAM data signal I/O 3
92 D4 I/O SDRAM data signal I/O 4
93 D5 I/O SDRAM data signal I/O 5
94 D6 I/O SDRAM data signal I/O 6
95 D7 I/O SDRAM data signal I/O 7
96 D15 I/O SDRAM data signal I/O 15
97 D14 I/O SDRAM data signal I/O 14
98 DRVDD2 I Power supply 2 for SDRAM interface I/O
99 D13 I/O SDRAM data signal I/O 13
100 D12 I/O SDRAM data signal I/O 12
Pin No. Pin Name I/O Function