Kenwood DPC-MP727, Service Manual

Page: 5 / 15

DPC-MP727/MP922
5
CIRCUIT DESCRIPTION
Port No. Port Name I/O Function
ACTIVE
H L
36 NRFDET I RF detection signal input. Detected
37 BDO I Drop out signal input. Drop Out
38 LDON - Unused.
39 ARF I RF signal input.
40 IREF I Reference current input.
41 ADPVCC I AD reference voltage input.
42 DSLF O DSL loop filter output.
43 DSLF2 O DSL unbalance current correction.
44 PLLF O PLL loop filter output.
45 VCOF O Jitter free VCO loop filter terminal.
46 AVDD2 - Analog power supply.
47 AVSS2 - Analog ground.
48 OUTL O L ch line output.
49 AVSS1 - GND
50 OUTR O R ch line output.
51 AVDD1 - Analog power supply.
52 FSEL I Noise filter ON/OFF switching input. Off On
53 TMOD1 - Connected to analog ground.
54 TMOD2 - Connected to analog ground.
55 FLAG - Unused.
56 IPFLAG O Flag signal output.
57~59 EXT(0~2) I/O Command change over : Expander input/output port (0~2).
60 TX - Unused.
61 MCLK I Microprocessor command clock signal input.
62 MDATA I Microprocessor command data signal input.
63 MLD I Microprocessor command load signal input. Load
64 BLKCK O
Sub code block clock signal output.
fBLKCK=75Hz(normal playback)
65 SQCK I/O
Command change over : Sub code Q register external
clock input.
66 SUBQ O Command change over : Sub code Q data output.
67 DMUTE I/O Command change over : Muting input. Mute
68 STAT O Status signal output.
69 NRST I Reset signal input. Reset
70 SPPOL O Spindle motor drive signal output (polar output).
71 PMCK O 88.2kHz clock signal output.
72 SMCK - Unused.
73 SUBC - Unused.
74 SBCK - Connected to digital power supply.
75 NCLDCK - Unused.
76 NTEST - Connected to digital power supply.
77 X1 I Crystal oscillation circuit input. f=16.9344MHz
78 X2 O Crystal oscillation circuit output. f=16.9344MHz
79 DVDD1 - Digital power supply.
80 DVSS1 - Digital ground.
www. xiaoyu163. com
QQ 376315150
9 9
2
8 9
4 2
9 8
TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299