Kenwood NV-301, Руководство по обслуживанию

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RXD-NV301/NV301E/NV701/NV701E
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CIRCUIT DESCRIPTION
Pin No. Pin Name I/O Description
31 VDD - +5V power supply.
32 CEN MUTE O Muting control of center channel.
33 SURR MUTE O Muting control of surround channel.
34 C/SW RLY O Center/sub woofer relay control.
35 SURR RLY O Surround relay control.
36 SW MUTE O Muting control of sub woofer channel.
37 FRONT ON/OFF O Control port of front channel on/off.
38,39 OPORT6,7 - Unused.
40 VSS - Ground.
41 VDD - +3.3V power supply (for core logic).
42~44 RAMA9~7 - Unused.
45~47 SDOB2~0 O PCM output from Sub DSP.
48 SDBCK1 I+ Bit clock input for SDOA, SDIB, SDOB.
49 SDWCK1 I+ Word clock input for SDOA, SDIB, SDOB.
50 VSS - Ground.
51 VDD - +3.3V power supply (for core logic).
52 NONPCM - Unused.
53 CRC - Unused.
54 MUTE - Unused.
55 KARAOKE - Unused.
56 SURENC - Unused.
57 SDBCK0 - Unused.
58,59 RAMA6,5 - Unused.
60 VSS - Ground.
61 RAMA4 - Unused.
62 IC I Initial clear.
63 TEST - Unused.
64 RAMA3 - Unused.
65 CSB I Sub DSP chip select.
66 CS I Microprocessor interface chip select input.
67 SO O Microprocessor interface serial data output.
68 SI I Microprocessor interface/Sub DSP serial data input.
69 SCK I Microprocessor interface/Sub DSP clock input.
70 RAMA2 - Unused.
71 VDD - +5V power supply.
72~79 RAMD0~RAMD7 - Unused.
80 VSS - Ground.
81 VDD - +3.3V power supply (for core logic).
82 SDWCK0 I Word clock input for SDIA,SDOA,SDIB, SDOB.
83 SDBCK0 I Bit clock input for SDIA,SDOA, SDIB, SDOB.
84,85 SDIA0,SDIA1 I AC-3 bitstream (or PCM) data input for main DSP.
86,87 RAMA1,0 - Unused.
88 RAMWEN - Unused.
89 RAMOEN - Unused.
90 VSS - Ground.
91 VDD - +3.3V power supply (for core logic).
92 IPORT7 I+ Analog signal input connection for the right.
93,94 IPORT6,5 I+ Analog signal input connections for the left channels.
95 IPORT4 I+ OPT 1 input terminal.
96 IPORT3 I+ Coaxial input terminal.
97 IPORT2 I+ To be connected to pin 85.
98,99 IPORT1,0 I+ Input terminal with a pull-up resistor.
100 VSS - Ground.
NOTE :I+ Input terminal with a pull-up resistor
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