Nakamichi NA-85 Service Manual

NA85

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Instruction Manual page

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TECHNICAL SPECIFICATION 1-1

Product Information

General

PowerSupply: 12V DC (10.5 14.4V), negative ground
Fuse: 15A
Suitable Speaker Impedance:4 8
Aux In level: 500mV

Audio Section

Maximum PowerOutput: Mosfet 50Wx 4 Channels
Continous Power Output: 22W x 4 RMS
Pre AMP Output Voltage: 1.5V
SubwooferOutput Voltage: 1.5 V

FM tuner section

Frequency Range: 87.5 108MHz

Usable Sensitivity: Better than 15dB atS/N 30dB

AM tuner section

Frequency Range: 522 1620KHz
Usable Sensitivity: Better than 45dB atS/N 26dB

USB devices

USB FlashMemor y: USB 1.1 & 2.0 Compatible

Memory Card

Support type of memory card: SD/SDHC

Bluetooth

Output power: Class 2
Frequency band: 2.4000GHz 2.4835GHz ISMBand

Range: 3 meters (freespace)

Standard: Bluetooth 2.0 specification

About Audio file

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USB or memory file system: FAT16, FAT32

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MP3/WMA bit rate: 32 320kbps and varible bit rate

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MP3 sampling frequencies: 8 48kHz

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WMA sampling frequencies: 32kHz, 44.1kHz, 48kHz

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ID3 tag v1.0 or later

MAIN BOARD-CIRCUIT DIAGAM

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MAIN BOARD-CIRCUIT DIAGAM

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MAIN BOARD-CIRCUIT DIAGAM

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MAIN BOARD LAYOUT DIAGAM 2 4

MAIN BOARD LAYOUT DIAGAM 2 5