Nikko nr 320 rec sm

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NR-32 I:

AM FM STEREO RECEIVER

W-TYPE: UL 81 CSA type 120V AC

CONTENTS

{ SPECIFICATIONS................... .......
. BLOCK DIAGRAM.....
I DISASSEMBLY..... ...... ..... .
I ALIGNMENT..... ....... ...... ..... ..... 4~
a DIAL CORD |NSTALLAT|ON ..... .. .. ....... .......... 9

SCHEMATIC DIAGRAM ........

3
P.C.BOARD . . .. . ....... 1213
PARTS LOCATION...... ....... ......... ........ ..... ..
PARTS LIST. ...... .. ......... ...... ......... ..... ......15~17
SEMICONDUCTOR DATA,
TRANSISTORS ....... ........ ..... ...... 18
\, DIODE,LED'S ..... ....... ...... .......18

ZENER DIODES . ..
INTEGRATED CIRCUITS ....... ....... ...... ......... .. ..... 19~22

M?

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SPECIFICATIONS

FM TUNER SECTION

Usable SenSlfiVltyi - ~ better than 17.2 dBf/12 dBu (451V)
50 dB Quieting Sensitivity:

, better than 17.2 dBf/12 dB): (4 11V)
Signal to Noise Ratio,

MONO: .................. better than 60 dB

STEREO: ................. better than 50 dB
Total Harmonic Distortion at 1000 Hz,

MONO: ................. no more than 0.3 %

STEREO: ................. no more than 1 %
Alternate Channel Selectivity: ...... better than 45 dB
Spurious Response Rejection: ...... better than 65 dB ,
Image Frequency Rejection: ....... better than 40 dB
IF Rejection: ................. better than 80 dB
AM Rejection: ................ better than 35 dB
Capture Ratio: ................. better than 3 dB

AM TUNER SECTION

Usable sensitivity with Loop Antenna: . better than 40 dB
Signal to Noise Ratio: ........... better than 40 dB
Image Frequency Ratio,

1000 kHz: ................. better than 30 dB
IF Rejection: ................. better than 30 dB
AUDIO AMPLIFIER SECTION
Continuous Power Output per channel,

20 - 20000 Hz (8 ohms): ..... more than 25 Watts

1000 Hz (8 ohms): .......... more than 27 Watts

Total Harmonic Distortion, 8 ohms
at Continuous Power Output: . . no more than 0.08 %
at 1 Watt Power Output: ..... no more than 0.1 %
I. M. Distortion, 8 ohms

at Continuous Power Output: . . no more than 0.08 %

Stereo Separation,

100 Hz: .................. better than 28 dB
better than 35 dB

10000 Hz: ................. better than 25 dB
Subcarrier Suppression: .......... better than 30 dB
Muting Sensitivity: ................ 30 dB): 1 6 dB
Tuning Frequency Range: ....... 87.4 - 108.25 MHz
Antenna Impedance: ........... 3009 balanced &
75 fl unbalanced

Output Level: ................... 500 mV i 3dB
Selectivity (i 10 kHz): ........... better than 20 dB
Total Harmonic Distortion: ....... no more than 2 %
Tuning Frequency Range: ........ 520 - 1650 kHz
Output Level: ................... 150 mV i 2 dB
lHF Power Bandwidth, 8 ohms: ...... 20 -- 20000 Hz
Damping Factor at 1000 Hz, 8 ohms: ..... more than 30

Frequency Response,
PHONO to TAPE OUT (RIAA equalization):
.......... 30 ~ 15000 Hz:2dB
AUX, TAPE IN to SPEAKER TERMINAL:
.......... 20 - 20000 Hz 1 2 dB