Nikko nr 1019 rec sm

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NR-1019

AM/FM STEREO RECEIVER

'v'PjE AND VOLTAGE 7

W-TYPE UL and CSA type 120V AC

E

220/240V AC 7

N-TYPE DEMKO and SEMKO type

CONTENTS
SPECIFICATIONS .................................. _ ............................... 1, 2
BLOCK DIAGRAM ................................................................... 3
CIRCUIT DESCRIPTION .......................................................... 4~8
DISASSEMBLY .................................................................. 9, 10
ALIGNMENT .................................................................. 11 ~ 15
P. C. BOARD ................................................................. 16~ 19
POWER TRANSISTORS MOUNTING ASSEMBLY ........................................ 20
DIAL CORD INSTALLATION ........................................................ 21
PARTS LOCATION ................................................................. 22
PARTS LIST .................................................................. 23 ~ 28
SEMICONDUCTOR DATA,
TRANSISTORS ................................................................ 29
FIELD EFFECT TRANSISTOR ..................................................... 29
DIODES, LED'S ............................................................... 29
ZENER DIODES ............................................................... 29
INTEGRATED CIRCUITS ..................................................... 30 ~ 33

CORRECTION OF SCHEMATIC DIAGRAM ............................................ 34

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II NR-1019

SPECIFICATIONS

FM TUNER SECTION

Usable Sensitivity: ...... better than 10 dBp. (3.16 [AW
50 dB Quieting Sensitivity:

.......... better than 15 dBu (5.6 uV)
Signal to Noise Ratio

(MONO): ................ better than 65 dB

(STEREO): ............... better than 60 dB
T. H. Distortion at) kHz

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

(STEREO): ............. no more than 0.8 %
Alternate Channel Selectivity: ...... better than 60 dB
Spurious Rejection Ratio: . . . better than 80 dB
Image Frequency Rejection Ratio: . . . . better than 80 dB
IF Rejection Ratio: .............. better than 80 :13
AM Suppression Ratio: ........... better than 50 dB

AM TUNER SECTION

Usable Sensitivity, Ferrite Loopstick Antenna:
............ better than 1000 yV/m

Signal to Noise Ratio: ............ better than 38 dB

Image Frequency Rejection Ratio: . . . . better than 30 dB

Capture Ratio: .................. better than 4 dB
Stereo Separation

(100 Hz): ................ better than 30 dB

(1 kHz): ................. better than 35 dB

(10 kHz): ......... better than 30 dB
Subcarrier Supression Ratio: ........ better than 58 dB
Muting Sensitivity: ................. 30 dB; is 8 dB
T- LOCKED System

(Lock Range): ............ 150 kHz i 100 kHz

(Lock in Range): ............ 50 kHz i 20 kHz
FM Tuning Range: .............. 87.9 ~ 108.5 MHz

Antenna Impedance
..... 300 ohms balanced & 75 ohms unbalanced

Output Level: ................... 550 mV :2 dB
IF Rejection Rati'o: .............. better than 25 dB
Selectivity (i 10 kHz): ............ better than 30 dB
AM Tuning Range: ............... 530 ~ 1630 kHz
Output Level: ................... 120 mV 1-3 dB