Marantz Model 1515 AM/FM Stereo Receiver, 1978-1980, made in Taiwan (designed in USA)

Link: hifiengine | hifi-wiki | 1515/1515L instruction/owners manual | schematic | service manual | service manual (alt scan) Related Catalogues: We Sound Better | HiFi



Specifications:
Tuning range: FM, MW

FM: 87.5 - 108 MHz
MW: 525 - 1605 kHz
Marantz model 1515L: LW диапазон: 150 – 350 kHz
New price approx.: 898 DM
Power output: 15 watts per channel into 8Ω (stereo)
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.08%
Damping factor: 25
Input sensitivity: 2.8mV (MM), 180mV (line)
Signal to noise ratio: 72dB (MM), 80dB (line)
Output: 500mV (line)
Semiconductors: 5 x IC, 29 x transistors, 19 x diodes, 1 x FET
Dimensions: 440 x 137 x 357mm
Weight: 9kg

Specifications справедлива для модели кроме как LW диапазона: Marantz 1515(L) Receiver

Rated output per channel:

DIN 4 ohms (1 kHz): 31 W

FTC 4 ohms (20 Hz - 20 kHz): 18 W

DIN 8 ohms (1 kHz): 26 W

FTC 8 ohms (20 Hz - 20 kHz): 15 W

Total Harmonic distortion at rated output: 0.15%

Damping: 28

Frequency response:

Phono (RIAA): ±1 dB

Aux (±1dB): 18 - 30 Hz/kHz

Main in (± 1 dB): 18 - 30 Hz/kHz

Signal/Noise ratio:

Phono: 72 dB

Aux. Output: 80 dB

Input Sensitivity/Imp:

Phono: 2.8/47 mV/k ohms

Auxiliary: 180/20 mV/k ohms

Separation:

Phono (1 kHz): 35 dB

Aux. (1 kHz): 43 dB

Main in (1 kHz): 55 dB

FM Stage (87.5 - 108 MHz):

Sensitivity: 

DIN Mono (S/N 26 dB 75 ohms): 1 µV

DIN Stereo (S/N 46 dB 75 ohms): 25 µV

IHF Mono: 10.8/1.9 dBf/µV

Selectivity/Adjacent channel 98 MHz ± 300 Hz: 65 dB

Signal/Noise ratio 98 MHz:

Unweighted: 

Mono: 62 dB

Stereo: 55 dB

Weighted: 

Mono: 66 dB

Stereo: 60 dB

MW stage (525 - 1605 kHz):

Sensitivity (26 dB S/N 30% mod. 1 MHz): 30 µV

Selectivity: 20 dB

LW stage (150 - 350 kHz):

Sensitivity (26 dB S/N 30% 250 kHz): 250

Selectivity (250 ± 9 kHz): 24

Width: 440mm

Height: 137mm

Depth: 358mm

Weigh: 9.0kg

итак, как все было: Кладезь мусора...

Подсветку ставим надежную LED форм-фактора 30 mm.

Таких ламп используется на 8V всего 4 штуки:

- 2 шт. по краям на подсветку шкалы

- 2 шт. на подсветку индикаторов