Sony STR-SE381, Руководство по обслуживанию

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STR-SE381
US Model
SERVICE MANUAL
FM STEREO/FM-AM RECEIVER
MICROFILM
Manufactured under license from Dolby Laboratories
Licensing Corporation.
“Dolby” “Pro Logic” and the double-D symbol
a are
trademarks of Dolby Laboratories Licensing
Corporation.
SPECIFICATIONS
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Audio power specifications
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
With 8-ohm load, both channels driven, from 40 - 20,000 Hz,
rated 60 watts per channel minimum RMS power, with no more
than 0.5% total harmonic distortion from 250 milliwatts to
rated output.
Amplifier section
Stereo mode (8 ohms at 40 Hz - 20 kHz less than 0.5% total
harmonic distortion)
60 W + 60 W
Surround mode (8 ohms at 1 kHz, THD 0.5%)
Front: 60 W/ch
Center: (Pro Logic Mode)
60 W
Rear: 60 W/ch
Frequency response PHONO: RIAA
equalization curve ±0.5 dB
TV/DBS, CD, TAPE/MD, VIDEO INPUT
10 Hz - 50 kHz ±1 dB
Inputs
Sensitivity Impedance
S/N (weighting network,
input level)
PHONO
(MM)
2.5 mV 50 Kilohms 72 dB*
(A, 2.5 mV)
CD 400 mV
TAPE/MD, 250 mV
TV/DBS, 50 Kilohms 82 dB*
VIDEO (A, 150 mV)
*78 IHF
Outputs
TAPE/MD REC OUT:
Voltage: 150 mV,
Impedance: 10 kilohms
VIDEO AUDIO OUT:
Voltage: 150 mV,
Impedance: 10 kilohms
PHONES:
Accepts low and high impedance headphones
Muting
Full mute
BASS BOOST +10 dB at 70 Hz
TONE ±8 dB at 100 Hz and 10 kHz
FM tuner section
Tuning range 87.5 - 108.0 MHz
Antenna terminals 75 ohms, unbalanced
300 ohms, balanced
Sensitivity Mono: 18.3 dBf, 4.5
µ
V
Stereo: 38.3 dBf, 45
µ
V
Usable sensitivity
11.2 dBf, 2
µ
V (IHF)
S/N Mono: 76 dB
Stereo: 70 dB
Harmonic distortion at 1 kHz
Mono: 0.3%
Stereo: 0.59%
Separation 45 dB at 1 kHz
+0.5
Frequency response
30 Hz - 15 kHz
–2
dB
Selectivity 60 dB at 400 kHz
AM tuner section
Tuning range
531 - 1710 kHz
Antenna Loop antenna
Usable sensitivity 50 dB/m (at 1,000 kHz)
S/N
54 dB (at 50 mV/m)
Harmonic distortion 0.5% (50 mV/m, 400 kHz)
Selectivity At 10 kHz: 40 dB