Sony STR-SE381 Service Manual

SERVICE MANUAL

Manufactured under license from Dolby Laboratories
Licensing Corporation.
"Dolby" "Pro Logic" and the double-D symbol a are
trademarks of Dolby Laboratories Licensing
Corporation.
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
PHONO
2.5 mV
(MM)
CD 400 mV
TAPE/MD, 250 mV
TV/DBS,
VIDEO
MICROFILM
SPECIFICATIONS
S/N (weighting network,
Impedance
input level)
50 Kilohms 72 dB*
(A, 2.5 mV)
50 Kilohms 82 dB*
(A, 150 mV)
*78 IHF
STR-SE381
Outputs
Muting
BASS BOOST
TONE
FM tuner section
Tuning range
Antenna terminals
Sensitivity
Usable sensitivity
S/N
Harmonic distortion at 1 kHz
Separation
Frequency response
Selectivity
AM tuner section
Tuning range
Antenna
Usable sensitivity
S/N
Harmonic distortion
Selectivity
FM STEREO/FM-AM RECEIVER
US Model
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
Full mute
+10 dB at 70 Hz
±8 dB at 100 Hz and 10 kHz
87.5 - 108.0 MHz
75 ohms, unbalanced
300 ohms, balanced
Mono: 18.3 dBf, 4.5 V
Stereo: 38.3 dBf, 45 V
11.2 dBf, 2 V (IHF)
Mono: 76 dB
Stereo: 70 dB
Mono: 0.3%
Stereo: 0.59%
45 dB at 1 kHz
+0.5
30 Hz - 15 kHz dB
–2
60 dB at 400 kHz
531 - 1710 kHz
Loop antenna
50 dB/m (at 1,000 kHz)
54 dB (at 50 mV/m)
0.5% (50 mV/m, 400 kHz)
At 10 kHz: 40 dB
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