Sony STRSE381 free download

File name Sony-STRSE381 rec.pdf

STR-SE381 SERVICE MANUAL US Model 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 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 (8 ohms at 1 kHz, THD 0.5%) Front: 60 W/ch Center: (Pro Logic Mode) 60 W Rear: 60 W/ch PHONO: RIAA equalization curve ±0.5 dB TV/DBS, CD, TAPE/MD, VIDEO INPUT 10 Hz - 50 kHz ±1 dB S/N (weighting network, Sensitivity PHONO (MM) CD TAPE/MD, TV/DBS, VIDEO 400 mV 250 mV 50 Kilohms 82 dB* (A, 150 mV) *78 IHF Impedance input level) 72 dB* (A, 2.5 mV) 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 Full mute +10 dB at 70 Hz ±8 dB at 100 Hz and 10 kHz Muting BASS BOOST TONE FM tuner section Tuning range Antenna terminals Sensitivity Usable sensitivity S/N Harmonic distortion at 1 kHz Mono: 0.3% Stereo: 0.59% 45 dB at 1 kHz 30 Hz - 15 kHz +0.5 dB ­2 60 dB at 400 kHz 87.5 - 108.0 MHz 75 ohms, unbalanced 300 ohms, balanced Mono: 18.3 dBf, 4.5 µV Stereo: 38.3 dBf, 45 µV 11.2 dBf, 2 µV (IHF) Mono: 76 dB Stereo: 70 dB Surround mode Frequency response Inputs Separation Frequency response Selectivity 2.5 mV 50 Kilohms AM tuner section Tuning range Antenna Usable sensitivity S/N Harmonic distortion Selectivity 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 -- Continued on next page -- FM STEREO/FM-AM RECEIVER MICROFILM STR-SE381 3-3. SCHEMATIC DIAGRAM -- DISPLAY SECTION -- · See page 6 for Waveforms. · See page 25 for IC Pin Functions. · See page 27 for IC Block Diagrams. --9-- -- 10 -- STR-SE381 3-5. SCHEMATIC DIAGRAM -- VOLUME SECTION -- · See page 7 for KEY Board Wiring Board. -- 13 -- -- 14 -- STR-SE381 3-7. SCHEMATIC DIAGRAM -- MAIN (1/3) SECTION -- · See page 27 for IC Block Diagrams. -- 17 -- -- 18 -- STR-SE381 3-9. SCHEMATIC DIAGRAM -- MAIN (2/3), POWER SECTION -- · See page 27 for IC Block Diagrams. -- 21 -- -- 22 -- STR-SE381 3-10. SCHEMATIC DIAGRAM -- MAIN (3/3), SP SW SECTION -- · See page 12 for SW Board Wiring Board. · See page 27 for IC Block Diagrams. -- 23 -- -- 24 -- IC301 BPF1 BPF2 CLK 1 2 1 CONTROL NOISE GENERATOR DATA ENABLE 42 41 40 NOISE FILTER NOISE CH LPF IC300 D.GND 2 CLK A B 3 DEC DATA 4 ENABLE 5 IN-FILTER (40kHz) NR-DET 6 VDD 24 OSC LA2786 VREF DIVIDER OSC 39 OSC1 3 V REF BALANCE CONTROL 3-12. IC BLOCK DIAGRAMS LV1016 S-CH DC OUT C-CH DC OUT L-CH DC OUT 38 VCC VR CONTROL OSC 23 22 R-CH DC OUT VREF 4 5 6 7 8 NR-IREF