Sony-STRDE445-rec-sm维修电路原理图.pdf

1 STR-DE445/DE545/SE501 US Model STR-DE445/DE545/SE501 Canadian Model AEP Model UK Model STR-DE445/DE545 E Model Australian Model Chinese Model PX Model STR-DE545 FM STEREO FM-AM RECEIVER SERVICE MANUAL SPECIFICATIONS Dolby Laboratories Licensing Corporation. “DOLBY” the double-D symbol ; “AC-3” and “PRO LOGIC” are trademarks of Dolby Laboratories Licensing Corporation. Photo: STR-DE445 AUDIO POWER SPECIFICATIONS POWER OUTPUT AND TOTAL HARMONIC DISTORTION With 8 loads, both channels driven, from 20 20,000 Hz; rated 100a) W per channel minimum RMS power, with no more than 0.09% total harmonic distortion from 250 mW to rated output (US model only). STR-DE445: a) 80 W Amplifier section Rated Power Output at Stereo mode US model: (8 20 Hz 20 kHz, THD 0.09 % ) EXCEPT US: (8 1 kHz, THD 0.7 %) STR-DE545/SE501: 100 W + 100 W STR-DE445: 80 W + 80 W Reference Power Output (8 at 1 kHz, THD 0.7 %) STR-DE545/SE501: Front: 100 W + 100 W Center: 100 W Rear: 100 W + 100 W STR-DE445: Front: 80 W + 80 W Center: 80 W Rear: 80 W + 80 W Frequency response CD, MD/TAPE, DVD/LD, TV/ SAT, VIDEO, AUX: 10 Hz 50 kHz +0.5/2 dB (with sound field, tone, and bass boost bypassed) Inputs (Analog)5.1 CH INPUT, CD, DVD/LD, MD/TAPE, TV/SAT, VIDEO, AUX: Sensitivity: 250 mV Impedance: 50 k S/Nb): 96 dB (A, 250 mVc) b) Input short. c) Weighted nework, input level. Inputs (Digital)DVD/LD (coaxial): Sensitivity: Impedance: 75 S/N: 100 dB (A, 20 kHz LPF) DVD/LD, TV/SAT* (Optical): Sensitivity: Impedance: S/N: 100 dB (A, 20 kHz LPF) *) STR-DE545 and STR-SE501 only. OutputsMD/TAPE, (REC OUT); VIDEO (AUDIO OUT): Voltage: 250 mV, Impedance: 10 k SUB WOOFER: Voltage: 2 V Impedance: 1 k PHONES: Accepts low- and high- impedance headphones BASS BOOST+6 dB at 70 Hz TONE6 dB at 100 Hz and 10 kHz Sampling Frequency 48 kHz FM tuner section Tuning range87.5 108.0 MHz Antenna terminals 75 , unbalanced SensitivityMono: 18.3 dBf, 2.2 V/75 Stereo: 38.3 dBf, 22.5 V/75 Usable sensitivity11.2 dBf, 1 V/75 S/NMono: 76 dB Stereo: 70 dB Harmonic distortion at 1 kHz Mono: 0.3 % Stereo: 0.5 % Separation45 dB at 1 kHz Frequency response 30 Hz 15 kHz +0.5/2 dB Selectivity60 dB at 400 kHz Continued on next page RadioFans.CN 收音机爱 好者资料库 STR-DE445/DE545/SE501 1111 3-4. SCHEMATIC DIAGRAM DIGITAL SECTION See page 7 for Waveforms. See page 21 for IC Pin Functions. PIN FUNCTION PIN FUNCTION PIN FUNCTION RadioFans.CN 收音机爱 好者资料库 STR-DE445/DE545/SE501 1313 3-6. SCHEMATIC DIAGRAM MAIN (1/3) SECTION See page 7 for Waveforms. See page 28 for IC Block Diagrams. STR-DE445/DE545/SE501 1414 3-7. SCHEMATIC DIAGRAM MAIN (2/3) SECTION STR-DE445/DE545/SE501 1515 3-8. SCHEMATIC DIAGRAM MAIN (3/3) SECTION STR-DE445/DE545/SE501 1717 3-10. SCHEMATIC DIAGRAM DISPLAY SECTION See page 7 for Waveforms. See page 26 for IC Pin Functions. PIN FUNCTION STR-DE445/DE545/SE501 1919 3-12. SCHEMATIC DIAGRAM VIDEO/KEY SECTION See page 29 for IC Block Diagrams.