Sony str de 875 service manual
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2 STR-DE875/DE975 Harmonic distortion 0.5 % (50 mV/m, 400 Hz) Selectivity At 9 kHz: 35 dB At 10 kHz: 40 dB c) You can change the AM tuning interval to 9 kHz. After tuning in any AM station, turn off the receiver. Hold down the PRESET TUNING + button and press the ?/1 button. All preset stations will be erased when you change the tuning interval. To reset the scale to 10 kHz, repeat the procedure. Video section InputsVideo: 1 Vp-p 75 ohms S-video: Y: 1 Vp-p 75 ohms C: 0.286 Vp-p 75 ohms OutputsVideo: 1 Vp-p 75 ohms S-video: Y: 1 Vp-p 75 ohms C: 0.286 Vp-p 75 ohms General SystemTuner section: PLL quartz-locked digital synthesizer system Preamplifier section: Low-noise NF type equalizer Power amplifier section: Pure-complementary SEPP Power requirements 120 V AC, 60 Hz Power consumption US MODEL : STR-DE975: 270 W In standby condition: 0.9 W STR-DE875: 260 W In standby condition: 0.9 W Canadian MODEL : Others :STR-DE975: 350 VA In standby condition: 0.9 W STR-DE875: 340 VA In standby condition: 0.9 W AC outlets 2 switched, total 120 W/1A Max Dimensions430 × 157.5 × 369 mm (17 × 6 1/8 × 14 4/8 in.) including projecting parts and controls Mass (Approx.) 9.5 kg (20 lbs. 16 oz.) Supplied accessories Design and specifications are subject to change without notice. FM tuner section Tuning range 87.5 - 108.0 MH Antenna terminals 75 ohms, unbalanced Intermediate frequency 10.7 MHz SensitivityMono: 18.3 dBf, 2.2 µV/75 ohms Stereo: 38.3 dBf 22.5 µV/75 ohms Usable sensitivity 11.2 dBf, 1 µV/75 ohms S/NMono: 76 dB Stereo: 70 dBHarmonic 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 AM tuner section Tuning range With 10-kHz tuning scale: 530 - 1710 kHz c) With 9-kHz tuning scale: 531 - 1710 kHz c) AntennaLoop antenna Intermediate frequency 450 kHz Usable sensitivity 50 dB/m (at 1,000 kHz or 999 kHz) 50 dB/m (at 999 kHz) S/N54 dB (at 50 mV/m) -FM wire antenna (1) -AM loop antenna (1) -R6 (size-AA) batteries (2) -US, Canadian model only -Audio/video/control S connecting cord (1) -Control S connecting cord (1) - STR-DE975 only - Remote commander RM-PP505L (remote) (1) -STR-DE875 : US, Canadian, E, Malaysia, - Remote commander RM-PP505 (remote) (1) EQBASS: 99 Hz~1.0 kHz (21 steps) MID: 198 Hz~10 kHz (37 steps) TREBLE: 1.0 kHz~10 kHz (23 steps) Gain levels: ±10 dB, 1dB step Sampling Frequency 48 kHz (TV/SAT, MD/DAT*, MD/TAPE** OPTICAL IN) 96 kHz (DVD/LD OPTICAL IN, COAXIAL IN) * STR-DE975 only ** STR-DE875 only OutputsMD/DAT*, MD/TAPE** (OUT); VIDEO 1, VIDEO 2: (AUDIO OUT): Voltage: 250 mV, Impedance: 10 kilohms SUB WOOFER: Voltage: 2 V Impedance: 1 kilohms PHONES: Accepts low- and high-impedance headphones Inputs (Digital) DVD/LD (coaxial): Sensitivity: – Impedance: 75 ohms S/N: 100 dB (A, 20 kHz LPF) DVD/LD, TV/SAT, MD/DAT*, MD/TAPE** (Optical): Sensitivity: – Impedance: – S/N: 100 dB (A, 20 kHz LPF) Singapore, Chinese, Australian model only -STR-DE875 : AEP, UK model only - Commander, standard RM-U305A (remote) d) You can change the AM tuning interval to 10 kHz. After tuning in any AM station, turn off the receiver. Hold down the TUNING + button and press the 1/u button. All preset stations will be erased when you change the tuning interval. To reset the scale to 9 kHz, repeat the procedure. AEP, UK MODELS : 531 - 1602 kHz E MODEL : 530 - 1610 kHz (10 kHz step) d) 531 - 1602 kHz (9 kHz step) d) Others : 531 - 1602 kHz (9 kHz step) US, Canadian MODELS : AEP, UK MODELS : Others : AEP, UK MODELS : 35 dB Others :US, Canadian MODELS : AEP, UK MODELS : E MODEL :230 V AC, 50/60 Hz 120/220/240 V AC, 50/60 Hz Australian MODEL : 240 V AC, 50 Hz Others : 220-230 V AC, 50/60 Hz 220 W In standby condition: 0.9 W US, Canadian MODELS : AEP, UK MODELS : 1 switched, max 100 W E, Chinese MODELS : Others :2 switched, total 100 W max 1 switched, total 100 W max
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3 STR-DE875/DE975 SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. After correcting the original service problem, perform the following safety checks before releasing the set to the customer: Check the antenna terminals, metal trim, metallized knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below. LEAKAGE The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes). Leakage current can be measured by any one of three methods. 1. A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers instructions to use these instruments. 2. A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job. 3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The limit indication is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are suitable. (See Fig. A) SAFETY CHECK-OUT To Exposed Metal Parts on Set 0.15 µF 1.5 kΩAC Voltmeter (0.75 V) Earth Ground Fig. A. Using an AC voltmeter to check AC leakage. Parts No. MODEL IDENTIFICATION - BACK PANEL - ATTENTION AU COMPOSANT AYANT RAPPORT À LA SÉCURITÉ! LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPÉMENTS PUBLIÉS PAR SONY. PARTS No. 4-232-578-0s 4-232-578-1s 4-233-045-0s 4-233-045-1s 4-233-045-2s 4-233-045-3s 4-233-045-4s 4-233-045-5s 4-233-045-6s 4-233-045-7s MODEL DE975:US model DE975:Canadian model DE875:US model DE875:Canadian model DE875:Australian model DE875:Malaysia,Singapore model DE875:Chinese model DE875:E model DE875:AEP model DE875:UK model