Sony hcd d 790 service manual
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Inputs PHONO IN (phono jacks): sensitivity 3 mV, impedance 47 kilohms MIX MIC (phone jack): sensitivity 1 mV, impedance 10 kilohms (HCD-D390/D790/G5500) VIDEO (AUDIO) IN (phono jacks): sensitivity 250 mV, impedance 47 kilohms (HCD-XB33/XB44/XB50/XB60) VIDEO/MD (AUDIO) IN (phono jacks): sensitivity 250 mV, impedance 47 kilohms Outputs PHONES (stereo phone jack): accepts headphones of 8 ohms or more (HCD-XB33/XB44/XB50/XB60) VIDEO/MD (AUDIO) OUT (phono jacks): voltage 250 mV, impedance 1 kilohm SPEAKER: (HCD-D390/D790/G5500/XB50/XB60) accepts impedance of 8 to 16 ohms (HCD-XB33/XB44) impedance of 6 to 16 ohms SURROUND SPEAKER: (HCD-D790/XB33/XB50/XB60 only) accepts impedance of 16 ohms CD player section System Compact disc and digital audio system Laser Semiconductor laser (l = 780nm). Emission duration: continuous Laser output Max. 44.6µW* *This output is the value measured at a distance of 200 mm from the objective lens surface on the Optical Pick-up Block with 7 mm aperture. Wavelength 780 Ð 790 nm Frequency response 2 Hz Ð 20 kHz (±0.5 dB) Signal-to-noise ratio More than 90 dB Dynamic range More than 90 dB (HCD-XB33/XB44/XB50/XB60) CD DIGITAL OUT (square optical connector jack, rear panel) Wave length: 600 nm Output level: Ð 18 dBm Tape player section Recording system 4-track 2-channel stereo Frequency response (DOLBY NR OFF) 60 Ð 13,000 Hz (±3 dB), using a Sony TYPE I cassette 60 Ð 14,000 Hz (±3 dB), using a Sony TYPE II cassette Tuner section FM stereo, FM/AM superheterodyne tuner FM tuner sectionTuning range (2 band model) North American model:: 87.5 - 108.0 MHz (100 kHz step) Other models: 87.5 - 108.0 MHz (50 kHz step) (3 band model) 87.5 -108.0 MHz (50 kHz step) (4 band model) 87.5 -108.0 MHz (50 kHz step) 65.0 - 74.0 MHz (10 kHz step) OIRT UKV: 65.0 - 74.0 MHz (10 kHz step) POLAR STEREO Antenna FM wire antenna Antenna terminals 75 ohm unbalanced Intermediate frequency 10.7 MHz AM tuner sectionTuning range (2 band model) North American model: 530 Ð 1,710 KHz (with the tuning interval set at 10 kHz) 531 Ð 1,710 KHz (with the tuning interval set at 9 kHz) Other models: 531 Ð 1,602 kHz (with the tuning interval set at 9 kHz) 530 Ð 1,710 KHz (with the tuning interval set at 10 kHz) (3 band and 4 band models): MW: 531 Ð 1,602 kHz (with the tuning interval set at 9 kHz) LW: 153 Ð 279 kHz (with the tuning interval set at 3 kHz) Antenna AM loop antenna, External antenna terminals Intermediate frequency 450 kHz General Power requirements North American model: 120 V AC, 60 Hz European model: 230 V AC, 50/60 Hz Mexican model: 120 V AC, 50/60 Hz Australian and South African models: 220 Ð 240 V AC, 50/60 Hz Thailand model:: 220 Ð 240 V AC, 50/60 Hz Other models: 110 Ð 120 V or 220 Ð 240 V AC, 50/60 Hz Adjustable with voltage selector Power consumption (HCD-D390/G5500): 170 watts (HCD-D790): 198 watts (HCD-XB50): 190 watts (HCD-XB60): 230 watts (HCD-XB33): 240 watts (HCD-XB44): 250 watts Dimensions (w/h/d) Approx. 355 x 425 x 435 mm (14 x 16 3/4 x 17 1/4 in) incl. projecting parts and controls Mass (HCD-D390/G5500): Approx. 12.5 kg (27 lb 9 oz.) (HCD-D790/XB50/XB60): Approx. 13.0 kg (28 lb 11 oz.) (HCD-XB33/XB44): Approx. 14.0 kg (30 lb 14 oz.) Supplied accessories: AM loop antenna (1) Remote RM-SD70S (1) Size AA (R6) batteries (2) FM wire antenna (1) Speaker cords* (2) * except for HCD-D390/G5500/XB33/XB50 Design and specifications are subject to change without notice. Ñ 2 Ñ
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Ñ 3 Ñ After correcting the original service problem, perform the following safety checks before releasing the set to the customer: Check the antenna terminals, metal trim, ÒmetallizedÓ knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below. LEAKAGE TEST 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 manufacturersÕ 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 ÒlimitÓ 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 k ½ AC Voltmeter (0.75 V) Earth Ground Fig. A. Using an AC voltmeter to check AC leakage. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior. The following caution label is located inside the unit. Laser component in this product is capable of emitting radiation exceeding the limit for Class 1. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. Notes on chip component replacement ¥ Never reuse a disconnected chip component. ¥ Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing ¥ Keep the temperature of soldering iron around 270ûC during repairing. ¥ Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). ¥ Be careful not to apply force on the conductor when soldering or unsoldering. SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! 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.ATTENTION AU COMPOSANT AYANT RAPPORT Ë LA SƒCURITƒ! LES COMPOSANTS IDENTIFƒS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHƒMATIQUES ET LA LISTE DES PIéCES SONT CRITIQUES POUR LA SƒCURITƒ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIéSES SONY DONT LES NUMƒROS SONT DONNƒS DANS CE MANUEL OU DANS LES SUPPƒMENTS PUBLIƒS PAR SONY.