Sony pmc d 305 l service manual
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Ð 2 Ð TABLE OF CONTENTS 1. SERVICING NOTES ............................................... 3 2. GENERAL ................................................................... 5 3. DISASSEMBLY .......................................................... 21 4. MECHANICAL ADJUSTMENTS ....................... 26 5. ELECTRICAL ADJUSTMENTS Tape Deck Section ........................................................... 26 Tuner Section ................................................................... 28 CD Section ....................................................................... 30 6. DIAGRAMS 6-1. Printed Wiring Board Ð Tuner Section Ð (PMC-D305) ...................................... 35 6-2. Schematic Diagram Ð Tuner Section Ð (PMC-D305) ...................................... 37 6-3. Schematic Diagram Ð Tuner Section Ð (PMC-D305L) .................................... 40 6-4. Printed Wiring Board Ð Tuner Section Ð (PMC-D305L) .................................... 43 6-5. Printed Wiring Boards Ð CD Section Ð ............................ 47 6-6. Schematic Diagram Ð CD Section Ð ................................ 49 6-7. Printed Wiring Boards Ð Main Section Ð ......................... 52 6-8. Schematic Diagram Ð Main Section Ð ............................. 55 6-9. Schematic Diagram Ð Control Section Ð ......................... 58 6-10. Printed Wiring Boards Ð Control Section Ð ..................... 61 6-11. Printed Wiring Boards Ð Power Section Ð ....................... 65 6-12. Schematic Diagram Ð Power Section Ð ........................... 67 6-13. IC Pin Function Description ............................................ 74 7. EXPLODED VIEWS ................................................ 76 8. ELECTRICAL PARTS LIST ................................ 84 Cassette-corder sectionRecording system 4-track 2 channel stereo Fast winding time Approx. 130 s (sec.) with Sony cassette C-60 Frequency response TYPE I (normal):40-15,000 Hz General Speaker Full range: 8 cm (3 1/4 in.) dia., 6.0 ohms, cone type ´2 Input LINE IN jack (stereo minijack) Minimum input level 250 mV Outputs Headphones jack (stereo minijack) For 16-68 ohms impedance headphones LINE OUT jack (stereo minijack) Rated output level 440 mV at load impedance 47 kilohms Optical digital output (optical output connector) Wave length: 630 Ð 690 nm Power output (excluding US model) 10 W + 10 W (at 6.0 ohms, 10% harmonic distortion) Power requirements For personal component system: For remote commander: 3 V DC, 2 size AA (R6) batteries Power consumption AC 35 W Dimensions (incl. projecting Parts) Player: approx. 130 ´ 211 ´ 200 mm (w/h/d) (5 1/8 ´ 8 3/8 ´ 7 7/8 inches) Left speaker: approx. 125 ´ 210 ´ 234 mm (w/h/d) (5 ´ 8 3/8 ´ 9 1/4 inches) Right speaker: approx. 125 ´ 210 ´ 200 mm (w/h/d) (5 ´ 8 3/8 ´ 7 7/8 inches) Mass Player: approx. 1.7 kg (3 lb. 12 oz) Left speaker: approx. 2.8 kg (6 lb. 3 oz) Right speaker: approx. 1.1 kg (2 lb. 7 oz) Supplied accessories Remote commander (1) FM lead aerial (1) (D305L) AM (MW)/LW loop aerial (1) Audio connecting cord (1) Design and specifications are subject to change without notice. ¥ Abbreviation CET : East European, Russian US, Canadian, E models 120 V AC, 60 Hz AEP, UK, Italian, CET, Australian models 230 V AC, 50 Hz
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Ð 3 Ð SAFETY CHECK-OUT After correcting the original service problem, perform the follow- ing safety check 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 microampers). 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 2 V AC range are suitable. (See Fig. A) Fig. A. Using an AC voltmeter to check AC leakage. 1.5 k W 0.15 µF AC voltmete r (0.75 V) To Exposed Metal Parts on Set Earth Ground CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous ra- diation exposure. 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 IDENTIFIƒS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHƒMATIQUES ET LA LISTE DES PIéCES SONT CRITIQUES POUR LA SƒCURITƒ DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PIéCES SONY DONT LES NUMƒROS SONT DONNƒS DANS CE MANUEL OU DANS LES SUPPLƒMENTS PUBLIƒS PAR SONY. NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT CHUCK PLATE JIG ON REPAIRING On repairing CD section, playing a disc without the CD lid, use Chuck Plate Jig. ¥ Code number of Chuck Plate Jig: X-4918-255-1 The laser diode in the optical pick-up block may suffer electro- static breakdown because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic breakdown and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pick-up block. Therefore, when checking the laser diode emis- sion, observe from more than 30 cm away from the objective lens. This Compact Disc player is classiffied as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT table is location on the rear exterior. SECTION 1 SERVICING NOTES