Sony hcd bc 150 service manual

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2 HCD-BC150/BC250 General Power requirements North American and Mexican models:120 V AC, 60 Hz Taiwan model: 120V AC, 50/60 Hz Other models: 220 -ˆ’ 240 V AC, 50/60 Hz Power co nsumption 100 W 0.3 W (at the Power Saving M ode) Dimensions (approx.) 430 × 90 × 4 03 mm (17 × 3 5/8 × 15 7/8 inches) (w/h/d) incl. projecting parts incl. pr ojecting parts Ma ss (approx.) 5.5 kg (12 lb 3 oz) Design and specifications are subject to change withou t notice. Video section Outputs Video: 1 Vp-p 75 ohms S video: Y: 1 Vp-p 75 ohms C: 0.286 V p-p 75 ohms CO MP ONENT: Y: 1 Vp-p 75 ohms PB/CB, PR/CR: 0.7 V p-p 75 ohms North American models: 531 -ˆ’ 1,710 kHz (with the interval se t at 9 kHz) 530 -ˆ’ 1,710 kHz (with the interval se t at 10 kHz) Middle Easten models: 531 -ˆ’ 1,602 kHz (with the interval se t at 9 kHz) Other models: 531 -ˆ’ 1,602 kHz (with the interval se t at 9 kHz) 530 -ˆ’ 1,710 kHz (with the interval se t at 10 kHz) ante nna AM loop antenna In termediate frequency 450 kHz AM tu ner section Tuning range T ABLE OF CONTENTS 1. GENERAL ................................................................... 4 2. DIAGRAMS 2-1. Printed Wiring Board - RF Section - .......................... 7 2-2. Schematic Diagram - RF Section - ............................ 8 2-3. Printed Wiring Board - CD Mechanism Section - ..... 9 2-4. Schematic Diagram - CD Mechanism Section - ........ 10 2-5. Printed Wiring Board - DMB07 Section (Side A) - ... 11 2-6. Printed Wiring Board - DMB07 Section (Side B) - ... 12 2-7. Schematic Diagram - DMB07 Section (1/8) - .......... 13 2-8. Schematic Diagram - DMB07 Section (2/8) - .......... 14 2-9. Schematic Diagram - DMB07 Section (3/8) - .......... 15 2-10. Schematic Diagram - DMB07 Section (4/8) - .......... 16 2-11. Schematic Diagram - DMB07 Section (5/8) - .......... 17 2-12. Schematic Diagram - DMB07 Section (6/8) - .......... 18 2-13. Schematic Diagram - DMB07 Section (7/8) - .......... 19 2-14. Schematic Diagram - DMB07 Section (8/8) - .......... 20 2-15. Printed Wiring Board - MAIN Section (Side A) - .... 21 2-16. Printed Wiring Board - MAIN Section (Side B) - ..... 22 2-17. Schematic Diagram - MAIN Section (1/2) - .............. 23 2-18. Schematic Diagram - MAIN Section (2/2) - .............. 24 2-19. Printed Wiring Board - PANEL/FL/POWER SW/ H/P/AMP RETAINER Section - ................................... 25 2-20. Schematic Diagram - PANEL/FL/POWER SW/ H/P/AMP RETAINER Section - ................................... 26 2-21. Printed Wiring Board - IO Section - .......................... 27 2-22. Schematic Diagram - IO Section - ............................. 28 2-23. Printed Wiring Board - AMP Section (Side A) - ........ 29 2-24. Printed Wiring Board - AMP Section (Side B) - ....... 30 2-25. Schematic Diagram - AMP Section (1/4) - ............... 31 2-26. Schematic Diagram - AMP Section (2/4) - ............... 32 2-27. Schematic Diagram - AMP Section (3/4) - ............... 33 2-28. Schematic Diagram - AMP Section (4/4) - ............... 34 2-29. Printed Wiring Board - SPK/LF Section - ................. 35 2-30. Schematic Diagram - SPK/LF Section - .................... 35 3. EXPLODED VIEWS 3-1. Overall Section ................................................................ 59 3-2. Front Panel Section ......................................................... 60 3-3. Chassis Section-1 ............................................................ 61 3-4. Chassis Section-2 ............................................................ 62 3-5. CD Mechanism Section-1 (CDM81A-DVBU27) ...................................................... 63 3-6. CD Mechanism Section-2 (CDM81A-DVBU27) ...................................................... 64 3-7. CD Mechanism Section-3 (CDM81A-DVBU27) ...................................................... 65 3-8. Base Unit Section (DVBU27) ......................................... 66 4. ELECTRICAL PARTS LIST .................................. 67 V er 1.3 YPB/CBPR/CR S VIDEO VIDEO ( DV D O N LY ) AUDIO IN FRONT R SURR R SURR L WOOFERCENTER FRONT LLR MONITOR OUT COMPONENT VIDEO OUT VIDEO/SAT SPEAKER COAXIALAMFM75 Par t No. MODEL IDENTIFICATION -“ Rear Panel -“ Model Part No. HCD-BC150 KR 2-177-675-0 [] HCD-BC150 US 4-252-115-0[] HCD-BC150 CND 4-252-115-1[] HCD-BC150 EA 4-252-115-2[] HCD-BC150 AUS 4-252-115-3[] HCD-BC150 E41 4-252-115-4[] HCD-BC150 MX 4-252-115-5[] HCD-BC250 US 4-252-115-6[] HCD-BC250 CND 4-252-115-7[] HCD-BC250 MX 4-252-115-8[] HCD-BC150 TW 4-252-115-9[] -Abbreviation AU S: Australian model. CND : Canadian model. E41 : 230 V AC Area in E model. EA : Saudi Arabia model. KR : Korea model. MX : Mexican model. TW : Taiwan model.

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3 HCD-BC150/BC250 CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead- free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size) : LEAD FREE MARK Unleaded solder has the following characteristics. - Unleaded solder melts at a temperature about 40 °C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 °C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! - Strong viscosity Unleaded solder is more viscou-s (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc. - Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. 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 the soldering iron around 270 °C 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 CHECK-OUT After correcting the original service problem, perform the following safety check 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 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 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 2 V AC range are suitable. (See Fig. A) Fig. A. Using an AC voltmeter to check AC leakage. 1.5 k -„¦ 0.15 µF AC voltmete r (0.75 V) To Exposed Metal Parts on Set Earth Ground 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 PA RT NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. A TTENTION AU COMPOSANT AYANT RAPPORT Ã- LA SÉCURITÉ! LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS Q UE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY. Laser component in this product is capable of emitting radiation e xceeding the limit for Class 1. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior.