Sony CDP CX455 Service Manual
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Extracted text from Sony CDP CX455 Service Manual (Ocr-read)
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2 CDP-CX455 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 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. Laser component in this product is capable of emitting radiation exceeding 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. The following caution label is located inside of the unit. PARTS No. MODEL MODEL IDENTIFICATION - BACK PANEL - 4-238-082-0 s 4-238-082-1 s 4-238-082-2 s US CND AEP, UK 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 À LA SÉCURITÉ!! LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY. SAFETY CHECK-OUT 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 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 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) Fig. A. Using an AC voltmeter to check AC leakage. PA R T N O . 0.15 µF To Exposed Metal Parts on Set 1.5k Ω AC voltmeter (0.75V) Earth Ground - Abbreviation CND : Canadian model
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3 CDP-CX455 SECTION 1 SERVICE NOTE NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repain 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 emission, observe from more than 30 cm away from the objective lens. The emission check enables continuous checking of the S curve. LASER DIODE AND FOCUS SEARCH OPERATION CHECK Carry out the S curve check in CD section adjustment and check that the S curve waveform is output three times. TABLE OF CONTENTS 1. SERVICE NOTE ······························································· 3 2. GENERAL ·········································································· 6 3. DISASSEMBLY ································································ 7 3-1. Case ··············································································· 8 3-2. MAIN Board ································································· 8 3-3. TRANS Board ······························································· 9 3-4. Front Panel Assembly ···················································· 9 3-5. JOG Board, DISP Board, KEYBOARD Board ··········· 10 3-6. Cover (PT), Table (400) Assembly ······························ 11 3-7. LED Board, Guide (Door) ··········································· 11 3-8. DOOR SW Board ························································ 12 3-9. Base (Door Driving) Assembly ··································· 13 3-10. Pop-up Assembly ························································· 13 3-11. D.MOTOR Board, Motor Assembly (Door) (M603) ·· 14 3-12. T.SENS Board, Holder (Table Sensor 400) ················· 14 3-13. D.SENS (OUT) Board, D.SENS (IN) Board ·············· 15 3-14. Back Panel Section ······················································ 15 3-15. CD Mechanism, Magnet Assembly ····························· 16 3-16. LOADING SW Board, LOCK SW Board ·················· 17 3-17. CDM Assembly ··························································· 18 3-18. Motor Assembly (Table) (M601), Motor Assembly (Loading) (M602) ···························· 18 3-19. BU Holder ··································································· 19 3-20. BD Board, Optical Pick-up (KSM-213BFN) ·············· 19 4. TEST MODE ···································································· 20 5. ADJUSTMENTS ···························································· 25 6. DIAGRAMS ······································································ 29 6-1. Circuit Boards Location ·············································· 29 6-2. Block Diagrams ··························································· 30 6-3. Printed Wiring Board – BD Board – ··························· 32 6-4. Schematic Diagram – BD Board – ······························ 33 6-5. Printed Wiring Board – MAIN Board – ······················ 34 6-6. Schematic Diagram – MAIN Board (1/2) – ················ 35 6-7. Schematic Diagram – MAIN Board (2/2) – ················ 36 6-8. Printed Wiring Board – Sensor Section – ···················· 37 6-9. Schematic Diagram – Sensor Section – ······················ 37 6-10. Printed Wiring Board – Display Section – ·················· 38 6-11. Schematic Diagram – Display Section – ····················· 39 6-12. Printed Wiring Board – JOG Board – ························· 40 6-13. Schematic Diagram – JOG Board – ···························· 41 6-14. Printed Wiring Board – Power Section – ···················· 42 6-15. Schematic Diagram – Power Section – ······················· 43 6-16. IC Block Diagrams ······················································ 44 6-17. IC Pin Function Descriptions ······································ 46 7. EXPLODED VIEWS ······················································ 50 7-1. Case Section ································································ 50 7-2. Chassis Section 1 ························································· 51 7-3. Chassis Section 2 ························································· 52 7-4. Front Panel Section ····················································· 53 7-5. Mechanism Section 1 (CDM62-K1BD46A) ··············· 54 7-6. Mechanism Section 2 (CDM62-K1BD46A) ··············· 55 7-7. Mechanism Section 3 (CDM62-K1BD46A) ··············· 56 7-8. Mechanism Section 4 (CDM62-K1BD46A) ··············· 57 7-9. Optical Pick-up Section (BU-K1BD46A) ··················· 58 8. ELECTRICAL PARTS LIST ······································· 59
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Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 62 CDP-CX455 < FLUORESCENT INDICATOR TUBE > FL702 1-518-803-11 INDICATOR TUBE, FLUORESCENT < IC > IC704 8-759-547-59 IC M35500BGP < RESISTOR > R701 1-249-429-11 CARBON 10K 5% 1/4W R702 1-249-417-11 CARBON 1K 5% 1/4W F R703 1-249-421-11 CARBON 2.2K 5% 1/4W F R704 1-249-421-11 CARBON 2.2K 5% 1/4W F R705 1-249-425-11 CARBON 4.7K 5% 1/4W F R706 1-249-429-11 CARBON 10K 5% 1/4W R707 1-249-433-11 CARBON 22K 5% 1/4W R711 1-249-429-11 CARBON 10K 5% 1/4W R712 1-249-417-11 CARBON 1K 5% 1/4W F R713 1-249-421-11 CARBON 2.2K 5% 1/4W F R714 1-249-421-11 CARBON 2.2K 5% 1/4W F R721 1-249-429-11 CARBON 10K 5% 1/4W R722 1-249-417-11 CARBON 1K 5% 1/4W F R723 1-249-421-11 CARBON 2.2K 5% 1/4W F R724 1-249-421-11 CARBON 2.2K 5% 1/4W F R725 1-249-425-11 CARBON 4.7K 5% 1/4W F R726 1-249-429-11 CARBON 10K 5% 1/4W R727 1-249-433-11 CARBON 22K 5% 1/4W R731 1-249-429-11 CARBON 10K 5% 1/4W R741 1-249-429-11 CARBON 10K 5% 1/4W R751 1-249-429-11 CARBON 10K 5% 1/4W R771 1-247-807-31 CARBON 100 5% 1/4W R772 1-249-407-11 CARBON 150 5% 1/4W F R773 1-249-407-11 CARBON 150 5% 1/4W F R774 1-247-807-31 CARBON 100 5% 1/4W R775 1-247-807-31 CARBON 100 5% 1/4W R794 1-247-807-31 CARBON 100 5% 1/4W < ROTARY ENCODER > RE701 1-475-543-11 ENCODER, ROTARY (DISC/ALBUM/CHARACTER) RE702 1-475-543-11 ENCODER, ROTARY (AMS) < SWITCH > S701 1-771-349-21 SWITCH, KEYBOARD (OPEN/CLOSE) S702 1-771-349-21 SWITCH, KEYBOARD (DISC EJECT) S703 1-771-349-21 SWITCH, KEYBOARD (HISTORY) S704 1-771-349-21 SWITCH, KEYBOARD (MENU/NO) S705 1-771-349-21 SWITCH, KEYBOARD (+100) S706 1-771-349-21 SWITCH, KEYBOARD (YES) S711 1-771-349-21 SWITCH, KEYBOARD (CHECK) S712 1-771-349-21 SWITCH, KEYBOARD (CLEAR) S713 1-771-349-21 SWITCH, KEYBOARD (NAME SEARCH) S714 1-692-537-21 SWITCH, TACTILE (WITH LIGHT) (ALBUM SELECT) S721 1-692-537-11 SWITCH, TACTILE (WITH LIGHT) (MEGA CONTROL) S722 1-771-349-21 SWITCH, KEYBOARD (NO DELAY) S723 1-771-349-21 SWITCH, KEYBOARD (X-FADE) S7241-771-349-21SWITCH, KEYBOARD (FADER) S725 1-771-349-21 SWITCH, KEYBOARD (X)S7261-771-349-21SWITCH, KEYBOARD (x) S767 1-771-349-21 SWITCH, KEYBOARD (G) ************************************************************** 1-683-722-11 KEYBOARD BOARD **************** < CAPACITOR > C821 1-164-159-11 CERAMIC 0.1uF 20.00% 50V C822 1-164-159-11 CERAMIC 0.1uF 20.00% 50V C823 1-126-935-11 ELECT 470uF 20.00% 10V < CONNECTOR > CNP503 1-785-332-11 PIN, CONNECTOR (LIGHT ANGLE)6P CNP504 1-785-328-11 PIN, CONNECTOR (LIGHT ANGRE)2P < DIODE > D821 8-719-109-85 DIODE RD5.1ES-T2B2 D822 8-719-109-85 DIODE RD5.1ES-T2B2 D823 8-719-109-85 DIODE RD5.1ES-T2B2 < JACK > J821 1-785-945-11 CONNECTOR, DIN (KEYBOARD) < COIL > L821 1-424-122-11 FILTER, NOISE L822 1-424-122-11 FILTER, NOISE L823 1-424-122-11 FILTER, NOISE L824 1-424-122-11 FILTER, NOISE ************************************************************** 1-683-727-11 L.T.MOTOR BOARD *************** < MOTOR > M601 A-4672-895-A MOTOR (400) ASSY (TABLE) M602 A-4672-895-A MOTOR (400) ASSY (LOADING) ************************************************************** 1-683-730-11 LED BOARD ********** *4-976-473-01 HOLDER (LED-S) < CAPACITOR > C801 1-164-159-11 CERAMIC 0.1uF 20.00% 50V < DIODE > D801 8-719-069-45 DIODE SELU5E23C-TP15 < RESISTOR > R801 1-249-401-11 CARBON 47 5% 1/4W F ************************************************************** 1-683-725-11 LOCK SW BOARD ************** < SWITCH > S6221-771-604-11SWITCH, DETECTION (LOCK) ************************************************************** JOG LED L.T.MOTOR KEYBOARD LOCK SW