Sony cdp cx 355 service manual
This is the 72 pages manual for sony cdp cx 355 service manual.
Read or download the pdf for free. If you want to contribute, please upload pdfs to audioservicemanuals.wetransfer.com.
Extracted text from sony cdp cx 355 service manual (Ocr-read)
Page 1
2 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 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. CDP-CX355 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. 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. 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. MODEL IDENTIFICATION - BACK PANEL - PA R T N O . PARTS No. MODEL 4-238-109-0π 4-238-109-1π 4-238-109-2π 4-238-109-3π 4-238-109-4π 4-238-109-5π US Canadian AEP, UK Singapore Australian E
Page 2
3 CDP-CX355 TABLE OF CONTENTS SECTION 1 SERVICING 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. 1. SERVICING NOTE····················································· 3 2. GENERAL··································································· 6 3. DISASSEMBLY·························································· 7 3-1. Case ··············································································· 8 3-2. Bracket (F. W. ) ····························································· 8 3-3. Front Panel Assy ··························································· 9 3-4. DISP Board, JOG Board, KEYBOARD Board ············ 9 3-5. LED Board, Guide (Door. T) ······································ 10 3-6. Table (300) Assy, Cover (P.T.) ···································· 10 3-7. D. MOTOR Board, Door Motor Assy (M83) ············· 11 3-8. D. SW Board ······························································· 12 3-9. Base (Door, Gear) Assy ·············································· 13 3-10. Pop-up Assy ································································ 13 3-11. D. SENS (OUT) Board ·············································· 14 3-12. T. SENS Board ···························································· 14 3-13. D. SENS (IN) Board ·················································· 15 3-14. Back Panel Section ····················································· 15 3-15. MAIN Board, JACK Board ········································ 16 3-16. POWER Board ···························································· 16 3-17. Bracket (Top) , BU Assy ············································· 17 3-18. BU Holder Assy ·························································· 17 3-19. BD Board, Optical Device (KSM-213 BFN) ·············· 18 3-20. L. SW (A) Board, L. SW (B) Board ························· 19 3-21. CDM Assy ·································································· 20 3-22. Motor Assy (Loading) (M82) , Motor Assy (Table) (M81) , L. T. MOTOR Board ····· 20 4. SERVICE MODE ···························································· 21 5. TEST MODE ···································································· 25 5-1. ADJ Mode ··································································· 25 5-2. Key and Display Check Mode ···································· 25 6. ADJUSTMENTS ···························································· 26 6-1. Mechanical Adjustments ············································· 26 6-2. Electrical Adjustment ·················································· 28 7. DIAGRAMS ······································································ 31 7-1. Block Diagrams – BD Section – ································· 32 – MAIN Section – ······················································· 33 7-2. Printed Wiring Board – BD Section – ························ 34 7-3. Schematic Diagram – BD Section – ··························· 35 7-4. Printed Wiring Board – MAIN Section – ··················· 36 7-5. Schematic Diagram – MAIN Section (1/2) – ············· 37 7-6. Schematic Diagram – MAIN Section (2/2) – ············· 38 7-7. Printed Wiring Board – T.SENS Section – ················· 39 7-8. Printed Wiring Board – D.SENS (IN) Section – ········ 39 7-9. Printed Wiring Board – D.SENS (OUT) Section – ···· 39 7-10. Schematic Diagram – SENSOR Section – ················· 39 7-11. Printed Wiring Board – DISPLAY Section – ············· 40 7-12. Schematic Diagram – DISPLAY Section – ················ 41 7-13. Printed Wiring Board – JOG Section – ······················· 42 7-14. Schematic Diagram – JOG Section – ························· 43 7-15. Printed Wiring Board – POWER Section – ················ 44 7-16. Schematic Diagram – POWER Section – ··················· 44 7-17. Printed Wiring Board – JACK Section – ···················· 45 7-18. Schematic Diagram – JACK Section ·························· 45 7-19. Printed Wiring Board – SWITCH/MOTOR Section – ··· 46 7-20. Schematic Diagram – SWITCH/MOTOR Section –····· 46 7-21. IC Pin Functions ························································· 50 8. EXPLODED VIEWS ······················································ 54 8-1. Case Section ································································ 54 8-2. Chassis Section 1 ························································ 55 8-3. Chassis Section 2 ························································ 56 8-4. Back Panel Section ····················································· 57 8-5. Front Panel Section ····················································· 58 8-6. Mechanism Section 1 (CDM54-K1BD45) (Pop-up Assy, Base (Door. Gear) Assy) ······················ 59 8-7. Mechanism Section 2 (CDM54-K1BD45) ················· 60 8-8. Mechanism Section 3 (CDM54-K1BD45) ················· 61 8-9. Mechanism Section 4 (CDM54-K1BD45) ················· 62 8-10. Optical Pick-up Section (BU-K1BD45) ····················· 63 9. ELECTRICAL PARTS LIST ······································· 64