Sony CDP CX220 Service Manual
This is the 52 pages manual for Sony CDP CX220 Service Manual.
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Extracted text from Sony CDP CX220 Service Manual (Ocr-read)
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Ð 2 Ð TABLE OF CONTENTS 1. SERVICING NOTES ............................................... 3 2. GENERAL ................................................................... 6 3. DISASSEMBLY ......................................................... 7 4. TEST MODE .............................................................. 10 5. MECHANICAL ADJUSTMENTS ....................... 13 6. ELECTRICAL ADJUSTMENTS ......................... 19 7. DIAGRAMS ................................................................. 22 7-1. Note for Printed Wiring Boards and Schematic Diagrams ....................................................... 23 7-2. Printed Wiring Board Ð BD Section Ð ........................... 25 7-3. Schematic Diagram Ð BD Section Ð ............................... 27 7-4. Printed Wiring Board Ð Main Section Ð ........................ 29 7-5. Schematic Diagram Ð Main Section Ð ........................... 31 7-6. Printed Wiring Boards Ð Jack Section Ð ........................ 33 7-7. Schematic Diagram Ð Jack Section Ð ............................ 35 7-8. Printed Wiring Boards Ð Panel Section Ð ...................... 37 7-9. Schematic Diagram Ð Panel Section Ð .......................... 39 7-10. Printed Wiring Board Ð Sensor/Motor Section Ð .......... 41 7-11. Schematic Diagram Ð Sensor/Motor Section Ð ............. 43 7-12. IC Pin Function Description ........................................... 47 8. EXPLODED VIEWS ................................................ 49 9. ELECTRICAL PARTS LIST ............................... 56 CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. The 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. 4-998-525-0 4-998-525-1 4-998-525-2 4-998-525-4 4-998-525-5 4-998-525-6 US model Canadian model AEP, AED UK model Singapore model E model Australian model PART No. MODEL MODEL IDENTIFICATION Ñ BACK PANEL Ñ ¥ Abbreviation AED: North European CAUTION INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM. ADVARSEL USYNLIG LASERSTRÅLING VED ÅBNING NÅR SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION. UNDGÅ UDSAETTELSE FOR STRÅLING. VORSICHT UNSICHTBARE LASERSTRAHLUNG, WENN ABDECKUNG GEÖFFNET UND SICHEREITSVERRIEGELUNG ÜBERBRÜCKT. NICHT DEM STRAHL AUSSETZEN. VA R O ! AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALT TIINA NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN. VARNING OSYNLING LASERSTRÅLING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRREN ÄR URKOPPLAD. BETRAKTA EJ STRÅLEN. ADVERSEL USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES OG SIKKERHEDSLÅS BRYTES. UNNGÅ EKSPONERING FOR STRÅLEN. VIGYAZAT !A BURKOLAT NYITÁSAKOR LÁTHATATLAN LÉZERSU GÁRVESZÉLY KERÜLJE A BESUGÁRZÁST (Except for the customers in the United States and Canada) The following caution label is located inside the unit. PART No.
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Ð 3 Ð 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. 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 PUB- LISHED BY SONY. 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 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 indica- tion is 0.75 V, so analog meters must have an accurate low- voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex- amples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suit- able. (See Fig. A) Fig. A. Using an AC voltmeter to check AC leakage. 1.5 k W 0.15 µF AC voltmeter (0.75 V) To Exposed Metal Parts on Set Earth Ground SECTION 1 SERVICING NOTES The laser diode in the optical pick-up block may suffer electro- static 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 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. LASER DIODE AND FOCUS SEARCH OPERATION CHECK Carry out the ÒS curve checkÓ in ÓCD section adjustmentÓ and check that the S curve waveform is output repeatedly.NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT