Aiwa-CXJN5-cs-sm维修电路原理图.pdf
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1、Model Name Using Similar MechanismNEWCD Mechanism TypeCDM74-K6BD71A, CDM74S-K6BD71A,CDM74S-K6BD72CDBase Unit NameBU-K6BD71A, BU-K6BD72SectionOptical Block NameKSM-213DCPOptical Pick-up NameKSS-213DTape deckModel Name Using Similar MechanismNEWSectionTape Transport Mechanism TypeCWM43FF13, CWM43FR16,
2、CWM43FR26Ver 1.1 2003.069-877-250-02Sony Corporation2003F05-1Home Audio Company 2003.06Published by Sony Engineering CorporationSPECIFICATIONSCX-JN5 is the amplifier, CD player, tape deckand tuner section in JAX-N5/PK5. Continued on next page RadioFans.CN 收音机爱 好者资料库CX-JN5Notes on chip component repl
3、acement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be dam-aged by heat.Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C dur-ing repairing. Do not touch the soldering iron on the same conductor of thecircui
4、t board (within 3 times). Be careful not to apply force on the conductor when solderingor unsoldering.CAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardous ra-diation exposure.SAFETY-RELATED COMPONENT WARNING!COMPONENTS IDENTIFIED
5、 BY MARKOR DOTTEDLINE WITH MARK ON THE SCHEMATIC DIAGRAMSAND IN THE PARTS LIST ARE CRITICAL TO SAFEOPERATION. REPLACE THESE COMPONENTS WITHSONY PARTS WHOSE PART NUMBERS APPEAR ASSHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-LISHED BY SONY.The following caution label is located inside the unit.This appl
6、iance is classified asa CLASS 1 LASER product.The CLASS 1 LASERPRODUCT MARKING islocated on the rear exterior.SAFETY CHECK-OUTAfter correcting the original service problem, perform the follow-ing safety check before releasing the set to the customer:Check the antenna terminals, metal trim, “metalliz
7、ed” knobs,screws, and all other exposed metal parts for AC leakage.Check leakage as described below.LEAKAGE TESTThe AC leakage from any exposed metal part to earth ground andfrom all exposed metal parts to any exposed metal part having areturn to chassis, must not exceed 0.5 mA (500 microamperes.).L
8、eakage current can be measured by any one of three methods.1.A commercial leakage tester, such as the Simpson 229 or RCAWT-540A. Follow the manufacturers instructions to use theseinstruments.2.A battery-operated AC milliammeter. The Data Precision 245digital multimeter is suitable for this job.3.Mea
9、suring the voltage drop across a resistor by means of aVOM or battery-operated AC voltmeter. The “limit” 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 batteryoperated dig
10、ital multimeters that have a 2 V AC range are suit-able. (See Fig. A)ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT!LES COMPOSANTS IDENTIFIS PAR UNE MARQUE SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTEDES PICES SONT CRITIQUES POUR LA SCURITDE FONCTIONNEMENT. NE REMPLACER CES COM-POSANTS QUE PAR DES PIC
11、ES SONY DONT LESNUMROS SONT DONNS DANS CE MANUEL OUDANS LES SUPPLMENTS PUBLIS PAR SONY.RadioFans.CN 收音机爱 好者资料库CX-JN5TABLE OF CONTENTS1.SERVICING NOTES.42.GENERALLocation of Controls .73.DISASSEMBLY3-1.Disassembly Flow .93-2.Case (SIDE-L/R). 103-3.Case (Top) . 103-4.Tray Panel. 113-5.CD Mechanism Dec
12、k (CDM74-K6BD71AS,CDM74S-K6BD71A, CDM74S-K6BD72). 113-6.Front Panel Section . 123-7.Mechanical Deck(CWM43FF13, CWM43FR16, CWM43FR26) . 123-8.Rear Cabinet Section . 133-9.PT Board, MAIN Board. 133-10. Table Assy . 143-11. Motor (TB) Board . 143-12. Motor (LD) Board. 153-13. Base Unit (BU-K6BD71A, BU-
13、K6BD72) . 153-14. Motor Gear Assy (Sled) (M701), BD Board . 163-15. Optical Pick-up (KSS-213D). 164.TEST MODE. 175.ELECTRICAL ADJUSTMENTSCD Section . 196.DIAGRAMS6-1.Block Diagram CD Section . 206-2.Block Diagram TUNER/TAPE/PANEL Section . 216-3.Block Diagram AMP/POWER SUPPLY Section . 226-4.Note fo
14、r Printed Wiring Boards andSchematic Diagrams . 236-5.Printed Wiring Board BD Section (AEP, UK, CIS, E51, MX). 246-6.Schematic Diagram BD Section (AEP, UK, CIS, E51, MX). 256-7.Printed Wiring Board BD Section (US, CND, E, SP, TW, KR, AUS). 266-8.Schematic Diagram BD Section (US, CND, E, SP, TW, KR,
15、AUS). 276-9.Printed Wiring Boards CHANGER Section . 286-10. Schematic Diagram CHANGER Section . 296-11. Schematic Diagram MAIN Section (1/4) . 306-12. Schematic Diagram MAIN Section (2/4) . 316-13. Schematic Diagram MAIN Section (3/4) . 326-14. Schematic Diagram MAIN Section (4/4) . 336-15. Printed
16、Wiring Board MAIN Section . 346-16. Printed Wiring Board HP Section . 356-17. Schematic Diagram HP Section . 356-18. Printed Wiring Board PANEL Section . 366-19. Schematic Diagram PANEL Section . 376-20. Printed Wiring Boards KEY Section . 386-21. Schematic Diagram KEY Section . 396-22. Printed Wiri
17、ng Board PT Section (Except E, E51, SP, TW). 406-23. Schematic Diagram PT Section (Except E, E51, SP, TW). 416-24. Printed Wiring Board PT Section (E, E51, SP, TW) . 426-25. Schematic Diagram PT Section (E, E51, SP, TW) . 436-26. IC Pin Function Description . 477.EXPLODED VIEWS7-1.Case Section . 497
18、-2.Front Panel Section-1. 507-3.Front Panel Section-2. 517-4.Front Panel Section-3. 527-5.Front Panel Section-4. 537-6.Chassis Section . 547-7.CD Mechanism Deck Section-1 (CDM74-K6BD71AS,CDM74S-K6BD71A, CDM74S-K6BD72). 557-8.CD Mechanism Deck Section-2 (CDM74-K6BD71AS,CDM74S-K6BD71A, CDM74S-K6BD72).
19、 567-9.CD Mechanism Deck Section-3 (CDM74-K6BD71A,CDM74S-K6BD71A, CDM74S-K6BD72). 577-10. Base Unit Section (BU-K6BD71A, BU-K6BD72). 588.ELECTRICAL PARTS LIST. 59 AbbreviationAUS : Australian modelCND : Canadian modelE51: Chilean and Peruvian modelsKR: Korean modelMX: Mexican modelSP: Singapore mode
20、lTW: Taiwan modelRadioFans.CN 收音机爱 好者资料库CX-JN5SECTION 1SERVICING NOTESNOTES ON HANDLING THE OPTICAL PICK-UPBLOCK OR BASE UNITThe laser diode in the optical pick-up block may suffer electro-static break-down because of the potential difference generatedby the charged electrostatic load, etc. on cloth
21、ing and the humanbody.During repair, pay attention to electrostatic break-down and alsouse the procedure in the printed matter which is included in therepair parts.The flexible board is easily damaged and should be handled withcare.NOTES ON LASER DIODE EMISSION CHECKThe laser beam on this model is c
22、oncentrated so as to be focusedon the disc reflective surface by the objective lens in the opticalpick-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 OPERATIONCHECKCarry out the “S curve check” in “
23、CD section adjustment” andcheck that the S curve waveforms is output three times. MODEL IDENTIFICATION Back Panel MODELPART No.US model4-245-154-0Chilean and Peruvian models4-245-154-2CIS model4-245-154-4E, Singapore and Taiwan models4-245-154-6Korean and Australian models4-245-154-8AEP and UK model
24、s4-245-280-0Mexican model (made in Mexico)4-245-280-3Mexican model (made in China)4-245-280-4Canadian model4-245-280-5PART No.UNLEADED SOLDERBoards requiring use of unleaded solder are printed with the lead-free mark (LF) indicating the solder contains no lead.(Caution: Some printed circuit boards m
25、ay not come printed withthe lead free mark due to their particular size): LEAD FREE MARKUnleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40 C higher thanordinary solder.Ordinary soldering irons can be used but the iron tip has to beapplied to the solder
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