RCA-RP7982A-pr-sm 电路图 维修手册.pdf

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1、RP7982A APRIL/01 RP7982A Audio/Communication LatinAmericaAfterSales Indianapolis, IN 46290 U.S.A. SERVICE DATA INDEX USE ISOLATION TRANSFORMER WHEN SERVICING SAFETY NOTICE Componentshavingspecialsafetycharacteristicsareidentifiedbya( )onschematicsandonthepartslistinthisServiceDataanditsbulletins. Be

2、fore servicing this instrument, it is important that the service technician read and follow the Safety Precautions in the Basic Service Data. RP7982A Basic Service Data FirstEdition-FirstPrinting Copyright 2001 - Thomson Multimedia, Inc. Printed in U.S.A. - Trademark(s)Registered - Marca(s) Registra

3、da(s) Page Number GeneralInformation/SafetyPrecautions.1-2 Disassembly .2-1 Alignments.3-1 Troubleshooting Guides .4-1 TroubleAids(Waveforms,Voltage,TimingCharts).5-1 Replacement Partslist .6-1 ExplodedViews .7-1 BlockDiagrams.8-1 SchematicDiagrams .9-1 Circuit Boards.10-1 CAUTION: Modificationorrep

4、airofthisunitbyunauthorizedpersonsisadirectviolationofFCCRulesPart68.216andcould result in risk of electric shock. You are urged to contact a qualified factory authorized service facility for repairs. RadioFans.CN 收音机爱 好者资料库 ? 5-1 ? ? RadioFans.CN 收音机爱 好者资料库 ? 5-2 ? ? RadioFans.CN 收音机爱 好者资料库 ? 3-1 ?

5、 ? ? ? 3-2 ? ? ? ? 3-3 ? ? ? ? 3-4 ? ? ? ? 3-5 ? ? ? 8-1 7-1 ? 8-3 8-2 SAFETY PRECAUTIONS 1. Before returning the instrument to the customer, always make a safety check of the entire instrument, including, but not limited to, the following items: a. Be sure that no built-in protective devices are de

6、fective and/ or have been defeated during servicing. (1) Protective shields are provided on this instrument to protect both the technician and the customer. Correctly replace all missing protective shields, including any removed for servicing convenience. (2) When reassembling the instrument, be sur

7、e to put back in place all protective devices, including, but not limited to, nonmetallic control knobs, insulating fishpapers, adjustment and compartment covers/shields, and isolation resistor/capacitor networks. Do not operate this instrument or permit it to be operated without all protective devi

8、ces correctly installed and functioning. Servicers who defeat safety features or fail to perform safety checks may be liable for any resulting damage, and may expose themselves and others to possible injury. b. Be sure that there are no cabinet openings through which an adult or child might be able

9、to insert their fingers and contact a hazardous voltage. Such openings include, but are not limited to, (1) excessively wide cabinet ventilation slots, and (2) improperly fitted and/or incorrectly secured cabinet covers. c. Leakage Cold Check - With the instrument AC plug removed from any AC source,

10、 connect an electrical jumper across the two AC plug prongs. Place the instrument AC switch in the on position. Connect one lead of an ohmmeter to the AC plug prongs tied together and touch the other ohmmeter lead in turn to each push button/customer control, exposed metal screws, metallized overlay

11、s and to each cable connector. If the measured resistance is less than 1.0 megohm or greater than 5.2 megohm an abnormality exists that must be corrected before the instrument is returned to the customer. Repeat this test with the AC switch in the off position. d. Leakage Current Hot Check On comple

12、tely assembled instrument, plug the AC line cord directly into a 120V AC outlet. (Do not use an isolation transformer during this test.) Use a leakage current tester or a metering system that complies with American National Standards Institute (ANSI) C101.1 Leakage Current for Appliances and Underwr

13、iters Laboratories (UL) 1492 (Section 67). Measure for current from a known earth ground (metal waterpipe, conduit, etc.) to all exposed metal or conductive parts of the instrument (antenna connections, handle bracket, metal cabinet, screwheads, metallic overlays, push-buttons, control shafts, etc.)

14、, especially any exposed metal parts that offer an electrical return path to the chassis. Any current measured must not exceed 0.5 milliamp. Reverse the instrument power cord plug in the outlet and repeat the test. ANY MEASUREMENTS NOT WITHIN THE LIMITS SPECIFIED HEREIN INDICATE A POTENTIAL SHOCK HA

15、ZARD THAT MUST BE ELIMINATED BEFORE RETURNING THE INSTRUMENT TO THE CUSTOMER OR BEFORE CONNECTING TO ANTENNA OR ACCESSORIES. e. Interconnected Equipment AC Leakage Test Avoid shock hazards. The instrument, accessory, or cable(s) to which this instrument is connected should have the applicable sectio

16、ns of the leakage resistance cold check and the leakage current hot check performed. Do not connect this instrument to an antenna, cable or accessory that exhibits excessive leakage currents. 2. Read and comply with all caution and safety-related notes on or inside the instrument cabinet, and on the

17、 chassis. 3. Design Alteration Warning - Do not alter or add to the mechanical or electrical design of this instrument. Design alterations and additions, including, but not limited to, circuit modifications and the addition of items such as auxiliary audio output connections, cables and accessories,

18、 etc., might alter the safety characteristics of this instrument and create a hazard to the user. Any design alterations or additions will void the manufacturers warranty and will make you, the servicer responsible for personal injury or property damage resulting therefrom. 4. Observe original lead

19、dress. Take extra care to assure correct lead dress in the following areas: (a) near sharp edges, (b) near thermally hot parts - be sure that leads and components do not touch thermally hot parts, and (c) the AC supply. Always inspect in all areas for pinched, out-of-place, or frayed wiring. Do not

20、change spacing between components and the printed-circuit board. Check AC power cord for damage. 5. Components, parts and/or wiring that appear to have overheated or are otherwise damaged should be replaced with components, parts or wiring that meet original specifications. Additionally, determine t

21、he cause of overheating and/or damage and, if necessary, take corrective action to remove any potential safety hazard. 6. PRODUCT SAFETY NOTICE - Many electrical and mechanical parts have special safety-related characteristics, some of which are often not evident from visual inspection, nor can the

22、protection they give be obtained by replacing them with components rated for higher voltage, wattage, etc. Parts that have special safety characteristics are identified in this service data by a ( ! ) on schematics and in the parts list. Use of a substitute replacement that does not have the same sa

23、fety characteristics as the recommended replacement part in this service data parts list might create shock, fire and/or other hazards. Product Safety is under review continuously and new instructions are issued whenever appropriate. For the latest information, always consult the appropriate current

24、 service literature. 1-2 ? 1-3 ? ? 1-4 ? ? 9-2 9-1 BEFORE REPLACING PARTS, READ THE FOLLOWING: REPLACEMENT PARTS Warranty Status of Assemblies and Parts - All assemblies and components shown in this part list are eligible for warranty exchange or replacement except those with a dot shown to the left

25、 of the Description. Assemblies and components with a dot to the left of the Description are NOT eligible for warranty exchange or replacement. Warranty replacement of cabinet parts requires the approval of a Thomson Consumer Electronics Field Service Manager. Warranty Status and Specifications of a

26、ssemblies and components are subject to change without notice. Consult the TCE Parts Pricing Microfiche for the latest warranty status information. Approved Substitute Stock Numbers - Before ordering stock numbers in the part list, look for an approved substitute stock number in the current Price Sc

27、hedule. This will minimize your service time and avoid ordering parts you already have in stock. NOTE: When ordering components that are listed more than once in this part list, always adhere to the serial number application guidelines given in the description column. If a serial number application

28、guideline is not given, always select the component with a value, rating, other specification or identification marking(s) that match those of the corresponding component in the instrument you are servicing. PRODUCT SAFETY NOTE: Components marked with a critical safety symbol have special characteri

29、stics important to safety. Before replacing any of these components, carefully read the PRODUCT SAFETY NOTICE in the basic service data. Do not degrade the safety of the set through improper servicing. Although assemblies as a whole may not be marked with a critical safety symbol , replacement of as

30、semblies with other assemblies not approved may result in a safety hazard. 6-1 Septembe 1999 RP7982A Critical Safety Symbol Not Eligible For Warranty StockSymbolDescriptionDrawingSymbolStockDescriptionDrawing RP7982A CABINET & CHASSIS ASY 14A32194GRILLE SPEAKER L41-02223-01 24A32195GRILLE SPEAKER R4

31、1-02233-00 39A32196DOOR CASS66-02233-00 43A32197SPRING CASS DOOR36-02233-00 538A32198BRACKET CASS DOOR48-02233-03 66A32200LENS DISPLAY43-02233-01 798A32201CABINET FRONT60-02233-00 1095A32005SPEAKER 4 8 OHM 3W14-04008-45 1343A32202KNOB PLAY52-02233-02 1443A32203KNOB TUNING52-02233-01 1643A32204KNOB R

32、EPEAT/PROG/SHUFFLE 52-02233-03 1743A32204KNOB REPEAT/PROG/SHUFFLE 52-02233-03 1843A32205KNOB VOLUME52-02233-00 299A32206DOOR CD66-02233-01 3063A32207DISPLAY LCD91-02233-10 483A32033SPRING CD DOOR36-07999-01 5243A32208KNOB CASS PAUSE53-02233-05 5343A32209KNOB CASS STOP/EJECT53-02233-04 5443A32210KNOB

33、 CASS F.F.53-02233-03 5543A32211KNOB CASS REWIND53-02233-02 5643A32212KNOB CASS PLAY53-02233-01 5743A32213KNOB CASS RECORD53-02233-00 6943A32214KNOB FUNCTION52-02233-05 7245A32215FOOT RUBBER FOAM81-00154-00 7345A32216FOOT RUBBER81-03310-00 7498A32217CABINET REAR61-02233-00 783A31735SPRING, BATTERY -

34、74-07936-02 792A31736CONTACT, BATTERY +74-07936-01 803A32218SPRING BATTERY - AA36-02322-02 813A32219SPRING BATTERY + AA36-03316-01 823A31730SPRING, BATTERY +/-74-07936-00 8382A32220ANTENNA ROD23-02233-00 859A32221DOOR BATTERY58-02233-00 8678A32222HANDLE57-02233-00 CD 73A32223CD MECHANISM00-0033001 C

35、ASSETTE ASY 42A32514LEVER EJECT KICK201010011B 111A32515PAUSE ROD ASY201N03 2139A26216LEAF SWITCH20101023A 362A26219PINCH ROLLER AEM ASY201N06A 385A26220R.F. CLUTCH ASY201N12A 492A26225FLYWHEEL ASY201N13A 511A26226BELT FEEL20109064A 521A26227BELT MIN20111076 5672A26229MOTOR507MT0040 D201198589DIODE

36、1N414802-04148-00R D202198597DIODE02-04001-00 IC201EA33X9424IC03-07312-00 Q201148256TRANSISTOR 2GC945P01-00945-16 Q202148256TRANSISTOR 2GC945P01-00945-16 Q203148256TRANSISTOR 2GC945P01-00945-16 Q204148256TRANSISTOR 2GC945P01-00945-16 SW20139A26984SWITCH PUSH16-10602-01W ELECTRICAL COMPONENTS C53018A

37、32517CAP CERAMIC .02UF050020300 6-1 StockSymbolDescriptionDrawingSymbolStockDescriptionDrawing 6-2 REPLACEMENT PARTS (Continued) Septembe 1999 D101198589DIODE 1N414802-04148-00R D102198589DIODE 1N414802-04148-00R D10316A15172DIODE02-00201-00 D10416A15172DIODE02-00201-00 D10516A31281DIODE02-00321-00

38、D10716A31281DIODE02-00321-00 D301198589DIODE 1N414802-04148-00R D501198597DIODE02-04001-00 D502198597DIODE02-04001-00 D504198597DIODE02-04001-00 D504198597DIODE02-04001-00 D505198589DIODE 1N414802-04148-00R D506198589DIODE 1N414802-04148-00R D601198589DIODE 1N414802-04148-00R D602198589DIODE 1N41480

39、2-04148-00R D603198589DIODE 1N414802-04148-00R D604198589DIODE 1N414802-04148-00R D605198589DIODE 1N414802-04148-00R D607198589DIODE 1N414802-04148-00R D608198589DIODE 1N414802-04148-00R D609198589DIODE 1N414802-04148-00R D610198589DIODE 1N414802-04148-00R D611198589DIODE 1N414802-04148-00R D6121985

40、89DIODE 1N414802-04148-00R D613198589DIODE 1N414802-04148-00R D614198589DIODE 1N414802-04148-00R D615198589DIODE 1N414802-04148-00R D616198589DIODE 1N414802-04148-00R D617198589DIODE 1N414802-04148-00R D619198589DIODE 1N414802-04148-00R D620198589DIODE 1N414802-04148-00R D622198589DIODE 1N414802-041

41、48-00R IC10133A32225IC TA2132F03-02132-01 IC10233A32226IC TA209903-02099-00 IC30133A11623IC TC4052BP03-04552-00 IC30233A11623IC TC4052BP03-04552-00 IC30333A32227IC TC9235P03-09235-00 IC50133A23328IC TA8227P03-08227-00 IC60133A32228IC TC9309AF-12803-09309-04 L10136A32232COIL FM09-45045-00 L10236A3223

42、2COIL FM09-45045-00 L10336A32233COIL 10UH09-70101-00 L10436A32234COIL AM09-06224-54 L60136A32235COIL 100UH09-70102-00 L60236A32233COIL 10UH09-70101-00 Q10115A15171TRANSISTOR01-09018-07 Q102219079TRANSISTOR 2SA733P01-00733-16 Q103148256TRANSISTOR 2GC945P01-00945-16 Q104148256TRANSISTOR 2GC945P01-0094

43、5-16 Q105219079TRANSISTOR 2SA733P01-00733-16 Q106148256TRANSISTOR 2GC945P01-00945-16 Q107148256TRANSISTOR 2GC945P01-00945-16 Q301148256TRANSISTOR 2GC945P01-00945-16 Q302148256TRANSISTOR 2GC945P01-00945-16 Q303148256TRANSISTOR 2GC945P01-00945-16 Q304148256TRANSISTOR 2GC945P01-00945-16 Q50115A31744TRA

44、NSISTOR 8050C01-08050-03S Q50215A31744TRANSISTOR 8050C01-08050-03S Q50315A31744TRANSISTOR 8050C01-08050-03S Q50415A31744TRANSISTOR 8050C01-08050-03S Q50515A31744TRANSISTOR 8050C01-08050-03S Q50615A26815TRANSISTOR 2SD201201-02102-00 Q507219079TRANSISTOR 2SA733P01-00733-16 Q508148256TRANSISTOR 2GC945P

45、01-00945-16 Q50915A10368TRANSISTOR KSA928AY01-00928-00 Q51015A31744TRANSISTOR 8050C01-08050-03S Q511219079TRANSISTOR 2SA733P01-00733-16 Q601148256TRANSISTOR 2GC945P01-00945-16 Q602219079TRANSISTOR 2SA733P01-00733-16 Q603219079TRANSISTOR 2SA733P01-00733-16 Q604148256TRANSISTOR 2GC945P01-00945-16 Q605148256TRANSISTOR 2GC945P01-00945-16 Q606219079TRANSISTOR 2SA733P01-00733-16 Q607148256TRANSISTOR 2GC945P01-00945-16 Q614148256TRAN