RCA-RP2242A-pr-sch 维修电路原理图.pdf

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1、?Latin America After Sales Indianapolis IN 46290 U.S.A.? ? ? ?!?#?$?% ? ?#?$? ? ?#? ? ? ? ?!? ?#?! ?$? ?%? ?&?(? ?$? ?!? ?)? ? ?(? ?!?*? ?)? ? ?+? ? ?!#$%!?&?&#?(?)?#RadioFans.CN 收音机爱 好者资料库? ? ?RadioFans.CN 收音机爱 好者资料库? ? ? ?SAFETY PRECAUTIONS1. Before returning the instrument to the customer, always

2、make a safety check of the entire instrument, including, but notlimited to, the following items:a. Be sure that no built-in protective devices are defective and/or have been defeated during servicing. (1) Protectiveshields are provided on this instrument to protect both thetechnician and the custome

3、r. Correctly replace all missingprotective shields, including any removed for servicingconvenience. (2) When reassembling the instrument, besure to put back in place all protective devices, including, butnot limited to, nonmetallic control knobs, insulating fishpapers,adjustment and compartment cove

4、rs/shields, and isolationresistor/capacitor networks. Do not operate this instrumentor permit it to be operated without all protective devicescorrectly installed and functioning. Servicers who defeatsafety features or fail to perform safety checks may beliable for any resulting damage, and may expos

5、ethemselves and others to possible injury.b. Be sure that there are no cabinet openings through which anadult or child might be able to insert their fingers and contacta hazardous voltage. Such openings include, but are notlimited to, (1) excessively wide cabinet ventilation slots, and(2) improperly

6、 fitted and/or incorrectly secured cabinet covers.c. Leakage Cold Check - With the instrument AC plug removedfrom any AC source, connect an electrical jumper across thetwo AC plug prongs. Place the instrument AC switch in theon position. Connect one lead of an ohmmeter to the AC plugprongs tied toge

7、ther and touch the other ohmmeter lead inturn to each push button/customer control, exposed metalscrews, metallized overlays and to each cable connector. Ifthe measured resistance is less than 1.0 megohm or greaterthan 5.2 megohm an abnormality exists that must be correctedbefore the instrument is r

8、eturned to the customer. Repeatthis test with the AC switch in the off position.d. Leakage Current Hot CheckOn completely assembled instrument, plug the AC line corddirectly into a 120V AC outlet. (Do not use an isolationtransformer during this test.) Use a leakage current tester ora metering system

9、 that complies with American NationalStandards Institute (ANSI) C101.1 Leakage Current forAppliances and Underwriters Laboratories (UL) 1492 (Section67). Measure for current from a known earth ground (metalwaterpipe, conduit, etc.) to all exposed metal or conductiveparts of the instrument (antenna c

10、onnections, handle bracket,metal cabinet, screwheads, metallic overlays, push-buttons,control shafts, etc.), especially any exposed metal parts thatoffer an electrical return path to the chassis. Any currentmeasured must not exceed 0.5 milliamp. Reverse theinstrument power cord plug in the outlet an

11、d repeat the test.ANY MEASUREMENTS NOT WITHIN THE LIMITSSPECIFIED HEREIN INDICATE A POTENTIAL SHOCKHAZARD THAT MUST BE ELIMINATED BEFORERETURNING THE INSTRUMENT TO THE CUSTOMER ORBEFORE CONNECTING TO ANTENNA ORACCESSORIES.e. Interconnected Equipment AC Leakage TestAvoid shock hazards. The instrument

12、, accessory, or cable(s)to which this instrument is connected should have theapplicable sections of the leakage resistance cold check andthe leakage current hot check performed. Do not connectthis instrument to an antenna, cable or accessory thatexhibits excessive leakage currents.2. Read and comply

13、 with all caution and safety-related notes on orinside the instrument cabinet, and on the chassis.3. Design Alteration Warning - Do not alter or add to the mechanicalor electrical design of this instrument. Design alterations andadditions, including, but not limited to, circuit modifications andthe

14、addition of items such as auxiliary audio output connections,cables and accessories, etc., might alter the safety characteristicsof this instrument and create a hazard to the user. Any designalterations or additions will void the manufacturers warranty andwill make you, the servicer responsible for

15、personal injury orproperty damage resulting therefrom.4. Observe original lead dress. Take extra care to assure correctlead dress in the following areas: (a) near sharp edges, (b) nearthermally hot parts - be sure that leads and components do nottouch thermally hot parts, and (c) the AC supply. Alwa

16、ys inspectin all areas for pinched, out-of-place, or frayed wiring. Do notchange spacing between components and the printed-circuitboard. Check AC power cord for damage.5. Components, parts and/or wiring that appear to have overheatedor are otherwise damaged should be replaced with components,parts

17、or wiring that meet original specifications. Additionally,determine the cause of overheating and/or damage and, ifnecessary, take corrective action to remove any potential safetyhazard.6. PRODUCT SAFETY NOTICE - Many electrical and mechanicalparts have special safety-related characteristics, some of

18、 whichare often not evident from visual inspection, nor can the protectionthey give be obtained by replacing them with components ratedfor higher voltage, wattage, etc. Parts that have special safetycharacteristics are identified in this service data by a ( ! ) onschematics and in the parts list. Us

19、e of a substitute replacementthat does not have the same safety characteristics as therecommended replacement part in this service data parts listmight create shock, fire and/or other hazards. Product Safety isunder review continuously and new instructions are issuedwhenever appropriate. For the lat

20、est information, always consultthe appropriate current service literature.1-2? ?BEFORE REPLACING PARTS, READ THE FOLLOWING:REPLACEMENT PARTSWarranty Status of Assemblies and Parts - All assemblies and components shown in this part list are eligible for warranty exchange or replacement except those w

21、ith a dot shown to the left 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 Statu

22、s and Specifications of assemblies 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

23、 in the current Price Schedule. 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 ser

24、ial number application 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 h

25、ave special characteristics 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 symb

26、ol , replacement of assemblies with other assemblies not approved may result in a safety hazard.1 - 3January2000RP2242ACritical Safety SymbolNot Eligible For WarrantyStockSymbolDescriptionDrawingSymbolStockDescriptionDrawingRP2242ACABINET ASY19A34884DOOR CD11397130228526A34885LENS DISPLAY11797030006

27、398A34886CABINET TOP10397039303443A34887BUTTON CD L12897032055543A34888BUTTON CD R12897032155643A34889BUTTON CD DOOR OPEN1289703005579A34890DOOR BATTERY11197030055845A28458FOOT RUBBER13610010100998A34891CABINET BOTTOM104970300551143A34892KNOB SLIDE A127970360551363A34894DISPLAY LED029613810011573A34

28、895MECHANISM CD TPP-31160000310001841A28410JACK DC02134503101193A34896SPRING CD DOOR16297031303212A28386CONTACT BATTERY +04197031002222A28388CONTACT BATTER +/-04197033002232A28387CONTACT BATTERY -041970320022641A28409JACK STEREO GR021235051022741A28408JACK STEREO BLK021235051012849A28403RES CONTROL

29、VOLUME 50K01020503168293A28415SPRING RECHARGE CONTACT13397035106306A34897LENS CD DOOR11697133002KNO43A34893KNOB SLIDE B12797036155ELECTRICAL COMPONENTSD10116A29089DIODE GMB01-BT00400001401D30116A29089DIODE GMB01-BT00400001401D50416A29089DIODE GMB01-BT00400001401D60316A29090DIODE IN-400100404001300D6

30、0716A28402DIODE SB10-03A3-BT00401003400D70116A29089DIODE GMB01-BT00400001401D70216A29089DIODE GMB01-BT00400001401IC101A33A34898IC BA6377K00206377140IC201A33A34899IC BU9314KS00209314140IC301A33A28390IC LA453M00204533040IC401A33A33734IC BA5901K00205901140IC501A33A34902IC BU34381-0E00234381140IC701A33A

31、34900IC BU9344K00209344140IC702A33A34901IC MN41V17400CTJ-0600217400010LED6001 15A28414TRANSISTOR 2SC3330TAC01912000110Q10115A34906TRANSISTOR 2SA9333SR00310933148Q10415A28399TRANSISTOR 2SC3860AC00303860040Q30315A34903TRANSISTOR 2SC3901-AC00303901040Q30415A34903TRANSISTOR 2SC3901-AC00303901040Q30515A2

32、9088TRANSISTOR 2SC3330-T-AC00303330040Q30515A29088TRANSISTOR 2SC3330-T-AC00303330040Q30615A25193TRANSISTOR 2SA1317U0030137041Q30715A29088TRANSISTOR 2SC3330-T-AC00303330040Q30815A25193TRANSISTOR 2SA1317U0030137041Q31015A28397TRANSISTOR 2SA1564AC00301564040Q31115A34903TRANSISTOR 2SC3901-AC00303901040Q

33、31215A28397TRANSISTOR 2SA1564AC00301564040Q60115A34904TRANSISTOR 2S1585SR00301585149Q60215A34905TRANSISTOR 2SD1246T00304115149Q60315A34905TRANSISTOR 2SD1246T00304115149Q70115A28399TRANSISTOR 2SC3860AC00303860040SW30139A34907SWITCH02012203105SW50139A28465SWITCH TACT020311001541 - 3StockSymbolDescript

34、ionDrawingSymbolStockDescriptionDrawing1 - 4REPLACEMENT PARTS(Continued)January2000SW50239A28465SWITCH TACT02031100154SW50339A28465SWITCH TACT02031100154SW50439A28465SWITCH TACT02031100154SW50539A28465SWITCH TACT02031100154SW50639A28465SWITCH TACT02031100154SW50739A28465SWITCH TACT02031100154SW50839A28404SWITCH02011203103SW50939A34908SWITCH DETECTOR02031100053MISCELLANEOUSADA54979ADAPTER AC 120V DC4.5 500MA05997033202HEA68A34909HEADPHONE STEREO053227324191 - 4RP2242A SCHEMATIC DIAGRAM1-11?