RCA-RP2242A-pr-sch 电路图 维修手册.pdf

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2、库 ? ? ? ? ? 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 defective and/ or have been defeated during servicing. (1) Pr

3、otective 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 sure to put back in place all protective devices, including, b

4、ut 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 devices correctly installed and functioning. Servicers who defe

5、at 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 to insert their fingers and contact a hazardous voltage. Su

6、ch 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, connect an electrical jumper across the two AC plug prongs

7、. 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 overlays and to each cable connector. If the measured resistance i

8、s 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 completely assembled instrument, plug the AC line cord directly i

9、nto 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 Underwriters Laboratories (UL) 1492 (Section 67). Measure for curr

10、ent 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.), especially any exposed metal parts that offer an electric

11、al 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 HAZARD THAT MUST BE ELIMINATED BEFORE RETURNING THE INSTRUMEN

12、T 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 sections of the leakage resistance cold check and the leakage cur

13、rent 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 chassis. 3. Design Alteration Warning - Do not alter or ad

14、d 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, etc., might alter the safety characteristics of this instr

15、ument 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 dress. Take extra care to assure correct lead dress in the

16、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 change spacing between components and the printed-circuit b

17、oard. 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 the cause of overheating and/or damage and, if necessary, ta

18、ke 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 protection they give be obtained by replacing them with com

19、ponents 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 safety characteristics as the recommended replacement part in

20、 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 service literature. 1-2 ? ? ? BEFORE REPLACING PARTS, READ

21、 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 of the Description. Assemblies and components with a dot to the left of the De

22、scription 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 assemblies and components are subject to change without notice. Consult the TCE

23、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 Schedule. This will minimize your service time and avoid ordering parts you alrea

24、dy 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 guideline is not given, always select the component with a value, rating, other

25、 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 characteristics important to safety. Before replacing any of these components, carefully

26、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 assemblies with other assemblies not approved may result in a safety hazard. 1 -

27、3 January2000 RP2242A Critical Safety Symbol Not Eligible For Warranty StockSymbolDescriptionDrawingSymbolStockDescriptionDrawing RP2242A CABINET ASY 19A34884DOOR CD113971302285 26A34885LENS DISPLAY11797030006 398A34886CABINET TOP10397039303 443A34887BUTTON CD L12897032055 543A34888BUTTON CD R128970

28、32155 643A34889BUTTON CD DOOR OPEN12897030055 79A34890DOOR BATTERY11197030055 845A28458FOOT RUBBER13610010100 998A34891CABINET BOTTOM10497030055 1143A34892KNOB SLIDE A12797036055 1363A34894DISPLAY LED02961381001 1573A34895MECHANISM CD TPP-3116000031000 1841A28410JACK DC02134503101 193A34896SPRING CD

29、 DOOR16297031303 212A28386CONTACT BATTERY +04197031002 222A28388CONTACT BATTER +/-04197033002 232A28387CONTACT BATTERY -04197032002 2641A28409JACK STEREO GR02123505102 2741A28408JACK STEREO BLK02123505101 2849A28403RES CONTROL VOLUME 50K01020503168 293A28415SPRING RECHARGE CONTACT 13397035106 306A34

30、897LENS CD DOOR11697133002 KNO43A34893KNOB SLIDE B12797036155 ELECTRICAL COMPONENTS D10116A29089DIODE GMB01-BT00400001401 D30116A29089DIODE GMB01-BT00400001401 D50416A29089DIODE GMB01-BT00400001401 D60316A29090DIODE IN-400100404001300 D60716A28402DIODE SB10-03A3-BT00401003400 D70116A29089DIODE GMB01

31、-BT00400001401 D70216A29089DIODE GMB01-BT00400001401 IC101A33A34898IC BA6377K00206377140 IC201A33A34899IC BU9314KS00209314140 IC301A33A28390IC LA453M00204533040 IC401A33A33734IC BA5901K00205901140 IC501A33A34902IC BU34381-0E00234381140 IC701A33A34900IC BU9344K00209344140 IC702A33A34901IC MN41V17400C

32、TJ-0600217400010 LED6001 15A28414TRANSISTOR 2SC3330TAC01912000110 Q10115A34906TRANSISTOR 2SA9333SR00310933148 Q10415A28399TRANSISTOR 2SC3860AC00303860040 Q30315A34903TRANSISTOR 2SC3901-AC00303901040 Q30415A34903TRANSISTOR 2SC3901-AC00303901040 Q30515A29088TRANSISTOR 2SC3330-T-AC00303330040 Q30515A29

33、088TRANSISTOR 2SC3330-T-AC00303330040 Q30615A25193TRANSISTOR 2SA1317U0030137041 Q30715A29088TRANSISTOR 2SC3330-T-AC00303330040 Q30815A25193TRANSISTOR 2SA1317U0030137041 Q31015A28397TRANSISTOR 2SA1564AC00301564040 Q31115A34903TRANSISTOR 2SC3901-AC00303901040 Q31215A28397TRANSISTOR 2SA1564AC0030156404

34、0 Q60115A34904TRANSISTOR 2S1585SR00301585149 Q60215A34905TRANSISTOR 2SD1246T00304115149 Q60315A34905TRANSISTOR 2SD1246T00304115149 Q70115A28399TRANSISTOR 2SC3860AC00303860040 SW30139A34907SWITCH02012203105 SW50139A28465SWITCH TACT02031100154 1 - 3 StockSymbolDescriptionDrawingSymbolStockDescriptionD

35、rawing 1 - 4 REPLACEMENT PARTS (Continued) January2000 SW50239A28465SWITCH TACT02031100154 SW50339A28465SWITCH TACT02031100154 SW50439A28465SWITCH TACT02031100154 SW50539A28465SWITCH TACT02031100154 SW50639A28465SWITCH TACT02031100154 SW50739A28465SWITCH TACT02031100154 SW50839A28404SWITCH02011203103 SW50939A34908SWITCH DETECTOR02031100053 MISCELLANEOUS ADA54979ADAPTER AC 120V DC4.5 500MA 05997033202 HEA68A34909HEADPHONE STEREO05322732419 1 - 4 RP2242A SCHEMATIC DIAGRAM 1-11 ? ? ? ? ? ?