RCA-RP1224A-pr-sm 电路图 维修手册.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 SAFETY PRECAUTIONS 1. Before returning the instrument to the customer, always make a safety check of

2、 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) Protective shields are provided on this instrument to protect both the technician and the customer. Correctly repl

3、ace 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, but not limited to, nonmetallic control knobs, insulating fishpapers, adjustment and compartment covers/shields,

4、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 defeat safety features or fail to perform safety checks may be liable for any resulting damage, and may expose thems

5、elves 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. Such openings include, but are not limited 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 removed from any AC source, 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

7、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 is less than 1.0 megohm or greater than 5.2 megohm an abnormality exists that must be corrected before the instru

8、ment 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 into a 120V AC outlet. (Do not use an isolation transformer during this test.) Use a leakage current tester or a

9、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 current from a known earth ground (metal waterpipe, conduit, etc.) to all exposed metal or conductive parts of the i

10、nstrument (antenna connections, handle bracket, metal cabinet, screwheads, metallic overlays, push-buttons, control shafts, etc.), 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 c

11、ord 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 INSTRUMENT TO THE CUSTOMER OR BEFORE CONNECTING TO ANTENNA OR ACCESSORIES. e. Interconnected Equipment AC Leakage Test Av

12、oid 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 current hot check performed. Do not connect this instrument to an antenna, cable or accessory that exhibits excessi

13、ve 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 add to the mechanical or electrical design of this instrument. Design alterations and additions, including, but no

14、t 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 instrument and create a hazard to the user. Any design alterations or additions will void the manufacturers warranty

15、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 following areas: (a) near sharp edges, (b) near thermally hot parts - be sure that leads and components do not t

16、ouch 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 board. Check AC power cord for damage. 5. Components, parts and/or wiring that appear to have overheated or are o

17、therwise 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, take corrective action to remove any potential safety hazard. 6. PRODUCT SAFETY NOTICE - Many electrical and mecha

18、nical 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 components rated for higher voltage, wattage, etc. Parts that have special safety characteristics are identified in

19、 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 this service data parts list might create shock, fire and/or other hazards. Product Safety is under review cont

20、inuously and new instructions are issued whenever appropriate. For the latest information, always consult the appropriate current service literature. 1-2 RadioFans.CN 收音机爱 好者资料库 ? ? RadioFans.CN 收音机爱 好者资料库 BEFORE REPLACING PARTS, READ THE FOLLOWING: REPLACEMENT PARTS Warranty Status of Assemblies an

21、d 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 Description are NOT eligible for warranty exchange or replacement. W

22、arranty 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 Parts Pricing Microfiche for the latest warranty status informatio

23、n. 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 already have in stock. NOTE: When ordering components that are listed m

24、ore 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 specification or identification marking(s) that match those of th

25、e 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 read the PRODUCT SAFETY NOTICE in the basic service data. Do not d

26、egrade 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 - 3 December1999 RP1224A Critical Safety Symbol Not Eligible For War

27、ranty StockSymbolDescriptionDrawingSymbolStockDescriptionDrawing RP-1224 CABINET ASY 198A33848CABINET TOP BOTTOM401-22080003-0 863A33857DISPLAY LCD137-30081123-9 1798A33849CABINET TOP FRONT401-22080001-0 196A33855LENS DIAL408-30220821-2 2198A33849CABINET TOP FRONT401-22080001-0 222A33860SHAFT DOOR20

28、4-20232305-1 2395A33856SPEAKER 8 OHM .5W163-40000895-9 2443A33853KNOB FUNCTION401-22088013-0 2543A33854BUTTON SNOOZE/LIGHT401-22080014-0 2643A33852KNOB BAND401-22080011-0 3143A33851KNOB TUNING401-22080010-0 352A33859CONTACT SPRING BATTERY -202-22080003-4 362A33858CONTACT SPRING BATTERY +202-22080001

29、-4 4098A33848CABINET TOP BOTTOM401-22080003-0 449A33850DOOR BATTERY401-22080005-0 472A33977ANTENNA DRUM401-22980006-1 ELECTROCAL COMPONENTS D116A30936DIODE 1N4148102-81441480-8 D216A30936DIODE 1N4148102-81441480-8 D316A30936DIODE 1N4148102-81441480-8 D416A25172DIODE FV1043102-95510430-3 IC133A33863I

30、C TMP0290F104-93602906-0 IC233A33862IC TA8122AF104-18122160-0 IC333A33861IC KA2209104-11220900-0 JACK18A33871JACK DC138-40071800-9 JACK28A33872JACK PHONE138-59735301-6 Q115A33865TRANSISTOR S9014C103-90143000-0 Q215A33864TRANSISTOR C9012H103-90128000-0 Q315A33866TEANSISTOR S9015C103-90153000-0 Q415A3

31、3867TRANSISTOR 8050D103-80504000-0 Q515A33865TRANSISTOR S9014C103-90143000-0 Q615A33866TEANSISTOR S9015C103-90153000-0 Q715A33865TRANSISTOR S9014C103-90143000-0 Q815A33866TEANSISTOR S9015C103-90153000-0 SW139A33875SWITCH SLIDE132-99234017-1 SW239A33874SWITCH SLIDE132-99224027-1 T161A33870TRANSFORMER

32、164-55107690-0 T261A33869TRANSFORMER IFT YELLOW107-39602031-2 T361A33868TRANSFORMER IFT RED107-49601872-2 VR142A33873RESISTOR VAR VOLUME133-11241503-3 X175A33876CRYSTAL 32.768KHZ139-13297680-4 MISCELLANEOUS BAT41A27288BATTERY LITHIUM CR 2025162-38202500-0 LAB4A33976LABEL, POPPOPRP1224 USEUCRP1224USE & CARE GUIDEUCRP1224 1 - 3 ? ? ? ? ? ? ? ? ? ? ? ?