RCA-Victor-Co-Inc-RC-544 电路原理图.pdf

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1、PAGE 247-C Specifications Frequency Range 540-1,600 kc Intermediate Frequency 455 kc Power Supply Current Type Battery Consumption A-I.5 volt Eveready No. 950 0.25 amperes B-67.5 volts Eveready No. 467 8.5 milliamperes Approximate Life (Intermittent Duty) 3.5 hours 25-40 hours Power Output Undistort

2、ed 0.05 watts . Maximum 0.12 watts Loudspeaker Round Elliptical Type Permanent -Magnet Dynamic 84991-1 RL95-2 3 -inch 2 x 2 inches Voice Coil Impedance 3.0 ohms at 1 1 .8 ohms at 400 cycles 900 cycles Cabinet Dimensions (inches) 3 x 8% x 3% Weight. 4% lbs. (net) Tuning Drive Ratio I to I Replacement

3、 Parts Insist on genuine factory -tested parts, which are readily identified and may be purchased Model BP1 0 Chassis No. RC -544 hem authorized dealen. PA PART DESCRIPTION PART o. T DESCRIPTION CHASSIS ASSEMBLIES (3.) Elliptical Speaker and Lid Support. (RC -544) (Serial No. prefixed D or BD.) 3671

4、7 Capacitor -20 mmfd Same as (2.) above except uses Elliptical 36715 Capacitor -50 mmfd. Speaker. 36716 Capacitor -100 mmfd. (4.) Elliptical or Round Speaker and Lid Support. 12488 Capacitor -270 mmfd. (Serial No. prefixed A, BA, D or 36163 Capacitor-.001 mfd. 33584 Capacitor-.005 mfd Same as (2.) o

5、r (3.) above except loop and 36248 Capacitor-.02 mfd cover assembly is fastened to moulded lid 32787 Capacitor-.05 mfd. by two rivets, instead of cement. 36718 - Capacitor-Electrolytic, 10 mfd., 60 volts 38212 Lid-Moulded lid with lid support, sections of lid 36497 Coil-Oscillator coil hinges, hinge

6、 springs and pins, and 2 rivets-less 36496 Condenser-Variable tuning condenser chrome panel, and loop and cover assembly 36495 Control-Volume control 38204 Loop-Antenna loop and moulded cover (flat) as - 36606 Core-Adjustable core and stud for oscillator coil. sembly, and 2 rivets 36503 Holder-Batte

7、ry holder complete 38205 Catch-Case front cover catch and 2 rivets 36501 Knob-Tuning knob 38206 Hinge-Case front cover hinge and rivets 36502 Knob-Volume control knob 38207 Connector-One set (2) loop contact connectors. 30158 Resistor -820 ohms, 1/s watt 38208 Rivet-One pkg. (10) rivets to fasten lo

8、op in lid. 36714 Resistor -15,000 ohms, V2 watt (5.) Elliptical or Round Speaker and Lid Support. 30787 Resistor -47,000 ohms, !-Z watt (Serial No. prefixed A, BA, D or 3252 Resistor -100,000 ohms, i watt 30652 Resistor -1 megohm, % watt Same as (2.) or (3.) above except loop and 31417 Resistor -3.3

9、 megohm, % watt cover assembly is fastened to moulded lid 30931 Resistor -4.7 megohm, % watt by two snap fasteners, instead of cement. 30992 Resistor -30 megohm, r/ watt 38211 Lid-Moulded lid with lid support, sections of lid 31085 Screw-No. 8-32 x r/s set screw for knobs hinges, hinge springs and p

10、ins, and 2 snap fasteners 36500 Socket-Tube socket -less chrome panel, and loop and cover assembly 36069 Socket -1T4 tube socket 38209 Loop-Antenna loop and moulded cover (flat) as - 36498 Transformer-First I.F. transformer sembly, and 2 snap fasteners 36499 Transformer-Second I.F. transformer 38205

11、 Catch-Case front cover catch and 2 rivets SPEAKER ASSEMBLIES 38206 Hinge-Case front cover hinge and rivets (84991-501) (Round) 38207 Connector-One set (2) loop contact connectors 36504 Speaker -3 -inch P. M. speaker, complete with cone 38210 Fastener-One set (2) snap fasteners to fasten loop and vo

12、ice coil, less output transformer in lid 36505 Transformer-Output transformer. (6.) Revised Stock No. 37855 Lid and Loop as (RL95-2 Elliptical) used on (1.) above. (See note C) 37807 Speaker-Elliptical (a akE pti transformer) 38212 Lid-Moulded lid (no lid support), with sections of speaker lid hinge

13、s, hinge springs an1 pins, and 2 RIVETS - 37806 Transformer-Output transformer. less chromelo .p 37951 Cone-Cone and voice coil panel, and andi cover assembly 38211 Lid-Moulded lid (no lid support), with sections of MISCELLANEOUS ASSEMBLIES, lid hinge, hinge springs and pins, and 2 SNAP 36507 Bottom

14、-Receiver case bottom cover FASTENERS-less chrome panel, and loop and 36508 Center-Receiver case center strip cover assembly 36509 Handle-Carrying handle and bracket 38204 Loop-Antenna loop and moulded cover (flat) as - 36696 Initials -100 initials to each set comprising 25 groups sembly, and 2 rive

15、ts of the average initials and one tube of cement. 38209 Loop-Antenna loop and moulded cover (flat) as - 37156 Catch-Case back cover catch and spring sembly, and 2 snap fasteners 37179 Clip-B+ battery clip 38205 Catch-Case front cover catch and mounting screws 37180 Clip-B- battery clip 38206 Hinge-

16、Case front cover hinge and screws 37857 Pin and Spring -2 pins and 2 springs for lid hinges 38207 Connector-One set (2) loop contact connectors 36695 Strap-Shoulder strap 38208 Rivet-One pkg. (10) rivets to fasten loop in lid 36506 Switch-Power switch 38210 Fastener-One set (2) snap fasteners to fas

17、ten loop A number of changes have been made in this in lid model since the first production. - NOTES - The above parts list applies to all models. (A) 37854 Chrome Panel includes two (2) grille Changes and Parts effected are listed below. assemblies thus making it adaptable to all above pro - (I.) R

18、ound Speaker and No Lid Support. ductions using either round or elliptical speaker. (Serial No. without letter or prefixed B.) (B) 37855 Moulded Lid and Loop Assembly - 37855 Lid-Moulded lid with antenna and cover, sections of Future orders for this item will be supplied with loop lid hinges, and hi

19、nge pins and springs-less chrome fastened in lid with either 2 rivets, or 2 snap panel (See note B) fasteners. Repair parts for this new assembly are 37856 Panel-Chrome front panel with sections of lid listed under Revised Lid for (I ) above. hinges, and hinge pins and springs-less moulded (C) 37853

20、 Moulded Lid and Loop Assembly - lid (See note A) Future orders for this item will be supplied with loop (2.) Round Speaker and Lid Support. fastened in lid with either 2 rivets, or 2 snap (Serial No. prefixed A or BA.) fasteners. Repair parts for this new assembly are Same as (I.) above except uses

21、 Lid Support. listed under (4) or (5) above, depending on type 37853 Lid-Moulded lid with antenna and cover, lid sup- of fastening used. port, sections of lid hinges, and hinge pins and (D) 38211 and 38212 Moulded Lids less Loop springs-less chrome panel. (See note C) Assemblies-These 2 items (one w

22、ith rivets, and one 37854 Panel-Chrome front panel with sections of lid with snap fasteners) will be supplied with lid sup - hinges, and hinge pins and springs-less moulded port not assembled to lid thus making them adapt - lid and lid support. (See note A) able to models with either chrome panels o

23、f any of 37811 Support-Lid support the above productions. RCA VICTOR DIVISION OF RADIO CORPORATION OF AMERICA, e CAMDEN N. J., U. S. A. 收音机爱 好者资料库 RadioFans.CN Alignment Procedure PAGE 298-C BP IO LOOP LI BATTERY E VER EADV N,.50 OR EQUAL 2.511 RED YELLOW 7.5V. -B- BATTERY EVEREADY No.467 OR EQUAL J

24、 Output Meter Alignment.-If this method is used, connect the meter across the voice coil, and turn the receiver volume control to maximum. Test-Oscillator.-For all alignment operations, keep the output as low as possible to avoid a -v -c action. Steps Connect the high side of test-osc. to- Tune test

25、- osc. to- Turn radio dial to- Adjust the fol - lowing for max. peak output- 1 Tuning condenser stator (ant.) in series with .01 mfd. 455 kc Quiet point at 1,600 kc end of dial L7, L6, L5, L4 (2nd and 1st I -F transformers) 2 Radiated signal 1,820 kc(out 1,620 kc Full clockwise of mesh) CS (oscillat

26、or) 3 Radiated signal kcsignal 1,300 kc1,300 kc (antenna) Radiated signal 600 kc 800 kc 800 kc L2 (osc.) 5 Repeat steps 2, 3 and 4. 35X (AVC.wORKING)+Ir0.8 x IOOX (AVC. WORKING) 0.6x 35 600-455 KC. I (455 KC . (455 KC.) (455 KC) (4oO ni) GREEN CI + 1 10-325 MrtF.e 225 MMF 12S CONY. I T4 ass I. F. 2D

27、 DET, AF, AUC. ISX (4OO v) 1S4 OUTPUT APPROX. GAIN DATA USING RCA RIDER CHANALYST T 412E 05C. COIL 34v, Gov. *. + (6001Cc) -7V. (1500 KC.) 1ST. I.F. TRANS. 1ti / C8 O O 20- On C - C9 MMF MMI 1.4 L5 26A 2611. L3 1A CII 45 MME CIO R2 MrD1,1500 W 32 V. 2ND. I.F TRANS. ilt 20V. 20O 2s MMF. 47000n 32A. 2

28、5A l0 -0T MMR E4 10 MEG. 2G VOL. CONTE I MEG. C RED TOP,) L6 - BOTTO/.t L7 - TOP .t35 KC !13 / 14 tia LA -BOTTOM L5 ToP 55 KC . OQ ., ii .it is not necessary to replace the complete assembly of lid and front panel, as either one may be replaced separately in a few minutes by taking out the hinge pin

29、s as described below. First remove the three self -tapping screws that hold the chassis in the center case, and remove the case. Unsolder the leads from the loop lugs. (a) With lid closed, cut hinge pins at point A with sharp cutters. (b) Start removal of pin sections as shown, using long -nose plie

30、rs. (c) Grasp end of pin section with long -nose pliers and ,pull out of hinge. (d) Install new lid, or new front panel, using the replacement hinge pins and springs that are provided with replacement lids and panels. Arrange springs as shown. Apply a small amount of Thermoplastic Cement (G.E. ZV 50

31、57) near outer end of each pin to insure tight and permanent fit. CI C6 C2 -ANT. r1300 KC. C5 -05C. /1620 KC. ,CYj L2- IR 3.3 MEG. C7 IO5 MFD. RED OSC. WEBr 600 KC. E.7 MEG C5 .02 MFD C16 I MMF. .001 MEP TIB _ 20MMF -428 MEG. IC17 = MFlo D. RED RoZ 3.3IZ MEG. o+ YEL OW ( dI .Br, BAT. -7V. OZON fo7 V

32、OLTS VOLTAGES SHOULD HOLD WITHIN t 20 Y. WITH RATED BATTERY VOLTAGE. * MEASURED WITH CHANALYST OR VOLTOHMYST. Replacing Lid or Chrome Panel Low Output: Low output on BP -10 Models that have elliptical speaker may be due to the 1S4 out- C2O 005 MrO. TI 1.01/ Oa 1O 1110 CaLe In nL SPEAKER AC BAT 11/2N

33、DLTaI BLACK- BROWN o SI ONIJD. P-84990 put tube lying close to the speaker magnet, causing disturbance of the space charge in the tube. To remedy this condition, install a felt pad between the speaker frame and the tube to keep the tube upright in its socket and spaced away from the magnet. Loose Co

34、ntrol Knobs: If for any reason either the tuning or volume control knob on Model BP -10 should become loose on its shaft, it may he rigidly mounted in the following manner: (a) Remove the loose control knob from its shaft and scrape off the old cement from both shaft and control knob. (b) Apply a ge

35、nerous even coating of a good cement to the shaft region which is to engage the knob. G.E. Thermoplastic cement, ZV -5057, is excellent for this purpose; it is a green fluid, easily thinned with acetone if necessary. (c) Alrow the cement on the shaft to air-dry, to evaporate any acetone present. (d) Apply a small amount of heat to the shaft, sufficient to soften the cement. (e) Mount knob on shaft while cement is still soft, and allow a few minutes for drying. 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN