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1、C3 ANT 1,400 M.0 a r.TERM BD. RatG,HG 20opoom 2.2,AEG. Schematic Circuit Diagram (Model 6K2, Second Production) RUBBER SPEED LOCK NUT ADJUSTMENT. ;-4v TURN SPEED ADJUSTER 50 THE FEL WILL PROTRUDE 1/1 6 WHEN ALL THE WAY IN, ADJUST GOVERNOR SO AS TO LEAVE Y16 BETWEEN FELT AND DISC, THEN SECURE BY MEAN
2、S OF GOVERNOR SCREW. ADJUST SO THAT SHAFT IS FREE TO ROTATE WITHOUT END PLAY REMOVE TO TAKE OFF GOVERNOR WITH POINTER IN EXTREME CLOCKWISE POSITION &FELT ALL THE WAY IN, ADJUST GOVERNOR, SO AS TO LEAVE jf BETWEEN FELT & DISC, THEN SECURE BY MEANS OF SCREWE, 4111. 60 CYCLES ADJUST SO THAT SHAFT IS FR
3、EE TO ROTATE WITHOUT END PLAY REMOVE TO TAKE OFF GOVERNOR z OIL . KEEP FILLED WITH LIGHT OIL TO INSURE SMOOTH OPERATION Details of 60 -Cycle Motor -3RUBBER OIL WICK RETAINING SCREWS 25 & 50 CYCLES F1-01473-0 DO NOT CHANGE THIS ADJUSTMENT DO NOT CHANGE THIS ADJUSTMENT CORRECT POSITION IN FOURTEENTH H
4、OLE CLOCKWISE FROM CENTER OF ARM KEEP FILLED WITH LIGHT OIL TO INSURE SMOOTH OPERATION Details of 25- or 50-01cle Motor 收音机爱 好者资料库 RadioFans.CN PAGE 74-B 6K 2 & 7U2 0 V.164V, - 4 -TI, 5.3V. AZ. . (,e.1100V. -3V.L tOl- -j C.Gy.,11 .- -3V. -_I PRI. RDJ. 1 ST I.F TRANS. Ho - - - - - - - -20V. - RCA I S
5、HIELD EXT. F 1.F AMP. 6K7 PRI. RDJ. 1T. DET. 4,05C. 6A8 1 A.C. 1T 0 V. 170V. (5.6 f 264V. c G OV. (-31.49 -0.4V tt I.F. TRANS. -3V.t -0.19V. 6.3V. A .C. L _ _ _ OtiV.*) BOY. 2. DEMTUNING GHPVCG TURF rgIBEI SHIELD7 g rRED-r1 GREEN -.1I C3 BOTTOM FRONT OF CHASSIS 286V OV. 315V OV.A.G. v. I -10V. REC5Z
6、4T.I RRowit,4.11 eay.I 11 L yeLLovv,!., HMI I lI A.G. AUDIO6.4V. I31 ,.V-44 6F5 E A.C.7 - 2114Y.- - -0.5V.I 6F6 (7114119 OUTPUT 1V.- OV. 2165v. C30 TT1.340 I I I I tt4 P,11.1111-1 Rodiotron Socket Voltages, Coil, and Trimmer Locations Measured at 115 volts, 60 -cycle supply-Tuned to approximately 1,
7、000 kc (Standard broadcast)- No signal being received-Volume control minimum RED Note:Two voltage values are shown for some read- ings. The value shown in parentheses with asterisk (*) indicureN operating conditions without voltmeter loading. REEK K I R27- 60,000. IJ 3 A BUS Nk IC.RIVOR BROWNSHIELD
8、E XT. RADIO - PHONO -VOL. CONTROL MODEL7U2 COMPENSATOR PAC K 4 RED C40 .GIMP C41 2C39-SHIELD R26 I. MF67 EXT. SHIELD EX% CASE RZ5 470.A. Alignment Procedure STEP CONNECT RICH SIDE OF TEST OSC. 10 - TUNE TEST OSC TO - TURN RADIO DIAL TO ALITUST THE FOLLOWING FOR MAX. OUTPUT 1 8K7 I -F Grid In series
9、with 0.01 mfd 480 kc Quiet Point near 600 kc IlAg Band L15L14 2nd I -F Trans. 2 6A8 Det. Grid in series with 0.01 mfd L13L12 1st I -F Trans. 3 Antenna in series with 203 mord ClWave Trap Minimum Output 4 Antenna in series with 300 ohms 15000 kc 15300 kc C Band CeltC54 Osc.Ant. 5 Antenna in serieswit
10、h 200 mmfd 1400 kc 1400 kc IVO Band C10C3 Osc.Ant. 6600 kc 600 kc PA Band C12L -F Osc. RockGang 7Repeat Step 5 *., I- 24 Oscillator tracks 460 kc above sigma on BandI & -5004, B Oscillator Tracks 460 kc below signal on Bond C !Use*azimut caPaci ty peak. Rock Gang PAGE 7 5-B REPLACEMENT PARTS 6K2 & 7
11、U 2 Insist on genuine factory parts, which are readily identified and may be purchased from authorized dealers Stock No. DESCRIPTION ListStock No. DESCRIPTION List RECEIVER ASSEMBLIES 11400 Resistor -27,000 ohms, carbon type, rA watt -Package of 5 (R10) 12930Board -Antenna andgroundterminal board 11
12、282 Resistor -56,000 ohms, carbon type, 1/10 watt -Package of 5 (R5) 5237Bushing -Variable condenser mounting bushing assembly -Package of 3 12286Resistor -56,000 ohms,insulated,1/4 watt -Package of 5 (R3) 11888Cable -Tuning lamp cable and socket 11398Resistor -220,000 ohms,carbontype, 12032Cable -3
13、 -conductor,shielded, volume 1/10 watt -Package of 5 (R7) control cable, approx.8inches long, completewith4 -contactmalecon- 11453Resistor -270,000 ohms,carbontype, 1/10 watt -Package of 5 (R12) nector and grid contact cap . 11452Resistor -470,000 ohms,carbontype, 11350Cap -Grid contact cap -Package
14、 of 51/10 watt -Package of 5 (R13) 12511Cap -Grid contact cap -Package of 5 11397Resistor -560,000ohms,carbon type, 11289Capacitor -50 Mmfd. (C9)1/10 watt -Package of 5 (R2) 12946Capacitor -133 Mmfd. (C17, C18, C20, C21) 12013Resistor -1 megohm, carbon type, 1/10 watt -Package of 5 (R21) 11623Capaci
15、tor -175 Mmfd. (C26) 12406Capacitor -180 Mmfd. (C22)11626Resistor -2.2 megohms. carbon type,1/4 11290Capacitor -400 Mmfd. (C2. C6) watt -Package of 5 (R6, R20) 11622Capacitor -3,000 Mmfd. (C13) 12607Shield -FirstI.F.transformer shield 11621Capacitor -3,600 Mmfd. (C11) top 11287 4868 11315 Capacitor
16、-4,500 Mmfd. (C14) Capacitor -.005 Mfd. (C29) Capacitor -0.15 Mfd. (C33) 12581 11603 Shield -Second I.F. transformer shield top Shield -Coil shield for Stock Nos. 11617 and 11618 12670Capacitor -.035 Mfd. (C28) 12735Shield -Dial lamp shield -Package of 5 11395Capacitor -.01 Mfd. (C24)12008Shield -I.
17、F.transformershieldfor 4858Capacitor -.01 Mfd. (C25, C27)Stock Nos. 13106 and 13107 . 4836Capacitor -.05 Mfd. (C34) 11199Socket -Dial lamp socket 11414Capacitor -0.1 Mfd. (C15, C42) 12771Socket -Dial lamp socket, located at top 4841Capacitor -0.1 Mfd. (C19) of dial scale 5170 11240 11387 Capacitor -
18、.25 Mfd. (C32) Capacitor -10 Mfd. (C30) Capacitor -10 Mfd. (C16) 11381 11195 11198 Socket -Tuning lamp socket and cover Socket -5 -contact 5Z4 Radiotron socket Socket -7 -contact 6F5 or 6H6 Radiotron socket 5212Capacitor -18 Mfd. (C31) 11196Socket -8 -contact6A8,6F6or6K7 11465Capacitor -Adjustable t
19、rimmer (C12)Radiotron socket 11256Capacitor -Adjustable trimmer for wave - trap, Stock No. 11391 (C1) 12007Spring -Retaining spring for core, Stock No. 12006 -Package of 10 11617Coil -Antenna coil less shield (L2, L3, 12769Switch -Range switch (S2, S3) L4, L5, C3, R1) 12668Tone control and power swi
20、tch (R9, S1) 11618Coil -Oscillator coil less shield (L6, L7, 11391Trap -Wave -trap (LI, C1) L8, L9, L10. L11, C10) 13106Transformer -FirstI.F.transformer 13597Condenser -2 -gang variable tuning con- (L12, L13, C17, C18) denser (C4, C5, C7, C8) 13107Transformer -Second I.F. transformer (L14, L15, C20
21、, C21, C22, R5. R7) 4573Connector -2 -contact femaleconnector for motor cable, receiver section 11848Transformer -Power transformer,100- 125 volts, 50-60 cycles (T1) 5119Connector -3 -contactfemale connector for chassis reproducer cable 11849Transformer -Power transformer, 100- 125 volts, 25-40 cycl
22、es (T1) 6123Connector -4 -contact male connector for cable, Stock No. 12032 11850Transformer -Power transformer, 105- 250 volts, 40-60 cycles (T1) 12006Core -Adjustable coreandstudfor13144Volume control (R11) 13598 13599 Stock No. 13106 and No. 13107 Drive -Variabletuningcondenser vernier drive Foot
23、 -Chassis mounting foot and bracket Stock No.4838 Capacitor(C34), 4573 Connector 8123 Connector and 12013 Resistor(R21) used in Model 7U2 only. assembly -Package of 2 12770Holder -Dial scaleholderandlamp bracket assembly MISCELLANEOUS PARTS - 6K2 12712 4340 12718 11466 11624 11620 8070 Indicator -S
24、t a t i o nselectorindicator pointer Lamp -Dial lamp -Package of 5 Mask -Dial light diffuser complete with red, orange and green -colored screen Resistor -Voltage divider,comprising one 3,500 -ohm, one 13,000 -ohm, one 85 - ohm, one 49 -ohm and one175 -ohm sections (R14, R15, R16. R17, R18) Resistor
25、 -22 ohms, flexible type complete with grid contact cap (R19) Resistor -220 ohms, carbon type,1/10 watt -Package of 5 (R1) Resistor -22,000 ohms, carbon type, Yz watt -Package of 5 (R4) 1Z717 Board - Phono. terminal board. 12772 Bracket - Top dial lamp bracket. 12792Dial - Station selector dial. 126
26、07Shield - I -F Trans. shield top. 12888Cover - Reproducer cover assembly. 12698Crystal - Station selector crystaland es- cutcheon. 11582 Knob - Range switch mob. 12699 Knob - Large station selector knob. 12700 Knob - Small (vernier) station selector knob. 11347 Knob - Tone control or volume control
27、 knob. 11210 Screw - Chassis mounting screw assembly. 11349 Spring -Retaining spring for knob - Stock No. 11347, No.11582 arid No.12700. 4982Spring -Retaining spring for knob - Stock No. 12899. PAGE 76-B 6K2 & 7U2 Stock No. 12641 12640 13600 11469 12667 5118 5119 9766 11253 11886 13576 13577 13578 1
28、3583 4577 13575 13065 3261 13573 13574 11750 13582 4577 3994 10174 3322 3 9 Ea REPLACEMENT PARTS (Continued) DESCRIPTION ListStock No. DESCRIPTION List REPRODUCER ASSEMBLIES Board-Terminal board assembly Bracket-Output transformer mounting bracket Coil-Field coil (L16) Neutralizing coil (L18) Cone-R
29、eproducer cone (L17) Connector -3 -contact male connector for reproducer Connector -3 -contactfemaleconnector for reproducer cable Reproducer complete Transformer-Output transformer (T2) Washer-Spring washer usedtohold field coil securely-Package of 5 MOTOR ASSEMBLIES Motor -105-125volts.60 -cyclemo
30、tor complete (M1) Motor -105-125volts,50 -cyclemotor complete Motor -105-125volts,25 -cyclemotor complete Regulator-Motorspeedregulator pointer,usedon25-and 50 -cycle motors only MOTOR BOARD ASSEMBLIES Connector -2 -contactmaleconnector for motor leads Escutcheon-Motor speed regulator es- cutcheon f
31、or 25- or50 -cycle motors only Lever-Brake mechanism actuating lever, fastens to pivot shaft under base Rest-Pickup rubber rest-Package of 5 Screw-Motor mounting screw assem- bly, for 60 -cycle motor only-Package of 3 Screw-Motor mounting screw assem- bly. for 25- or 50 -cycle motors only- Package o
32、f 3 Screw-No. 4-40 x 9/32, cone pointed, headless set screw for lever, Stock No. 13065-Package of 10 AUTOMATIC BRAKE AND SWITCH ASSEMBLIES Brake-Automaticbrakeandswitch complete Connector -2 -contact male connector for brake switch power supply leads Cover-Switch cover and screw Springs-Completeseto
33、fspringsfor automatic brake-Package of 2 sets Switch-Automatic brake switch (S4) BROWN BROWN FIELD L14 1000o. BROWN -BLACK BROW N BLACK Loudspeaker Wiring M-11172-0 11731 11732 4543 13579 11951 11762 11996 12030 12031 11272 11760 4153 12666 12698 12742 11347 12699 12700 11582 11763 11210 4982 11349
34、11696 11695 PICKUP AND ARM ASSEMBLIES Armature-Pickup armature Coil-Pickup coil (L23) Damper-Pickup damper block complete with damper plate Pickup and arm complete Screw-Needle holding screw-Package of 10 MISCELLANEOUS ASSEMBLIES Box-Used needle box Bracket-Tuning lamp mounting bracket and clamp Cab
35、le -2 -conductorshieldedcable,ap- prox. 18 inches long, connects phono- graph volume control to compensator pack Cable -3 -conductorshielded cable,ap- prox. 19 inches long, complete with 4 - contactfemaleconnector,connects phonograph volume to receiver Clamp-Ccble clamp for phonograph vol- ume contr
36、ol cable, Stock Nos. 12030 and 12031-Package of 5 Compensator-Phonograph compensator pack, comprising one 470 -ohm and one 1,000 -ohm resistors, one .01Mfd., one .1 Mfd. and one 1Mfd. capacitors and one .25 Henry reactor, L24, C39, C40, C41. R25, R26) Connector -4 -contactfemale connector for cable,
37、 Stock No. 12031 Cover-Repfoducer cover Escutcheon-Station selector escutcheon and crystal Escutcheon-Tuning tube escutcheon Knob-Phonograph volume control, re- ceiver volume control, or range switch knob-Package of5 Knob-Largestationselectorknob- Package of 5 Knob-Small (vernier)stationselector kno
38、b-Package of 5 Knob-Tone and power switch knob- Package of 5 Receptacle-Needle receptacle Screw-Chassis mounting screw assem- bly, comprising one screw, one washer, and one lockwasher-Package of 4 Spring-Retaining spring for large knob in Stock No. 12699-Package of 10 Spring-Retaining spring for sma
39、ll knob in Stock Nos. 12699, 11347 and 11582- Package of 5 Turntable-Complete Volumecontrol-Phonograph volume control and switch (R27, S5) SLACK RED - BLACK BLACK -YELLOW PRIMARY 03E01 BLACK REO TR. -BLACK -RED TR. E LEAD - ISLA cK 14 -1.27-ID (1 FILAMENTS BLUE. YELLOW RECT FA YELLOW BROWN BLACK -BROWN RONN f) RECTIFIER FILAMENT SYoUTB Primary Resistance -17.3 ohms total Secondary Resistance -355 ohms total Universal Transformer
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