Stewart-Warner-Corp-206C 电路原理图.pdf

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1、POINTS MARKED V Z ARE GROUNDED TO CHASSIS. 204C: POINTS MARKED! ARE CONNECTED TOGETHER TD FORM 8-. A 3. MFD. CONDENSER (OtAG. NO. 13 CONNECTS FROM THIS CIRCUIT TO CHASSIS._ Diagram Pari Number Number . Description 1 . 83539 Condensermica, 260 mmla. 2 83783 Condensermica, 110 mmla. 3 85394 Condenserm

2、ica, 510 mmfd. 4 110552 Resistorcarbon 47,000 ohms V4 watt. 5 110553 Resistorcarbon 220,000 ohms V4 watt. 6 .110559 Resistorcarbon 470,000 ohms V4 watt. . 7 .110570 Resistorcarbon 2.2 meg. *4 watt. 8 . . .110578 Resistorcarbon 68,000 ohms V4 watt. 9 . .110580 Resistorcarbon 3.3 meg. V4 watt. 10 .116

3、068 Resistorcarbon 680 ohms 1/4 watt. 11 116079 Resistorcarbon 1200 ohms,* 1/4 watt. 12 .116092 Resistor140 ohms, 1 watt W.W. 13 .116706 Condenser.2 mid. 600 volt (206C). 14 _ 116752 Resistor33 ohms 1 watt W.W. 15-17 .116819 Condenser.05 mid. 600 volt. 16 .119193 Condenser.01 mid. 600 volt.- 18 1168

4、19 Condenser.05 mid. 600 volt (206C only). 19 . .118824 Resistorcarbon 1,500 ohms V2 watt. 20 .118921 Lampdial (Mazda No. 47). 21 .119024 Translormer2nd I.F. . 22-23-24 119193 Condenser.01 mid. 600 volt. 25 .119345 Condensertrimmer (loop) . 26 .119414 Condenser.02 mid. 600 volt. 27 .119817 Condenser

5、.004 mid. 600 volt. 28 .119875 Condenser.002 mfd. 600 volt. 29 !. .500131 Translormer1st I.F. . I.F=455KC. 35Z5GT 3oa| I2J5GT osc. SOCKET VOLTAGES NO SIGNAL DIAL TUNED TO 5*0 KC_ VOLUME ON FULL WITH NO SIGNAL PtAL as /- ALL O.C. POTENTIAL /osfo5 35Z5GT MEASUflED 70 B RCCT 11NE VOLTAGE- MTV * 115 BOT

6、TOM VIEW OF CHASSIS H3 35L66T I2SQ7 12 OUTPUT 2nd.DET.-AV.C-AF. REAR OF CHASSIS USE A VOLTMETER OF 1000 OHMS PER VOLT 30A-30B .500256 CondenserElectrolytic j volt 31 .500408 Coiloscillator . . 32A-32B .500443 Condenservariable tuning with arum. 33A-33B .500480 Volume Control1 meg. (with switch). ALI

7、GNMENT PROCEDURE Diagram Part . Number Number Description ( 500509 Switchtone (206B only). 34 1 500546 Switchtone (206C only). 35 H-500587 Cone & Voice Coil for B-p*18 speaker . 36 R-500617 Transformeroutput for R-500618 speaker. 37 !. R-50P618 SpeakerP.M. dynraic (5 ). f 500580 loop Antenna & Cabin

8、et Back (206BA & 206CA). 38 . 500581 loop Antenna & Cabinet Back 206BB & 206CB . 1500678 Loop Antenna & Cabinet Back (206BC & 206CC). 39 . 83783 Condensermica, 110 mmla. . . . 40 .119193 Condenser.01 mid. 600 volt (206B only). 1. Connect the output meter across the voice coil or Irom the plate of th

9、e 35L6GT output tube to B through a .25 mid. condenser. , timber 2. Connect the ground lead irom signal generator to B througn 116467 a .25 mfd. condenser for all alignment steps. 160026 3. Set volume control in maximum position. 112745 4 Set dial pointer to last marking on dial with gang in full 11

10、7057 . r 500563 mesh. 500422 5 Connect hot lead from signal generator to stator on rear section 500428 of gang using 200 mmfd. in series as dummy. sj“7 6. Set generator to 455 KC. and adjust trimmer screws on top 116690 of I.F. transformer cans for maximum output. 160392 7. Connect hot lead to anten

11、na terminal on loop through a 200 S00499 mmfd. condenser as a dummy. Set dial to 1500 KC. and 5J4|4 adjust trimmer on front section of gang for maximum output 500289 on a 1500 KC. generator signal. 8. Place chassis in cabinet and using connections in 7, place loop in position and adjust loop trimmer

12、 at rear of chassis for maximum output while tuning dial to maximum signal. COMPILED BY M. N. BEITMAN, SUPREME PUBLICATIONS MISCELLANEOUS PARTS Description Base for mounting Electrolytic Condenser (206C). Base for mounting Electrolytic Condenser (206B). Clampfor dial cord. Clipcoil mounting . CordDr

13、ive, supplied m 3 lengths. Dial Scale . Knob(walnut) Knob(ivory) . Pointer . . Retaining ring for tuning shatt. Socketoctal base . Socketoctal (rectifier) . Socket8 prong for 117. Socketpilot lamp (with leads). Springdial cord tension. Studdial scale retaining. Tuning Shaft . SF. 455 KC. 143 收音机爱 好者资料库 RadioFans.CN