Westinghouse-Electric-Corp-V-2144-1 电路原理图.pdf

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1、MANUAL OF 19S0 MOST-OFTEN-NEEDED RADIO DIAGRAMS fA/stinkouS0 (Clectric (Corporation Models H-210 and H-211 Chassis V-2144 and V-2144-1 AUGNMENT While making the following adjustments, keep the volume control set for maximum output and the signal generator output attenuated to avoid AVC action. _ Con

2、nect Signal Step Generator to Pri. and sec. of 1st and 2nd I-F Stator of R-F toning capacitor (C7) through a 0.1 mfd capacitor NOTE: If the I-F transformers are badly mis-aligned, it may be impossible to obtain sufficient output to use the above system. In this event, it will be necessary to align e

3、ach transformer separately. Start with the last l-F trans former and work forward, connecting the signal generator to the control grid of the tube preceding the transformer under alignment. Ant. trimmer (C8) for max. output is y ! =!3 L I J StS? -1 CONTROL 1 (TAR AT 400K PROM R-t tSATR IISES If AR S

4、OC8 _A_A_A_A_ 43 34 34 34 4 ALL VOLTAOES MEASURED FROM COMMON HE DATIVE LINE USINO A 20,000 OHMS PER VOLT MITCH. Util VOLTAAC I|7 VAC. VOLTAAES SHOULD AC AS SHOWN * 10 AIN CENT. NOTE. I. VOICE COIL DISCONNECTED FOR RESISTANCE MEASUREMENT. C. CIS, CIS AND RA ARE NOT USED IN V-EIA4 CHASSIS (H*EI0|. S. THE PILOT LAMP IS USED IN THE V-2144-1 CHASSIS IH-EDONLV. RI4 IS USED IN THE V-CI44 CHASSIS IH-tlO) IN PLACE OF THE PILOT LAMP. 173 收音机爱 好者资料库 RadioFans.CN