Zenith-Radio-Corp-N511W 电路原理图.pdf

VOLUME R-26, MOST-OFTEN-NEEDED 1966 RADIO SERVICING INFORMATION ZENITH RADIO MODELS N511C,L,W-N513B,J,W-N514C,G,L USING CHASSIS 5N02 V3 I2AV6 DET. AMP. T V4 50C5 PWR. AMP. <ioo-264) _J I I 235al wr JJ NOTE I.F. TRANSFORMER CORE POSITIONS ARE AS FOLLOWS PRIMARY-BOTTOM SECONDARY- TOP a TUBE POSITIONING GUIDE QMS) (4 50C5 I2BE6 ON Al SECTION _EADS LINE UP ACCORDING TO RED C7B -.80 NOTES: ALL VOLTAGES MEASUREO FROM CHASSIS TO POINTS INDICATED WITH AN A.C. DC- OR VACUUM TUBE VOLTMETER. USE ONLY ZENITH NON-| NOUCTIVE ELECTROLYTIC CONDENSERS FOR REPLACEMENT. IF ANY OTHER TYPE Of ELECTROLYTIC IS USED |T MILL BE NECESSARY THE PART NO AS to aoo C6 shown in ootted lines. PL I ft PL2 USED .-1 ONLY POR MODEL ? 3 I N 514 105-43 1234567 * ALTERNATE PARTS WHEN A I IS NOT USEDSEE SCHEMATIC BELOW 1 T2, 2ND I.F. TRANSFORMER i L5, PRIMARY I L6,SECONDARY- | A.C. INTERLOCK- 0(W|0 o I.F. TRANSFORMER NUMBERING STARTS W|TH *1 TERMINAL AS FIRST TERMINAL CLOCKWISE FROM MARKER CODE TERMINAL AS VIEWED FROM BOTTOM OF CHASSIS. I.F. FREQUENCY 45S KC TUNING RANGE 53S - 1620 KC ALL RESISTORS t20. TOLERANCE. I / 2 WATT. CARBON UNLESS OTHERWISE SPECIF | f 0. I SPEAKER LEADS VOLUME - CONTROL Tl, 1ST I.F. TRANSFORMER - L3, PRIMARY L4, SECONDARY - L2, OSCILLATOR COIL -CIB, ANTENNA TRIMMER CID, OSCILLATOR TRIMMER ALIGNMENT PROCEDURE CONNECT OSCILLATOR TO DUMMY ANTENNA INPUT SIG. FREQUENCY SET DIAL AT TRIMMERS PURPOSE Converter Grid 5 Mfd. 455 Kc. 600 Kc. L3,L4,L5,L6 Align I.F. for max. output. One Turn Loop _ 1600 Kc. 1600 Kc. CID Set Osc. to Dial Scale. Coupled Loosely to Wave magnet 1400 Kc. 1400 Kc. C1B Align Antenna Stage. 158 收音机爱 好者资料库 RadioFans.CN